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import shadow-utils-4.6-10.el8

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CentOS Sources 2020-05-14 22:43:01 +00:00 committed by Andrew Lukoshko
commit b8c57f8786
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SOURCES/shadow-4.6.tar.xz

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0b84eb1010fda5edca2a9d1733f9480200e02de6 SOURCES/shadow-4.6.tar.xz

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GNU GENERAL PUBLIC LICENSE
Version 2, June 1991
Copyright (C) 1989, 1991 Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
Everyone is permitted to copy and distribute verbatim copies
of this license document, but changing it is not allowed.
Preamble
The licenses for most software are designed to take away your
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General Public License applies to most of the Free Software
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When we speak of free software, we are referring to freedom, not
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We protect your rights with two steps: (1) copyright the software, and
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may add an explicit geographical distribution limitation excluding
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YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
POSSIBILITY OF SUCH DAMAGES.
END OF TERMS AND CONDITIONS
How to Apply These Terms to Your New Programs
If you develop a new program, and you want it to be of the greatest
possible use to the public, the best way to achieve this is to make it
free software which everyone can redistribute and change under these terms.
To do so, attach the following notices to the program. It is safest
to attach them to the start of each source file to most effectively
convey the exclusion of warranty; and each file should have at least
the "copyright" line and a pointer to where the full notice is found.
<one line to give the program's name and a brief idea of what it does.>
Copyright (C) <year> <name of author>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
Also add information on how to contact you by electronic and paper mail.
If the program is interactive, make it output a short notice like this
when it starts in an interactive mode:
Gnomovision version 69, Copyright (C) year name of author
Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
This is free software, and you are welcome to redistribute it
under certain conditions; type `show c' for details.
The hypothetical commands `show w' and `show c' should show the appropriate
parts of the General Public License. Of course, the commands you use may
be called something other than `show w' and `show c'; they could even be
mouse-clicks or menu items--whatever suits your program.
You should also get your employer (if you work as a programmer) or your
school, if any, to sign a "copyright disclaimer" for the program, if
necessary. Here is a sample; alter the names:
Yoyodyne, Inc., hereby disclaims all copyright interest in the program
`Gnomovision' (which makes passes at compilers) written by James Hacker.
<signature of Ty Coon>, 1 April 1989
Ty Coon, President of Vice
This General Public License does not permit incorporating your program into
proprietary programs. If your program is a subroutine library, you may
consider it more useful to permit linking proprietary applications with the
library. If this is what you want to do, use the GNU Lesser General
Public License instead of this License.

36
SOURCES/shadow-4.1.5.1-default-range.patch Normal file
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@ -0,0 +1,36 @@
Index: shadow-4.5/lib/semanage.c
===================================================================
--- shadow-4.5.orig/lib/semanage.c
+++ shadow-4.5/lib/semanage.c
@@ -143,6 +143,7 @@ static int semanage_user_mod (semanage_h
goto done;
}
+#if 0
ret = semanage_seuser_set_mlsrange (handle, seuser, DEFAULT_SERANGE);
if (ret != 0) {
fprintf (stderr,
@@ -150,6 +151,7 @@ static int semanage_user_mod (semanage_h
ret = 1;
goto done;
}
+#endif
ret = semanage_seuser_set_sename (handle, seuser, seuser_name);
if (ret != 0) {
@@ -200,6 +202,7 @@ static int semanage_user_add (semanage_h
goto done;
}
+#if 0
ret = semanage_seuser_set_mlsrange (handle, seuser, DEFAULT_SERANGE);
if (ret != 0) {
fprintf (stderr,
@@ -208,6 +211,7 @@ static int semanage_user_add (semanage_h
ret = 1;
goto done;
}
+#endif
ret = semanage_seuser_set_sename (handle, seuser, seuser_name);
if (ret != 0) {

21
SOURCES/shadow-4.1.5.1-info-parent-dir.patch Normal file
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@ -0,0 +1,21 @@
Index: shadow-4.5/man/newusers.8.xml
===================================================================
--- shadow-4.5.orig/man/newusers.8.xml
+++ shadow-4.5/man/newusers.8.xml
@@ -218,7 +218,15 @@
<para>
If this field does not specify an existing directory, the
specified directory is created, with ownership set to the
- user being created or updated and its primary group.
+ user being created or updated and its primary group. Note
+ that newusers does not create parent directories of the new
+ user's home directory. The newusers command will fail to
+ create the home directory if the parent directories do not
+ exist, and will send a message to stderr informing the user
+ of the failure. The newusers command will not halt or return
+ a failure to the calling shell if it fails to create the home
+ directory, it will continue to process the batch of new users
+ specified.
</para>
<para>
If the home directory of an existing user is changed,

13
SOURCES/shadow-4.1.5.1-logmsg.patch Normal file
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@ -0,0 +1,13 @@
Index: shadow-4.5/src/useradd.c
===================================================================
--- shadow-4.5.orig/src/useradd.c
+++ shadow-4.5/src/useradd.c
@@ -323,7 +323,7 @@ static void fail_exit (int code)
user_name, AUDIT_NO_ID,
SHADOW_AUDIT_FAILURE);
#endif
- SYSLOG ((LOG_INFO, "failed adding user '%s', data deleted", user_name));
+ SYSLOG ((LOG_INFO, "failed adding user '%s', exit code: %d", user_name, code));
exit (code);
}

16
SOURCES/shadow-4.1.5.1-userdel-helpfix.patch Normal file
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@ -0,0 +1,16 @@
Index: shadow-4.5/src/userdel.c
===================================================================
--- shadow-4.5.orig/src/userdel.c
+++ shadow-4.5/src/userdel.c
@@ -143,8 +143,9 @@ static void usage (int status)
"\n"
"Options:\n"),
Prog);
- (void) fputs (_(" -f, --force force removal of files,\n"
- " even if not owned by user\n"),
+ (void) fputs (_(" -f, --force force some actions that would fail otherwise\n"
+ " e.g. removal of user still logged in\n"
+ " or files, even if not owned by the user\n"),
usageout);
(void) fputs (_(" -h, --help display this help message and exit\n"), usageout);
(void) fputs (_(" -r, --remove remove home directory and mail spool\n"), usageout);

69
SOURCES/shadow-4.2.1-date-parsing.patch Normal file
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@ -0,0 +1,69 @@
Index: shadow-4.5/libmisc/getdate.y
===================================================================
--- shadow-4.5.orig/libmisc/getdate.y
+++ shadow-4.5/libmisc/getdate.y
@@ -152,6 +152,7 @@ static int yyHaveDay;
static int yyHaveRel;
static int yyHaveTime;
static int yyHaveZone;
+static int yyHaveYear;
static int yyTimezone;
static int yyDay;
static int yyHour;
@@ -293,18 +294,21 @@ date : tUNUMBER '/' tUNUMBER {
yyDay = $3;
yyYear = $5;
}
+ yyHaveYear++;
}
| tUNUMBER tSNUMBER tSNUMBER {
/* ISO 8601 format. yyyy-mm-dd. */
yyYear = $1;
yyMonth = -$2;
yyDay = -$3;
+ yyHaveYear++;
}
| tUNUMBER tMONTH tSNUMBER {
/* e.g. 17-JUN-1992. */
yyDay = $1;
yyMonth = $2;
yyYear = -$3;
+ yyHaveYear++;
}
| tMONTH tUNUMBER {
yyMonth = $1;
@@ -314,6 +318,7 @@ date : tUNUMBER '/' tUNUMBER {
yyMonth = $1;
yyDay = $2;
yyYear = $4;
+ yyHaveYear++;
}
| tUNUMBER tMONTH {
yyMonth = $2;
@@ -323,6 +328,7 @@ date : tUNUMBER '/' tUNUMBER {
yyMonth = $2;
yyDay = $1;
yyYear = $3;
+ yyHaveYear++;
}
;
@@ -395,7 +401,8 @@ relunit : tUNUMBER tYEAR_UNIT {
number : tUNUMBER
{
- if ((yyHaveTime != 0) && (yyHaveDate != 0) && (yyHaveRel == 0))
+ if ((yyHaveTime != 0 || $1 >= 100) && !yyHaveYear
+ && (yyHaveDate != 0) && (yyHaveRel == 0))
yyYear = $1;
else
{
@@ -802,7 +809,7 @@ yylex (void)
return LookupWord (buff);
}
if (c != '(')
- return *yyInput++;
+ return (unsigned char)*yyInput++;
Count = 0;
do
{

16
SOURCES/shadow-4.2.1-no-lock-dos.patch Normal file
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@ -0,0 +1,16 @@
Index: shadow-4.5/lib/commonio.c
===================================================================
--- shadow-4.5.orig/lib/commonio.c
+++ shadow-4.5/lib/commonio.c
@@ -140,7 +140,10 @@ static int do_lock_file (const char *fil
int retval;
char buf[32];
- fd = open (file, O_CREAT | O_EXCL | O_WRONLY, 0600);
+ /* We depend here on the fact, that the file name is pid-specific.
+ * So no O_EXCL here and no DoS.
+ */
+ fd = open (file, O_CREAT | O_TRUNC | O_WRONLY, 0600);
if (-1 == fd) {
if (log) {
(void) fprintf (stderr,

91
SOURCES/shadow-4.2.1-null-tm.patch Normal file
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@ -0,0 +1,91 @@
Index: shadow-4.5/src/faillog.c
===================================================================
--- shadow-4.5.orig/src/faillog.c
+++ shadow-4.5/src/faillog.c
@@ -163,10 +163,14 @@ static void print_one (/*@null@*/const s
}
tm = localtime (&fl.fail_time);
+ if (tm == NULL) {
+ cp = "(unknown)";
+ } else {
#ifdef HAVE_STRFTIME
- strftime (ptime, sizeof (ptime), "%D %H:%M:%S %z", tm);
- cp = ptime;
+ strftime (ptime, sizeof (ptime), "%D %H:%M:%S %z", tm);
+ cp = ptime;
#endif
+ }
printf ("%-9s %5d %5d ",
pw->pw_name, fl.fail_cnt, fl.fail_max);
/* FIXME: cp is not defined ifndef HAVE_STRFTIME */
Index: shadow-4.5/src/chage.c
===================================================================
--- shadow-4.5.orig/src/chage.c
+++ shadow-4.5/src/chage.c
@@ -168,6 +168,10 @@ static void date_to_str (char *buf, size
struct tm *tp;
tp = gmtime (&date);
+ if (tp == NULL) {
+ (void) snprintf (buf, maxsize, "(unknown)");
+ return;
+ }
#ifdef HAVE_STRFTIME
(void) strftime (buf, maxsize, "%Y-%m-%d", tp);
#else
Index: shadow-4.5/src/lastlog.c
===================================================================
--- shadow-4.5.orig/src/lastlog.c
+++ shadow-4.5/src/lastlog.c
@@ -158,13 +158,17 @@ static void print_one (/*@null@*/const s
ll_time = ll.ll_time;
tm = localtime (&ll_time);
+ if (tm == NULL) {
+ cp = "(unknown)";
+ } else {
#ifdef HAVE_STRFTIME
- strftime (ptime, sizeof (ptime), "%a %b %e %H:%M:%S %z %Y", tm);
- cp = ptime;
+ strftime (ptime, sizeof (ptime), "%a %b %e %H:%M:%S %z %Y", tm);
+ cp = ptime;
#else
- cp = asctime (tm);
- cp[24] = '\0';
+ cp = asctime (tm);
+ cp[24] = '\0';
#endif
+ }
if (ll.ll_time == (time_t) 0) {
cp = _("**Never logged in**\0");
Index: shadow-4.5/src/passwd.c
===================================================================
--- shadow-4.5.orig/src/passwd.c
+++ shadow-4.5/src/passwd.c
@@ -455,6 +455,9 @@ static /*@observer@*/const char *date_to
struct tm *tm;
tm = gmtime (&t);
+ if (tm == NULL) {
+ return "(unknown)";
+ }
#ifdef HAVE_STRFTIME
(void) strftime (buf, sizeof buf, "%m/%d/%Y", tm);
#else /* !HAVE_STRFTIME */
Index: shadow-4.5/src/usermod.c
===================================================================
--- shadow-4.5.orig/src/usermod.c
+++ shadow-4.5/src/usermod.c
@@ -210,6 +210,10 @@ static void date_to_str (/*@unique@*//*@
} else {
time_t t = (time_t) date;
tp = gmtime (&t);
+ if (tp == NULL) {
+ strncpy (buf, "unknown", maxsize);
+ return;
+ }
#ifdef HAVE_STRFTIME
strftime (buf, maxsize, "%Y-%m-%d", tp);
#else

349
SOURCES/shadow-4.3.1-manfix.patch Normal file
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@ -0,0 +1,349 @@
Index: shadow-4.5/man/groupmems.8.xml
===================================================================
--- shadow-4.5.orig/man/groupmems.8.xml
+++ shadow-4.5/man/groupmems.8.xml
@@ -179,20 +179,10 @@
<refsect1 id='setup'>
<title>SETUP</title>
<para>
- The <command>groupmems</command> executable should be in mode
- <literal>2770</literal> as user <emphasis>root</emphasis> and in group
- <emphasis>groups</emphasis>. The system administrator can add users to
- group <emphasis>groups</emphasis> to allow or disallow them using the
- <command>groupmems</command> utility to manage their own group
- membership list.
+ In this operating system the <command>groupmems</command> executable
+ is not setuid and regular users cannot use it to manipulate
+ the membership of their own group.
</para>
-
- <programlisting>
- $ groupadd -r groups
- $ chmod 2770 groupmems
- $ chown root.groups groupmems
- $ groupmems -g groups -a gk4
- </programlisting>
</refsect1>
<refsect1 id='configuration'>
Index: shadow-4.5/man/chage.1.xml
===================================================================
--- shadow-4.5.orig/man/chage.1.xml
+++ shadow-4.5/man/chage.1.xml
@@ -102,6 +102,9 @@
Set the number of days since January 1st, 1970 when the password
was last changed. The date may also be expressed in the format
YYYY-MM-DD (or the format more commonly used in your area).
+ If the <replaceable>LAST_DAY</replaceable> is set to
+ <emphasis>0</emphasis> the user is forced to change his password
+ on the next log on.
</para>
</listitem>
</varlistentry>
@@ -119,6 +122,13 @@
system again.
</para>
<para>
+ For example the following can be used to set an account to expire
+ in 180 days:
+ </para>
+ <programlisting>
+ chage -E $(date -d +180days +%Y-%m-%d)
+ </programlisting>
+ <para>
Passing the number <emphasis remap='I'>-1</emphasis> as the
<replaceable>EXPIRE_DATE</replaceable> will remove an account
expiration date.
@@ -233,6 +243,18 @@
The <command>chage</command> program requires a shadow password file to
be available.
</para>
+ <para>
+ The chage program will report only the information from the shadow
+ password file. This implies that configuration from other sources
+ (e.g. LDAP or empty password hash field from the passwd file) that
+ affect the user's login will not be shown in the chage output.
+ </para>
+ <para>
+ The <command>chage</command> program will also not report any
+ inconsistency between the shadow and passwd files (e.g. missing x in
+ the passwd file). The <command>pwck</command> can be used to check
+ for this kind of inconsistencies.
+ </para>
<para>The <command>chage</command> command is restricted to the root
user, except for the <option>-l</option> option, which may be used by
an unprivileged user to determine when their password or account is due
Index: shadow-4.5/man/ja/man5/login.defs.5
===================================================================
--- shadow-4.5.orig/man/ja/man5/login.defs.5
+++ shadow-4.5/man/ja/man5/login.defs.5
@@ -147,10 +147,6 @@ PASS_MAX_DAYS, PASS_MIN_DAYS, PASS_WARN_
shadow パスワード機能のどのプログラムが
どのパラメータを使用するかを示したものである。
.na
-.IP chfn 12
-CHFN_AUTH CHFN_RESTRICT
-.IP chsh 12
-CHFN_AUTH
.IP groupadd 12
GID_MAX GID_MIN
.IP newusers 12
Index: shadow-4.5/man/login.defs.5.xml
===================================================================
--- shadow-4.5.orig/man/login.defs.5.xml
+++ shadow-4.5/man/login.defs.5.xml
@@ -162,6 +162,17 @@
long numeric parameters is machine-dependent.
</para>
+ <para>
+ Please note that the parameters in this configuration file control the
+ behavior of the tools from the shadow-utils component. None of these
+ tools uses the PAM mechanism, and the utilities that use PAM (such as the
+ passwd command) should be configured elsewhere. The only values that
+ affect PAM modules are <emphasis>ENCRYPT_METHOD</emphasis> and <emphasis>SHA_CRYPT_MAX_ROUNDS</emphasis>
+ for pam_unix module, <emphasis>FAIL_DELAY</emphasis> for pam_faildelay module,
+ and <emphasis>UMASK</emphasis> for pam_umask module. Refer to
+ pam(8) for more information.
+ </para>
+
<para>The following configuration items are provided:</para>
<variablelist remap='IP'>
@@ -252,16 +263,6 @@
</listitem>
</varlistentry>
<varlistentry>
- <term>chfn</term>
- <listitem>
- <para>
- <phrase condition="no_pam">CHFN_AUTH</phrase>
- CHFN_RESTRICT
- <phrase condition="no_pam">LOGIN_STRING</phrase>
- </para>
- </listitem>
- </varlistentry>
- <varlistentry>
<term>chgpasswd</term>
<listitem>
<para>
@@ -282,14 +283,6 @@
</para>
</listitem>
</varlistentry>
- <varlistentry condition="no_pam">
- <term>chsh</term>
- <listitem>
- <para>
- CHSH_AUTH LOGIN_STRING
- </para>
- </listitem>
- </varlistentry>
<!-- expiry: no variables (CONSOLE_GROUPS linked, but not used) -->
<!-- faillog: no variables -->
<varlistentry>
@@ -350,34 +343,6 @@
</varlistentry>
<!-- id: no variables -->
<!-- lastlog: no variables -->
- <varlistentry>
- <term>login</term>
- <listitem>
- <para>
- <phrase condition="no_pam">CONSOLE</phrase>
- CONSOLE_GROUPS DEFAULT_HOME
- <phrase condition="no_pam">ENV_HZ ENV_PATH ENV_SUPATH
- ENV_TZ ENVIRON_FILE</phrase>
- ERASECHAR FAIL_DELAY
- <phrase condition="no_pam">FAILLOG_ENAB</phrase>
- FAKE_SHELL
- <phrase condition="no_pam">FTMP_FILE</phrase>
- HUSHLOGIN_FILE
- <phrase condition="no_pam">ISSUE_FILE</phrase>
- KILLCHAR
- <phrase condition="no_pam">LASTLOG_ENAB</phrase>
- LOGIN_RETRIES
- <phrase condition="no_pam">LOGIN_STRING</phrase>
- LOGIN_TIMEOUT LOG_OK_LOGINS LOG_UNKFAIL_ENAB
- <phrase condition="no_pam">MAIL_CHECK_ENAB MAIL_DIR MAIL_FILE
- MOTD_FILE NOLOGINS_FILE PORTTIME_CHECKS_ENAB
- QUOTAS_ENAB</phrase>
- TTYGROUP TTYPERM TTYTYPE_FILE
- <phrase condition="no_pam">ULIMIT UMASK</phrase>
- USERGROUPS_ENAB
- </para>
- </listitem>
- </varlistentry>
<!-- logoutd: no variables -->
<varlistentry>
<term>newgrp / sg</term>
@@ -405,17 +370,6 @@
</listitem>
</varlistentry>
<!-- nologin: no variables -->
- <varlistentry condition="no_pam">
- <term>passwd</term>
- <listitem>
- <para>
- ENCRYPT_METHOD MD5_CRYPT_ENAB OBSCURE_CHECKS_ENAB
- PASS_ALWAYS_WARN PASS_CHANGE_TRIES PASS_MAX_LEN PASS_MIN_LEN
- <phrase condition="sha_crypt">SHA_CRYPT_MAX_ROUNDS
- SHA_CRYPT_MIN_ROUNDS</phrase>
- </para>
- </listitem>
- </varlistentry>
<varlistentry>
<term>pwck</term>
<listitem>
@@ -442,32 +396,6 @@
</para>
</listitem>
</varlistentry>
- <varlistentry>
- <term>su</term>
- <listitem>
- <para>
- <phrase condition="no_pam">CONSOLE</phrase>
- CONSOLE_GROUPS DEFAULT_HOME
- <phrase condition="no_pam">ENV_HZ ENVIRON_FILE</phrase>
- ENV_PATH ENV_SUPATH
- <phrase condition="no_pam">ENV_TZ LOGIN_STRING MAIL_CHECK_ENAB
- MAIL_DIR MAIL_FILE QUOTAS_ENAB</phrase>
- SULOG_FILE SU_NAME
- <phrase condition="no_pam">SU_WHEEL_ONLY</phrase>
- SYSLOG_SU_ENAB
- <phrase condition="no_pam">USERGROUPS_ENAB</phrase>
- </para>
- </listitem>
- </varlistentry>
- <varlistentry>
- <term>sulogin</term>
- <listitem>
- <para>
- ENV_HZ
- <phrase condition="no_pam">ENV_TZ</phrase>
- </para>
- </listitem>
- </varlistentry>
<varlistentry>
<term>useradd</term>
<listitem>
Index: shadow-4.5/man/shadow.5.xml
===================================================================
--- shadow-4.5.orig/man/shadow.5.xml
+++ shadow-4.5/man/shadow.5.xml
@@ -129,7 +129,7 @@
<listitem>
<para>
The date of the last password change, expressed as the number
- of days since Jan 1, 1970.
+ of days since Jan 1, 1970 00:00 UTC.
</para>
<para>
The value 0 has a special meaning, which is that the user
@@ -208,8 +208,8 @@
</para>
<para>
After expiration of the password and this expiration period is
- elapsed, no login is possible using the current user's
- password. The user should contact her administrator.
+ elapsed, no login is possible for the user.
+ The user should contact her administrator.
</para>
<para>
An empty field means that there are no enforcement of an
@@ -224,7 +224,7 @@
<listitem>
<para>
The date of expiration of the account, expressed as the number
- of days since Jan 1, 1970.
+ of days since Jan 1, 1970 00:00 UTC.
</para>
<para>
Note that an account expiration differs from a password
Index: shadow-4.5/man/useradd.8.xml
===================================================================
--- shadow-4.5.orig/man/useradd.8.xml
+++ shadow-4.5/man/useradd.8.xml
@@ -347,6 +347,11 @@
<option>CREATE_HOME</option> is not enabled, no home
directories are created.
</para>
+ <para>
+ The directory where the user's home directory is created must
+ exist and have proper SELinux context and permissions. Otherwise
+ the user's home directory cannot be created or accessed.
+ </para>
</listitem>
</varlistentry>
<varlistentry>
Index: shadow-4.5/man/usermod.8.xml
===================================================================
--- shadow-4.5.orig/man/usermod.8.xml
+++ shadow-4.5/man/usermod.8.xml
@@ -132,7 +132,8 @@
If the <option>-m</option>
option is given, the contents of the current home directory will
be moved to the new home directory, which is created if it does
- not already exist.
+ not already exist. If the current home directory does not exist
+ the new home directory will not be created.
</para>
</listitem>
</varlistentry>
@@ -256,7 +257,8 @@
<listitem>
<para>
Move the content of the user's home directory to the new
- location.
+ location. If the current home directory does not exist
+ the new home directory will not be created.
</para>
<para>
This option is only valid in combination with the
diff --git a/man/login.defs.d/SUB_GID_COUNT.xml b/man/login.defs.d/SUB_GID_COUNT.xml
index 01ace007..93fe7421 100644
--- a/man/login.defs.d/SUB_GID_COUNT.xml
+++ b/man/login.defs.d/SUB_GID_COUNT.xml
@@ -42,7 +42,7 @@
<para>
The default values for <option>SUB_GID_MIN</option>,
<option>SUB_GID_MAX</option>, <option>SUB_GID_COUNT</option>
- are respectively 100000, 600100000 and 10000.
+ are respectively 100000, 600100000 and 65536.
</para>
</listitem>
</varlistentry>
diff --git a/man/login.defs.d/SUB_UID_COUNT.xml b/man/login.defs.d/SUB_UID_COUNT.xml
index 5ad812f7..516417b7 100644
--- a/man/login.defs.d/SUB_UID_COUNT.xml
+++ b/man/login.defs.d/SUB_UID_COUNT.xml
@@ -42,7 +42,7 @@
<para>
The default values for <option>SUB_UID_MIN</option>,
<option>SUB_UID_MAX</option>, <option>SUB_UID_COUNT</option>
- are respectively 100000, 600100000 and 10000.
+ are respectively 100000, 600100000 and 65536.
</para>
</listitem>
</varlistentry>
diff -up shadow-4.6/man/groupadd.8.xml.manfix shadow-4.6/man/groupadd.8.xml
--- shadow-4.6/man/groupadd.8.xml.manfix 2019-04-02 16:35:52.096637444 +0200
+++ shadow-4.6/man/groupadd.8.xml 2019-06-07 14:23:57.477602106 +0200
@@ -320,13 +320,13 @@
<varlistentry>
<term><replaceable>4</replaceable></term>
<listitem>
- <para>GID not unique (when <option>-o</option> not used)</para>
+ <para>GID is already used (when called without <option>-o</option>)</para>
</listitem>
</varlistentry>
<varlistentry>
<term><replaceable>9</replaceable></term>
<listitem>
- <para>group name not unique</para>
+ <para>group name is already used</para>
</listitem>
</varlistentry>
<varlistentry>

277
SOURCES/shadow-4.3.1-selinux-perms.patch Normal file
View File

@ -0,0 +1,277 @@
Index: shadow-4.5/src/chgpasswd.c
===================================================================
--- shadow-4.5.orig/src/chgpasswd.c
+++ shadow-4.5/src/chgpasswd.c
@@ -39,6 +39,13 @@
#include <pwd.h>
#include <stdio.h>
#include <stdlib.h>
+#ifdef WITH_SELINUX
+#include <selinux/selinux.h>
+#include <selinux/avc.h>
+#endif
+#ifdef WITH_LIBAUDIT
+#include <libaudit.h>
+#endif
#ifdef ACCT_TOOLS_SETUID
#ifdef USE_PAM
#include "pam_defs.h"
@@ -76,6 +83,9 @@ static bool sgr_locked = false;
#endif
static bool gr_locked = false;
+/* The name of the caller */
+static char *myname = NULL;
+
/* local function prototypes */
static void fail_exit (int code);
static /*@noreturn@*/void usage (int status);
@@ -300,6 +310,63 @@ static void check_perms (void)
#endif /* ACCT_TOOLS_SETUID */
}
+#ifdef WITH_SELINUX
+static int
+log_callback (int type, const char *fmt, ...)
+{
+ int audit_fd;
+ va_list ap;
+
+ va_start(ap, fmt);
+#ifdef WITH_AUDIT
+ audit_fd = audit_open();
+
+ if (audit_fd >= 0) {
+ char *buf;
+
+ if (vasprintf (&buf, fmt, ap) < 0)
+ goto ret;
+ audit_log_user_avc_message(audit_fd, AUDIT_USER_AVC, buf, NULL, NULL,
+ NULL, 0);
+ audit_close(audit_fd);
+ free(buf);
+ goto ret;
+ }
+
+#endif
+ vsyslog (LOG_USER | LOG_INFO, fmt, ap);
+ret:
+ va_end(ap);
+ return 0;
+}
+
+static void
+selinux_check_root (void)
+{
+ int status = -1;
+ security_context_t user_context;
+ union selinux_callback old_callback;
+
+ if (is_selinux_enabled() < 1)
+ return;
+
+ old_callback = selinux_get_callback(SELINUX_CB_LOG);
+ /* setup callbacks */
+ selinux_set_callback(SELINUX_CB_LOG, (union selinux_callback) &log_callback);
+ if ((status = getprevcon(&user_context)) < 0) {
+ selinux_set_callback(SELINUX_CB_LOG, old_callback);
+ exit(1);
+ }
+
+ status = selinux_check_access(user_context, user_context, "passwd", "passwd", NULL);
+
+ selinux_set_callback(SELINUX_CB_LOG, old_callback);
+ freecon(user_context);
+ if (status != 0 && security_getenforce() != 0)
+ exit(1);
+}
+#endif
+
/*
* open_files - lock and open the group databases
*/
@@ -393,6 +460,7 @@ int main (int argc, char **argv)
const struct group *gr;
struct group newgr;
+ struct passwd *pw = NULL;
int errors = 0;
int line = 0;
@@ -408,8 +476,33 @@ int main (int argc, char **argv)
OPENLOG ("chgpasswd");
+#ifdef WITH_AUDIT
+ audit_help_open ();
+#endif
+
+ /*
+ * Determine the name of the user that invoked this command. This
+ * is really hit or miss because there are so many ways that command
+ * can be executed and so many ways to trip up the routines that
+ * report the user name.
+ */
+ pw = get_my_pwent ();
+ if (NULL == pw) {
+ fprintf (stderr, _("%s: Cannot determine your user name.\n"),
+ Prog);
+ SYSLOG ((LOG_WARN,
+ "Cannot determine the user name of the caller (UID %lu)",
+ (unsigned long) getuid ()));
+ exit (E_NOPERM);
+ }
+ myname = xstrdup (pw->pw_name);
+
check_perms ();
+#ifdef WITH_SELINUX
+ selinux_check_root ();
+#endif
+
#ifdef SHADOWGRP
is_shadow_grp = sgr_file_present ();
#endif
@@ -536,6 +629,15 @@ int main (int argc, char **argv)
newgr.gr_passwd = cp;
}
+#ifdef WITH_AUDIT
+ {
+
+ audit_logger_with_group (AUDIT_GRP_CHAUTHTOK, Prog,
+ "change-password",
+ myname, AUDIT_NO_ID, gr->gr_name,
+ SHADOW_AUDIT_SUCCESS);
+ }
+#endif
/*
* The updated group file entry is then put back and will
* be written to the group file later, after all the
Index: shadow-4.5/src/chpasswd.c
===================================================================
--- shadow-4.5.orig/src/chpasswd.c
+++ shadow-4.5/src/chpasswd.c
@@ -39,6 +39,13 @@
#include <pwd.h>
#include <stdio.h>
#include <stdlib.h>
+#ifdef WITH_SELINUX
+#include <selinux/selinux.h>
+#include <selinux/avc.h>
+#endif
+#ifdef WITH_LIBAUDIT
+#include <libaudit.h>
+#endif
#ifdef USE_PAM
#include "pam_defs.h"
#endif /* USE_PAM */
@@ -297,6 +304,63 @@ static void check_perms (void)
#endif /* USE_PAM */
}
+#ifdef WITH_SELINUX
+static int
+log_callback (int type, const char *fmt, ...)
+{
+ int audit_fd;
+ va_list ap;
+
+ va_start(ap, fmt);
+#ifdef WITH_AUDIT
+ audit_fd = audit_open();
+
+ if (audit_fd >= 0) {
+ char *buf;
+
+ if (vasprintf (&buf, fmt, ap) < 0)
+ goto ret;
+ audit_log_user_avc_message(audit_fd, AUDIT_USER_AVC, buf, NULL, NULL,
+ NULL, 0);
+ audit_close(audit_fd);
+ free(buf);
+ goto ret;
+ }
+
+#endif
+ vsyslog (LOG_USER | LOG_INFO, fmt, ap);
+ret:
+ va_end(ap);
+ return 0;
+}
+
+static void
+selinux_check_root (void)
+{
+ int status = -1;
+ security_context_t user_context;
+ union selinux_callback old_callback;
+
+ if (is_selinux_enabled() < 1)
+ return;
+
+ old_callback = selinux_get_callback(SELINUX_CB_LOG);
+ /* setup callbacks */
+ selinux_set_callback(SELINUX_CB_LOG, (union selinux_callback) &log_callback);
+ if ((status = getprevcon(&user_context)) < 0) {
+ selinux_set_callback(SELINUX_CB_LOG, old_callback);
+ exit(1);
+ }
+
+ status = selinux_check_access(user_context, user_context, "passwd", "passwd", NULL);
+
+ selinux_set_callback(SELINUX_CB_LOG, old_callback);
+ freecon(user_context);
+ if (status != 0 && security_getenforce() != 0)
+ exit(1);
+}
+#endif
+
/*
* open_files - lock and open the password databases
*/
@@ -405,8 +469,16 @@ int main (int argc, char **argv)
OPENLOG ("chpasswd");
+#ifdef WITH_AUDIT
+ audit_help_open ();
+#endif
+
check_perms ();
+#ifdef WITH_SELINUX
+ selinux_check_root ();
+#endif
+
#ifdef USE_PAM
if (!use_pam)
#endif /* USE_PAM */
@@ -566,6 +638,11 @@ int main (int argc, char **argv)
newpw.pw_passwd = cp;
}
+#ifdef WITH_AUDIT
+ audit_logger (AUDIT_USER_CHAUTHTOK, Prog,
+ "updating-password",
+ pw->pw_name, (unsigned int) pw->pw_uid, 1);
+#endif
/*
* The updated password file entry is then put back and will
* be written to the password file later, after all the
Index: shadow-4.5/src/Makefile.am
===================================================================
--- shadow-4.5.orig/src/Makefile.am
+++ shadow-4.5/src/Makefile.am
@@ -87,9 +87,9 @@ chage_LDADD = $(LDADD) $(LIBPAM_SUID)
newuidmap_LDADD = $(LDADD) $(LIBSELINUX)
newgidmap_LDADD = $(LDADD) $(LIBSELINUX)
chfn_LDADD = $(LDADD) $(LIBPAM) $(LIBSELINUX) $(LIBCRYPT_NOPAM) $(LIBSKEY) $(LIBMD)
-chgpasswd_LDADD = $(LDADD) $(LIBPAM_SUID) $(LIBSELINUX) $(LIBCRYPT)
+chgpasswd_LDADD = $(LDADD) $(LIBPAM_SUID) $(LIBSELINUX) $(LIBAUDIT) $(LIBCRYPT)
chsh_LDADD = $(LDADD) $(LIBPAM) $(LIBSELINUX) $(LIBCRYPT_NOPAM) $(LIBSKEY) $(LIBMD)
-chpasswd_LDADD = $(LDADD) $(LIBPAM) $(LIBSELINUX) $(LIBCRYPT)
+chpasswd_LDADD = $(LDADD) $(LIBPAM) $(LIBSELINUX) $(LIBAUDIT) $(LIBCRYPT)
gpasswd_LDADD = $(LDADD) $(LIBAUDIT) $(LIBSELINUX) $(LIBCRYPT)
groupadd_LDADD = $(LDADD) $(LIBPAM_SUID) $(LIBAUDIT) $(LIBSELINUX)
groupdel_LDADD = $(LDADD) $(LIBPAM_SUID) $(LIBAUDIT) $(LIBSELINUX)

41
SOURCES/shadow-4.5-crypt_h.patch Normal file
View File

@ -0,0 +1,41 @@
Index: shadow-4.5/configure.ac
===================================================================
--- shadow-4.5.orig/configure.ac
+++ shadow-4.5/configure.ac
@@ -32,9 +32,9 @@ AC_HEADER_STDC
AC_HEADER_SYS_WAIT
AC_HEADER_STDBOOL
-AC_CHECK_HEADERS(errno.h fcntl.h limits.h unistd.h sys/time.h utmp.h \
- utmpx.h termios.h termio.h sgtty.h sys/ioctl.h syslog.h paths.h \
- utime.h ulimit.h sys/resource.h gshadow.h lastlog.h \
+AC_CHECK_HEADERS(crypt.h errno.h fcntl.h limits.h unistd.h sys/time.h \
+ utmp.h utmpx.h termios.h termio.h sgtty.h sys/ioctl.h syslog.h \
+ paths.h utime.h ulimit.h sys/resource.h gshadow.h lastlog.h \
locale.h rpc/key_prot.h netdb.h acl/libacl.h attr/libattr.h \
attr/error_context.h)
Index: shadow-4.5/lib/defines.h
===================================================================
--- shadow-4.5.orig/lib/defines.h
+++ shadow-4.5/lib/defines.h
@@ -4,6 +4,8 @@
#ifndef _DEFINES_H_
#define _DEFINES_H_
+#include "config.h"
+
#if HAVE_STDBOOL_H
# include <stdbool.h>
#else
@@ -94,6 +96,10 @@ char *strchr (), *strrchr (), *strtok ()
# include <unistd.h>
#endif
+#if HAVE_CRYPT_H
+# include <crypt.h> /* crypt(3) may be defined in here */
+#endif
+
#if TIME_WITH_SYS_TIME
# include <sys/time.h>
# include <time.h>

110
SOURCES/shadow-4.5-goodname.patch Normal file
View File

@ -0,0 +1,110 @@
Index: shadow-4.5/libmisc/chkname.c
===================================================================
--- shadow-4.5.orig/libmisc/chkname.c
+++ shadow-4.5/libmisc/chkname.c
@@ -47,27 +47,46 @@
#include "chkname.h"
static bool is_valid_name (const char *name)
-{
+{
/*
- * User/group names must match [a-z_][a-z0-9_-]*[$]
- */
- if (('\0' == *name) ||
- !((('a' <= *name) && ('z' >= *name)) || ('_' == *name))) {
+ * User/group names must match gnu e-regex:
+ * [a-zA-Z0-9_.][a-zA-Z0-9_.-]{0,30}[a-zA-Z0-9_.$-]?
+ *
+ * as a non-POSIX, extension, allow "$" as the last char for
+ * sake of Samba 3.x "add machine script"
+ *
+ * Also do not allow fully numeric names or just "." or "..".
+ */
+ int numeric;
+
+ if ('\0' == *name ||
+ ('.' == *name && (('.' == name[1] && '\0' == name[2]) ||
+ '\0' == name[1])) ||
+ !((*name >= 'a' && *name <= 'z') ||
+ (*name >= 'A' && *name <= 'Z') ||
+ (*name >= '0' && *name <= '9') ||
+ *name == '_' ||
+ *name == '.')) {
return false;
}
+ numeric = isdigit(*name);
+
while ('\0' != *++name) {
- if (!(( ('a' <= *name) && ('z' >= *name) ) ||
- ( ('0' <= *name) && ('9' >= *name) ) ||
- ('_' == *name) ||
- ('-' == *name) ||
- ( ('$' == *name) && ('\0' == *(name + 1)) )
+ if (!((*name >= 'a' && *name <= 'z') ||
+ (*name >= 'A' && *name <= 'Z') ||
+ (*name >= '0' && *name <= '9') ||
+ *name == '_' ||
+ *name == '.' ||
+ *name == '-' ||
+ (*name == '$' && name[1] == '\0')
)) {
return false;
}
+ numeric &= isdigit(*name);
}
- return true;
+ return !numeric;
}
bool is_valid_user_name (const char *name)
Index: shadow-4.5/man/groupadd.8.xml
===================================================================
--- shadow-4.5.orig/man/groupadd.8.xml
+++ shadow-4.5/man/groupadd.8.xml
@@ -256,10 +256,14 @@
<refsect1 id='caveats'>
<title>CAVEATS</title>
<para>
- Groupnames must start with a lower case letter or an underscore,
- followed by lower case letters, digits, underscores, or dashes.
- They can end with a dollar sign.
- In regular expression terms: [a-z_][a-z0-9_-]*[$]?
+ Groupnames may contain only lower and upper case letters, digits,
+ underscores, or dashes. They can end with a dollar sign.
+
+ Dashes are not allowed at the beginning of the groupname.
+ Fully numeric groupnames and groupnames . or .. are
+ also disallowed.
+
+ In regular expression terms: [a-zA-Z0-9_.][a-zA-Z0-9_.-]*[$]?
</para>
<para>
Groupnames may only be up to &GROUP_NAME_MAX_LENGTH; characters long.
Index: shadow-4.5/man/useradd.8.xml
===================================================================
--- shadow-4.5.orig/man/useradd.8.xml
+++ shadow-4.5/man/useradd.8.xml
@@ -633,10 +633,16 @@
</para>
<para>
- Usernames must start with a lower case letter or an underscore,
- followed by lower case letters, digits, underscores, or dashes.
- They can end with a dollar sign.
- In regular expression terms: [a-z_][a-z0-9_-]*[$]?
+ Usernames may contain only lower and upper case letters, digits,
+ underscores, or dashes. They can end with a dollar sign.
+
+ Dashes are not allowed at the beginning of the username.
+ Fully numeric usernames and usernames . or .. are
+ also disallowed. It is not recommended to use usernames beginning
+ with . character as their home directories will be hidden in
+ the <command>ls</command> output.
+
+ In regular expression terms: [a-zA-Z0-9_.][a-zA-Z0-9_.-]*[$]?
</para>
<para>
Usernames may only be up to 32 characters long.

84
SOURCES/shadow-4.5-long-entry.patch Normal file
View File

@ -0,0 +1,84 @@
diff -up shadow-4.5/lib/defines.h.long-entry shadow-4.5/lib/defines.h
--- shadow-4.5/lib/defines.h.long-entry 2014-09-01 16:36:40.000000000 +0200
+++ shadow-4.5/lib/defines.h 2018-04-20 11:53:07.419308212 +0200
@@ -382,4 +382,7 @@ extern char *strerror ();
# endif
#endif
+/* Maximum length of passwd entry */
+#define PASSWD_ENTRY_MAX_LENGTH 32768
+
#endif /* _DEFINES_H_ */
diff -up shadow-4.5/lib/pwio.c.long-entry shadow-4.5/lib/pwio.c
--- shadow-4.5/lib/pwio.c.long-entry 2015-11-17 17:45:15.000000000 +0100
+++ shadow-4.5/lib/pwio.c 2018-04-20 12:10:24.400837235 +0200
@@ -79,7 +79,10 @@ static int passwd_put (const void *ent,
|| (pw->pw_gid == (gid_t)-1)
|| (valid_field (pw->pw_gecos, ":\n") == -1)
|| (valid_field (pw->pw_dir, ":\n") == -1)
- || (valid_field (pw->pw_shell, ":\n") == -1)) {
+ || (valid_field (pw->pw_shell, ":\n") == -1)
+ || (strlen (pw->pw_name) + strlen (pw->pw_passwd) +
+ strlen (pw->pw_gecos) + strlen (pw->pw_dir) +
+ strlen (pw->pw_shell) + 100 > PASSWD_ENTRY_MAX_LENGTH)) {
return -1;
}
diff -up shadow-4.5/lib/sgetpwent.c.long-entry shadow-4.5/lib/sgetpwent.c
--- shadow-4.5/lib/sgetpwent.c.long-entry 2014-09-01 16:36:40.000000000 +0200
+++ shadow-4.5/lib/sgetpwent.c 2018-04-20 12:16:31.911513808 +0200
@@ -57,7 +57,7 @@
struct passwd *sgetpwent (const char *buf)
{
static struct passwd pwent;
- static char pwdbuf[1024];
+ static char pwdbuf[PASSWD_ENTRY_MAX_LENGTH];
register int i;
register char *cp;
char *fields[NFIELDS];
@@ -67,8 +67,10 @@ struct passwd *sgetpwent (const char *bu
* the password structure remain valid.
*/
- if (strlen (buf) >= sizeof pwdbuf)
+ if (strlen (buf) >= sizeof pwdbuf) {
+ fprintf (stderr, "Too long passwd entry encountered, file corruption?\n");
return 0; /* fail if too long */
+ }
strcpy (pwdbuf, buf);
/*
diff -up shadow-4.5/lib/sgetspent.c.long-entry shadow-4.5/lib/sgetspent.c
--- shadow-4.5/lib/sgetspent.c.long-entry 2014-09-01 16:36:40.000000000 +0200
+++ shadow-4.5/lib/sgetspent.c 2018-04-20 12:16:54.505056257 +0200
@@ -48,7 +48,7 @@
*/
struct spwd *sgetspent (const char *string)
{
- static char spwbuf[1024];
+ static char spwbuf[PASSWD_ENTRY_MAX_LENGTH];
static struct spwd spwd;
char *fields[FIELDS];
char *cp;
@@ -61,6 +61,7 @@ struct spwd *sgetspent (const char *stri
*/
if (strlen (string) >= sizeof spwbuf) {
+ fprintf (stderr, "Too long shadow entry encountered, file corruption?\n");
return 0; /* fail if too long */
}
strcpy (spwbuf, string);
diff -up shadow-4.5/lib/shadowio.c.long-entry shadow-4.5/lib/shadowio.c
--- shadow-4.5/lib/shadowio.c.long-entry 2016-12-07 06:30:41.000000001 +0100
+++ shadow-4.5/lib/shadowio.c 2018-04-20 12:12:03.292171667 +0200
@@ -79,7 +79,9 @@ static int shadow_put (const void *ent,
if ( (NULL == sp)
|| (valid_field (sp->sp_namp, ":\n") == -1)
- || (valid_field (sp->sp_pwdp, ":\n") == -1)) {
+ || (valid_field (sp->sp_pwdp, ":\n") == -1)
+ || (strlen (sp->sp_namp) + strlen (sp->sp_pwdp) +
+ 1000 > PASSWD_ENTRY_MAX_LENGTH)) {
return -1;
}

64
SOURCES/shadow-4.5-usermod-unlock.patch Normal file
View File

@ -0,0 +1,64 @@
Index: shadow-4.5/src/usermod.c
===================================================================
--- shadow-4.5.orig/src/usermod.c
+++ shadow-4.5/src/usermod.c
@@ -455,14 +455,17 @@ static char *new_pw_passwd (char *pw_pas
strcat (buf, pw_pass);
pw_pass = buf;
} else if (Uflg && pw_pass[0] == '!') {
- char *s;
+ char *s = pw_pass;
- if (pw_pass[1] == '\0') {
+ while ('!' == *s)
+ ++s;
+
+ if (*s == '\0') {
fprintf (stderr,
_("%s: unlocking the user's password would result in a passwordless account.\n"
"You should set a password with usermod -p to unlock this user's password.\n"),
Prog);
- return pw_pass;
+ return NULL;
}
#ifdef WITH_AUDIT
@@ -471,12 +474,15 @@ static char *new_pw_passwd (char *pw_pas
user_newname, (unsigned int) user_newid, 1);
#endif
SYSLOG ((LOG_INFO, "unlock user '%s' password", user_newname));
- s = pw_pass;
- while ('\0' != *s) {
- *s = *(s + 1);
- s++;
- }
+ memmove (pw_pass, s, strlen (s) + 1);
} else if (pflg) {
+ if (strchr (user_pass, ':') != NULL) {
+ fprintf (stderr,
+ _("%s: The password field cannot contain a colon character.\n"),
+ Prog);
+ return NULL;
+
+ }
#ifdef WITH_AUDIT
audit_logger (AUDIT_USER_CHAUTHTOK, Prog,
"updating-password",
@@ -525,6 +531,8 @@ static void new_pwent (struct passwd *pw
if ( (!is_shadow_pwd)
|| (strcmp (pwent->pw_passwd, SHADOW_PASSWD_STRING) != 0)) {
pwent->pw_passwd = new_pw_passwd (pwent->pw_passwd);
+ if (pwent->pw_passwd == NULL)
+ fail_exit (E_PW_UPDATE);
}
if (uflg) {
@@ -639,6 +647,8 @@ static void new_spent (struct spwd *spen
* + aging has been requested
*/
spent->sp_pwdp = new_pw_passwd (spent->sp_pwdp);
+ if (spent->sp_pwdp == NULL)
+ fail_exit(E_PW_UPDATE);
if (pflg) {
spent->sp_lstchg = (long) gettime () / SCALE;

2365
SOURCES/shadow-4.6-audit-update.patch Normal file
View File

File diff suppressed because it is too large Load Diff

642
SOURCES/shadow-4.6-check-local-groups.patch Normal file
View File

@ -0,0 +1,642 @@
From 140510de9de4771feb3af1d859c09604043a4c9b Mon Sep 17 00:00:00 2001
From: ikerexxe <ipedrosa@redhat.com>
Date: Fri, 27 Mar 2020 14:23:02 +0100
Subject: [PATCH 1/2] usermod: check only local groups with -G option
Check only local groups when adding new supplementary groups to a user
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1727236
---
src/usermod.c | 220 ++++++++++++++++++++++++++++++++------------------
1 file changed, 143 insertions(+), 77 deletions(-)
diff --git a/src/usermod.c b/src/usermod.c
index 05b98715..ef430296 100644
--- a/src/usermod.c
+++ b/src/usermod.c
@@ -183,6 +183,7 @@ static bool sub_gid_locked = false;
static void date_to_str (/*@unique@*//*@out@*/char *buf, size_t maxsize,
long int date);
static int get_groups (char *);
+static struct group * get_local_group (char * grp_name);
static /*@noreturn@*/void usage (int status);
static void new_pwent (struct passwd *);
static void new_spent (struct spwd *);
@@ -196,7 +197,9 @@ static void grp_update (void);
static void process_flags (int, char **);
static void close_files (void);
+static void close_group_files (void);
static void open_files (void);
+static void open_group_files (void);
static void usr_update (void);
static void move_home (void);
static void update_lastlog (void);
@@ -253,6 +256,11 @@ static int get_groups (char *list)
return 0;
}
+ /*
+ * Open the group files
+ */
+ open_group_files ();
+
/*
* So long as there is some data to be converted, strip off each
* name and look it up. A mix of numerical and string values for
@@ -272,7 +280,7 @@ static int get_groups (char *list)
* Names starting with digits are treated as numerical GID
* values, otherwise the string is looked up as is.
*/
- grp = prefix_getgr_nam_gid (list);
+ grp = get_local_group (list);
/*
* There must be a match, either by GID value or by
@@ -322,6 +330,8 @@ static int get_groups (char *list)
gr_free ((struct group *)grp);
} while (NULL != list);
+ close_group_files ();
+
user_groups[ngroups] = (char *) 0;
/*
@@ -334,6 +344,44 @@ static int get_groups (char *list)
return 0;
}
+/*
+ * get_local_group - checks if a given group name exists locally
+ *
+ * get_local_group() checks if a given group name exists locally.
+ * If the name exists the group information is returned, otherwise NULL is
+ * returned.
+ */
+static struct group * get_local_group(char * grp_name)
+{
+ const struct group *grp;
+ struct group *result_grp = NULL;
+ long long int gid;
+ char *endptr;
+
+ gid = strtoll (grp_name, &endptr, 10);
+ if ( ('\0' != *grp_name)
+ && ('\0' == *endptr)
+ && (ERANGE != errno)
+ && (gid == (gid_t)gid)) {
+ grp = gr_locate_gid ((gid_t) gid);
+ }
+ else {
+ grp = gr_locate(grp_name);
+ }
+
+ if (grp != NULL) {
+ result_grp = __gr_dup (grp);
+ if (NULL == result_grp) {
+ fprintf (stderr,
+ _("%s: Out of memory. Cannot find group '%s'.\n"),
+ Prog, grp_name);
+ fail_exit (E_GRP_UPDATE);
+ }
+ }
+
+ return result_grp;
+}
+
#ifdef ENABLE_SUBIDS
struct ulong_range
{
@@ -1447,50 +1495,7 @@ static void close_files (void)
}
if (Gflg || lflg) {
- if (gr_close () == 0) {
- fprintf (stderr,
- _("%s: failure while writing changes to %s\n"),
- Prog, gr_dbname ());
- SYSLOG ((LOG_ERR,
- "failure while writing changes to %s",
- gr_dbname ()));
- fail_exit (E_GRP_UPDATE);
- }
-#ifdef SHADOWGRP
- if (is_shadow_grp) {
- if (sgr_close () == 0) {
- fprintf (stderr,
- _("%s: failure while writing changes to %s\n"),
- Prog, sgr_dbname ());
- SYSLOG ((LOG_ERR,
- "failure while writing changes to %s",
- sgr_dbname ()));
- fail_exit (E_GRP_UPDATE);
- }
- }
-#endif
-#ifdef SHADOWGRP
- if (is_shadow_grp) {
- if (sgr_unlock () == 0) {
- fprintf (stderr,
- _("%s: failed to unlock %s\n"),
- Prog, sgr_dbname ());
- SYSLOG ((LOG_ERR,
- "failed to unlock %s",
- sgr_dbname ()));
- /* continue */
- }
- }
-#endif
- if (gr_unlock () == 0) {
- fprintf (stderr,
- _("%s: failed to unlock %s\n"),
- Prog, gr_dbname ());
- SYSLOG ((LOG_ERR,
- "failed to unlock %s",
- gr_dbname ()));
- /* continue */
- }
+ close_group_files ();
}
if (is_shadow_pwd) {
@@ -1559,6 +1564,60 @@ static void close_files (void)
#endif
}
+/*
+ * close_group_files - close all of the files that were opened
+ *
+ * close_group_files() closes all of the files that were opened related
+ * with groups. This causes any modified entries to be written out.
+ */
+static void close_group_files (void)
+{
+ if (gr_close () == 0) {
+ fprintf (stderr,
+ _("%s: failure while writing changes to %s\n"),
+ Prog, gr_dbname ());
+ SYSLOG ((LOG_ERR,
+ "failure while writing changes to %s",
+ gr_dbname ()));
+ fail_exit (E_GRP_UPDATE);
+ }
+#ifdef SHADOWGRP
+ if (is_shadow_grp) {
+ if (sgr_close () == 0) {
+ fprintf (stderr,
+ _("%s: failure while writing changes to %s\n"),
+ Prog, sgr_dbname ());
+ SYSLOG ((LOG_ERR,
+ "failure while writing changes to %s",
+ sgr_dbname ()));
+ fail_exit (E_GRP_UPDATE);
+ }
+ }
+#endif
+#ifdef SHADOWGRP
+ if (is_shadow_grp) {
+ if (sgr_unlock () == 0) {
+ fprintf (stderr,
+ _("%s: failed to unlock %s\n"),
+ Prog, sgr_dbname ());
+ SYSLOG ((LOG_ERR,
+ "failed to unlock %s",
+ sgr_dbname ()));
+ /* continue */
+ }
+ }
+#endif
+ if (gr_unlock () == 0) {
+ fprintf (stderr,
+ _("%s: failed to unlock %s\n"),
+ Prog, gr_dbname ());
+ SYSLOG ((LOG_ERR,
+ "failed to unlock %s",
+ gr_dbname ()));
+ /* continue */
+ }
+}
+
/*
* open_files - lock and open the password files
*
@@ -1594,38 +1653,7 @@ static void open_files (void)
}
if (Gflg || lflg) {
- /*
- * Lock and open the group file. This will load all of the
- * group entries.
- */
- if (gr_lock () == 0) {
- fprintf (stderr,
- _("%s: cannot lock %s; try again later.\n"),
- Prog, gr_dbname ());
- fail_exit (E_GRP_UPDATE);
- }
- gr_locked = true;
- if (gr_open (O_CREAT | O_RDWR) == 0) {
- fprintf (stderr,
- _("%s: cannot open %s\n"),
- Prog, gr_dbname ());
- fail_exit (E_GRP_UPDATE);
- }
-#ifdef SHADOWGRP
- if (is_shadow_grp && (sgr_lock () == 0)) {
- fprintf (stderr,
- _("%s: cannot lock %s; try again later.\n"),
- Prog, sgr_dbname ());
- fail_exit (E_GRP_UPDATE);
- }
- sgr_locked = true;
- if (is_shadow_grp && (sgr_open (O_CREAT | O_RDWR) == 0)) {
- fprintf (stderr,
- _("%s: cannot open %s\n"),
- Prog, sgr_dbname ());
- fail_exit (E_GRP_UPDATE);
- }
-#endif
+ open_group_files ();
}
#ifdef ENABLE_SUBIDS
if (vflg || Vflg) {
@@ -1661,6 +1689,44 @@ static void open_files (void)
#endif /* ENABLE_SUBIDS */
}
+/*
+ * open_group_files - lock and open the group files
+ *
+ * open_group_files() loads all of the group entries.
+ */
+static void open_group_files (void)
+{
+ if (gr_lock () == 0) {
+ fprintf (stderr,
+ _("%s: cannot lock %s; try again later.\n"),
+ Prog, gr_dbname ());
+ fail_exit (E_GRP_UPDATE);
+ }
+ gr_locked = true;
+ if (gr_open (O_CREAT | O_RDWR) == 0) {
+ fprintf (stderr,
+ _("%s: cannot open %s\n"),
+ Prog, gr_dbname ());
+ fail_exit (E_GRP_UPDATE);
+ }
+
+#ifdef SHADOWGRP
+ if (is_shadow_grp && (sgr_lock () == 0)) {
+ fprintf (stderr,
+ _("%s: cannot lock %s; try again later.\n"),
+ Prog, sgr_dbname ());
+ fail_exit (E_GRP_UPDATE);
+ }
+ sgr_locked = true;
+ if (is_shadow_grp && (sgr_open (O_CREAT | O_RDWR) == 0)) {
+ fprintf (stderr,
+ _("%s: cannot open %s\n"),
+ Prog, sgr_dbname ());
+ fail_exit (E_GRP_UPDATE);
+ }
+#endif
+}
+
/*
* usr_update - create the user entries
*
--
2.25.4
From 8762f465d487a52bf68f9c0b7c3c1eb3caea7bc9 Mon Sep 17 00:00:00 2001
From: ikerexxe <ipedrosa@redhat.com>
Date: Mon, 30 Mar 2020 09:08:23 +0200
Subject: [PATCH 2/2] useradd: check only local groups with -G option
Check only local groups when adding new supplementary groups to a user
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1727236
---
src/useradd.c | 234 +++++++++++++++++++++++++++++++++-----------------
1 file changed, 157 insertions(+), 77 deletions(-)
diff --git a/src/useradd.c b/src/useradd.c
index 645d4a40..90210233 100644
--- a/src/useradd.c
+++ b/src/useradd.c
@@ -211,6 +211,7 @@ static void get_defaults (void);
static void show_defaults (void);
static int set_defaults (void);
static int get_groups (char *);
+static struct group * get_local_group (char * grp_name);
static void usage (int status);
static void new_pwent (struct passwd *);
@@ -220,7 +221,10 @@ static void grp_update (void);
static void process_flags (int argc, char **argv);
static void close_files (void);
+static void close_group_files (void);
+static void unlock_group_files (void);
static void open_files (void);
+static void open_group_files (void);
static void open_shadow (void);
static void faillog_reset (uid_t);
static void lastlog_reset (uid_t);
@@ -731,6 +735,11 @@ static int get_groups (char *list)
return 0;
}
+ /*
+ * Open the group files
+ */
+ open_group_files ();
+
/*
* So long as there is some data to be converted, strip off
* each name and look it up. A mix of numerical and string
@@ -749,7 +758,7 @@ static int get_groups (char *list)
* Names starting with digits are treated as numerical
* GID values, otherwise the string is looked up as is.
*/
- grp = prefix_getgr_nam_gid (list);
+ grp = get_local_group (list);
/*
* There must be a match, either by GID value or by
@@ -799,6 +808,9 @@ static int get_groups (char *list)
user_groups[ngroups++] = xstrdup (grp->gr_name);
} while (NULL != list);
+ close_group_files ();
+ unlock_group_files ();
+
user_groups[ngroups] = (char *) 0;
/*
@@ -811,6 +823,44 @@ static int get_groups (char *list)
return 0;
}
+/*
+ * get_local_group - checks if a given group name exists locally
+ *
+ * get_local_group() checks if a given group name exists locally.
+ * If the name exists the group information is returned, otherwise NULL is
+ * returned.
+ */
+static struct group * get_local_group(char * grp_name)
+{
+ const struct group *grp;
+ struct group *result_grp = NULL;
+ long long int gid;
+ char *endptr;
+
+ gid = strtoll (grp_name, &endptr, 10);
+ if ( ('\0' != *grp_name)
+ && ('\0' == *endptr)
+ && (ERANGE != errno)
+ && (gid == (gid_t)gid)) {
+ grp = gr_locate_gid ((gid_t) gid);
+ }
+ else {
+ grp = gr_locate(grp_name);
+ }
+
+ if (grp != NULL) {
+ result_grp = __gr_dup (grp);
+ if (NULL == result_grp) {
+ fprintf (stderr,
+ _("%s: Out of memory. Cannot find group '%s'.\n"),
+ Prog, grp_name);
+ fail_exit (E_GRP_UPDATE);
+ }
+ }
+
+ return result_grp;
+}
+
/*
* usage - display usage message and exit
*/
@@ -1530,23 +1580,9 @@ static void close_files (void)
SYSLOG ((LOG_ERR, "failure while writing changes to %s", spw_dbname ()));
fail_exit (E_PW_UPDATE);
}
- if (do_grp_update) {
- if (gr_close () == 0) {
- fprintf (stderr,
- _("%s: failure while writing changes to %s\n"), Prog, gr_dbname ());
- SYSLOG ((LOG_ERR, "failure while writing changes to %s", gr_dbname ()));
- fail_exit (E_GRP_UPDATE);
- }
-#ifdef SHADOWGRP
- if (is_shadow_grp && (sgr_close () == 0)) {
- fprintf (stderr,
- _("%s: failure while writing changes to %s\n"),
- Prog, sgr_dbname ());
- SYSLOG ((LOG_ERR, "failure while writing changes to %s", sgr_dbname ()));
- fail_exit (E_GRP_UPDATE);
- }
-#endif
- }
+
+ close_group_files ();
+
#ifdef ENABLE_SUBIDS
if (is_sub_uid && (sub_uid_close () == 0)) {
fprintf (stderr,
@@ -1587,34 +1623,9 @@ static void close_files (void)
/* continue */
}
pw_locked = false;
- if (gr_unlock () == 0) {
- fprintf (stderr, _("%s: failed to unlock %s\n"), Prog, gr_dbname ());
- SYSLOG ((LOG_ERR, "failed to unlock %s", gr_dbname ()));
-#ifdef WITH_AUDIT
- audit_logger (AUDIT_ADD_USER, Prog,
- "unlocking-group-file",
- user_name, AUDIT_NO_ID,
- SHADOW_AUDIT_FAILURE);
-#endif
- /* continue */
- }
- gr_locked = false;
-#ifdef SHADOWGRP
- if (is_shadow_grp) {
- if (sgr_unlock () == 0) {
- fprintf (stderr, _("%s: failed to unlock %s\n"), Prog, sgr_dbname ());
- SYSLOG ((LOG_ERR, "failed to unlock %s", sgr_dbname ()));
-#ifdef WITH_AUDIT
- audit_logger (AUDIT_ADD_USER, Prog,
- "unlocking-gshadow-file",
- user_name, AUDIT_NO_ID,
- SHADOW_AUDIT_FAILURE);
-#endif
- /* continue */
- }
- sgr_locked = false;
- }
-#endif
+
+ unlock_group_files ();
+
#ifdef ENABLE_SUBIDS
if (is_sub_uid) {
if (sub_uid_unlock () == 0) {
@@ -1647,6 +1658,71 @@ static void close_files (void)
#endif /* ENABLE_SUBIDS */
}
+/*
+ * close_group_files - close all of the files that were opened
+ *
+ * close_group_files() closes all of the files that were opened related
+ * with groups. This causes any modified entries to be written out.
+ */
+static void close_group_files (void)
+{
+ if (do_grp_update) {
+ if (gr_close () == 0) {
+ fprintf (stderr,
+ _("%s: failure while writing changes to %s\n"), Prog, gr_dbname ());
+ SYSLOG ((LOG_ERR, "failure while writing changes to %s", gr_dbname ()));
+ fail_exit (E_GRP_UPDATE);
+ }
+#ifdef SHADOWGRP
+ if (is_shadow_grp && (sgr_close () == 0)) {
+ fprintf (stderr,
+ _("%s: failure while writing changes to %s\n"),
+ Prog, sgr_dbname ());
+ SYSLOG ((LOG_ERR, "failure while writing changes to %s", sgr_dbname ()));
+ fail_exit (E_GRP_UPDATE);
+ }
+#endif /* SHADOWGRP */
+ }
+}
+
+/*
+ * unlock_group_files - unlock all of the files that were locked
+ *
+ * unlock_group_files() unlocks all of the files that were locked related
+ * with groups. This causes any modified entries to be written out.
+ */
+static void unlock_group_files (void)
+{
+ if (gr_unlock () == 0) {
+ fprintf (stderr, _("%s: failed to unlock %s\n"), Prog, gr_dbname ());
+ SYSLOG ((LOG_ERR, "failed to unlock %s", gr_dbname ()));
+#ifdef WITH_AUDIT
+ audit_logger (AUDIT_ADD_USER, Prog,
+ "unlocking-group-file",
+ user_name, AUDIT_NO_ID,
+ SHADOW_AUDIT_FAILURE);
+#endif /* WITH_AUDIT */
+ /* continue */
+ }
+ gr_locked = false;
+#ifdef SHADOWGRP
+ if (is_shadow_grp) {
+ if (sgr_unlock () == 0) {
+ fprintf (stderr, _("%s: failed to unlock %s\n"), Prog, sgr_dbname ());
+ SYSLOG ((LOG_ERR, "failed to unlock %s", sgr_dbname ()));
+#ifdef WITH_AUDIT
+ audit_logger (AUDIT_ADD_USER, Prog,
+ "unlocking-gshadow-file",
+ user_name, AUDIT_NO_ID,
+ SHADOW_AUDIT_FAILURE);
+#endif /* WITH_AUDIT */
+ /* continue */
+ }
+ sgr_locked = false;
+ }
+#endif /* SHADOWGRP */
+}
+
/*
* open_files - lock and open the password files
*
@@ -1668,37 +1744,8 @@ static void open_files (void)
/* shadow file will be opened by open_shadow(); */
- /*
- * Lock and open the group file.
- */
- if (gr_lock () == 0) {
- fprintf (stderr,
- _("%s: cannot lock %s; try again later.\n"),
- Prog, gr_dbname ());
- fail_exit (E_GRP_UPDATE);
- }
- gr_locked = true;
- if (gr_open (O_CREAT | O_RDWR) == 0) {
- fprintf (stderr, _("%s: cannot open %s\n"), Prog, gr_dbname ());
- fail_exit (E_GRP_UPDATE);
- }
-#ifdef SHADOWGRP
- if (is_shadow_grp) {
- if (sgr_lock () == 0) {
- fprintf (stderr,
- _("%s: cannot lock %s; try again later.\n"),
- Prog, sgr_dbname ());
- fail_exit (E_GRP_UPDATE);
- }
- sgr_locked = true;
- if (sgr_open (O_CREAT | O_RDWR) == 0) {
- fprintf (stderr,
- _("%s: cannot open %s\n"),
- Prog, sgr_dbname ());
- fail_exit (E_GRP_UPDATE);
- }
- }
-#endif
+ open_group_files ();
+
#ifdef ENABLE_SUBIDS
if (is_sub_uid) {
if (sub_uid_lock () == 0) {
@@ -1733,6 +1780,39 @@ static void open_files (void)
#endif /* ENABLE_SUBIDS */
}
+static void open_group_files (void)
+{
+ if (gr_lock () == 0) {
+ fprintf (stderr,
+ _("%s: cannot lock %s; try again later.\n"),
+ Prog, gr_dbname ());
+ fail_exit (E_GRP_UPDATE);
+ }
+ gr_locked = true;
+ if (gr_open (O_CREAT | O_RDWR) == 0) {
+ fprintf (stderr, _("%s: cannot open %s\n"), Prog, gr_dbname ());
+ fail_exit (E_GRP_UPDATE);
+ }
+
+#ifdef SHADOWGRP
+ if (is_shadow_grp) {
+ if (sgr_lock () == 0) {
+ fprintf (stderr,
+ _("%s: cannot lock %s; try again later.\n"),
+ Prog, sgr_dbname ());
+ fail_exit (E_GRP_UPDATE);
+ }
+ sgr_locked = true;
+ if (sgr_open (O_CREAT | O_RDWR) == 0) {
+ fprintf (stderr,
+ _("%s: cannot open %s\n"),
+ Prog, sgr_dbname ());
+ fail_exit (E_GRP_UPDATE);
+ }
+ }
+#endif /* SHADOWGRP */
+}
+
static void open_shadow (void)
{
if (!is_shadow_pwd) {
--
2.25.4

44
SOURCES/shadow-4.6-chgrp-guard.patch Normal file
View File

@ -0,0 +1,44 @@
diff -up shadow-4.6/man/usermod.8.xml.chgrp-guard shadow-4.6/man/usermod.8.xml
--- shadow-4.6/man/usermod.8.xml.chgrp-guard 2018-11-06 09:08:54.170095358 +0100
+++ shadow-4.6/man/usermod.8.xml 2018-12-18 15:24:12.283181180 +0100
@@ -195,6 +195,12 @@
The group ownership of files outside of the user's home directory
must be fixed manually.
</para>
+ <para>
+ The change of the group ownership of files inside of the user's
+ home directory is also not done if the home dir owner uid is
+ different from the current or new user id. This is safety measure
+ for special home directories such as <filename>/</filename>.
+ </para>
</listitem>
</varlistentry>
<varlistentry>
@@ -372,6 +378,12 @@
must be fixed manually.
</para>
<para>
+ The change of the user ownership of files inside of the user's
+ home directory is also not done if the home dir owner uid is
+ different from the current or new user id. This is safety measure
+ for special home directories such as <filename>/</filename>.
+ </para>
+ <para>
No checks will be performed with regard to the
<option>UID_MIN</option>, <option>UID_MAX</option>,
<option>SYS_UID_MIN</option>, or <option>SYS_UID_MAX</option>
diff -up shadow-4.6/src/usermod.c.chgrp-guard shadow-4.6/src/usermod.c
--- shadow-4.6/src/usermod.c.chgrp-guard 2018-12-18 15:24:12.286181249 +0100
+++ shadow-4.6/src/usermod.c 2018-12-18 15:26:51.227841435 +0100
@@ -2336,7 +2336,10 @@ int main (int argc, char **argv)
}
if (!mflg && (uflg || gflg)) {
- if (access (dflg ? prefix_user_newhome : prefix_user_home, F_OK) == 0) {
+ struct stat sb;
+
+ if (stat (dflg ? prefix_user_newhome : prefix_user_home, &sb) == 0 &&
+ ((uflg && sb.st_uid == user_newid) || sb.st_uid == user_id)) {
/*
* Change the UID on all of the files owned by
* `user_id' to `user_newid' in the user's home

223
SOURCES/shadow-4.6-coverity.patch Normal file
View File

@ -0,0 +1,223 @@
diff -up shadow-4.6/lib/commonio.c.coverity shadow-4.6/lib/commonio.c
--- shadow-4.6/lib/commonio.c.coverity 2018-10-10 09:50:59.307738194 +0200
+++ shadow-4.6/lib/commonio.c 2018-10-10 09:55:32.919319048 +0200
@@ -382,7 +382,7 @@ int commonio_lock_nowait (struct commoni
char* lock = NULL;
size_t lock_file_len;
size_t file_len;
- int err;
+ int err = 0;
if (db->locked) {
return 1;
@@ -391,12 +391,10 @@ int commonio_lock_nowait (struct commoni
lock_file_len = strlen(db->filename) + 6; /* sizeof ".lock" */
file = (char*)malloc(file_len);
if(file == NULL) {
- err = ENOMEM;
goto cleanup_ENOMEM;
}
lock = (char*)malloc(lock_file_len);
if(lock == NULL) {
- err = ENOMEM;
goto cleanup_ENOMEM;
}
snprintf (file, file_len, "%s.%lu",
diff -up shadow-4.6/libmisc/console.c.coverity shadow-4.6/libmisc/console.c
--- shadow-4.6/libmisc/console.c.coverity 2018-04-29 18:42:37.000000000 +0200
+++ shadow-4.6/libmisc/console.c 2018-10-10 11:56:51.368837533 +0200
@@ -50,7 +50,7 @@ static bool is_listed (const char *cfgin
static bool is_listed (const char *cfgin, const char *tty, bool def)
{
FILE *fp;
- char buf[200], *s;
+ char buf[1024], *s;
const char *cons;
/*
@@ -70,7 +70,8 @@ static bool is_listed (const char *cfgin
if (*cons != '/') {
char *pbuf;
- strcpy (buf, cons);
+ strncpy (buf, cons, sizeof (buf));
+ buf[sizeof (buf) - 1] = '\0';
pbuf = &buf[0];
while ((s = strtok (pbuf, ":")) != NULL) {
if (strcmp (s, tty) == 0) {
diff -up shadow-4.6/lib/spawn.c.coverity shadow-4.6/lib/spawn.c
--- shadow-4.6/lib/spawn.c.coverity 2018-04-29 18:42:37.000000001 +0200
+++ shadow-4.6/lib/spawn.c 2018-10-10 11:36:49.035784609 +0200
@@ -69,7 +69,7 @@ int run_command (const char *cmd, const
do {
wpid = waitpid (pid, status, 0);
} while ( ((pid_t)-1 == wpid && errno == EINTR)
- || (wpid != pid));
+ || ((pid_t)-1 != wpid && wpid != pid));
if ((pid_t)-1 == wpid) {
fprintf (stderr, "%s: waitpid (status: %d): %s\n",
diff -up shadow-4.6/src/useradd.c.coverity shadow-4.6/src/useradd.c
--- shadow-4.6/src/useradd.c.coverity 2018-10-10 09:50:59.303738098 +0200
+++ shadow-4.6/src/useradd.c 2018-10-12 13:51:54.480490257 +0200
@@ -314,7 +314,7 @@ static void fail_exit (int code)
static void get_defaults (void)
{
FILE *fp;
- char* default_file = USER_DEFAULTS_FILE;
+ char *default_file = USER_DEFAULTS_FILE;
char buf[1024];
char *cp;
@@ -324,6 +324,8 @@ static void get_defaults (void)
len = strlen(prefix) + strlen(USER_DEFAULTS_FILE) + 2;
default_file = malloc(len);
+ if (default_file == NULL)
+ return;
wlen = snprintf(default_file, len, "%s/%s", prefix, USER_DEFAULTS_FILE);
assert (wlen == (int) len -1);
}
@@ -334,7 +336,7 @@ static void get_defaults (void)
fp = fopen (default_file, "r");
if (NULL == fp) {
- return;
+ goto getdef_err;
}
/*
@@ -445,7 +447,7 @@ static void get_defaults (void)
}
}
(void) fclose (fp);
-
+ getdef_err:
if(prefix[0]) {
free(default_file);
}
@@ -480,8 +482,8 @@ static int set_defaults (void)
FILE *ifp;
FILE *ofp;
char buf[1024];
- char* new_file = NEW_USER_FILE;
- char* default_file = USER_DEFAULTS_FILE;
+ char *new_file = NULL;
+ char *default_file = USER_DEFAULTS_FILE;
char *cp;
int ofd;
int wlen;
@@ -492,17 +494,30 @@ static int set_defaults (void)
bool out_shell = false;
bool out_skel = false;
bool out_create_mail_spool = false;
+ size_t len;
+ int ret = -1;
- if(prefix[0]) {
- size_t len;
- len = strlen(prefix) + strlen(NEW_USER_FILE) + 2;
- new_file = malloc(len);
- wlen = snprintf(new_file, len, "%s/%s", prefix, NEW_USER_FILE);
- assert (wlen == (int) len -1);
+ len = strlen(prefix) + strlen(NEW_USER_FILE) + 2;
+ new_file = malloc(len);
+ if (new_file == NULL) {
+ fprintf (stderr,
+ _("%s: cannot create new defaults file: %s\n"),
+ Prog, strerror(errno));
+ return -1;
+ }
+ wlen = snprintf(new_file, len, "%s%s%s", prefix, prefix[0]?"/":"", NEW_USER_FILE);
+ assert (wlen <= (int) len -1);
+ if(prefix[0]) {
len = strlen(prefix) + strlen(USER_DEFAULTS_FILE) + 2;
default_file = malloc(len);
+ if (default_file == NULL) {
+ fprintf (stderr,
+ _("%s: cannot create new defaults file: %s\n"),
+ Prog, strerror(errno));
+ goto setdef_err;
+ }
wlen = snprintf(default_file, len, "%s/%s", prefix, USER_DEFAULTS_FILE);
assert (wlen == (int) len -1);
}
@@ -515,7 +530,7 @@ static int set_defaults (void)
fprintf (stderr,
_("%s: cannot create new defaults file\n"),
Prog);
- return -1;
+ goto setdef_err;
}
ofp = fdopen (ofd, "w");
@@ -523,7 +538,7 @@ static int set_defaults (void)
fprintf (stderr,
_("%s: cannot open new defaults file\n"),
Prog);
- return -1;
+ goto setdef_err;
}
/*
@@ -550,7 +565,7 @@ static int set_defaults (void)
_("%s: line too long in %s: %s..."),
Prog, default_file, buf);
(void) fclose (ifp);
- return -1;
+ goto setdef_err;
}
}
@@ -614,7 +629,7 @@ static int set_defaults (void)
|| (fsync (fileno (ofp)) != 0)
|| (fclose (ofp) != 0)) {
unlink (new_file);
- return -1;
+ goto setdef_err;
}
/*
@@ -629,7 +644,7 @@ static int set_defaults (void)
_("%s: Cannot create backup file (%s): %s\n"),
Prog, buf, strerror (err));
unlink (new_file);
- return -1;
+ goto setdef_err;
}
/*
@@ -640,11 +655,11 @@ static int set_defaults (void)
fprintf (stderr,
_("%s: rename: %s: %s\n"),
Prog, new_file, strerror (err));
- return -1;
+ goto setdef_err;
}
#ifdef WITH_AUDIT
audit_logger (AUDIT_USYS_CONFIG, Prog,
- "changing-useradd-defaults",
+ "changing useradd defaults",
NULL, AUDIT_NO_ID,
SHADOW_AUDIT_SUCCESS);
#endif
@@ -654,13 +669,14 @@ static int set_defaults (void)
(unsigned int) def_group, def_home, def_shell,
def_inactive, def_expire, def_template,
def_create_mail_spool));
-
+ ret = 0;
+ setdef_err:
+ free(new_file);
if(prefix[0]) {
- free(new_file);
free(default_file);
}
- return 0;
+ return ret;
}
/*

21
SOURCES/shadow-4.6-getenforce.patch Normal file
View File

@ -0,0 +1,21 @@
diff -up shadow-4.6/lib/selinux.c.getenforce shadow-4.6/lib/selinux.c
--- shadow-4.6/lib/selinux.c.getenforce 2018-05-28 15:10:15.870315221 +0200
+++ shadow-4.6/lib/selinux.c 2018-05-28 15:10:15.894315731 +0200
@@ -75,7 +75,7 @@ int set_selinux_file_context (const char
}
return 0;
error:
- if (security_getenforce () != 0) {
+ if (security_getenforce () > 0) {
return 1;
}
return 0;
@@ -95,7 +95,7 @@ int reset_selinux_file_context (void)
selinux_checked = true;
}
if (selinux_enabled) {
- if (setfscreatecon (NULL) != 0) {
+ if (setfscreatecon (NULL) != 0 && security_getenforce () > 0) {
return 1;
}
}

201
SOURCES/shadow-4.6-home_mode-directive.patch Normal file
View File

@ -0,0 +1,201 @@
From a847899b521b0df0665e442845bcff23407d9ea0 Mon Sep 17 00:00:00 2001
From: Duncan Overbruck <mail@duncano.de>
Date: Sat, 11 Jan 2020 22:19:37 +0100
Subject: [PATCH] add new HOME_MODE login.defs(5) option
This option can be used to set a separate mode for useradd(8) and
newusers(8) to create the home directories with.
If this option is not set, the current behavior of using UMASK
or the default umask is preserved.
There are many distributions that set UMASK to 077 by default just
to create home directories not readable by others and use things like
/etc/profile, bashrc or sudo configuration files to set a less
restrictive
umask. This has always resulted in bug reports because it is hard
to follow as users tend to change files like bashrc and are not about
setting the umask to counteract the umask set in /etc/login.defs.
A recent change in sudo has also resulted in many bug reports about
this. sudo now tries to respect the umask set by pam modules and on
systems where pam does not set a umask, the login.defs UMASK value is
used.
---
etc/login.defs | 7 ++++++-
lib/getdef.c | 1 +
man/login.defs.5.xml | 4 ++++
man/login.defs.d/UMASK.xml | 3 ++-
src/newusers.c | 6 +++---
src/useradd.c | 5 +++--
6 files changed, 19 insertions(+), 7 deletions(-)
diff --git a/etc/login.defs b/etc/login.defs
index cd2597dc..a2f8cd50 100644
--- a/etc/login.defs
+++ b/etc/login.defs
@@ -195,12 +195,17 @@ KILLCHAR 025
# Default initial "umask" value used by login(1) on non-PAM enabled systems.
# Default "umask" value for pam_umask(8) on PAM enabled systems.
# UMASK is also used by useradd(8) and newusers(8) to set the mode for new
-# home directories.
+# home directories if HOME_MODE is not set.
# 022 is the default value, but 027, or even 077, could be considered
# for increased privacy. There is no One True Answer here: each sysadmin
# must make up their mind.
UMASK 022
+# HOME_MODE is used by useradd(8) and newusers(8) to set the mode for new
+# home directories.
+# If HOME_MODE is not set, the value of UMASK is used to create the mode.
+HOME_MODE 0700
+
#
# Password aging controls:
#
diff --git a/lib/getdef.c b/lib/getdef.c
index bbb273f4..00f6abfe 100644
--- a/lib/getdef.c
+++ b/lib/getdef.c
@@ -93,6 +93,7 @@ static struct itemdef def_table[] = {
{"FAKE_SHELL", NULL},
{"GID_MAX", NULL},
{"GID_MIN", NULL},
+ {"HOME_MODE", NULL},
{"HUSHLOGIN_FILE", NULL},
{"KILLCHAR", NULL},
{"LOGIN_RETRIES", NULL},
diff --git a/man/login.defs.5.xml b/man/login.defs.5.xml
index ebf60ba3..9e95da20 100644
--- a/man/login.defs.5.xml
+++ b/man/login.defs.5.xml
@@ -50,6 +50,7 @@
<!ENTITY FAKE_SHELL SYSTEM "login.defs.d/FAKE_SHELL.xml">
<!ENTITY FTMP_FILE SYSTEM "login.defs.d/FTMP_FILE.xml">
<!ENTITY GID_MAX SYSTEM "login.defs.d/GID_MAX.xml">
+<!ENTITY HOME_MODE SYSTEM "login.defs.d/HOME_MODE.xml">
<!ENTITY HUSHLOGIN_FILE SYSTEM "login.defs.d/HUSHLOGIN_FILE.xml">
<!ENTITY ISSUE_FILE SYSTEM "login.defs.d/ISSUE_FILE.xml">
<!ENTITY KILLCHAR SYSTEM "login.defs.d/KILLCHAR.xml">
@@ -185,6 +186,7 @@
&FAKE_SHELL;
&FTMP_FILE;
&GID_MAX; <!-- documents also GID_MIN -->
+ &HOME_MODE;
&HUSHLOGIN_FILE;
&ISSUE_FILE;
&KILLCHAR;
@@ -401,6 +403,7 @@
ENCRYPT_METHOD
GID_MAX GID_MIN
MAX_MEMBERS_PER_GROUP MD5_CRYPT_ENAB
+ HOME_MODE
PASS_MAX_DAYS PASS_MIN_DAYS PASS_WARN_AGE
<phrase condition="sha_crypt">SHA_CRYPT_MAX_ROUNDS
SHA_CRYPT_MIN_ROUNDS</phrase>
@@ -481,6 +484,7 @@
<para>
CREATE_HOME
GID_MAX GID_MIN
+ HOME_MODE
MAIL_DIR MAX_MEMBERS_PER_GROUP
PASS_MAX_DAYS PASS_MIN_DAYS PASS_WARN_AGE
SUB_GID_COUNT SUB_GID_MAX SUB_GID_MIN
diff --git a/man/login.defs.d/HOME_MODE.xml b/man/login.defs.d/HOME_MODE.xml
new file mode 100644
index 00000000..21aa55f7
--- /dev/null
+++ b/man/login.defs.d/HOME_MODE.xml
@@ -0,0 +1,43 @@
+<!--
+ Copyright (c) 1991 - 1993, Julianne Frances Haugh
+ Copyright (c) 1991 - 1993, Chip Rosenthal
+ Copyright (c) 2007 - 2009, Nicolas François
+ All rights reserved.
+
+ Redistribution and use in source and binary forms, with or without
+ modification, are permitted provided that the following conditions
+ are met:
+ 1. Redistributions of source code must retain the above copyright
+ notice, this list of conditions and the following disclaimer.
+ 2. Redistributions in binary form must reproduce the above copyright
+ notice, this list of conditions and the following disclaimer in the
+ documentation and/or other materials provided with the distribution.
+ 3. The name of the copyright holders or contributors may not be used to
+ endorse or promote products derived from this software without
+ specific prior written permission.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+-->
+<varlistentry>
+ <term><option>HOME_MODE</option> (number)</term>
+ <listitem>
+ <para>
+ The mode for new home directories. If not specified,
+ the <option>UMASK</option> is used to create the mode.
+ </para>
+ <para>
+ <command>useradd</command> and <command>newusers</command> use this
+ to set the mode of the home directory they create.
+ </para>
+ </listitem>
+</varlistentry>
diff --git a/man/login.defs.d/UMASK.xml b/man/login.defs.d/UMASK.xml
index d7b71a5e..0f061dbb 100644
--- a/man/login.defs.d/UMASK.xml
+++ b/man/login.defs.d/UMASK.xml
@@ -37,7 +37,8 @@
</para>
<para>
<command>useradd</command> and <command>newusers</command> use this
- mask to set the mode of the home directory they create
+ mask to set the mode of the home directory they create if
+ <option>HOME_MODE</option> is not set.
</para>
<para condition="no_pam">
It is also used by <command>login</command> to define users' initial
diff --git a/src/newusers.c b/src/newusers.c
index 99c69f78..e9fe0e27 100644
--- a/src/newusers.c
+++ b/src/newusers.c
@@ -1216,9 +1216,9 @@ int main (int argc, char **argv)
if ( ('\0' != fields[5][0])
&& (access (newpw.pw_dir, F_OK) != 0)) {
/* FIXME: should check for directory */
- mode_t msk = 0777 & ~getdef_num ("UMASK",
- GETDEF_DEFAULT_UMASK);
- if (mkdir (newpw.pw_dir, msk) != 0) {
+ mode_t mode = getdef_num ("HOME_MODE",
+ 0777 & ~getdef_num ("UMASK", GETDEF_DEFAULT_UMASK));
+ if (mkdir (newpw.pw_dir, mode) != 0) {
fprintf (stderr,
_("%s: line %d: mkdir %s failed: %s\n"),
Prog, line, newpw.pw_dir,
diff --git a/src/useradd.c b/src/useradd.c
index 4af0f7c6..8b453e3c 100644
--- a/src/useradd.c
+++ b/src/useradd.c
@@ -2152,8 +2152,9 @@ static void create_home (void)
fail_exit (E_HOMEDIR);
}
(void) chown (prefix_user_home, user_id, user_gid);
- chmod (prefix_user_home,
- 0777 & ~getdef_num ("UMASK", GETDEF_DEFAULT_UMASK));
+ mode_t mode = getdef_num ("HOME_MODE",
+ 0777 & ~getdef_num ("UMASK", GETDEF_DEFAULT_UMASK));
+ chmod (prefix_user_home, mode);
home_added = true;
#ifdef WITH_AUDIT
audit_logger (AUDIT_USER_MGMT, Prog,
--
2.25.2

11
SOURCES/shadow-4.6-ignore-login-prompt.patch Normal file
View File

@ -0,0 +1,11 @@
diff -up shadow-4.6/lib/getdef.c.login-prompt shadow-4.6/lib/getdef.c
--- shadow-4.6/lib/getdef.c.login-prompt 2018-04-29 18:42:37.000000000 +0200
+++ shadow-4.6/lib/getdef.c 2019-03-21 15:06:58.009280504 +0100
@@ -94,6 +94,7 @@ static struct itemdef def_table[] = {
{"KILLCHAR", NULL},
{"LOGIN_RETRIES", NULL},
{"LOGIN_TIMEOUT", NULL},
+ {"LOGIN_PLAIN_PROMPT", NULL},
{"LOG_OK_LOGINS", NULL},
{"LOG_UNKFAIL_ENAB", NULL},
{"MAIL_DIR", NULL},

15
SOURCES/shadow-4.6-move-home.patch Normal file
View File

@ -0,0 +1,15 @@
diff -up shadow-4.6/src/usermod.c.move-home shadow-4.6/src/usermod.c
--- shadow-4.6/src/usermod.c.move-home 2018-05-28 14:59:05.594076665 +0200
+++ shadow-4.6/src/usermod.c 2018-05-28 15:00:28.479837392 +0200
@@ -1845,6 +1845,11 @@ static void move_home (void)
Prog, prefix_user_home, prefix_user_newhome);
fail_exit (E_HOMEDIR);
}
+ } else {
+ fprintf (stderr,
+ _("%s: The previous home directory (%s) does "
+ "not exist or is inaccessible. Move cannot be completed.\n"),
+ Prog, prefix_user_home);
}
}

128
SOURCES/shadow-4.6-orig-context.patch Normal file
View File

@ -0,0 +1,128 @@
diff -up shadow-4.6/lib/commonio.c.orig-context shadow-4.6/lib/commonio.c
--- shadow-4.6/lib/commonio.c.orig-context 2018-04-29 18:42:37.000000000 +0200
+++ shadow-4.6/lib/commonio.c 2018-05-28 14:56:37.287929667 +0200
@@ -961,7 +961,7 @@ int commonio_close (struct commonio_db *
snprintf (buf, sizeof buf, "%s-", db->filename);
#ifdef WITH_SELINUX
- if (set_selinux_file_context (buf) != 0) {
+ if (set_selinux_file_context (buf, db->filename) != 0) {
errors++;
}
#endif
@@ -994,7 +994,7 @@ int commonio_close (struct commonio_db *
snprintf (buf, sizeof buf, "%s+", db->filename);
#ifdef WITH_SELINUX
- if (set_selinux_file_context (buf) != 0) {
+ if (set_selinux_file_context (buf, db->filename) != 0) {
errors++;
}
#endif
diff -up shadow-4.6/libmisc/copydir.c.orig-context shadow-4.6/libmisc/copydir.c
--- shadow-4.6/libmisc/copydir.c.orig-context 2018-04-29 18:42:37.000000000 +0200
+++ shadow-4.6/libmisc/copydir.c 2018-05-28 14:56:37.287929667 +0200
@@ -484,7 +484,7 @@ static int copy_dir (const char *src, co
*/
#ifdef WITH_SELINUX
- if (set_selinux_file_context (dst) != 0) {
+ if (set_selinux_file_context (dst, NULL) != 0) {
return -1;
}
#endif /* WITH_SELINUX */
@@ -605,7 +605,7 @@ static int copy_symlink (const char *src
}
#ifdef WITH_SELINUX
- if (set_selinux_file_context (dst) != 0) {
+ if (set_selinux_file_context (dst, NULL) != 0) {
free (oldlink);
return -1;
}
@@ -684,7 +684,7 @@ static int copy_special (const char *src
int err = 0;
#ifdef WITH_SELINUX
- if (set_selinux_file_context (dst) != 0) {
+ if (set_selinux_file_context (dst, NULL) != 0) {
return -1;
}
#endif /* WITH_SELINUX */
@@ -744,7 +744,7 @@ static int copy_file (const char *src, c
return -1;
}
#ifdef WITH_SELINUX
- if (set_selinux_file_context (dst) != 0) {
+ if (set_selinux_file_context (dst, NULL) != 0) {
return -1;
}
#endif /* WITH_SELINUX */
diff -up shadow-4.6/lib/prototypes.h.orig-context shadow-4.6/lib/prototypes.h
--- shadow-4.6/lib/prototypes.h.orig-context 2018-04-29 18:42:37.000000000 +0200
+++ shadow-4.6/lib/prototypes.h 2018-05-28 14:56:37.287929667 +0200
@@ -326,7 +326,7 @@ extern /*@observer@*/const char *crypt_m
/* selinux.c */
#ifdef WITH_SELINUX
-extern int set_selinux_file_context (const char *dst_name);
+extern int set_selinux_file_context (const char *dst_name, const char *orig_name);
extern int reset_selinux_file_context (void);
#endif
diff -up shadow-4.6/lib/selinux.c.orig-context shadow-4.6/lib/selinux.c
--- shadow-4.6/lib/selinux.c.orig-context 2018-04-29 18:42:37.000000000 +0200
+++ shadow-4.6/lib/selinux.c 2018-05-28 14:56:37.287929667 +0200
@@ -50,7 +50,7 @@ static bool selinux_enabled;
* Callers may have to Reset SELinux to create files with default
* contexts with reset_selinux_file_context
*/
-int set_selinux_file_context (const char *dst_name)
+int set_selinux_file_context (const char *dst_name, const char *orig_name)
{
/*@null@*/security_context_t scontext = NULL;
@@ -62,19 +62,23 @@ int set_selinux_file_context (const char
if (selinux_enabled) {
/* Get the default security context for this file */
if (matchpathcon (dst_name, 0, &scontext) < 0) {
- if (security_getenforce () != 0) {
- return 1;
- }
+ /* We could not get the default, copy the original */
+ if (orig_name == NULL)
+ goto error;
+ if (getfilecon (orig_name, &scontext) < 0)
+ goto error;
}
/* Set the security context for the next created file */
- if (setfscreatecon (scontext) < 0) {
- if (security_getenforce () != 0) {
- return 1;
- }
- }
+ if (setfscreatecon (scontext) < 0)
+ goto error;
freecon (scontext);
}
return 0;
+ error:
+ if (security_getenforce () != 0) {
+ return 1;
+ }
+ return 0;
}
/*
diff -up shadow-4.6/src/useradd.c.orig-context shadow-4.6/src/useradd.c
--- shadow-4.6/src/useradd.c.orig-context 2018-05-28 14:56:37.288929688 +0200
+++ shadow-4.6/src/useradd.c 2018-05-28 14:58:02.242730903 +0200
@@ -2020,7 +2020,7 @@ static void create_home (void)
{
if (access (prefix_user_home, F_OK) != 0) {
#ifdef WITH_SELINUX
- if (set_selinux_file_context (prefix_user_home) != 0) {
+ if (set_selinux_file_context (prefix_user_home, NULL) != 0) {
fprintf (stderr,
_("%s: cannot set SELinux context for home directory %s\n"),
Prog, user_home);

41
SOURCES/shadow-4.6-redhat.patch Normal file
View File

@ -0,0 +1,41 @@
diff -up shadow-4.6/src/useradd.c.redhat shadow-4.6/src/useradd.c
--- shadow-4.6/src/useradd.c.redhat 2018-04-29 18:42:37.000000000 +0200
+++ shadow-4.6/src/useradd.c 2018-05-28 13:37:16.695651258 +0200
@@ -98,7 +98,7 @@ const char *Prog;
static gid_t def_group = 100;
static const char *def_gname = "other";
static const char *def_home = "/home";
-static const char *def_shell = "";
+static const char *def_shell = "/sbin/nologin";
static const char *def_template = SKEL_DIR;
static const char *def_create_mail_spool = "no";
@@ -108,7 +108,7 @@ static const char *def_expire = "";
#define VALID(s) (strcspn (s, ":\n") == strlen (s))
static const char *user_name = "";
-static const char *user_pass = "!";
+static const char *user_pass = "!!";
static uid_t user_id;
static gid_t user_gid;
static const char *user_comment = "";
@@ -1114,9 +1114,9 @@ static void process_flags (int argc, cha
};
while ((c = getopt_long (argc, argv,
#ifdef WITH_SELINUX
- "b:c:d:De:f:g:G:hk:K:lmMNop:rR:P:s:u:UZ:",
+ "b:c:d:De:f:g:G:hk:K:lmMnNop:rR:P:s:u:UZ:",
#else /* !WITH_SELINUX */
- "b:c:d:De:f:g:G:hk:K:lmMNop:rR:P:s:u:U",
+ "b:c:d:De:f:g:G:hk:K:lmMnNop:rR:P:s:u:U",
#endif /* !WITH_SELINUX */
long_options, NULL)) != -1) {
switch (c) {
@@ -1267,6 +1267,7 @@ static void process_flags (int argc, cha
case 'M':
Mflg = true;
break;
+ case 'n':
case 'N':
Nflg = true;
break;

108
SOURCES/shadow-4.6-regular-user.patch Normal file
View File

@ -0,0 +1,108 @@
From fd4405b763d26649339069532e79bd45013c8c38 Mon Sep 17 00:00:00 2001
From: Tomas Mraz <tmraz@fedoraproject.org>
Date: Mon, 20 Jan 2020 13:58:07 +0100
Subject: [PATCH] Do not mistake a regular user process for a namespaced one
In case there is a regular user with a process running on a system
with uid falling into a namespaced uid range of another user.
The user with the colliding namespaced uid range will not be
allowed to be deleted without forcing the action with -f.
The user_busy() is adjusted to check whether the suspected process
is really a namespaced process in a different namespace.
---
libmisc/user_busy.c | 44 ++++++++++++++++++++++++++++++++++++--------
1 file changed, 36 insertions(+), 8 deletions(-)
diff --git a/libmisc/user_busy.c b/libmisc/user_busy.c
index b0867568..324bb946 100644
--- a/libmisc/user_busy.c
+++ b/libmisc/user_busy.c
@@ -39,6 +39,7 @@
#include <sys/types.h>
#include <dirent.h>
#include <fcntl.h>
+#include <unistd.h>
#include "defines.h"
#include "prototypes.h"
#ifdef ENABLE_SUBIDS
@@ -106,6 +107,31 @@ static int user_busy_utmp (const char *name)
#endif /* !__linux__ */
#ifdef __linux__
+#ifdef ENABLE_SUBIDS
+#define in_parentuid_range(uid) ((uid) >= parentuid && (uid) < parentuid + range)
+static int different_namespace (const char *sname)
+{
+ /* 41: /proc/xxxxxxxxxx/task/xxxxxxxxxx/ns/user + \0 */
+ char path[41];
+ char buf[512], buf2[512];
+ ssize_t llen1, llen2;
+
+ snprintf (path, 41, "/proc/%s/ns/user", sname);
+
+ if ((llen1 = readlink (path, buf, sizeof(buf))) == -1)
+ return 0;
+
+ if ((llen2 = readlink ("/proc/self/ns/user", buf2, sizeof(buf2))) == -1)
+ return 0;
+
+ if (llen1 == llen2 && memcmp (buf, buf2, llen1) == 0)
+ return 0; /* same namespace */
+
+ return 1;
+}
+#endif /* ENABLE_SUBIDS */
+
+
static int check_status (const char *name, const char *sname, uid_t uid)
{
/* 40: /proc/xxxxxxxxxx/task/xxxxxxxxxx/status + \0 */
@@ -114,7 +140,6 @@ static int check_status (const char *name, const char *sname, uid_t uid)
FILE *sfile;
snprintf (status, 40, "/proc/%s/status", sname);
- status[39] = '\0';
sfile = fopen (status, "r");
if (NULL == sfile) {
@@ -123,26 +148,29 @@ static int check_status (const char *name, const char *sname, uid_t uid)
while (fgets (line, sizeof (line), sfile) == line) {
if (strncmp (line, "Uid:\t", 5) == 0) {
unsigned long ruid, euid, suid;
+
assert (uid == (unsigned long) uid);
+ (void) fclose (sfile);
if (sscanf (line,
"Uid:\t%lu\t%lu\t%lu\n",
&ruid, &euid, &suid) == 3) {
if ( (ruid == (unsigned long) uid)
|| (euid == (unsigned long) uid)
- || (suid == (unsigned long) uid)
+ || (suid == (unsigned long) uid) ) {
+ return 1;
+ }
#ifdef ENABLE_SUBIDS
- || have_sub_uids(name, ruid, 1)
- || have_sub_uids(name, euid, 1)
- || have_sub_uids(name, suid, 1)
-#endif /* ENABLE_SUBIDS */
+ if ( different_namespace (sname)
+ && ( have_sub_uids(name, ruid, 1)
+ || have_sub_uids(name, euid, 1)
+ || have_sub_uids(name, suid, 1))
) {
- (void) fclose (sfile);
return 1;
}
+#endif /* ENABLE_SUBIDS */
} else {
/* Ignore errors. This is just a best effort. */
}
- (void) fclose (sfile);
return 0;
}
}
--
2.25.2

115
SOURCES/shadow-4.6-selinux.patch Normal file
View File

@ -0,0 +1,115 @@
diff -up shadow-4.6/lib/semanage.c.selinux shadow-4.6/lib/semanage.c
--- shadow-4.6/lib/semanage.c.selinux 2018-04-29 18:42:37.000000000 +0200
+++ shadow-4.6/lib/semanage.c 2018-05-28 13:38:20.551008911 +0200
@@ -294,6 +294,9 @@ int set_seuser (const char *login_name,
ret = 0;
+ /* drop obsolete matchpathcon cache */
+ matchpathcon_fini();
+
done:
semanage_seuser_key_free (key);
semanage_handle_destroy (handle);
@@ -369,6 +372,10 @@ int del_seuser (const char *login_name)
}
ret = 0;
+
+ /* drop obsolete matchpathcon cache */
+ matchpathcon_fini();
+
done:
semanage_handle_destroy (handle);
return ret;
diff -up shadow-4.6/src/useradd.c.selinux shadow-4.6/src/useradd.c
--- shadow-4.6/src/useradd.c.selinux 2018-05-28 13:43:30.996748997 +0200
+++ shadow-4.6/src/useradd.c 2018-05-28 13:44:04.645486199 +0200
@@ -2120,6 +2120,7 @@ static void create_mail (void)
*/
int main (int argc, char **argv)
{
+ int rv = E_SUCCESS;
#ifdef ACCT_TOOLS_SETUID
#ifdef USE_PAM
pam_handle_t *pamh = NULL;
@@ -2342,27 +2343,11 @@ int main (int argc, char **argv)
usr_update ();
- if (mflg) {
- create_home ();
- if (home_added) {
- copy_tree (def_template, prefix_user_home, false, false,
- (uid_t)-1, user_id, (gid_t)-1, user_gid);
- } else {
- fprintf (stderr,
- _("%s: warning: the home directory already exists.\n"
- "Not copying any file from skel directory into it.\n"),
- Prog);
- }
-
- }
-
- /* Do not create mail directory for system accounts */
- if (!rflg) {
- create_mail ();
- }
-
close_files ();
+ nscd_flush_cache ("passwd");
+ nscd_flush_cache ("group");
+
/*
* tallylog_reset needs to be able to lookup
* a valid existing user name,
@@ -2373,8 +2358,9 @@ int main (int argc, char **argv)
}
#ifdef WITH_SELINUX
- if (Zflg) {
- if (set_seuser (user_name, user_selinux) != 0) {
+ if (Zflg && *user_selinux) {
+ if (is_selinux_enabled () > 0) {
+ if (set_seuser (user_name, user_selinux) != 0) {
fprintf (stderr,
_("%s: warning: the user name %s to %s SELinux user mapping failed.\n"),
Prog, user_name, user_selinux);
@@ -2383,14 +2369,31 @@ int main (int argc, char **argv)
"adding SELinux user mapping",
user_name, (unsigned int) user_id, 0);
#endif /* WITH_AUDIT */
- fail_exit (E_SE_UPDATE);
+ rv = E_SE_UPDATE;
+ }
}
}
-#endif /* WITH_SELINUX */
+#endif
- nscd_flush_cache ("passwd");
- nscd_flush_cache ("group");
+ if (mflg) {
+ create_home ();
+ if (home_added) {
+ copy_tree (def_template, prefix_user_home, false, true,
+ (uid_t)-1, user_id, (gid_t)-1, user_gid);
+ } else {
+ fprintf (stderr,
+ _("%s: warning: the home directory already exists.\n"
+ "Not copying any file from skel directory into it.\n"),
+ Prog);
+ }
+
+ }
+
+ /* Do not create mail directory for system accounts */
+ if (!rflg) {
+ create_mail ();
+ }
- return E_SUCCESS;
+ return rv;
}

641
SOURCES/shadow-4.6-sssd-flush.patch Normal file
View File

@ -0,0 +1,641 @@
From 4aaf05d72e9d6daf348cefb8a6ad35d2966cbe9b Mon Sep 17 00:00:00 2001
From: Jakub Hrozek <jakub.hrozek@posteo.se>
Date: Wed, 12 Sep 2018 14:22:11 +0200
Subject: [PATCH] Flush sssd caches in addition to nscd caches
Some distributions, notably Fedora, have the following order of nsswitch
modules by default:
passwd: sss files
group: sss files
The advantage of serving local users through SSSD is that the nss_sss
module has a fast mmapped-cache that speeds up NSS lookups compared to
accessing the disk an opening the files on each NSS request.
Traditionally, this has been done with the help of nscd, but using nscd
in parallel with sssd is cumbersome, as both SSSD and nscd use their own
independent caching, so using nscd in setups where sssd is also serving
users from some remote domain (LDAP, AD, ...) can result in a bit of
unpredictability.
More details about why Fedora chose to use sss before files can be found
on e.g.:
https://fedoraproject.org//wiki/Changes/SSSDCacheForLocalUsers
or:
https://docs.pagure.org/SSSD.sssd/design_pages/files_provider.html
Now, even though sssd watches the passwd and group files with the help
of inotify, there can still be a small window where someone requests a
user or a group, finds that it doesn't exist, adds the entry and checks
again. Without some support in shadow-utils that would explicitly drop
the sssd caches, the inotify watch can fire a little late, so a
combination of commands like this:
getent passwd user || useradd user; getent passwd user
can result in the second getent passwd not finding the newly added user
as the racy behaviour might still return the cached negative hit from
the first getent passwd.
This patch more or less copies the already existing support that
shadow-utils had for dropping nscd caches, except using the "sss_cache"
tool that sssd ships.
---
configure.ac | 10 +++++++
lib/Makefile.am | 2 ++
lib/commonio.c | 2 ++
lib/sssd.c | 75 +++++++++++++++++++++++++++++++++++++++++++++++++
lib/sssd.h | 17 +++++++++++
src/chfn.c | 2 ++
src/chgpasswd.c | 2 ++
src/chpasswd.c | 2 ++
src/chsh.c | 2 ++
src/gpasswd.c | 2 ++
src/groupadd.c | 2 ++
src/groupdel.c | 2 ++
src/groupmod.c | 2 ++
src/grpck.c | 2 ++
src/grpconv.c | 2 ++
src/grpunconv.c | 2 ++
src/newusers.c | 2 ++
src/passwd.c | 2 ++
src/pwck.c | 2 ++
src/pwconv.c | 2 ++
src/pwunconv.c | 2 ++
src/useradd.c | 2 ++
src/userdel.c | 2 ++
src/usermod.c | 2 ++
src/vipw.c | 2 ++
25 files changed, 146 insertions(+)
create mode 100644 lib/sssd.c
create mode 100644 lib/sssd.h
diff --git a/configure.ac b/configure.ac
index 41068a5d..10ad70cf 100644
--- a/configure.ac
+++ b/configure.ac
@@ -280,6 +280,9 @@ AC_ARG_WITH(sha-crypt,
AC_ARG_WITH(nscd,
[AC_HELP_STRING([--with-nscd], [enable support for nscd @<:@default=yes@:>@])],
[with_nscd=$withval], [with_nscd=yes])
+AC_ARG_WITH(sssd,
+ [AC_HELP_STRING([--with-sssd], [enable support for flushing sssd caches @<:@default=yes@:>@])],
+ [with_sssd=$withval], [with_sssd=yes])
AC_ARG_WITH(group-name-max-length,
[AC_HELP_STRING([--with-group-name-max-length], [set max group name length @<:@default=16@:>@])],
[with_group_name_max_length=$withval], [with_group_name_max_length=yes])
@@ -304,6 +307,12 @@ if test "$with_nscd" = "yes"; then
[AC_MSG_ERROR([posix_spawn is needed for nscd support])])
fi
+if test "$with_sssd" = "yes"; then
+ AC_CHECK_FUNC(posix_spawn,
+ [AC_DEFINE(USE_SSSD, 1, [Define to support flushing of sssd caches])],
+ [AC_MSG_ERROR([posix_spawn is needed for sssd support])])
+fi
+
dnl Check for some functions in libc first, only if not found check for
dnl other libraries. This should prevent linking libnsl if not really
dnl needed (Linux glibc, Irix), but still link it if needed (Solaris).
@@ -679,5 +688,6 @@ echo " shadow group support: $enable_shadowgrp"
echo " S/Key support: $with_skey"
echo " SHA passwords encryption: $with_sha_crypt"
echo " nscd support: $with_nscd"
+echo " sssd support: $with_sssd"
echo " subordinate IDs support: $enable_subids"
echo
diff --git a/lib/Makefile.am b/lib/Makefile.am
index 6db86cd6..fd634542 100644
--- a/lib/Makefile.am
+++ b/lib/Makefile.am
@@ -30,6 +30,8 @@ libshadow_la_SOURCES = \
lockpw.c \
nscd.c \
nscd.h \
+ sssd.c \
+ sssd.h \
pam_defs.h \
port.c \
port.h \
diff --git a/lib/commonio.c b/lib/commonio.c
index d06b8e7d..96f2d5f7 100644
--- a/lib/commonio.c
+++ b/lib/commonio.c
@@ -45,6 +45,7 @@
#include <stdio.h>
#include <signal.h>
#include "nscd.h"
+#include "sssd.h"
#ifdef WITH_TCB
#include <tcb.h>
#endif /* WITH_TCB */
@@ -485,6 +486,7 @@ static void dec_lock_count (void)
if (nscd_need_reload) {
nscd_flush_cache ("passwd");
nscd_flush_cache ("group");
+ sssd_flush_cache (SSSD_DB_PASSWD | SSSD_DB_GROUP);
nscd_need_reload = false;
}
#ifdef HAVE_LCKPWDF
diff --git a/lib/sssd.c b/lib/sssd.c
new file mode 100644
index 00000000..80e49e55
--- /dev/null
+++ b/lib/sssd.c
@@ -0,0 +1,75 @@
+/* Author: Peter Vrabec <pvrabec@redhat.com> */
+
+#include <config.h>
+#ifdef USE_SSSD
+
+#include <stdio.h>
+#include <sys/wait.h>
+#include <sys/types.h>
+#include "exitcodes.h"
+#include "defines.h"
+#include "prototypes.h"
+#include "sssd.h"
+
+#define MSG_SSSD_FLUSH_CACHE_FAILED "%s: Failed to flush the sssd cache.\n"
+
+int sssd_flush_cache (int dbflags)
+{
+ int status, code, rv;
+ const char *cmd = "/usr/sbin/sss_cache";
+ char *sss_cache_args = NULL;
+ const char *spawnedArgs[] = {"sss_cache", NULL, NULL};
+ const char *spawnedEnv[] = {NULL};
+ int i = 0;
+
+ sss_cache_args = malloc(4);
+ if (sss_cache_args == NULL) {
+ return -1;
+ }
+
+ sss_cache_args[i++] = '-';
+ if (dbflags & SSSD_DB_PASSWD) {
+ sss_cache_args[i++] = 'U';
+ }
+ if (dbflags & SSSD_DB_GROUP) {
+ sss_cache_args[i++] = 'G';
+ }
+ sss_cache_args[i++] = '\0';
+ if (i == 2) {
+ /* Neither passwd nor group, nothing to do */
+ free(sss_cache_args);
+ return 0;
+ }
+ spawnedArgs[1] = sss_cache_args;
+
+ rv = run_command (cmd, spawnedArgs, spawnedEnv, &status);
+ free(sss_cache_args);
+ if (rv != 0) {
+ /* run_command writes its own more detailed message. */
+ (void) fprintf (stderr, _(MSG_SSSD_FLUSH_CACHE_FAILED), Prog);
+ return -1;
+ }
+
+ code = WEXITSTATUS (status);
+ if (!WIFEXITED (status)) {
+ (void) fprintf (stderr,
+ _("%s: sss_cache did not terminate normally (signal %d)\n"),
+ Prog, WTERMSIG (status));
+ return -1;
+ } else if (code == E_CMD_NOTFOUND) {
+ /* sss_cache is not installed, or it is installed but uses an
+ interpreter that is missing. Probably the former. */
+ return 0;
+ } else if (code != 0) {
+ (void) fprintf (stderr, _("%s: sss_cache exited with status %d\n"),
+ Prog, code);
+ (void) fprintf (stderr, _(MSG_SSSD_FLUSH_CACHE_FAILED), Prog);
+ return -1;
+ }
+
+ return 0;
+}
+#else /* USE_SSSD */
+extern int errno; /* warning: ANSI C forbids an empty source file */
+#endif /* USE_SSSD */
+
diff --git a/lib/sssd.h b/lib/sssd.h
new file mode 100644
index 00000000..00ff2a8a
--- /dev/null
+++ b/lib/sssd.h
@@ -0,0 +1,17 @@
+#ifndef _SSSD_H_
+#define _SSSD_H_
+
+#define SSSD_DB_PASSWD 0x001
+#define SSSD_DB_GROUP 0x002
+
+/*
+ * sssd_flush_cache - flush specified service buffer in sssd cache
+ */
+#ifdef USE_SSSD
+extern int sssd_flush_cache (int dbflags);
+#else
+#define sssd_flush_cache(service) (0)
+#endif
+
+#endif
+
diff --git a/src/chfn.c b/src/chfn.c
index 18aa3de7..0725e1c7 100644
--- a/src/chfn.c
+++ b/src/chfn.c
@@ -47,6 +47,7 @@
#include "defines.h"
#include "getdef.h"
#include "nscd.h"
+#include "sssd.h"
#ifdef USE_PAM
#include "pam_defs.h"
#endif
@@ -746,6 +747,7 @@ int main (int argc, char **argv)
SYSLOG ((LOG_INFO, "changed user '%s' information", user));
nscd_flush_cache ("passwd");
+ sssd_flush_cache (SSSD_DB_PASSWD);
closelog ();
exit (E_SUCCESS);
diff --git a/src/chgpasswd.c b/src/chgpasswd.c
index 13203a46..e5f2eb7e 100644
--- a/src/chgpasswd.c
+++ b/src/chgpasswd.c
@@ -46,6 +46,7 @@
#endif /* ACCT_TOOLS_SETUID */
#include "defines.h"
#include "nscd.h"
+#include "sssd.h"
#include "prototypes.h"
#include "groupio.h"
#ifdef SHADOWGRP
@@ -581,6 +582,7 @@ int main (int argc, char **argv)
close_files ();
nscd_flush_cache ("group");
+ sssd_flush_cache (SSSD_DB_GROUP);
return (0);
}
diff --git a/src/chpasswd.c b/src/chpasswd.c
index 918b27ee..49e79cdb 100644
--- a/src/chpasswd.c
+++ b/src/chpasswd.c
@@ -44,6 +44,7 @@
#endif /* USE_PAM */
#include "defines.h"
#include "nscd.h"
+#include "sssd.h"
#include "getdef.h"
#include "prototypes.h"
#include "pwio.h"
@@ -624,6 +625,7 @@ int main (int argc, char **argv)
}
nscd_flush_cache ("passwd");
+ sssd_flush_cache (SSSD_DB_PASSWD);
return (0);
}
diff --git a/src/chsh.c b/src/chsh.c
index c89708b9..910e3dd4 100644
--- a/src/chsh.c
+++ b/src/chsh.c
@@ -46,6 +46,7 @@
#include "defines.h"
#include "getdef.h"
#include "nscd.h"
+#include "sssd.h"
#include "prototypes.h"
#include "pwauth.h"
#include "pwio.h"
@@ -557,6 +558,7 @@ int main (int argc, char **argv)
SYSLOG ((LOG_INFO, "changed user '%s' shell to '%s'", user, loginsh));
nscd_flush_cache ("passwd");
+ sssd_flush_cache (SSSD_DB_PASSWD);
closelog ();
exit (E_SUCCESS);
diff --git a/src/gpasswd.c b/src/gpasswd.c
index c4a492b1..4d75af96 100644
--- a/src/gpasswd.c
+++ b/src/gpasswd.c
@@ -45,6 +45,7 @@
#include "defines.h"
#include "groupio.h"
#include "nscd.h"
+#include "sssd.h"
#include "prototypes.h"
#ifdef SHADOWGRP
#include "sgroupio.h"
@@ -1201,6 +1202,7 @@ int main (int argc, char **argv)
close_files ();
nscd_flush_cache ("group");
+ sssd_flush_cache (SSSD_DB_GROUP);
exit (E_SUCCESS);
}
diff --git a/src/groupadd.c b/src/groupadd.c
index b57006c5..2dd8eec9 100644
--- a/src/groupadd.c
+++ b/src/groupadd.c
@@ -51,6 +51,7 @@
#include "getdef.h"
#include "groupio.h"
#include "nscd.h"
+#include "sssd.h"
#include "prototypes.h"
#ifdef SHADOWGRP
#include "sgroupio.h"
@@ -625,6 +626,7 @@ int main (int argc, char **argv)
close_files ();
nscd_flush_cache ("group");
+ sssd_flush_cache (SSSD_DB_GROUP);
return E_SUCCESS;
}
diff --git a/src/groupdel.c b/src/groupdel.c
index 70bed010..f941a84a 100644
--- a/src/groupdel.c
+++ b/src/groupdel.c
@@ -49,6 +49,7 @@
#include "defines.h"
#include "groupio.h"
#include "nscd.h"
+#include "sssd.h"
#include "prototypes.h"
#ifdef SHADOWGRP
#include "sgroupio.h"
@@ -492,6 +493,7 @@ int main (int argc, char **argv)
close_files ();
nscd_flush_cache ("group");
+ sssd_flush_cache (SSSD_DB_GROUP);
return E_SUCCESS;
}
diff --git a/src/groupmod.c b/src/groupmod.c
index b293b98f..1dca5fc9 100644
--- a/src/groupmod.c
+++ b/src/groupmod.c
@@ -51,6 +51,7 @@
#include "groupio.h"
#include "pwio.h"
#include "nscd.h"
+#include "sssd.h"
#include "prototypes.h"
#ifdef SHADOWGRP
#include "sgroupio.h"
@@ -877,6 +878,7 @@ int main (int argc, char **argv)
close_files ();
nscd_flush_cache ("group");
+ sssd_flush_cache (SSSD_DB_GROUP);
return E_SUCCESS;
}
diff --git a/src/grpck.c b/src/grpck.c
index ea5d3b39..6140b10d 100644
--- a/src/grpck.c
+++ b/src/grpck.c
@@ -45,6 +45,7 @@
#include "defines.h"
#include "groupio.h"
#include "nscd.h"
+#include "sssd.h"
#include "prototypes.h"
#ifdef SHADOWGRP
@@ -870,6 +871,7 @@ int main (int argc, char **argv)
close_files (changed);
nscd_flush_cache ("group");
+ sssd_flush_cache (SSSD_DB_GROUP);
/*
* Tell the user what we did and exit.
diff --git a/src/grpconv.c b/src/grpconv.c
index f95f4960..5e5eaaca 100644
--- a/src/grpconv.c
+++ b/src/grpconv.c
@@ -48,6 +48,7 @@
#include <unistd.h>
#include <getopt.h>
#include "nscd.h"
+#include "sssd.h"
#include "prototypes.h"
/*@-exitarg@*/
#include "exitcodes.h"
@@ -273,6 +274,7 @@ int main (int argc, char **argv)
}
nscd_flush_cache ("group");
+ sssd_flush_cache (SSSD_DB_GROUP);
return 0;
}
diff --git a/src/grpunconv.c b/src/grpunconv.c
index 253f06f5..e4105c26 100644
--- a/src/grpunconv.c
+++ b/src/grpunconv.c
@@ -48,6 +48,7 @@
#include <grp.h>
#include <getopt.h>
#include "nscd.h"
+#include "sssd.h"
#include "prototypes.h"
/*@-exitarg@*/
#include "exitcodes.h"
@@ -236,6 +237,7 @@ int main (int argc, char **argv)
}
nscd_flush_cache ("group");
+ sssd_flush_cache (SSSD_DB_GROUP);
return 0;
}
diff --git a/src/newusers.c b/src/newusers.c
index 8e4bef97..7c3bb1c2 100644
--- a/src/newusers.c
+++ b/src/newusers.c
@@ -62,6 +62,7 @@
#include "getdef.h"
#include "groupio.h"
#include "nscd.h"
+#include "sssd.h"
#include "pwio.h"
#include "sgroupio.h"
#include "shadowio.h"
@@ -1233,6 +1234,7 @@ int main (int argc, char **argv)
nscd_flush_cache ("passwd");
nscd_flush_cache ("group");
+ sssd_flush_cache (SSSD_DB_PASSWD | SSSD_DB_GROUP);
#ifdef USE_PAM
unsigned int i;
diff --git a/src/passwd.c b/src/passwd.c
index 3af3e651..5bea2765 100644
--- a/src/passwd.c
+++ b/src/passwd.c
@@ -51,6 +51,7 @@
#include "defines.h"
#include "getdef.h"
#include "nscd.h"
+#include "sssd.h"
#include "prototypes.h"
#include "pwauth.h"
#include "pwio.h"
@@ -1150,6 +1151,7 @@ int main (int argc, char **argv)
nscd_flush_cache ("passwd");
nscd_flush_cache ("group");
+ sssd_flush_cache (SSSD_DB_PASSWD | SSSD_DB_GROUP);
SYSLOG ((LOG_INFO, "password for '%s' changed by '%s'", name, myname));
closelog ();
diff --git a/src/pwck.c b/src/pwck.c
index 05df68ec..0ffb711e 100644
--- a/src/pwck.c
+++ b/src/pwck.c
@@ -48,6 +48,7 @@
#include "shadowio.h"
#include "getdef.h"
#include "nscd.h"
+#include "sssd.h"
#ifdef WITH_TCB
#include "tcbfuncs.h"
#endif /* WITH_TCB */
@@ -877,6 +878,7 @@ int main (int argc, char **argv)
close_files (changed);
nscd_flush_cache ("passwd");
+ sssd_flush_cache (SSSD_DB_PASSWD);
/*
* Tell the user what we did and exit.
diff --git a/src/pwconv.c b/src/pwconv.c
index d6ee31a8..9c69fa13 100644
--- a/src/pwconv.c
+++ b/src/pwconv.c
@@ -72,6 +72,7 @@
#include "pwio.h"
#include "shadowio.h"
#include "nscd.h"
+#include "sssd.h"
/*
* exit status values
@@ -328,6 +329,7 @@ int main (int argc, char **argv)
}
nscd_flush_cache ("passwd");
+ sssd_flush_cache (SSSD_DB_PASSWD);
return E_SUCCESS;
}
diff --git a/src/pwunconv.c b/src/pwunconv.c
index fabf0237..e11ea494 100644
--- a/src/pwunconv.c
+++ b/src/pwunconv.c
@@ -42,6 +42,7 @@
#include <getopt.h>
#include "defines.h"
#include "nscd.h"
+#include "sssd.h"
#include "prototypes.h"
#include "pwio.h"
#include "shadowio.h"
@@ -250,6 +251,7 @@ int main (int argc, char **argv)
}
nscd_flush_cache ("passwd");
+ sssd_flush_cache (SSSD_DB_PASSWD);
return 0;
}
diff --git a/src/useradd.c b/src/useradd.c
index ca90f076..b0c2224d 100644
--- a/src/useradd.c
+++ b/src/useradd.c
@@ -60,6 +60,7 @@
#include "getdef.h"
#include "groupio.h"
#include "nscd.h"
+#include "sssd.h"
#include "prototypes.h"
#include "pwauth.h"
#include "pwio.h"
@@ -2425,6 +2426,7 @@ int main (int argc, char **argv)
nscd_flush_cache ("passwd");
nscd_flush_cache ("group");
+ sssd_flush_cache (SSSD_DB_PASSWD | SSSD_DB_GROUP);
/*
* tallylog_reset needs to be able to lookup
diff --git a/src/userdel.c b/src/userdel.c
index c8de1d31..0715e4fe 100644
--- a/src/userdel.c
+++ b/src/userdel.c
@@ -53,6 +53,7 @@
#include "getdef.h"
#include "groupio.h"
#include "nscd.h"
+#include "sssd.h"
#include "prototypes.h"
#include "pwauth.h"
#include "pwio.h"
@@ -1328,6 +1329,7 @@ int main (int argc, char **argv)
nscd_flush_cache ("passwd");
nscd_flush_cache ("group");
+ sssd_flush_cache (SSSD_DB_PASSWD | SSSD_DB_GROUP);
return ((0 != errors) ? E_HOMEDIR : E_SUCCESS);
}
diff --git a/src/usermod.c b/src/usermod.c
index 7355ad31..fd9a98a6 100644
--- a/src/usermod.c
+++ b/src/usermod.c
@@ -57,6 +57,7 @@
#include "getdef.h"
#include "groupio.h"
#include "nscd.h"
+#include "sssd.h"
#include "prototypes.h"
#include "pwauth.h"
#include "pwio.h"
@@ -2255,6 +2256,7 @@ int main (int argc, char **argv)
nscd_flush_cache ("passwd");
nscd_flush_cache ("group");
+ sssd_flush_cache (SSSD_DB_PASSWD | SSSD_DB_GROUP);
#ifdef WITH_SELINUX
if (Zflg) {
diff --git a/src/vipw.c b/src/vipw.c
index 6d730f65..2cfac6b4 100644
--- a/src/vipw.c
+++ b/src/vipw.c
@@ -42,6 +42,7 @@
#include "defines.h"
#include "groupio.h"
#include "nscd.h"
+#include "sssd.h"
#include "prototypes.h"
#include "pwio.h"
#include "sgroupio.h"
@@ -556,6 +557,7 @@ int main (int argc, char **argv)
nscd_flush_cache ("passwd");
nscd_flush_cache ("group");
+ sssd_flush_cache (SSSD_DB_PASSWD | SSSD_DB_GROUP);
return E_SUCCESS;
}

34
SOURCES/shadow-4.6-sysugid-min-limit.patch Normal file
View File

@ -0,0 +1,34 @@
diff -up shadow-4.6/libmisc/find_new_gid.c.min-limit shadow-4.6/libmisc/find_new_gid.c
--- shadow-4.6/libmisc/find_new_gid.c.min-limit 2018-04-29 18:42:37.000000001 +0200
+++ shadow-4.6/libmisc/find_new_gid.c 2018-11-06 10:51:20.554963292 +0100
@@ -82,6 +82,13 @@ static int get_ranges (bool sys_group, g
(unsigned long) *max_id);
return EINVAL;
}
+ /*
+ * Zero is reserved for root and the allocation algorithm does not
+ * work right with it.
+ */
+ if (*min_id == 0) {
+ *min_id = (gid_t) 1;
+ }
} else {
/* Non-system groups */
diff -up shadow-4.6/libmisc/find_new_uid.c.min-limit shadow-4.6/libmisc/find_new_uid.c
--- shadow-4.6/libmisc/find_new_uid.c.min-limit 2018-04-29 18:42:37.000000001 +0200
+++ shadow-4.6/libmisc/find_new_uid.c 2018-11-06 10:51:39.341399569 +0100
@@ -82,6 +82,13 @@ static int get_ranges (bool sys_user, ui
(unsigned long) *max_id);
return EINVAL;
}
+ /*
+ * Zero is reserved for root and the allocation algorithm does not
+ * work right with it.
+ */
+ if (*min_id == 0) {
+ *min_id = (uid_t) 1;
+ }
} else {
/* Non-system users */

31
SOURCES/shadow-4.6-use-itstool.patch Normal file
View File

@ -0,0 +1,31 @@
diff -up shadow-4.6/man/generate_translations.mak.use-itstool shadow-4.6/man/generate_translations.mak
--- shadow-4.6/man/generate_translations.mak.use-itstool 2018-04-29 18:42:37.000000000 +0200
+++ shadow-4.6/man/generate_translations.mak 2018-07-31 16:42:21.623990969 +0200
@@ -5,8 +5,19 @@ config.xml: ../config.xml.in
$(MAKE) -C .. config.xml
cp ../config.xml $@
-%.xml: ../%.xml ../po/$(LANG).po
- xml2po --expand-all-entities -l $(LANG) -p ../po/$(LANG).po -o $@ ../$@
+messages.mo: ../po/$(LANG).po
+ msgfmt ../po/$(LANG).po -o messages.mo
+
+login.defs.d:
+ ln -sf ../login.defs.d login.defs.d
+
+%.xml: ../%.xml messages.mo login.defs.d
+ if grep -q SHADOW-CONFIG-HERE $< ; then \
+ sed -e 's/^<!-- SHADOW-CONFIG-HERE -->/<!ENTITY % config SYSTEM "config.xml">%config;/' $< > $@; \
+ else \
+ sed -e 's/^\(<!DOCTYPE .*docbookx.dtd"\)>/\1 [<!ENTITY % config SYSTEM "config.xml">%config;]>/' $< > $@; \
+ fi
+ itstool -d -l $(LANG) -m messages.mo -o . $@
sed -i 's:\(^<refentry .*\)>:\1 lang="$(LANG)">:' $@
include ../generate_mans.mak
@@ -16,4 +27,4 @@ $(man_MANS):
@echo you need to run configure with --enable-man to generate man pages
endif
-CLEANFILES = .xml2po.mo $(EXTRA_DIST) $(addsuffix .xml,$(EXTRA_DIST)) config.xml
+CLEANFILES = messages.mo login.defs.d $(EXTRA_DIST) $(addsuffix .xml,$(EXTRA_DIST)) config.xml

190
SOURCES/shadow-4.6-use-lckpwdf.patch Normal file
View File

@ -0,0 +1,190 @@
commit 408b8a548243aebaa6d773beeae8ddf4bb6100f0
Author: Tomas Mraz <tmraz@fedoraproject.org>
Date: Thu May 2 14:33:06 2019 +0200
Use the lckpwdf() again if prefix is not set
The implementation of prefix option dropped the use of lckpwdf().
However that is incorrect as other tools manipulating the shadow passwords
such as PAM use lckpwdf() and do not know anything about the
shadow's own locking mechanism.
This reverts the implementation to use lckpwdf() if prefix option
is not used.
diff --git a/lib/commonio.c b/lib/commonio.c
index 26e518f2..94dda779 100644
--- a/lib/commonio.c
+++ b/lib/commonio.c
@@ -364,6 +364,7 @@ static void free_linked_list (struct commonio_db *db)
int commonio_setname (struct commonio_db *db, const char *name)
{
snprintf (db->filename, sizeof (db->filename), "%s", name);
+ db->setname = true;
return 1;
}
@@ -414,37 +415,39 @@ cleanup_ENOMEM:
int commonio_lock (struct commonio_db *db)
{
-/*#ifdef HAVE_LCKPWDF*/ /* not compatible with prefix option*/
-#if 0
- /*
- * only if the system libc has a real lckpwdf() - the one from
- * lockpw.c calls us and would cause infinite recursion!
- */
+ int i;
+#ifdef HAVE_LCKPWDF
/*
- * Call lckpwdf() on the first lock.
- * If it succeeds, call *_lock() only once
- * (no retries, it should always succeed).
+ * Only if the system libc has a real lckpwdf() - the one from
+ * lockpw.c calls us and would cause infinite recursion!
+ * It is also not used with the prefix option.
*/
- if (0 == lock_count) {
- if (lckpwdf () == -1) {
- if (geteuid () != 0) {
- (void) fprintf (stderr,
- "%s: Permission denied.\n",
- Prog);
+ if (!db->setname) {
+ /*
+ * Call lckpwdf() on the first lock.
+ * If it succeeds, call *_lock() only once
+ * (no retries, it should always succeed).
+ */
+ if (0 == lock_count) {
+ if (lckpwdf () == -1) {
+ if (geteuid () != 0) {
+ (void) fprintf (stderr,
+ "%s: Permission denied.\n",
+ Prog);
+ }
+ return 0; /* failure */
}
- return 0; /* failure */
}
- }
- if (commonio_lock_nowait (db, true) != 0) {
- return 1; /* success */
- }
+ if (commonio_lock_nowait (db, true) != 0) {
+ return 1; /* success */
+ }
- ulckpwdf ();
- return 0; /* failure */
-#else /* !HAVE_LCKPWDF */
- int i;
+ ulckpwdf ();
+ return 0; /* failure */
+ }
+#endif /* !HAVE_LCKPWDF */
/*
* lckpwdf() not used - do it the old way.
@@ -471,7 +474,6 @@ int commonio_lock (struct commonio_db *db)
}
}
return 0; /* failure */
-#endif /* !HAVE_LCKPWDF */
}
static void dec_lock_count (void)
diff --git a/lib/commonio.h b/lib/commonio.h
index 40e5708f..64e83073 100644
--- a/lib/commonio.h
+++ b/lib/commonio.h
@@ -143,6 +143,7 @@ struct commonio_db {
bool isopen:1;
bool locked:1;
bool readonly:1;
+ bool setname:1;
};
extern int commonio_setname (struct commonio_db *, const char *);
diff --git a/lib/groupio.c b/lib/groupio.c
index ae2302b5..bffb06e0 100644
--- a/lib/groupio.c
+++ b/lib/groupio.c
@@ -139,7 +139,8 @@ static /*@owned@*/struct commonio_db group_db = {
false, /* changed */
false, /* isopen */
false, /* locked */
- false /* readonly */
+ false, /* readonly */
+ false /* setname */
};
int gr_setdbname (const char *filename)
diff --git a/lib/pwio.c b/lib/pwio.c
index 7ee85377..127719cb 100644
--- a/lib/pwio.c
+++ b/lib/pwio.c
@@ -114,7 +114,8 @@ static struct commonio_db passwd_db = {
false, /* changed */
false, /* isopen */
false, /* locked */
- false /* readonly */
+ false, /* readonly */
+ false /* setname */
};
int pw_setdbname (const char *filename)
diff --git a/lib/sgroupio.c b/lib/sgroupio.c
index 5423626a..ffbdb263 100644
--- a/lib/sgroupio.c
+++ b/lib/sgroupio.c
@@ -238,7 +238,8 @@ static struct commonio_db gshadow_db = {
false, /* changed */
false, /* isopen */
false, /* locked */
- false /* readonly */
+ false, /* readonly */
+ false /* setname */
};
int sgr_setdbname (const char *filename)
diff --git a/lib/shadowio.c b/lib/shadowio.c
index 5fa3d312..676b1f1a 100644
--- a/lib/shadowio.c
+++ b/lib/shadowio.c
@@ -114,7 +114,8 @@ static struct commonio_db shadow_db = {
false, /* changed */
false, /* isopen */
false, /* locked */
- false /* readonly */
+ false, /* readonly */
+ false /* setname */
};
int spw_setdbname (const char *filename)
diff --git a/lib/subordinateio.c b/lib/subordinateio.c
index a662e67e..dd779c59 100644
--- a/lib/subordinateio.c
+++ b/lib/subordinateio.c
@@ -550,7 +550,8 @@ static struct commonio_db subordinate_uid_db = {
false, /* changed */
false, /* isopen */
false, /* locked */
- false /* readonly */
+ false, /* readonly */
+ false /* setname */
};
int sub_uid_setdbname (const char *filename)
@@ -631,7 +632,8 @@ static struct commonio_db subordinate_gid_db = {
false, /* changed */
false, /* isopen */
false, /* locked */
- false /* readonly */
+ false, /* readonly */
+ false /* setname */
};
int sub_gid_setdbname (const char *filename)

42
SOURCES/shadow-4.6-usermod-crash.patch Normal file
View File

@ -0,0 +1,42 @@
diff -up shadow-4.6/libmisc/prefix_flag.c.usermod-crash shadow-4.6/libmisc/prefix_flag.c
--- shadow-4.6/libmisc/prefix_flag.c.usermod-crash 2018-04-29 18:42:37.000000000 +0200
+++ shadow-4.6/libmisc/prefix_flag.c 2018-05-28 15:14:10.642302440 +0200
@@ -319,6 +319,7 @@ extern struct group *prefix_getgr_nam_gi
{
long long int gid;
char *endptr;
+ struct group *g;
if (NULL == grname) {
return NULL;
@@ -333,7 +334,8 @@ extern struct group *prefix_getgr_nam_gi
&& (gid == (gid_t)gid)) {
return prefix_getgrgid ((gid_t) gid);
}
- return prefix_getgrnam (grname);
+ g = prefix_getgrnam (grname);
+ return g ? __gr_dup(g) : NULL;
}
else
return getgr_nam_gid(grname);
diff -up shadow-4.6/src/usermod.c.usermod-crash shadow-4.6/src/usermod.c
--- shadow-4.6/src/usermod.c.usermod-crash 2018-05-28 15:12:37.920332763 +0200
+++ shadow-4.6/src/usermod.c 2018-05-28 15:15:50.337422470 +0200
@@ -1276,11 +1276,13 @@ static void process_flags (int argc, cha
prefix_user_home = xmalloc(len);
wlen = snprintf(prefix_user_home, len, "%s/%s", prefix, user_home);
assert (wlen == (int) len -1);
+ if (user_newhome) {
+ len = strlen(prefix) + strlen(user_newhome) + 2;
+ prefix_user_newhome = xmalloc(len);
+ wlen = snprintf(prefix_user_newhome, len, "%s/%s", prefix, user_newhome);
+ assert (wlen == (int) len -1);
+ }
- len = strlen(prefix) + strlen(user_newhome) + 2;
- prefix_user_newhome = xmalloc(len);
- wlen = snprintf(prefix_user_newhome, len, "%s/%s", prefix, user_newhome);
- assert (wlen == (int) len -1);
}
else {
prefix_user_home = user_home;

11
SOURCES/shadow-4.6.tar.xz.asc Normal file
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@ -0,0 +1,11 @@
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iQEzBAABCgAdFiEE8dCNt3gYW/eEAC3/6f7qBqheP50FAlrncOkACgkQ6f7qBqhe
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hLVKu2OU7mzuPTMSAraAxjXLkrM0E3vFjMtu1fHBGlGTMspAfik/9Gu9qoevAKXy
BRqgN5m5HMfoGPeEjzILzaGq8bnPKIOfJ0iAYVkjjIa73Vn20uTmNgNZIRqHqwfw
5GUFHn6cjQXFcQ3ngywgwQD7/h/65w8dBbGysF551sAqzPJRbneQL9Wtklcqi1ub
55NyF0ifT67RqMh+EyxhuhXP1Hi57PTEAeqaFMFxnPlQPb+8pQ8nszWBmI+vUN8D
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=fk/F
-----END PGP SIGNATURE-----

32
SOURCES/shadow-bsd.txt Normal file
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@ -0,0 +1,32 @@
/*
* Copyright (c) 1990 - 1994, Julianne Frances Haugh
* Copyright (c) 1996 - 2000, Marek Michałkiewicz
* Copyright (c) 2000 - 2006, Tomasz Kłoczko
* Copyright (c) 2007 - 2011, Nicolas François
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the copyright holders or contributors may not be used to
* endorse or promote products derived from this software without
* specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
* PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/

72
SOURCES/shadow-utils.login.defs Normal file
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@ -0,0 +1,72 @@
#
# Please note that the parameters in this configuration file control the
# behavior of the tools from the shadow-utils component. None of these
# tools uses the PAM mechanism, and the utilities that use PAM (such as the
# passwd command) should therefore be configured elsewhere. Refer to
# /etc/pam.d/system-auth for more information.
#
# *REQUIRED*
# Directory where mailboxes reside, _or_ name of file, relative to the
# home directory. If you _do_ define both, MAIL_DIR takes precedence.
# QMAIL_DIR is for Qmail
#
#QMAIL_DIR Maildir
MAIL_DIR /var/spool/mail
#MAIL_FILE .mail
# Password aging controls:
#
# PASS_MAX_DAYS Maximum number of days a password may be used.
# PASS_MIN_DAYS Minimum number of days allowed between password changes.
# PASS_MIN_LEN Minimum acceptable password length.
# PASS_WARN_AGE Number of days warning given before a password expires.
#
PASS_MAX_DAYS 99999
PASS_MIN_DAYS 0
PASS_MIN_LEN 5
PASS_WARN_AGE 7
#
# Min/max values for automatic uid selection in useradd
#
UID_MIN 1000
UID_MAX 60000
# System accounts
SYS_UID_MIN 201
SYS_UID_MAX 999
#
# Min/max values for automatic gid selection in groupadd
#
GID_MIN 1000
GID_MAX 60000
# System accounts
SYS_GID_MIN 201
SYS_GID_MAX 999
#
# If defined, this command is run when removing a user.
# It should remove any at/cron/print jobs etc. owned by
# the user to be removed (passed as the first argument).
#
#USERDEL_CMD /usr/sbin/userdel_local
#
# If useradd should create home directories for users by default
# On RH systems, we do. This option is overridden with the -m flag on
# useradd command line.
#
CREATE_HOME yes
# The permission mask is initialized to this value. If not specified,
# the permission mask will be initialized to 022.
UMASK 077
# This enables userdel to remove user groups if no members exist.
#
USERGROUPS_ENAB yes
# Use SHA512 to encrypt password.
ENCRYPT_METHOD SHA512

9
SOURCES/shadow-utils.useradd Normal file
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@ -0,0 +1,9 @@
# useradd defaults file
GROUP=100
HOME=/home
INACTIVE=-1
EXPIRE=
SHELL=/bin/bash
SKEL=/etc/skel
CREATE_MAIL_SPOOL=yes

1209
SPECS/shadow-utils.spec Normal file
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