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repair broken ls in chroot %%h

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This commit is contained in:
Jan F. Chadima 2009-06-23 17:59:23 +00:00
parent ecd8460a44
commit c1398b876e
2 changed files with 59 additions and 6 deletions
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60
openssh-5.2p1-homechroot.patch
View File

@ -1,6 +1,16 @@
--- openssh-5.2p1/session.c 2009-03-20 18:08:11.263662384 +0100
+++ openssh-5.2p1/session.c 2009-03-20 18:26:29.925498409 +0100
@@ -1408,6 +1408,7 @@
diff -up openssh-5.2p1/session.c.homechroot openssh-5.2p1/session.c
--- openssh-5.2p1/session.c.homechroot 2009-06-23 11:33:36.052163641 +0200
+++ openssh-5.2p1/session.c 2009-06-23 11:33:36.372159228 +0200
@@ -1398,6 +1398,8 @@ do_nologin(struct passwd *pw)
}
}
+int chroot_no_tree = 0;
+
/*
* Chroot into a directory after checking it for safety: all path components
* must be root-owned directories with strict permissions.
@@ -1408,6 +1410,7 @@ safely_chroot(const char *path, uid_t ui
const char *cp;
char component[MAXPATHLEN];
struct stat st;
@ -8,7 +18,7 @@
if (*path != '/')
fatal("chroot path does not begin at root");
@@ -1419,7 +1420,7 @@
@@ -1419,7 +1422,7 @@ safely_chroot(const char *path, uid_t ui
* root-owned directory with strict permissions.
*/
for (cp = path; cp != NULL;) {
@ -17,7 +27,7 @@
strlcpy(component, path, sizeof(component));
else {
cp++;
@@ -1432,7 +1433,7 @@
@@ -1432,13 +1435,15 @@ safely_chroot(const char *path, uid_t ui
if (stat(component, &st) != 0)
fatal("%s: stat(\"%s\"): %s", __func__,
component, strerror(errno));
@ -26,3 +36,43 @@
fatal("bad ownership or modes for chroot "
"directory %s\"%s\"",
cp == NULL ? "" : "component ", component);
if (!S_ISDIR(st.st_mode))
fatal("chroot path %s\"%s\" is not a directory",
cp == NULL ? "" : "component ", component);
+ if (st.st_uid != uid)
+ ++chroot_no_tree;
}
diff -up openssh-5.2p1/sftp-server.c.homechroot openssh-5.2p1/sftp-server.c
--- openssh-5.2p1/sftp-server.c.homechroot 2008-07-04 06:10:19.000000000 +0200
+++ openssh-5.2p1/sftp-server.c 2009-06-23 11:33:36.374154561 +0200
@@ -887,6 +887,7 @@ process_opendir(void)
static void
process_readdir(void)
{
+ extern int chroot_no_tree;
DIR *dirp;
struct dirent *dp;
char *path;
@@ -920,7 +921,7 @@ process_readdir(void)
continue;
stat_to_attrib(&st, &(stats[count].attrib));
stats[count].name = xstrdup(dp->d_name);
- stats[count].long_name = ls_file(dp->d_name, &st, 0);
+ stats[count].long_name = ls_file(dp->d_name, &st, chroot_no_tree);
count++;
/* send up to 100 entries in one message */
/* XXX check packet size instead */
diff -up openssh-5.2p1/sftp-server-main.c.homechroot openssh-5.2p1/sftp-server-main.c
--- openssh-5.2p1/sftp-server-main.c.homechroot 2009-02-21 22:47:02.000000000 +0100
+++ openssh-5.2p1/sftp-server-main.c 2009-06-23 11:33:36.378159051 +0200
@@ -27,6 +27,8 @@
#include "sftp.h"
#include "misc.h"
+int chroot_no_tree = 0;
+
void
cleanup_exit(int i)
{

5
openssh.spec
View File

@ -63,7 +63,7 @@
Summary: An open source implementation of SSH protocol versions 1 and 2
Name: openssh
Version: 5.2p1
Release: 8%{?dist}%{?rescue_rel}
Release: 9%{?dist}%{?rescue_rel}
URL: http://www.openssh.com/portable.html
#Source0: ftp://ftp.openbsd.org/pub/OpenBSD/OpenSSH/portable/openssh-%{version}.tar.gz
#Source1: ftp://ftp.openbsd.org/pub/OpenBSD/OpenSSH/portable/openssh-%{version}.tar.gz.asc
@ -466,6 +466,9 @@ fi
%endif
%changelog
* Tue Jun 23 2009 Jan F. Chadima <jchadima@redhat.com> - 5.2p1-9
- repair broken ls in chroot %%h
* Fri Jun 12 2009 Jan F. Chadima <jchadima@redhat.com> - 5.2p1-8
- add XMODIFIERS to exported environment