fix sudo-1.6.9p4-audit.patch
This commit is contained in:
Peter Vrabec
parent
bb69e9d436
commit
ac1c9e7793
@ -1,145 +1,86 @@
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diff -up sudo-1.6.9p4/audit_help.c.audit sudo-1.6.9p4/audit_help.c
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--- sudo-1.6.9p4/audit_help.c.audit 2007-08-30 20:06:30.000000000 +0400
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+++ sudo-1.6.9p4/audit_help.c 2007-08-30 20:06:30.000000000 +0400
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@@ -0,0 +1,81 @@
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+/*
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+ * Audit helper functions used throughout sudo
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+ *
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+ * Copyright (C) 2007, Red Hat, Inc.
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+ *
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+ * Redistribution and use in source and binary forms, with or without
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+ * modification, are permitted provided that the following conditions
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+ * are met:
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+ * 1. Redistributions of source code must retain the above copyright
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+ * notice, this list of conditions and the following disclaimer.
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+ * 2. Redistributions in binary form must reproduce the above copyright
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+ * notice, this list of conditions and the following disclaimer in the
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+ * documentation and/or other materials provided with the distribution.
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+ * 3. Neither the name of Julianne F. Haugh nor the names of its contributors
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+ * may be used to endorse or promote products derived from this software
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+ * without specific prior written permission.
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+ *
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+ * THIS SOFTWARE IS PROVIDED BY JULIE HAUGH AND CONTRIBUTORS ``AS IS'' AND
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+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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+ * ARE DISCLAIMED. IN NO EVENT SHALL JULIE HAUGH OR CONTRIBUTORS BE LIABLE
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+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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+ * SUCH DAMAGE.
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+ */
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+
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+#include <config.h>
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+
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+#ifdef WITH_AUDIT
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+
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+#include <stdlib.h>
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+#include <syslog.h>
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+#include <stdarg.h>
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+#include <libaudit.h>
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+#include <errno.h>
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+#include <stdio.h>
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+
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+int audit_fd;
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+
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+void audit_help_open (void)
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+{
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+ audit_fd = audit_open ();
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+ if (audit_fd < 0) {
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+ /* You get these only when the kernel doesn't have
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+ * audit compiled in. */
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+ if (errno == EINVAL || errno == EPROTONOSUPPORT ||
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+ errno == EAFNOSUPPORT)
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+ return;
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+ fprintf (stderr, "Cannot open audit interface - aborting.\n");
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+ exit (1);
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+ }
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+}
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+
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+/*
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+ * This function will log a message to the audit system using a predefined
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+ * message format. Parameter usage is as follows:
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+ *
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+ * type - type of message: AUDIT_USER_CMD
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+ * command - the command being logged
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+ * result - 1 is "success" and 0 is "failed"
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+ *
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+ */
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+void audit_logger (int type, const char *command, int result)
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+{
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+ int err;
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+
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+ if (audit_fd < 0)
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+ return;
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+ else {
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+ err = audit_log_user_command (audit_fd, type, command, NULL, result);
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+ /* The kernel supports auditing and we had
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+ enough privilege to write to the socket. */
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+ if( err <= 0 && !(errno == EPERM && getuid() != 0) ) {
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+ perror("audit_log_user_command()");
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+ }
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+ }
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+}
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+
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+#endif /* WITH_AUDIT */
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+
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diff -up sudo-1.6.9p4/Makefile.in.audit sudo-1.6.9p4/Makefile.in
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--- sudo-1.6.9p4/Makefile.in.audit 2007-08-15 18:16:57.000000000 +0400
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+++ sudo-1.6.9p4/Makefile.in 2007-08-30 20:06:30.000000000 +0400
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@@ -118,11 +118,13 @@ HDRS = compat.h def_data.h defaults.h in
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AUTH_OBJS = sudo_auth.o @AUTH_OBJS@
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+AUDIT_OBJS = audit_help.o
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+
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PARSEOBJS = sudo.tab.o lex.yy.o alloc.o defaults.o
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SUDOBJS = check.o env.o getspwuid.o gettime.o goodpath.o fileops.o find_path.o \
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interfaces.o logging.o parse.o set_perms.o sudo.o sudo_edit.o \
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- tgetpass.o zero_bytes.o @SUDO_OBJS@ $(AUTH_OBJS) $(PARSEOBJS)
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+ tgetpass.o zero_bytes.o @SUDO_OBJS@ $(AUTH_OBJS) $(PARSEOBJS) $(AUDIT_OBJS)
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VISUDOBJS = visudo.o fileops.o gettime.o goodpath.o find_path.o $(PARSEOBJS)
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@@ -273,6 +275,9 @@ securid5.o: $(authdir)/securid5.c $(AUTH
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sia.o: $(authdir)/sia.c $(AUTHDEP)
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$(CC) -c $(CPPFLAGS) $(CFLAGS) $(DEFS) $(OPTIONS) $(authdir)/sia.c
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+audit_help.o: audit_help.c sudo.h
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+ $(CC) -c $(CPPFLAGS) $(CFLAGS) $(DEFS) $(OPTIONS) $(LIBADUIT) $(srcdir)/audit_help.c
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+
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sudo.man.in: $(srcdir)/sudo.pod
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@rm -f $(srcdir)/$@
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( cd $(srcdir); mansectsu=`echo @MANSECTSU@|tr A-Z a-z`; mansectform=`echo @MANSECTFORM@|tr A-Z a-z`; sed -n -e 1d -e '/^=pod/q' -e 's/^/.\\" /p' sudo.pod > $@; pod2man --quotes=none --date="`date '+%B %e, %Y'`" --section=$$mansectsu --release=$(VERSION) --center="MAINTENANCE COMMANDS" sudo.pod | sed -e "s/(5)/($$mansectform)/" -e "s/(8)/($$mansectsu)/" >> $@ )
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diff -up sudo-1.6.9p4/sudo.h.audit sudo-1.6.9p4/sudo.h
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--- sudo-1.6.9p4/sudo.h.audit 2007-08-30 20:06:30.000000000 +0400
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+++ sudo-1.6.9p4/sudo.h 2007-08-30 20:06:30.000000000 +0400
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@@ -23,6 +23,8 @@
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#ifndef _SUDO_SUDO_H
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#define _SUDO_SUDO_H
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+#include <config.h>
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+
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#include <pathnames.h>
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#include <limits.h>
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#include "compat.h"
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@@ -274,4 +276,10 @@ extern int sudo_mode;
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extern int errno;
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diff -up sudo-1.6.9p4/set_perms.c.audit sudo-1.6.9p4/set_perms.c
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--- sudo-1.6.9p4/set_perms.c.audit 2007-07-06 16:16:22.000000000 +0200
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+++ sudo-1.6.9p4/set_perms.c 2008-01-07 19:52:41.000000000 +0100
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@@ -53,6 +53,10 @@
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#ifdef HAVE_LOGIN_CAP_H
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# include <login_cap.h>
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#endif
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+#ifdef WITH_AUDIT
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+extern int audit_fd;
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+extern void audit_help_open (void);
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+extern void audit_logger (int, const char *, int);
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+#if defined(WITH_AUDIT) && defined(HAVE_LIBCAP)
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+# include <sys/prctl.h>
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+# include <sys/capability.h>
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+#endif
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#include "sudo.h"
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@@ -101,22 +105,55 @@ set_perms(perm)
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if (setresuid(user_uid, user_uid, user_uid))
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err(1, "setresuid(user_uid, user_uid, user_uid)");
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break;
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-
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+
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#endif /* _SUDO_SUDO_H */
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+ case PERM_FULL_RUNAS:
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+#if defined(WITH_AUDIT) && defined(HAVE_LIBCAP)
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+ { /* BEGIN CAP BLOCK */
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+ cap_t new_caps;
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+ cap_value_t cap_list[] = { CAP_AUDIT_WRITE };
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+
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+ if (runas_pw->pw_uid != ROOT_UID) {
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+ new_caps = cap_init ();
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+ if (!new_caps)
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+ err(1, "Error initing capabilities, aborting.\n");
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+
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+ if(cap_set_flag(new_caps, CAP_PERMITTED, 1, cap_list, CAP_SET) ||
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+ cap_set_flag(new_caps, CAP_EFFECTIVE, 1, cap_list, CAP_SET)) {
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+ err(1, "Error setting capabilities, aborting\n");
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+ }
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+
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+ if (prctl(PR_SET_KEEPCAPS, 1, 0, 0, 0))
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+ err(1, "Error setting KEEPCAPS, aborting\n");
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+ }
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+#endif
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+ /* headed for exec(), assume euid == ROOT_UID */
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+ runas_setup ();
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+ if (setresuid(def_stay_setuid ?
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+ user_uid : runas_pw->pw_uid,
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+ runas_pw->pw_uid, runas_pw->pw_uid))
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+ err(1, "unable to change to runas uid");
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+
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+#if defined(WITH_AUDIT) && defined(HAVE_LIBCAP)
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+ if (runas_pw->pw_uid != ROOT_UID) {
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+ if (prctl(PR_SET_KEEPCAPS, 0, 0, 0, 0) < 0)
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+ err(1, "Error resetting KEEPCAPS, aborting\n");
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+
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+ if (cap_set_proc(new_caps))
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+ err(1, "Error dropping capabilities, aborting\n");
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+
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+ if (cap_free (new_caps))
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+ err(1, "Error freeing caps\n");
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+ }
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+ } /* END CAP BLOCK */
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+#endif
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+ break;
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+
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case PERM_RUNAS:
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(void) setresgid(-1, runas_pw->pw_gid, -1);
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if (setresuid(-1, runas_pw->pw_uid, -1))
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err(1, "unable to change to runas uid");
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break;
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- case PERM_FULL_RUNAS:
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- /* headed for exec(), assume euid == ROOT_UID */
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- runas_setup();
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- if (setresuid(def_stay_setuid ?
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- user_uid : runas_pw->pw_uid,
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- runas_pw->pw_uid, runas_pw->pw_uid))
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- err(1, "unable to change to runas uid");
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- break;
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-
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case PERM_SUDOERS:
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/* assume euid == ROOT_UID, ruid == user */
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if (setresgid(-1, SUDOERS_GID, -1))
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diff -up sudo-1.6.9p4/sudo.c.audit sudo-1.6.9p4/sudo.c
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--- sudo-1.6.9p4/sudo.c.audit 2007-08-30 20:06:30.000000000 +0400
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+++ sudo-1.6.9p4/sudo.c 2007-08-30 20:18:26.000000000 +0400
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--- sudo-1.6.9p4/sudo.c.audit 2008-01-07 19:52:41.000000000 +0100
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+++ sudo-1.6.9p4/sudo.c 2008-01-07 19:52:41.000000000 +0100
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@@ -97,6 +97,10 @@
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# include <sys/task.h>
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#endif
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@ -280,8 +221,8 @@ diff -up sudo-1.6.9p4/sudo.c.audit sudo-1.6.9p4/sudo.c
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exit(127);
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} else if (ISSET(validated, FLAG_NO_USER) || (validated & FLAG_NO_HOST)) {
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diff -up sudo-1.6.9p4/configure.in.audit sudo-1.6.9p4/configure.in
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--- sudo-1.6.9p4/configure.in.audit 2007-08-30 20:06:30.000000000 +0400
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+++ sudo-1.6.9p4/configure.in 2007-08-30 20:06:30.000000000 +0400
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--- sudo-1.6.9p4/configure.in.audit 2008-01-07 19:52:41.000000000 +0100
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+++ sudo-1.6.9p4/configure.in 2008-01-07 19:52:41.000000000 +0100
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@@ -150,6 +150,10 @@ dnl
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dnl Options for --with
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dnl
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@ -319,83 +260,146 @@ diff -up sudo-1.6.9p4/configure.in.audit sudo-1.6.9p4/configure.in
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dnl
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dnl Add in any libpaths or libraries specified via configure
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dnl
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diff -up sudo-1.6.9p4/set_perms.c.audit sudo-1.6.9p4/set_perms.c
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--- sudo-1.6.9p4/set_perms.c.audit 2007-07-06 18:16:22.000000000 +0400
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+++ sudo-1.6.9p4/set_perms.c 2007-08-30 20:06:30.000000000 +0400
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@@ -53,6 +53,10 @@
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#ifdef HAVE_LOGIN_CAP_H
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# include <login_cap.h>
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diff -up /dev/null sudo-1.6.9p4/audit_help.c
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--- /dev/null 2008-01-04 00:33:16.572612675 +0100
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+++ sudo-1.6.9p4/audit_help.c 2008-01-07 19:55:40.000000000 +0100
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@@ -0,0 +1,88 @@
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+/*
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+ * Audit helper functions used throughout sudo
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+ *
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+ * Copyright (C) 2007, Red Hat, Inc.
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+ *
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+ * Redistribution and use in source and binary forms, with or without
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+ * modification, are permitted provided that the following conditions
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+ * are met:
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+ * 1. Redistributions of source code must retain the above copyright
|
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+ * notice, this list of conditions and the following disclaimer.
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+ * 2. Redistributions in binary form must reproduce the above copyright
|
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+ * notice, this list of conditions and the following disclaimer in the
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+ * documentation and/or other materials provided with the distribution.
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+ * 3. Neither the name of Julianne F. Haugh nor the names of its contributors
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+ * may be used to endorse or promote products derived from this software
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+ * without specific prior written permission.
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+ *
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+ * THIS SOFTWARE IS PROVIDED BY JULIE HAUGH AND CONTRIBUTORS ``AS IS'' AND
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+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
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+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
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+ * ARE DISCLAIMED. IN NO EVENT SHALL JULIE HAUGH OR CONTRIBUTORS BE LIABLE
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+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
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+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
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+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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+ * SUCH DAMAGE.
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+ */
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+
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+#include <config.h>
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+
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+#ifdef WITH_AUDIT
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+
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+#include <stdlib.h>
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+#include <syslog.h>
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+#include <stdarg.h>
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+#include <libaudit.h>
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+#include <errno.h>
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+#include <stdio.h>
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+#include <unistd.h>
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+#include <sys/types.h>
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+
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+int audit_fd;
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+
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+void audit_help_open (void)
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+{
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+ audit_fd = audit_open ();
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+ if (audit_fd < 0) {
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+ /* You get these only when the kernel doesn't have
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+ * audit compiled in. */
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+ if (errno == EINVAL || errno == EPROTONOSUPPORT ||
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+ errno == EAFNOSUPPORT)
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+ return;
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+ fprintf (stderr, "Cannot open audit interface - aborting.\n");
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+ exit (1);
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+ }
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+}
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+
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+/*
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+ * This function will log a message to the audit system using a predefined
|
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+ * message format. Parameter usage is as follows:
|
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+ *
|
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+ * type - type of message: AUDIT_USER_CMD
|
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+ * command - the command being logged
|
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+ * result - 1 is "success" and 0 is "failed"
|
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+ *
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+ */
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+void audit_logger (int type, const char *command, int result)
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+{
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+ int err;
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+
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+ if (audit_fd < 0)
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+ return;
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+ else {
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+ err = audit_log_user_command (audit_fd, type, command, NULL, result);
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+ /* The kernel supports auditing and we had
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+ enough privilege to write to the socket. */
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+ if( err <= 0 && !(errno == EPERM && getuid() != 0) ) {
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+ perror("audit_log_user_command()");
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+ }
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+ }
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+}
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+
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+
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+#endif /* WITH_AUDIT */
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+
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+
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diff -up sudo-1.6.9p4/Makefile.in.audit sudo-1.6.9p4/Makefile.in
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--- sudo-1.6.9p4/Makefile.in.audit 2007-08-15 16:16:57.000000000 +0200
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+++ sudo-1.6.9p4/Makefile.in 2008-01-07 19:52:41.000000000 +0100
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@@ -118,11 +118,13 @@ HDRS = compat.h def_data.h defaults.h in
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AUTH_OBJS = sudo_auth.o @AUTH_OBJS@
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+AUDIT_OBJS = audit_help.o
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+
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PARSEOBJS = sudo.tab.o lex.yy.o alloc.o defaults.o
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SUDOBJS = check.o env.o getspwuid.o gettime.o goodpath.o fileops.o find_path.o \
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interfaces.o logging.o parse.o set_perms.o sudo.o sudo_edit.o \
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- tgetpass.o zero_bytes.o @SUDO_OBJS@ $(AUTH_OBJS) $(PARSEOBJS)
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+ tgetpass.o zero_bytes.o @SUDO_OBJS@ $(AUTH_OBJS) $(PARSEOBJS) $(AUDIT_OBJS)
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VISUDOBJS = visudo.o fileops.o gettime.o goodpath.o find_path.o $(PARSEOBJS)
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@@ -273,6 +275,9 @@ securid5.o: $(authdir)/securid5.c $(AUTH
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sia.o: $(authdir)/sia.c $(AUTHDEP)
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$(CC) -c $(CPPFLAGS) $(CFLAGS) $(DEFS) $(OPTIONS) $(authdir)/sia.c
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+audit_help.o: audit_help.c sudo.h
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+ $(CC) -c $(CPPFLAGS) $(CFLAGS) $(DEFS) $(OPTIONS) $(LIBADUIT) $(srcdir)/audit_help.c
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+
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sudo.man.in: $(srcdir)/sudo.pod
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@rm -f $(srcdir)/$@
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( cd $(srcdir); mansectsu=`echo @MANSECTSU@|tr A-Z a-z`; mansectform=`echo @MANSECTFORM@|tr A-Z a-z`; sed -n -e 1d -e '/^=pod/q' -e 's/^/.\\" /p' sudo.pod > $@; pod2man --quotes=none --date="`date '+%B %e, %Y'`" --section=$$mansectsu --release=$(VERSION) --center="MAINTENANCE COMMANDS" sudo.pod | sed -e "s/(5)/($$mansectform)/" -e "s/(8)/($$mansectsu)/" >> $@ )
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diff -up sudo-1.6.9p4/sudo.h.audit sudo-1.6.9p4/sudo.h
|
||||
--- sudo-1.6.9p4/sudo.h.audit 2008-01-07 19:52:41.000000000 +0100
|
||||
+++ sudo-1.6.9p4/sudo.h 2008-01-07 19:52:41.000000000 +0100
|
||||
@@ -23,6 +23,8 @@
|
||||
#ifndef _SUDO_SUDO_H
|
||||
#define _SUDO_SUDO_H
|
||||
|
||||
+#include <config.h>
|
||||
+
|
||||
#include <pathnames.h>
|
||||
#include <limits.h>
|
||||
#include "compat.h"
|
||||
@@ -274,4 +276,10 @@ extern int sudo_mode;
|
||||
extern int errno;
|
||||
#endif
|
||||
+#if defined(WITH_AUDIT) && defined(HAVE_LIBCAP)
|
||||
+# include <sys/prctl.h>
|
||||
+# include <sys/capability.h>
|
||||
|
||||
+#ifdef WITH_AUDIT
|
||||
+extern int audit_fd;
|
||||
+extern void audit_help_open (void);
|
||||
+extern void audit_logger (int, const char *, int);
|
||||
+#endif
|
||||
|
||||
#include "sudo.h"
|
||||
|
||||
@@ -101,22 +105,55 @@ set_perms(perm)
|
||||
if (setresuid(user_uid, user_uid, user_uid))
|
||||
err(1, "setresuid(user_uid, user_uid, user_uid)");
|
||||
break;
|
||||
-
|
||||
+
|
||||
+ case PERM_FULL_RUNAS:
|
||||
+#if defined(WITH_AUDIT) && defined(HAVE_LIBCAP)
|
||||
+ { /* BEGIN CAP BLOCK */
|
||||
+ cap_t new_caps;
|
||||
+ cap_value_t cap_list[] = { CAP_AUDIT_WRITE };
|
||||
+
|
||||
+ if (runas_pw->pw_uid != ROOT_UID) {
|
||||
+ new_caps = cap_init ();
|
||||
+ if (!new_caps)
|
||||
+ err(1, "Error initing capabilities, aborting.\n");
|
||||
+
|
||||
+ if(cap_set_flag(new_caps, CAP_PERMITTED, 1, cap_list, CAP_SET) ||
|
||||
+ cap_set_flag(new_caps, CAP_EFFECTIVE, 1, cap_list, CAP_SET)) {
|
||||
+ err(1, "Error setting capabilities, aborting\n");
|
||||
+ }
|
||||
+
|
||||
+ if (prctl(PR_SET_KEEPCAPS, 1, 0, 0, 0))
|
||||
+ err(1, "Error setting KEEPCAPS, aborting\n");
|
||||
+ }
|
||||
+#endif
|
||||
+ /* headed for exec(), assume euid == ROOT_UID */
|
||||
+ runas_setup ();
|
||||
+ if (setresuid(def_stay_setuid ?
|
||||
+ user_uid : runas_pw->pw_uid,
|
||||
+ runas_pw->pw_uid, runas_pw->pw_uid))
|
||||
+ err(1, "unable to change to runas uid");
|
||||
+
|
||||
+#if defined(WITH_AUDIT) && defined(HAVE_LIBCAP)
|
||||
+ if (runas_pw->pw_uid != ROOT_UID) {
|
||||
+ if (prctl(PR_SET_KEEPCAPS, 0, 0, 0, 0) < 0)
|
||||
+ err(1, "Error resetting KEEPCAPS, aborting\n");
|
||||
+
|
||||
+ if (cap_set_proc(new_caps))
|
||||
+ err(1, "Error dropping capabilities, aborting\n");
|
||||
+
|
||||
+ if (cap_free (new_caps))
|
||||
+ err(1, "Error freeing caps\n");
|
||||
+ }
|
||||
+ } /* END CAP BLOCK */
|
||||
+#endif
|
||||
+ break;
|
||||
+
|
||||
case PERM_RUNAS:
|
||||
(void) setresgid(-1, runas_pw->pw_gid, -1);
|
||||
if (setresuid(-1, runas_pw->pw_uid, -1))
|
||||
err(1, "unable to change to runas uid");
|
||||
break;
|
||||
|
||||
- case PERM_FULL_RUNAS:
|
||||
- /* headed for exec(), assume euid == ROOT_UID */
|
||||
- runas_setup();
|
||||
- if (setresuid(def_stay_setuid ?
|
||||
- user_uid : runas_pw->pw_uid,
|
||||
- runas_pw->pw_uid, runas_pw->pw_uid))
|
||||
- err(1, "unable to change to runas uid");
|
||||
- break;
|
||||
-
|
||||
case PERM_SUDOERS:
|
||||
/* assume euid == ROOT_UID, ruid == user */
|
||||
if (setresgid(-1, SUDOERS_GID, -1))
|
||||
#endif /* _SUDO_SUDO_H */
|
||||
|
||||
Loading…
Reference in New Issue
Block a user