security.d/chk_setid

changeset 5
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child 11
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1 #!/bin/bash
2 #
3 # $Id$
4 #
5 #############################################################################
6 # Copyright (C) 2005-2007
7 #
8 # Michiel Broek <mbse@mbse.eu>
9 # Beekmansbos 10
10 # 1971 BV IJmuiden
11 # the Netherlands
12 #
13 # This file is part of SlackSecCheckSripts.
14 #
15 # This package is free software; you can redistribute it and/or modify it
16 # under the terms of the GNU General Public License as published by the
17 # Free Software Foundation; either version 2, or (at your option) any
18 # later version.
19 #
20 # SlackSecCheckSripts is distributed in the hope that it will be useful, but
21 # WITHOUT ANY WARRANTY; without even the implied warranty of
22 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
23 # General Public License for more details.
24 #
25 # You should have received a copy of the GNU General Public License
26 # along with MBSE BBS; see the file COPYING. If not, write to the Free
27 # Software Foundation, 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
28 #############################################################################
29
30 PATH=/sbin:/usr/sbin:/bin:/usr/bin
31
32 umask 077
33 TZ=UTC; export TZ
34 LANG=C; export LANG
35
36 SECUREDIR=`mktemp -d /tmp/_securedir.XXXXXX` || exit 1
37
38 trap "/bin/rm -rf $SECUREDIR ; exit 0" EXIT INT QUIT PIPE
39
40 if ! cd "$SECUREDIR"; then
41 echo "Can not cd to $SECUREDIR".
42 exit 1
43 fi
44
45 backup_dir=/var/cache/sscs
46 mkdir -p "$backup_dir"
47
48 CURR=${backup_dir}/setid.current
49 BACK=${backup_dir}/setid.backup
50 TMP1=$SECUREDIR/tmp1
51 TMP2=$SECUREDIR/tmp2
52 TMP3=$SECUREDIR/tmp3
53 FSS=`egrep ^\/dev\/ /etc/mtab | awk '{ print $2 }'`
54
55
56 if [ ! -f $CURR ]; then
57 # No database, install new database
58 find $FSS \( -mount \( -perm -u+s -a ! -type d \) -o \( -perm -g+s -a ! -type d \) \) -print0 | \
59 xargs -0 /bin/ls -ld --full-time | sort -k9 > $CURR
60 exit
61 fi
62
63 # Database is present, create temp database
64 #
65 find $FSS \( -mount \( -perm -u+s -a ! -type d \) -o \( -perm -g+s -a ! -type d \) \) -print0 | \
66 xargs -0 /bin/ls -ld --full-time | sort -k9 > $TMP1
67 changed=0
68
69 diff $TMP1 $CURR > $TMP2
70 if [ -s $TMP2 ]; then
71 egrep '>' $TMP2 > $TMP3
72 if [ -s $TMP3 ]; then
73 printf "\nOld or updated setuid or setgid files:\n"
74 cat $TMP3 | tr '>' ' '
75 fi
76 egrep '<' $TMP2 > $TMP3
77 if [ -s $TMP3 ]; then
78 printf "\nNew or updated setuid or setgid files:\n"
79 cat $TMP3 | tr '<' ' '
80 fi
81 changed=1
82 fi
83
84
85 # If changes were seen, update the database
86 #
87 if [ "$changed" == "1" ]; then
88 cat $CURR > $BACK
89 cat $TMP1 > $CURR
90 fi
91

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