diff -r 000000000000 -r fe3130d22800 security.d/chk_plussigns --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/security.d/chk_plussigns Wed Jan 14 21:12:35 2009 +0100 @@ -0,0 +1,92 @@ +#!/bin/bash +# +# $Id$ +# +############################################################################# +# Copyright (C) 2005 +# +# Michiel Broek +# Beekmansbos 10 +# 1971 BV IJmuiden +# the Netherlands +# +# This file is part of SlackSecCheckSripts. +# +# This package 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, or (at your option) any +# later version. +# +# SlackSecCheckSripts 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 MBSE BBS; see the file COPYING. If not, write to the Free +# Software Foundation, 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. +############################################################################# + + +PATH=/sbin:/usr/sbin:/bin:/usr/bin + +umask 077 +TZ=UTC; export TZ +LANG=C; export LANG + +MP=/etc/passwd +SP=/etc/shadow + +SECUREDIR=`mktemp -d /tmp/_securedir.XXXXXX` || exit 1 + +trap "/bin/rm -rf $SECUREDIR ; exit 0" EXIT INT QUIT PIPE + +if ! cd "$SECUREDIR"; then + echo "Can not cd to $SECUREDIR". + exit 1 +fi + +MPBYPATH=secure1.$$ +OUTPUT=secure2.$$ + +# These are used several times. +# +awk -F: '{ print $1 " " $6 }' $MP | sort -k2 > $MPBYPATH + + +# Files that should not have + signs. +# +list="/etc/hosts.equiv /etc/hosts.lpd" +for f in $list ; do + if [ -f $f ] && egrep '\+' $f > /dev/null ; then + printf "\nPlus sign in $f file.\n" + fi +done + +# Check for special users with .rhosts files. Only root and toor should +# have .rhosts files. Also, .rhosts files should not have plus signs. +awk -F: '$1 != "root" && $1 != "toor" && ($3 < 100 || $1 == "ftp" || $1 == "uucp") \ + { print $1 " " $6 }' $MP | + sort -k2 | + while read uid homedir; do + if [ -f ${homedir}/.rhosts ] ; then + rhost=`/bin/ls -ldg ${homedir}/.rhosts` + printf -- "$uid: $rhost\n" + fi + done > $OUTPUT +if [ -s $OUTPUT ] ; then + printf "\nChecking for special users with .rhosts files.\n" + cat $OUTPUT +fi +while read uid homedir; do + if [ -f ${homedir}/.rhosts -a -r ${homedir}/.rhosts ] && \ + cat ${homedir}/.rhosts | egrep '\+' > /dev/null ; then + printf -- "$uid: + in .rhosts file.\n" + fi +done < $MPBYPATH > $OUTPUT +if [ -s $OUTPUT ] ; then + printf "\nChecking .rhosts files syntax.\n" + cat $OUTPUT +fi + +