add configuration file for security, as security.conf.
the file allows each action taken by security to be turned on or off.
This commit is contained in:
mrg
parent
016b324a94
commit
a9efb63860
824
etc/security
824
etc/security
@ -1,6 +1,6 @@
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#!/bin/sh -
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#
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# $NetBSD: security,v 1.14 1996/05/22 00:51:08 mrg Exp $
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# $NetBSD: security,v 1.15 1997/01/05 11:46:12 mrg Exp $
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# from: @(#)security 8.1 (Berkeley) 6/9/93
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#
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@ -8,57 +8,77 @@ PATH=/sbin:/usr/sbin:/bin:/usr/bin
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umask 077
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ERR=/tmp/_secure1.$$
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TMP1=/tmp/_secure2.$$
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TMP2=/tmp/_secure3.$$
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TMP3=/tmp/_secure4.$$
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LIST=/tmp/_secure5.$$
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OUTPUT=/tmp/_secure6.$$
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if [ -s /etc/security.conf ]; then
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. /etc/security.conf
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fi
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trap 'rm -f $ERR $TMP1 $TMP2 $TMP3 $LIST $OUTPUT' 0
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SECUREDIR=/tmp/_securedir.$$
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if ! mkdir $SECUREDIR; then
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echo can not create $SECUREDIR.
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exit 1
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fi
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if ! cd $SECUREDIR; then
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echo can not chdir to $SECUREDIR.
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exit 1
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fi
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ERR=secure1.$$
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TMP1=secure2.$$
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TMP2=secure3.$$
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TMP3=secure4.$$
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LIST=secure5.$$
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OUTPUT=secure6.$$
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trap 'rm -rf $SECUREDIR' 0
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MP=/etc/master.passwd
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# this is used several times.
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awk -F: '{ print $1 " " $3 }' $MP | sort -n +1 > $TMP1
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# Check the master password file syntax.
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MP=/etc/master.passwd
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awk -F: '{
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if ($0 ~ /^[ ]*$/) {
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printf("Line %d is a blank line.\n", NR);
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next;
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}
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if (NF != 10)
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printf("Line %d has the wrong number of fields.\n", NR);
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if ($1 !~ /^[A-Za-z0-9]*$/)
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printf("Login %s has non-alphanumeric characters.\n", $1);
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if (length($1) > 8)
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printf("Login %s has more than 8 characters.\n", $1);
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if ($2 == "")
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printf("Login %s has no password.\n", $1);
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if (length($2) != 13 && $2 != "" && ($10 ~ /.*sh$/ || $10 == ""))
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printf("Login %s is off but still has a valid shell.\n", $1);
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if ($3 == 0 && $1 != "root" && $1 != "toor")
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printf("Login %s has a user id of 0.\n", $1);
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if ($3 < 0)
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printf("Login %s has a negative user id.\n", $1);
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if ($4 < 0)
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printf("Login %s has a negative group id.\n", $1);
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}' < $MP > $OUTPUT
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if [ -s $OUTPUT ] ; then
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printf "\nChecking the $MP file:\n"
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cat $OUTPUT
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fi
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if [ X"$check_passwd" = XYES ]; then
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awk -F: '{
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if ($0 ~ /^[ ]*$/) {
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printf("Line %d is a blank line.\n", NR);
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next;
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}
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if (NF != 10)
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printf("Line %d has the wrong number of fields.\n", NR);
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if ($1 !~ /^[A-Za-z0-9]*$/)
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printf("Login %s has non-alphanumeric characters.\n", $1);
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if (length($1) > 8)
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printf("Login %s has more than 8 characters.\n", $1);
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if ($2 == "")
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printf("Login %s has no password.\n", $1);
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if (length($2) != 13 && $2 != "" && ($10 ~ /.*sh$/ || $10 == ""))
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printf("Login %s is off but still has a valid shell.\n", $1);
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if ($3 == 0 && $1 != "root" && $1 != "toor")
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printf("Login %s has a user id of 0.\n", $1);
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if ($3 < 0)
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printf("Login %s has a negative user id.\n", $1);
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if ($4 < 0)
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printf("Login %s has a negative group id.\n", $1);
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}' < $MP > $OUTPUT
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if [ -s $OUTPUT ] ; then
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printf "\nChecking the $MP file:\n"
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cat $OUTPUT
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fi
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awk -F: '{ print $1 }' $MP | sort | uniq -d > $OUTPUT
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if [ -s $OUTPUT ] ; then
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printf "\n$MP has duplicate user names.\n"
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column $OUTPUT
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fi
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awk -F: '{ print $1 }' $MP | sort | uniq -d > $OUTPUT
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if [ -s $OUTPUT ] ; then
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printf "\n$MP has duplicate user names.\n"
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column $OUTPUT
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fi
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awk -F: '{ print $1 " " $3 }' $MP | sort -n +1 | tee $TMP1 |
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uniq -d -f 1 | awk '{ print $2 }' > $TMP2
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if [ -s $TMP2 ] ; then
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printf "\n$MP has duplicate user id's.\n"
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while read uid; do
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grep -w $uid $TMP1
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done < $TMP2 | column
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< $TMP1 uniq -d -f 1 | awk '{ print $2 }' > $TMP2
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if [ -s $TMP2 ] ; then
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printf "\n$MP has duplicate user id's.\n"
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while read uid; do
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grep -w $uid $TMP1
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done < $TMP2 | column
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fi
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fi
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# Backup the master password file; a special case, the normal backup
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@ -80,401 +100,419 @@ else
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fi
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# Check the group file syntax.
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GRP=/etc/group
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awk -F: '{
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if ($0 ~ /^[ ]*$/) {
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printf("Line %d is a blank line.\n", NR);
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next;
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}
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if (NF != 4)
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printf("Line %d has the wrong number of fields.\n", NR);
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if ($1 !~ /^[A-za-z0-9]*$/)
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printf("Group %s has non-alphanumeric characters.\n", $1);
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if (length($1) > 8)
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printf("Group %s has more than 8 characters.\n", $1);
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if ($3 !~ /[0-9]*/)
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printf("Login %s has a negative group id.\n", $1);
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}' < $GRP > $OUTPUT
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if [ -s $OUTPUT ] ; then
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printf "\nChecking the $GRP file:\n"
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cat $OUTPUT
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fi
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if [ X"$check_group" = XYES ]; then
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GRP=/etc/group
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awk -F: '{
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if ($0 ~ /^[ ]*$/) {
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printf("Line %d is a blank line.\n", NR);
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next;
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}
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if (NF != 4)
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printf("Line %d has the wrong number of fields.\n", NR);
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if ($1 !~ /^[A-za-z0-9]*$/)
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printf("Group %s has non-alphanumeric characters.\n", $1);
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if (length($1) > 8)
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printf("Group %s has more than 8 characters.\n", $1);
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if ($3 !~ /[0-9]*/)
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printf("Login %s has a negative group id.\n", $1);
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}' < $GRP > $OUTPUT
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if [ -s $OUTPUT ] ; then
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printf "\nChecking the $GRP file:\n"
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cat $OUTPUT
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fi
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awk -F: '{ print $1 }' $GRP | sort | uniq -d > $OUTPUT
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if [ -s $OUTPUT ] ; then
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printf "\n$GRP has duplicate group names.\n"
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column $OUTPUT
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awk -F: '{ print $1 }' $GRP | sort | uniq -d > $OUTPUT
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if [ -s $OUTPUT ] ; then
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printf "\n$GRP has duplicate group names.\n"
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column $OUTPUT
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fi
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fi
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# Check for root paths, umask values in startup files.
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# The check for the root paths is problematical -- it's likely to fail
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# in other environments. Once the shells have been modified to warn
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# of '.' in the path, the path tests should go away.
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> $OUTPUT
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rhome=/root
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umaskset=no
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list="/etc/csh.cshrc /etc/csh.login ${rhome}/.cshrc ${rhome}/.login"
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for i in $list ; do
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if [ -f $i ] ; then
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if egrep umask $i > /dev/null ; then
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umaskset=yes
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fi
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egrep umask $i |
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awk '$2 % 100 < 20 \
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{ print "Root umask is group writeable" }
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$2 % 10 < 2 \
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{ print "Root umask is other writeable" }' >> $OUTPUT
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/bin/csh -f -s << end-of-csh > /dev/null 2>&1
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unset path
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source $i
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/bin/ls -ldgT \$path > $TMP1
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if [ X"$check_rootdotfiles" = XYES ]; then
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cp /dev/null $OUTPUT
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rhome=`csh -fc "echo ~root"`
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umaskset=no
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list="/etc/csh.cshrc /etc/csh.login ${rhome}/.cshrc ${rhome}/.login"
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for i in $list ; do
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if [ -f $i ] ; then
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if egrep umask $i > /dev/null ; then
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umaskset=yes
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fi
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egrep umask $i |
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awk '$2 % 100 < 20 \
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{ print "Root umask is group writeable" }
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$2 % 10 < 2 \
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{ print "Root umask is other writeable" }' >> $OUTPUT
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/bin/csh -f -s << end-of-csh > /dev/null 2>&1
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unset path
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source $i
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/bin/ls -ldgT \$path > $TMP1
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end-of-csh
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awk '{
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if ($10 ~ /^\.$/) {
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print "The root path includes .";
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next;
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}
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}
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$1 ~ /^d....w/ \
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{ print "Root path directory " $10 " is group writeable." } \
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$1 ~ /^d.......w/ \
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{ print "Root path directory " $10 " is other writeable." }' \
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< $TMP1 >> $OUTPUT
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fi
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done
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if [ $umaskset = "no" -o -s $OUTPUT ] ; then
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printf "\nChecking root csh paths, umask values:\n$list\n"
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if [ -s $OUTPUT ]; then
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cat $OUTPUT
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fi
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if [ $umaskset = "no" ] ; then
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printf "\nRoot csh startup files do not set the umask.\n"
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fi
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fi
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> $OUTPUT
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rhome=/root
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umaskset=no
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list="${rhome}/.profile"
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for i in $list; do
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if [ -f $i ] ; then
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if egrep umask $i > /dev/null ; then
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umaskset=yes
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awk '{
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if ($10 ~ /^\.$/) {
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print "The root path includes .";
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next;
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}
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}
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$1 ~ /^d....w/ \
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{ print "Root path directory " $10 " is group writeable." } \
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$1 ~ /^d.......w/ \
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{ print "Root path directory " $10 " is other writeable." }' \
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< $TMP1 >> $OUTPUT
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fi
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egrep umask $i |
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awk '$2 % 100 < 20 \
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{ print "Root umask is group writeable" } \
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$2 % 10 < 2 \
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{ print "Root umask is other writeable" }' >> $OUTPUT
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/bin/sh << end-of-sh > /dev/null 2>&1
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PATH=
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. $i
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list=\`echo \$PATH | /usr/bin/sed -e 's/:/ /g'\`
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/bin/ls -ldgT \$list > $TMP1
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end-of-sh
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awk '{
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if ($10 ~ /^\.$/) {
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print "The root path includes .";
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next;
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}
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}
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$1 ~ /^d....w/ \
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{ print "Root path directory " $10 " is group writeable." } \
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$1 ~ /^d.......w/ \
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{ print "Root path directory " $10 " is other writeable." }' \
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< $TMP1 >> $OUTPUT
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done
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if [ $umaskset = "no" -o -s $OUTPUT ] ; then
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printf "\nChecking root csh paths, umask values:\n$list\n"
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if [ -s $OUTPUT ]; then
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cat $OUTPUT
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fi
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if [ $umaskset = "no" ] ; then
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printf "\nRoot csh startup files do not set the umask.\n"
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fi
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fi
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fi
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done
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if [ $umaskset = "no" -o -s $OUTPUT ] ; then
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printf "\nChecking root sh paths, umask values:\n$list\n"
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if [ -s $OUTPUT ]; then
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cat $OUTPUT
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fi
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if [ $umaskset = "no" ] ; then
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printf "\nRoot sh startup files do not set the umask.\n"
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cp /dev/null $OUTPUT
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rhome=/root
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umaskset=no
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list="${rhome}/.profile"
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for i in $list; do
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if [ -f $i ] ; then
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if egrep umask $i > /dev/null ; then
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umaskset=yes
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fi
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egrep umask $i |
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awk '$2 % 100 < 20 \
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{ print "Root umask is group writeable" } \
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$2 % 10 < 2 \
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{ print "Root umask is other writeable" }' >> $OUTPUT
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/bin/sh << end-of-sh > /dev/null 2>&1
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PATH=
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. $i
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list=\`echo \$PATH | /usr/bin/sed -e 's/:/ /g'\`
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/bin/ls -ldgT \$list > $TMP1
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end-of-sh
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awk '{
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if ($10 ~ /^\.$/) {
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print "The root path includes .";
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next;
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}
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}
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$1 ~ /^d....w/ \
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{ print "Root path directory " $10 " is group writeable." } \
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$1 ~ /^d.......w/ \
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{ print "Root path directory " $10 " is other writeable." }' \
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< $TMP1 >> $OUTPUT
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fi
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done
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if [ $umaskset = "no" -o -s $OUTPUT ] ; then
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printf "\nChecking root sh paths, umask values:\n$list\n"
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if [ -s $OUTPUT ]; then
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cat $OUTPUT
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fi
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if [ $umaskset = "no" ] ; then
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printf "\nRoot sh startup files do not set the umask.\n"
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fi
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fi
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fi
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# Root and uucp should both be in /etc/ftpusers.
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if egrep root /etc/ftpusers > /dev/null ; then
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:
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else
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printf "\nRoot not listed in /etc/ftpusers file.\n"
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fi
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if egrep uucp /etc/ftpusers > /dev/null ; then
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:
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else
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printf "\nUucp not listed in /etc/ftpusers file.\n"
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if [ X"$check_ftpusers" = XYES ]; then
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if egrep root /etc/ftpusers > /dev/null ; then
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:
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else
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printf "\nRoot not listed in /etc/ftpusers file.\n"
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fi
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if egrep uucp /etc/ftpusers > /dev/null ; then
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:
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else
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printf "\nUucp not listed in /etc/ftpusers file.\n"
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fi
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fi
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# Uudecode should not be in the /etc/aliases file.
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if egrep 'uudecode|decode' /etc/aliases; then
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printf "\nThere is an entry for uudecode in the /etc/aliases file.\n"
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if [ X"$check_aliases" = XYES ]; then
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if egrep 'uudecode|decode' /etc/aliases; then
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printf "\nThere is an entry for uudecode in the /etc/aliases file.\n"
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fi
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fi
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# Files that should not have + signs.
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list="/etc/hosts.equiv /etc/hosts.lpd"
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for f in $list ; do
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if [ -f $f ] && egrep '\+' $f > /dev/null ; then
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printf "\nPlus sign in $f file.\n"
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fi
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done
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if [ X"$check_rhosts" = XYES ]; then
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list="/etc/hosts.equiv /etc/hosts.lpd"
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for f in $list ; do
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if [ -f $f ] && egrep '\+' $f > /dev/null ; then
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printf "\nPlus sign in $f file.\n"
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fi
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done
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# Check for special users with .rhosts files. Only root and toor should
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# have a .rhosts files. Also, .rhosts files should not plus signs.
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awk -F: '$1 != "root" && $1 != "toor" && \
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($3 < 100 || $1 == "ftp" || $1 == "uucp") \
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{ print $1 " " $6 }' /etc/passwd |
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while read uid homedir; do
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if [ -f ${homedir}/.rhosts ] ; then
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rhost=`ls -ldgT ${homedir}/.rhosts`
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printf "$uid: $rhost\n"
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# Check for special users with .rhosts files. Only root and toor should
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# have a .rhosts files. Also, .rhosts files should not have plus signs.
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awk -F: '$1 != "root" && $1 != "toor" && \
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($3 < 100 || $1 == "ftp" || $1 == "uucp") \
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{ print $1 " " $9 }' /etc/master.passwd |
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while read uid homedir; do
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if [ -f ${homedir}/.rhosts ] ; then
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rhost=`ls -ldgT ${homedir}/.rhosts`
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printf "$uid: $rhost\n"
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fi
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done > $OUTPUT
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if [ -s $OUTPUT ] ; then
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printf "\nChecking for special users with .rhosts files.\n"
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cat $OUTPUT
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fi
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done > $OUTPUT
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if [ -s $OUTPUT ] ; then
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printf "\nChecking for special users with .rhosts files.\n"
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cat $OUTPUT
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fi
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awk -F: '{ print $1 " " $6 }' /etc/passwd | \
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while read uid homedir; do
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if [ -f ${homedir}/.rhosts ] && \
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egrep '\+' ${homedir}/.rhosts > /dev/null ; then
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printf "$uid: + in .rhosts file.\n"
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awk -F: '{ print $1 " " $9 }' /etc/master.passwd | \
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while read uid homedir; do
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if [ -f ${homedir}/.rhosts ] && \
|
||||
egrep '\+' ${homedir}/.rhosts > /dev/null ; then
|
||||
printf "$uid: + in .rhosts file.\n"
|
||||
fi
|
||||
done > $OUTPUT
|
||||
if [ -s $OUTPUT ] ; then
|
||||
printf "\nChecking .rhosts files syntax.\n"
|
||||
cat $OUTPUT
|
||||
fi
|
||||
done > $OUTPUT
|
||||
if [ -s $OUTPUT ] ; then
|
||||
printf "\nChecking .rhosts files syntax.\n"
|
||||
cat $OUTPUT
|
||||
fi
|
||||
|
||||
# Check home directories. Directories should not be owned by someone else
|
||||
# or writeable.
|
||||
awk -F: '{ print $1 " " $6 }' /etc/passwd | \
|
||||
while read uid homedir; do
|
||||
if [ -d ${homedir}/ ] ; then
|
||||
file=`ls -ldgT ${homedir}`
|
||||
printf "$uid $file\n"
|
||||
if [ X"$check_homes" = XYES ]; then
|
||||
awk -F: '{ print $1 " " $9 }' /etc/master.passwd | \
|
||||
while read uid homedir; do
|
||||
if [ -d ${homedir}/ ] ; then
|
||||
file=`ls -ldgT ${homedir}`
|
||||
printf "$uid $file\n"
|
||||
fi
|
||||
done |
|
||||
awk '$1 != $4 && $4 != "root" \
|
||||
{ print "user " $1 " home directory is owned by " $4 }
|
||||
$2 ~ /^-....w/ \
|
||||
{ print "user " $1 " home directory is group writeable" }
|
||||
$2 ~ /^-.......w/ \
|
||||
{ print "user " $1 " home directory is other writeable" }' > $OUTPUT
|
||||
if [ -s $OUTPUT ] ; then
|
||||
printf "\nChecking home directories.\n"
|
||||
cat $OUTPUT
|
||||
fi
|
||||
done |
|
||||
awk '$1 != $4 && $4 != "root" \
|
||||
{ print "user " $1 " home directory is owned by " $4 }
|
||||
$2 ~ /^-....w/ \
|
||||
{ print "user " $1 " home directory is group writeable" }
|
||||
$2 ~ /^-.......w/ \
|
||||
{ print "user " $1 " home directory is other writeable" }' > $OUTPUT
|
||||
if [ -s $OUTPUT ] ; then
|
||||
printf "\nChecking home directories.\n"
|
||||
cat $OUTPUT
|
||||
fi
|
||||
|
||||
# Files that should not be owned by someone else or readable.
|
||||
list=".netrc .rhosts"
|
||||
awk -F: '{ print $1 " " $6 }' /etc/passwd | \
|
||||
while read uid homedir; do
|
||||
for f in $list ; do
|
||||
file=${homedir}/${f}
|
||||
if [ -f $file ] ; then
|
||||
printf "$uid $f `ls -ldgT $file`\n"
|
||||
fi
|
||||
done
|
||||
done |
|
||||
awk '$1 != $5 && $5 != "root" \
|
||||
{ print "user " $1 " " $2 " file is owned by " $5 }
|
||||
$3 ~ /^-...r/ \
|
||||
{ print "user " $1 " " $2 " file is group readable" }
|
||||
$3 ~ /^-......r/ \
|
||||
{ print "user " $1 " " $2 " file is other readable" }
|
||||
$3 ~ /^-....w/ \
|
||||
{ print "user " $1 " " $2 " file is group writeable" }
|
||||
$3 ~ /^-.......w/ \
|
||||
{ print "user " $1 " " $2 " file is other writeable" }' > $OUTPUT
|
||||
# Files that should not be owned by someone else or readable.
|
||||
list=".netrc .rhosts"
|
||||
awk -F: '{ print $1 " " $9 }' /etc/master.passwd | \
|
||||
while read uid homedir; do
|
||||
for f in $list ; do
|
||||
file=${homedir}/${f}
|
||||
if [ -f $file ] ; then
|
||||
printf "$uid $f `ls -ldgT $file`\n"
|
||||
fi
|
||||
done
|
||||
done |
|
||||
awk '$1 != $5 && $5 != "root" \
|
||||
{ print "user " $1 " " $2 " file is owned by " $5 }
|
||||
$3 ~ /^-...r/ \
|
||||
{ print "user " $1 " " $2 " file is group readable" }
|
||||
$3 ~ /^-......r/ \
|
||||
{ print "user " $1 " " $2 " file is other readable" }
|
||||
$3 ~ /^-....w/ \
|
||||
{ print "user " $1 " " $2 " file is group writeable" }
|
||||
$3 ~ /^-.......w/ \
|
||||
{ print "user " $1 " " $2 " file is other writeable" }' > $OUTPUT
|
||||
|
||||
# Files that should not be owned by someone else or writeable.
|
||||
list=".bashrc .cshrc .emacs .exrc .forward .klogin .login .logout \
|
||||
.profile .tcshrc"
|
||||
awk -F: '{ print $1 " " $6 }' /etc/passwd | \
|
||||
while read uid homedir; do
|
||||
for f in $list ; do
|
||||
file=${homedir}/${f}
|
||||
if [ -f $file ] ; then
|
||||
printf "$uid $f `ls -ldgT $file`\n"
|
||||
fi
|
||||
done
|
||||
done |
|
||||
awk '$1 != $5 && $5 != "root" \
|
||||
{ print "user " $1 " " $2 " file is owned by " $5 }
|
||||
$3 ~ /^-....w/ \
|
||||
{ print "user " $1 " " $2 " file is group writeable" }
|
||||
$3 ~ /^-.......w/ \
|
||||
{ print "user " $1 " " $2 " file is other writeable" }' >> $OUTPUT
|
||||
if [ -s $OUTPUT ] ; then
|
||||
printf "\nChecking dot files.\n"
|
||||
cat $OUTPUT
|
||||
# Files that should not be owned by someone else or writeable.
|
||||
list=".bashrc .cshrc .emacs .exrc .forward .klogin .login .logout \
|
||||
.profile .tcshrc .qmail"
|
||||
awk -F: '{ print $1 " " $9 }' /etc/master.passwd | \
|
||||
while read uid homedir; do
|
||||
for f in $list ; do
|
||||
file=${homedir}/${f}
|
||||
if [ -f $file ] ; then
|
||||
printf "$uid $f `ls -ldgT $file`\n"
|
||||
fi
|
||||
done
|
||||
done |
|
||||
awk '$1 != $5 && $5 != "root" \
|
||||
{ print "user " $1 " " $2 " file is owned by " $5 }
|
||||
$3 ~ /^-....w/ \
|
||||
{ print "user " $1 " " $2 " file is group writeable" }
|
||||
$3 ~ /^-.......w/ \
|
||||
{ print "user " $1 " " $2 " file is other writeable" }' >> $OUTPUT
|
||||
if [ -s $OUTPUT ] ; then
|
||||
printf "\nChecking dot files.\n"
|
||||
cat $OUTPUT
|
||||
fi
|
||||
fi
|
||||
|
||||
# Mailboxes should be owned by user and unreadable.
|
||||
ls -l /var/mail | sed 1d | \
|
||||
awk '$3 != $9 \
|
||||
{ print "user " $9 " mailbox is owned by " $3 }
|
||||
$1 != "-rw-------" \
|
||||
{ print "user " $9 " mailbox is " $1 ", group " $4 }' > $OUTPUT
|
||||
if [ -s $OUTPUT ] ; then
|
||||
printf "\nChecking mailbox ownership.\n"
|
||||
cat $OUTPUT
|
||||
if [ X"$check_varmail" = XYES ]; then
|
||||
ls -l /var/mail | sed 1d | \
|
||||
awk '$3 != $9 \
|
||||
{ print "user " $9 " mailbox is owned by " $3 }
|
||||
$1 != "-rw-------" \
|
||||
{ print "user " $9 " mailbox is " $1 ", group " $4 }' > $OUTPUT
|
||||
if [ -s $OUTPUT ] ; then
|
||||
printf "\nChecking mailbox ownership.\n"
|
||||
cat $OUTPUT
|
||||
fi
|
||||
fi
|
||||
|
||||
if [ -f /etc/exports ]; then
|
||||
# File systems should not be globally exported.
|
||||
awk '{
|
||||
readonly = 0;
|
||||
for (i = 2; i <= NF; ++i) {
|
||||
if ($i ~ /-ro/)
|
||||
readonly = 1;
|
||||
else if ($i !~ /^-/)
|
||||
next;
|
||||
}
|
||||
if (readonly)
|
||||
print "File system " $1 " globally exported, read-only."
|
||||
else
|
||||
print "File system " $1 " globally exported, read-write."
|
||||
}' < /etc/exports > $OUTPUT
|
||||
if [ -s $OUTPUT ] ; then
|
||||
printf "\nChecking for globally exported file systems.\n"
|
||||
cat $OUTPUT
|
||||
fi
|
||||
if [ X"$check_nfs" = XYES ]; then
|
||||
if [ -f /etc/exports ]; then
|
||||
# File systems should not be globally exported.
|
||||
awk '{
|
||||
readonly = 0;
|
||||
for (i = 2; i <= NF; ++i) {
|
||||
if ($i ~ /-ro/)
|
||||
readonly = 1;
|
||||
else if ($i !~ /^-/)
|
||||
next;
|
||||
}
|
||||
if (readonly)
|
||||
print "File system " $1 " globally exported, read-only."
|
||||
else
|
||||
print "File system " $1 " globally exported, read-write."
|
||||
}' < /etc/exports > $OUTPUT
|
||||
if [ -s $OUTPUT ] ; then
|
||||
printf "\nChecking for globally exported file systems.\n"
|
||||
cat $OUTPUT
|
||||
fi
|
||||
fi
|
||||
fi
|
||||
|
||||
# Display any changes in setuid files and devices.
|
||||
printf "\nChecking setuid files and devices:\n"
|
||||
(find / \( ! -fstype local -o -fstype fdesc -o -fstype kernfs \
|
||||
-o -fstype procfs \) -a -prune -o \
|
||||
\( -perm -u+s -o \( -perm -g+s -a ! -type d \) -o \
|
||||
! -type d -a ! -type f -a ! -type l -a \
|
||||
! -type s \) -print | \
|
||||
sort | sed -e 's/^/ls -ldgT /' | sh > $LIST) 2> $OUTPUT
|
||||
if [ X"$check_devices" = XYES ]; then
|
||||
printf "\nChecking setuid files and devices:\n"
|
||||
(find / \( ! -fstype local -o -fstype fdesc -o -fstype kernfs \
|
||||
-o -fstype procfs \) -a -prune -o \
|
||||
\( -perm -u+s -o \( -perm -g+s -a ! -type d \) -o \
|
||||
! -type d -a ! -type f -a ! -type l -a \
|
||||
! -type s \) -print | \
|
||||
sort | sed -e 's/^/ls -ldgT /' | sh > $LIST) 2> $OUTPUT
|
||||
|
||||
# Display any errors that occurred during system file walk.
|
||||
if [ -s $OUTPUT ] ; then
|
||||
printf "Setuid/device find errors:\n"
|
||||
cat $OUTPUT
|
||||
printf "\n"
|
||||
fi
|
||||
|
||||
# Display any changes in the setuid file list.
|
||||
egrep -v '^[bc]' $LIST > $TMP1
|
||||
if [ -s $TMP1 ] ; then
|
||||
# Check to make sure uudecode isn't setuid.
|
||||
if grep -w uudecode $TMP1 > /dev/null ; then
|
||||
printf "\nUudecode is setuid.\n"
|
||||
# Display any errors that occurred during system file walk.
|
||||
if [ -s $OUTPUT ] ; then
|
||||
printf "Setuid/device find errors:\n"
|
||||
cat $OUTPUT
|
||||
printf "\n"
|
||||
fi
|
||||
|
||||
CUR=/var/backups/setuid.current
|
||||
BACK=/var/backups/setuid.backup
|
||||
# Display any changes in the setuid file list.
|
||||
egrep -v '^[bc]' $LIST > $TMP1
|
||||
if [ -s $TMP1 ] ; then
|
||||
# Check to make sure uudecode isn't setuid.
|
||||
if grep -w uudecode $TMP1 > /dev/null ; then
|
||||
printf "\nUudecode is setuid.\n"
|
||||
fi
|
||||
|
||||
if [ -s $CUR ] ; then
|
||||
if cmp -s $CUR $TMP1 ; then
|
||||
:
|
||||
CUR=/var/backups/setuid.current
|
||||
BACK=/var/backups/setuid.backup
|
||||
|
||||
if [ -s $CUR ] ; then
|
||||
if cmp -s $CUR $TMP1 ; then
|
||||
:
|
||||
else
|
||||
> $TMP2
|
||||
join -110 -210 -v2 $CUR $TMP1 > $OUTPUT
|
||||
if [ -s $OUTPUT ] ; then
|
||||
printf "Setuid additions:\n"
|
||||
tee -a $TMP2 < $OUTPUT
|
||||
printf "\n"
|
||||
fi
|
||||
|
||||
join -110 -210 -v1 $CUR $TMP1 > $OUTPUT
|
||||
if [ -s $OUTPUT ] ; then
|
||||
printf "Setuid deletions:\n"
|
||||
tee -a $TMP2 < $OUTPUT
|
||||
printf "\n"
|
||||
fi
|
||||
|
||||
sort +9 $TMP2 $CUR $TMP1 | \
|
||||
sed -e 's/[ ][ ]*/ /g' | uniq -u > $OUTPUT
|
||||
if [ -s $OUTPUT ] ; then
|
||||
printf "Setuid changes:\n"
|
||||
column -t $OUTPUT
|
||||
printf "\n"
|
||||
fi
|
||||
|
||||
cp $CUR $BACK
|
||||
cp $TMP1 $CUR
|
||||
fi
|
||||
else
|
||||
> $TMP2
|
||||
join -110 -210 -v2 $CUR $TMP1 > $OUTPUT
|
||||
if [ -s $OUTPUT ] ; then
|
||||
printf "Setuid additions:\n"
|
||||
tee -a $TMP2 < $OUTPUT
|
||||
printf "\n"
|
||||
fi
|
||||
|
||||
join -110 -210 -v1 $CUR $TMP1 > $OUTPUT
|
||||
if [ -s $OUTPUT ] ; then
|
||||
printf "Setuid deletions:\n"
|
||||
tee -a $TMP2 < $OUTPUT
|
||||
printf "\n"
|
||||
fi
|
||||
|
||||
sort +9 $TMP2 $CUR $TMP1 | \
|
||||
sed -e 's/[ ][ ]*/ /g' | uniq -u > $OUTPUT
|
||||
if [ -s $OUTPUT ] ; then
|
||||
printf "Setuid changes:\n"
|
||||
column -t $OUTPUT
|
||||
printf "\n"
|
||||
fi
|
||||
|
||||
cp $CUR $BACK
|
||||
printf "Setuid additions:\n"
|
||||
column -t $TMP1
|
||||
printf "\n"
|
||||
cp $TMP1 $CUR
|
||||
fi
|
||||
else
|
||||
printf "Setuid additions:\n"
|
||||
column -t $TMP1
|
||||
printf "\n"
|
||||
cp $TMP1 $CUR
|
||||
fi
|
||||
fi
|
||||
|
||||
# Check for block and character disk devices that are readable or writeable
|
||||
# or not owned by root.operator.
|
||||
>$TMP1
|
||||
DISKLIST="dk fd hd hk hp jb kra ra rb rd rl rx rz sd up wd"
|
||||
for i in $DISKLIST; do
|
||||
egrep "^b.*/${i}[0-9][0-9]*[a-h]$" $LIST >> $TMP1
|
||||
egrep "^c.*/r${i}[0-9][0-9]*[a-h]$" $LIST >> $TMP1
|
||||
done
|
||||
# Check for block and character disk devices that are readable or writeable
|
||||
# or not owned by root.operator.
|
||||
>$TMP1
|
||||
DISKLIST="dk fd hd hk hp jb kra ra rb rd rl rx rz sd up wd xd xy"
|
||||
for i in $DISKLIST; do
|
||||
egrep "^b.*/${i}[0-9][0-9]*[a-p]$" $LIST >> $TMP1
|
||||
egrep "^c.*/r${i}[0-9][0-9]*[a-p]$" $LIST >> $TMP1
|
||||
done
|
||||
|
||||
awk '$3 != "root" || $4 != "operator" || $1 !~ /.rw-r-----/ \
|
||||
{ printf("Disk %s is user %s, group %s, permissions %s.\n", \
|
||||
$11, $3, $4, $1); }' < $TMP1 > $OUTPUT
|
||||
if [ -s $OUTPUT ] ; then
|
||||
printf "\nChecking disk ownership and permissions.\n"
|
||||
cat $OUTPUT
|
||||
printf "\n"
|
||||
fi
|
||||
awk '$3 != "root" || $4 != "operator" || $1 !~ /.rw-r-----/ \
|
||||
{ printf("Disk %s is user %s, group %s, permissions %s.\n", \
|
||||
$11, $3, $4, $1); }' < $TMP1 > $OUTPUT
|
||||
if [ -s $OUTPUT ] ; then
|
||||
printf "\nChecking disk ownership and permissions.\n"
|
||||
cat $OUTPUT
|
||||
printf "\n"
|
||||
fi
|
||||
|
||||
# Display any changes in the device file list.
|
||||
egrep '^[bc]' $LIST | sort +10 > $TMP1
|
||||
if [ -s $TMP1 ] ; then
|
||||
CUR=/var/backups/device.current
|
||||
BACK=/var/backups/device.backup
|
||||
# Display any changes in the device file list.
|
||||
egrep '^[bc]' $LIST | sort +10 > $TMP1
|
||||
if [ -s $TMP1 ] ; then
|
||||
CUR=/var/backups/device.current
|
||||
BACK=/var/backups/device.backup
|
||||
|
||||
if [ -s $CUR ] ; then
|
||||
if cmp -s $CUR $TMP1 ; then
|
||||
:
|
||||
if [ -s $CUR ] ; then
|
||||
if cmp -s $CUR $TMP1 ; then
|
||||
:
|
||||
else
|
||||
> $TMP2
|
||||
join -111 -211 -v2 $CUR $TMP1 > $OUTPUT
|
||||
if [ -s $OUTPUT ] ; then
|
||||
printf "Device additions:\n"
|
||||
tee -a $TMP2 < $OUTPUT
|
||||
printf "\n"
|
||||
fi
|
||||
|
||||
join -111 -211 -v1 $CUR $TMP1 > $OUTPUT
|
||||
if [ -s $OUTPUT ] ; then
|
||||
printf "Device deletions:\n"
|
||||
tee -a $TMP2 < $OUTPUT
|
||||
printf "\n"
|
||||
fi
|
||||
|
||||
# Report any block device change. Ignore character
|
||||
# devices, only the name is significant.
|
||||
cat $TMP2 $CUR $TMP1 | \
|
||||
sed -e '/^c/d' | \
|
||||
sort +10 | \
|
||||
sed -e 's/[ ][ ]*/ /g' | \
|
||||
uniq -u > $OUTPUT
|
||||
if [ -s $OUTPUT ] ; then
|
||||
printf "Block device changes:\n"
|
||||
column -t $OUTPUT
|
||||
printf "\n"
|
||||
fi
|
||||
|
||||
cp $CUR $BACK
|
||||
cp $TMP1 $CUR
|
||||
fi
|
||||
else
|
||||
> $TMP2
|
||||
join -111 -211 -v2 $CUR $TMP1 > $OUTPUT
|
||||
if [ -s $OUTPUT ] ; then
|
||||
printf "Device additions:\n"
|
||||
tee -a $TMP2 < $OUTPUT
|
||||
printf "\n"
|
||||
fi
|
||||
|
||||
join -111 -211 -v1 $CUR $TMP1 > $OUTPUT
|
||||
if [ -s $OUTPUT ] ; then
|
||||
printf "Device deletions:\n"
|
||||
tee -a $TMP2 < $OUTPUT
|
||||
printf "\n"
|
||||
fi
|
||||
|
||||
# Report any block device change. Ignore character
|
||||
# devices, only the name is significant.
|
||||
cat $TMP2 $CUR $TMP1 | \
|
||||
sed -e '/^c/d' | \
|
||||
sort +10 | \
|
||||
sed -e 's/[ ][ ]*/ /g' | \
|
||||
uniq -u > $OUTPUT
|
||||
if [ -s $OUTPUT ] ; then
|
||||
printf "Block device changes:\n"
|
||||
column -t $OUTPUT
|
||||
printf "\n"
|
||||
fi
|
||||
|
||||
cp $CUR $BACK
|
||||
printf "Device additions:\n"
|
||||
column -t $TMP1
|
||||
printf "\n"
|
||||
cp $TMP1 $CUR
|
||||
fi
|
||||
else
|
||||
printf "Device additions:\n"
|
||||
column -t $TMP1
|
||||
printf "\n"
|
||||
cp $TMP1 $CUR
|
||||
fi
|
||||
fi
|
||||
|
||||
@ -491,9 +529,10 @@ fi
|
||||
# the hacker can modify the tree specification to match the replaced binary.
|
||||
# For details on really protecting yourself against modified binaries, see
|
||||
# the mtree(8) manual page.
|
||||
if cd /etc/mtree; then
|
||||
if [ X"$check_mtree" = XYES ] && cd /etc/mtree; then
|
||||
(
|
||||
mtree -e -p / -f /etc/mtree/special > $OUTPUT
|
||||
if [ -s $OUTPUT ] ; then
|
||||
if [ -s $OUTPUT ]; then
|
||||
printf "\nChecking special files and directories.\n"
|
||||
cat $OUTPUT
|
||||
fi
|
||||
@ -508,16 +547,17 @@ if cd /etc/mtree; then
|
||||
cat $TMP1 >> $OUTPUT
|
||||
fi
|
||||
done
|
||||
if [ -s $OUTPUT ] ; then
|
||||
if [ -s $OUTPUT ]; then
|
||||
printf "\nChecking system binaries:\n"
|
||||
cat $OUTPUT
|
||||
fi
|
||||
)
|
||||
fi
|
||||
|
||||
# List of files that get backed up and checked for any modifications. Each
|
||||
# file is expected to have two backups, /var/backups/file.{current,backup}.
|
||||
# Any changes cause the files to rotate.
|
||||
if [ -s /etc/changelist ] ; then
|
||||
if [ X"$check_changelist" = XYES -a -s /etc/changelist ] ; then
|
||||
for file in `cat /etc/changelist`; do
|
||||
CUR=/var/backups/`basename $file`.current
|
||||
BACK=/var/backups/`basename $file`.backup
|
||||
|
||||
16
etc/security.conf
Normal file
16
etc/security.conf
Normal file
@ -0,0 +1,16 @@
|
||||
# $NetBSD: security.conf,v 1.1 1997/01/05 11:46:13 mrg Exp $
|
||||
#
|
||||
# see security.conf(5) for more information.
|
||||
|
||||
check_passwd=YES
|
||||
check_group=YES
|
||||
check_rootdotfiles=YES
|
||||
check_ftpusers=YES
|
||||
check_aliases=YES
|
||||
check_rhosts=YES
|
||||
check_homes=YES
|
||||
check_varmail=YES
|
||||
check_nfs=YES
|
||||
check_devices=YES
|
||||
check_mtree=YES
|
||||
check_changelist=YES
|
||||
Loading…
Reference in New Issue
Block a user