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|
#!/bin/sh
#
# tiger - A UN*X security checking system
# Copyright (C) 1993 Douglas Lee Schales, David K. Hess, David R. Safford
#
# Please see the file `COPYING' for the complete copyright notice.
#
# check_netrc - 06/14/93
#
# 04/28/93 dls Added '-L' option to 'ls' to get the permissions from the
# file instead of the symbolic link.
#
# Complain if the .netrc is a symbolic link or directory.
#
#-----------------------------------------------------------------------------
#
TigerInstallDir='.'
#
# Set default base directory.
# Order or preference:
# -B option
# TIGERHOMEDIR environment variable
# TigerInstallDir installed location
#
basedir=${TIGERHOMEDIR:=$TigerInstallDir}
for parm
do
case $parm in
-B) basedir=$2; break;;
esac
done
#
# Verify that a config file exists there, and if it does
# source it.
#
[ ! -r $basedir/config ] && {
echo "--ERROR-- [init002e] No 'config' file in \`$basedir'."
exit 1
}
. $basedir/config
. $BASEDIR/initdefs
#
# If run in test mode (-t) this will verify that all required
# elements are set.
#
[ "$Tiger_TESTMODE" = 'Y' ] && {
haveallcmds AWK CAT GEN_PASSWD_SETS JOIN LS RM || exit 1
haveallfiles BASEDIR WORKDIR || exit 1
haveallvars TESTLINK HOSTNAME || exit 1
echo "--CONFIG-- [init003c] $0: Configuration ok..."
exit 0
}
#------------------------------------------------------------------------
echo
echo "# Performing check of .netrc files..."
haveallcmds AWK CAT GEN_PASSWD_SETS JOIN LS RM || exit 1
haveallfiles BASEDIR WORKDIR || exit 1
haveallvars TESTLINK HOSTNAME || exit 1
check_file()
{
user=$1
file=$2
$AWK '
BEGIN {
LINE="";
}
/[ \t]*machine/ {
print LINE;
LINE="$0";
}
{
LINE=LINE " " $0;
}
END {
print LINE;
}
' < $file |
$AWK '
BEGIN {
BAD=0;
}
{
username="";
password="";
for(i=0;i<NF;i++){
if($i == "login"){
i++;
username=$i;
}
else if($i == "password"){
i++;
password=$i;
}
}
if(username != "ftp" && username != "anonymous" && username != "")
if(password != "")
BAD=1;
}
END {
if(BAD == 1)
exit 1;
else
exit 0;
}
' || {
getpermit $file | {
read _f owner group ur uw ux gr gw gx or ow ox suid sgid stk
if [ "$gr$or" != "00" ]; then
message FAIL nrc001f "" "User $user's .netrc file is readable and contains passwords for non-anonymous ftp accounts."
else
message WARN nrc002w "" "User $user's .netrc file contains passwords for non-anonymous ftp accounts."
fi
}
}
}
process_passwd()
{
while read user homedir host
do
[ "$host" = "$HOSTNAME" -a -r "$homedir/.netrc" ] && {
if [ $TESTLINK $homedir/.netrc ]; then
message WARN nrc003w "" "User $user's .netrc file is a symbolic link:"
$LS -l $homedir/.netrc
$LS $LSGROUP $LSLINK $homedir/.netrc
[ -s $homedir/.netrc ] &&
check_file $user $homedir/.netrc
elif [ -d $homedir/.netrc ]; then
message ALERT nrc004a "" "User $user's .netrc file is a directory:"
$LS $LSGROUP -Rla $homedir/.netrc
echo
else
check_file $user $homedir/.netrc
fi
}
done
}
saveifs="$IFS"
{
if [ -n "$Tiger_PasswdFiles" ]; then
$CAT "$Tiger_PasswdFiles" > $WORKDIR/pass.list.$$
else
$GEN_PASSWD_SETS $WORKDIR/pass.list.$$
fi
}
while read passwd_set
do
echo
echo "# Checking accounts from `$CAT $passwd_set.src`..."
$AWK -F: '{print $1, $6}' $passwd_set |
$BASEDIR/util/${GETFSHOST:=getfs-std} > $WORKDIR/home.hosts.$$
$AWK -F: '{printf("%s %s\n", $1, $6); }' $passwd_set |
$JOIN -o 1.1 1.2 2.3 - $WORKDIR/home.hosts.$$ |
process_passwd
[ ! -n "$Tiger_PasswdFiles" ] && delete $passwd_set $passwd_set.src
delete $WORKDIR/home.hosts.$$
done < $WORKDIR/pass.list.$$ |
$OUTPUTMETHOD
delete $WORKDIR/pass.list.$$
#
exit 0
#
exit 0
#
exit 0
|
