/usr/lib/tiger/scripts/check_netrc is in tiger 1:3.2.3-12.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 | #!/bin/sh
#
# tiger - A UN*X security checking system
# Copyright (C) 1993 Douglas Lee Schales, David K. Hess, David R. Safford
#
# This program 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.
#
# This program 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.
#
# Please see the file `COPYING' for the complete copyright notice.
#
# check_netrc - 06/14/93
#
# Checks if users's netrc files are insecurely configured. This includes
# complaining if users hold netrc files or if they are a a symbolic link
# or directory.
#
# 11/21/2004 jfs Quoted homedir usage
# 08/14/2003 jfs Added OUTPUTMETHOD to dependancies
# 08/08/2003 jfs Improved temporary file creation.
# 07/25/2002 jfs Added a sanity check for password files
# 04/28/93 dls Added '-L' option to 'ls' to get the permissions from the
# file instead of the symbolic link.
#
#-----------------------------------------------------------------------------
#
TigerInstallDir="/usr/lib/tiger"
#
# 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 OUTPUTMETHOD || exit 1
haveallfiles BASEDIR WORKDIR || exit 1
haveallvars TESTLINK HOSTNAME || exit 1
echo "--CONFIG-- [init003c] $0: Configuration ok..."
exit 0
}
#------------------------------------------------------------------------
echo
echo "# Performing check of .netrc files..."
haveallcmds AWK CAT GEN_PASSWD_SETS JOIN LS RM OUTPUTMETHOD || exit 1
haveallfiles BASEDIR WORKDIR || exit 1
safe_temp "$WORKDIR/pass.list.$$" "$WORKDIR/home.hosts.$$"
trap 'delete $WORKDIR/pass.list.$$ $WORKDIR/home.hosts.$$ ; exit 1' 1 2 3 15
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
message WARN nrc005w "" "User $user has a .netrc file"
check_file $user "$homedir/.netrc"
fi
}
done
}
saveifs="$IFS"
{
if [ -n "$Tiger_PasswdFiles" ]; then
[ -f $Tiger_PasswdFiles ] && $CAT "$Tiger_PasswdFiles" > $WORKDIR/pass.list.$$
else
$GEN_PASSWD_SETS $WORKDIR/pass.list.$$
fi
}
[ -r $WORKDIR/pass.list.$$ ] && {
while read passwd_set
do
echo
echo "# Checking accounts from `$CAT $passwd_set.src`..."
$AWK -F: '{print $1, $6}' $passwd_set |
$BASEDIR/util/${GETFSHOST:=getfs-std} > $WORKDIR/home.hosts.$$
$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
|