autonomic-cooperative/unix-privesc-check
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Imported Upstream version 1.4~svn361

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Devon Kearns
2012-12-20 15:42:13 -07:00
commit a75bafe602
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lib/checks/ssh_key Executable file
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#!/bin/sh
# $Revision: 254 $
#
# 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 of the License, 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.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
#
# (c) Tim Brown, 2012
# <mailto:timb@nth-dimension.org.uk>
# <http://www.nth-dimension.org.uk/> / <http://www.machine.org.uk/>
#
# List unencrypted SSH client private keys
. lib/misc/file
. lib/misc/group
. lib/misc/stdio
ssh_key_init () {
stdio_message_log "ssh_key" "Starting at: `date`"
}
ssh_key_permissions () {
filename="${1}"
file_show_non_symlink_perms " ${filename}$" | while read filename permissions userid groupid
do
case "${permissions}" in
???????r??)
stdio_message_warn "ssh_key" "key ${filename} is owned by user ${userid} (group ${groupid}) and is world-readable (${permissions})"
;;
????r?????)
if [ "`group_is_in_group_name \"${groupid}\"`" -eq 1 ]
then
stdio_message_warn "ssh_key" "key ${filename} is owned by user ${userid} (group ${groupid}: YOU) and is group-readable (${permissions})"
else
stdio_message_log "ssh_key" "key ${filename} is owned by user ${userid} (group ${groupid}) and is group-readable (${permissions})"
fi
;;
esac
done
}
ssh_key_main () {
# TODO we should expand this list
# * parse the local SSH server configuration file /etc/ssh/ssh_config
# and add to the pattern the value of IdentityFile option
# * list files in home directories' .ssh/ and add to pattern list the
# ones with and without .pub extension
for pattern in "*id_dsa*" "*id_rsa*"
do
file_list_by_filename "${pattern}" | while read filename
do
ssh_key_permissions "${filename}"
if [ "`file_matches_string "${filename}" "ENCRYPTED"`" -ne 1 ]
then
stdio_message_warn "ssh_key" "${filename} is unencrypted"
else
stdio_message_log "ssh_key" "${filename} is encrypted"
fi
done
done
}
ssh_key_fini () {
stdio_message_log "ssh_key" "Ending at: `date`"
}