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https://gitlab.com/kalilinux/packages/unix-privesc-check.git
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75 lines
2.6 KiB
Plaintext
75 lines
2.6 KiB
Plaintext
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#!/bin/sh
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# $Revision: 284 $
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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#
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# (c) Tim Brown, 2012
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# <mailto:timb@nth-dimension.org.uk>
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# <http://www.nth-dimension.org.uk/> / <http://www.machine.org.uk/>
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#
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# Check for writable permission on home directories
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. lib/misc/file
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. lib/misc/group
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. lib/misc/passwd
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. lib/misc/permission
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. lib/misc/stdio
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homedirs_writable_init () {
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stdio_message_log "homedirs_writable" "Starting at: `date`"
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}
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homedirs_writable_main () {
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passwd_list | while read username
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do
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if [ "${username}" = "+" ]
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then
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continue
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fi
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homedir="`passwd_show_homedir "${username}"`"
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if [ -z "${homedir}" -o "${homedir}" = "/dev/null" ]
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then
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stdio_message_debug "homedirs_writable" "${username} has no home directory set"
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continue
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fi
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file_show_non_symlink_perms " ${homedir}$" | while read filename permissions userid groupid
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do
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case "${permissions}" in
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????????w?)
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if [ "`permission_is_world_writable_sticky_bit \"${permissions}\"`" -eq 1 ]
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then
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stdio_message_log "homedirs_writable" "${username} home directory ${filename} is owned by user ${userid} (group ${groupid}) and is world-writable with sticky bit (${permissions})"
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else
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stdio_message_warn "homedirs_writable" "${username} home directory ${filename} is owned by user ${userid} (group ${groupid}) and is world-writable (${permissions})"
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fi
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;;
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?????w????)
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if [ "`group_is_in_group_name \"${groupid}\"`" -eq 1 ]
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then
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stdio_message_warn "homedirs_writable" "${username} home directory ${filename} is owned by user ${userid} (group ${groupid}: YOU) and is group-writable (${permissions})"
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# TODO verify the case the owner, ${username}, is not within the group owner, ${groupid}
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else
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stdio_message_debug "homedirs_writable" "${username} home directory ${filename} is owned by user ${userid} (group ${groupid}) and is group-writable (${permissions})"
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fi
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;;
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esac
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done
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done
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}
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homedirs_writable_fini () {
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stdio_message_log "homedirs_writable" "Ending at: `date`"
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}
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