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50 lines
1.6 KiB
Bash
Executable File
50 lines
1.6 KiB
Bash
Executable File
#!/bin/sh
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# $Revision: 261 $
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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 if privileged files calling chroot() function call also chdir() function
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# Based on ideas found at http://people.redhat.com/sgrubb/security/
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. lib/misc/stdio
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. lib/misc/privileged
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. lib/misc/binary
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privileged_chroot_init () {
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stdio_message_log "privileged_chroot" "Starting at: `date`"
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}
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privileged_chroot_main () {
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privileged_list | while read filetype filename usergroupid
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do
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match="`binary_matches_function "${filename}" "chroot"`"
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if [ $match -eq 1 ]
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then
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if [ "`binary_matches_function "${filename}" "chdir"`" -ne 1 ]
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then
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stdio_message_warn "privileged_chroot" "${filetype} ${filename} (${usergroupid}) and may use chroot() unsafely - no chdir() call"
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fi
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fi
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done
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}
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privileged_chroot_fini () {
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stdio_message_log "privileged_chroot" "Ending at: `date`"
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}
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