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authorbrooks <brooks@FreeBSD.org>2010-11-13 00:40:43 +0000
committerbrooks <brooks@FreeBSD.org>2010-11-13 00:40:43 +0000
commit479b7f42883a475385c5a0203d82972be32f2bdb (patch)
tree1af23fa60f8e4b198022f866236556ba866c040d /etc/periodic
parent7b0aabca30b272cae8800569e8681db7f9b58c0d (diff)
downloadFreeBSD-src-479b7f42883a475385c5a0203d82972be32f2bdb.zip
FreeBSD-src-479b7f42883a475385c5a0203d82972be32f2bdb.tar.gz
Add an (off by default) check for negative permissions (where the
group on a object has less permissions that everyone). These permissions will not work reliably over NFS if you have more than 14 supplemental groups and are usually not what you mean. MFC after: 1 week
Diffstat (limited to 'etc/periodic')
-rwxr-xr-xetc/periodic/security/110.neggrpperm54
-rw-r--r--etc/periodic/security/Makefile1
2 files changed, 55 insertions, 0 deletions
diff --git a/etc/periodic/security/110.neggrpperm b/etc/periodic/security/110.neggrpperm
new file mode 100755
index 0000000..68d1e7b
--- /dev/null
+++ b/etc/periodic/security/110.neggrpperm
@@ -0,0 +1,54 @@
+#!/bin/sh -
+#
+# Copyright (c) 2001 The FreeBSD Project
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+# $FreeBSD$
+#
+
+# If there is a global system configuration file, suck it in.
+#
+if [ -r /etc/defaults/periodic.conf ]
+then
+ . /etc/defaults/periodic.conf
+ source_periodic_confs
+fi
+
+rc=0
+
+case "$daily_status_security_neggrpperm_enable" in
+ [Yy][Ee][Ss])
+ echo ""
+ echo 'Checking negative group permissions:'
+ MP=`mount -t ufs,zfs | awk '$0 !~ /no(suid|exec)/ { print $3 }'`
+ n=$(find -sx $MP /dev/null -type f \
+ \( \( ! -perm +010 -and -perm +001 \) -or \
+ \( ! -perm +020 -and -perm +002 \) -or \
+ \( ! -perm +040 -and -perm +004 \) \) \
+ -exec ls -liTd \{\} \+ | tee /dev/stderr | wc -l)
+ [ $n -gt 0 ] && rc=1 || rc=0
+ ;;
+esac
+
+exit $rc
diff --git a/etc/periodic/security/Makefile b/etc/periodic/security/Makefile
index fc67723..74e7b61 100644
--- a/etc/periodic/security/Makefile
+++ b/etc/periodic/security/Makefile
@@ -3,6 +3,7 @@
.include <bsd.own.mk>
FILES= 100.chksetuid \
+ 110.neggrpperm \
200.chkmounts \
300.chkuid0 \
400.passwdless \
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