freebsd-ports/ports-mgmt/portaudit/files/portaudit-cmd.sh
Oliver Eikemeier e8a6142888 - update to version 0.5.9
(first attempts to check the base system for vulnerabilities)
2004-09-03 20:30:54 +00:00

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#!/bin/sh -efu
#
# Copyright (c) 2004 Oliver Eikemeier. 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.
#
# 3. Neither the name of the author nor the names of its contributors may be
# used to endorse or promote products derived from this software without
# specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED "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
# COPYRIGHT OWNER 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.
#
# $FreeBSD$
#
portaudit_confs()
{
: ${portaudit_dir="%%DATABASEDIR%%"}
: ${portaudit_filename="auditfile.tbz"}
: ${portaudit_fetch_env=""}
: ${portaudit_fetch_cmd="fetch -1mp"}
: ${portaudit_sites="http://www.FreeBSD.org/ports/"}
: ${portaudit_fixed=""}
if [ -r %%PREFIX%%/etc/portaudit.conf ]; then
. %%PREFIX%%/etc/portaudit.conf
fi
}
extract_auditfile()
{
%%BZIP2_CMD%% -dc -- "$portaudit_dir/$portaudit_filename" | \
tar -xOf - auditfile
}
checksum_auditfile()
{
chksum1=`extract_auditfile |
sed -nE -e '$s/^#CHECKSUM: *MD5 *([0-9a-f]{32})$/\1/p'`
chksum2=`extract_auditfile | sed -e '$d' | md5`
[ "$chksum1" = "$chksum2" ];
}
getcreated_auditfile()
{
extract_auditfile |
sed -nE -e '1s/^#CREATED: *([0-9]{4})-?([0-9]{2})-?([0-9]{2}) *([0-9]{2}):?([0-9]{2}):?([0-9]{2}).*$/\1-\2-\3 \4:\5:\6/p'
}
gettimestamp_auditfile()
{
extract_auditfile |
sed -nE -e '1s/^#CREATED: *([0-9]{4})-?([0-9]{2})-?([0-9]{2}).*$/\1\2\3/p'
}
checkexpiry_auditfile()
{
created=`gettimestamp_auditfile`
expiry=`date -u -v-$1d '+%Y%m%d'`
[ "$created" -gt "$expiry" ];
}
portaudit_prerequisites()
{
if $prerequisites_checked; then
return 0
fi
if [ -z "${pkg_info:-}" ]; then
if [ -x "%%LOCALBASE%%/sbin/pkg_info" ]; then
pkg_info="%%LOCALBASE%%/sbin/pkg_info"
else
pkg_info="/usr/sbin/pkg_info"
fi
fi
if [ -z "${pkg_version:-}"]; then
case "$pkg_info" in
*/*)
pkg_version="${pkg_info%/*}/pkg_version";;
*)
pkg_version="pkg_version";;
esac
fi
PKG_INSTALL_VER=`$pkg_info -qP 2>/dev/null`
if [ -z "$PKG_INSTALL_VER" -o "$PKG_INSTALL_VER" -lt %%REQPKGVER%% ]; then
echo "$pkg_info is too old, please update port sysutils/pkg_install-devel"
return 1
fi
if [ ! -r "$portaudit_dir/$portaudit_filename" ]; then
echo "portaudit: Database missing, run \`portaudit -F' to update." >&2
return 2
elif ! checksum_auditfile; then
echo "portaudit: Corrupt database." >&2
return 2
elif ! checkexpiry_auditfile 14; then
echo "portaudit: Database too old." >&2
return 2
fi
prerequisites_checked=true
return 0
}
audit_installed()
{
local rc=0
local osversion=`sysctl -n kern.osreldate`
fixedre=`echo -n $portaudit_fixed | tr -c '[:alnum:]- \t\n' 'x' | tr -s ' \t\n' '|'`
extract_auditfile | awk -F\| "$PRINTAFFECTED_AWK"'
BEGIN { vul=0; fixedre="'"$fixedre"'" }
/^(#|\$)/ { next }
$2 !~ /'"$opt_restrict"'/ { next }
$1 ~ /^FreeBSD[<=>!]/ {
if (fixedre && $2 ~ fixedre) next
if (!system("'"$pkg_version"' -T \"FreeBSD-'"$osversion"'\" \"" $1 "\"")) {
print_affected("FreeBSD-'"$osversion"'", \
"To disable this check add the uuid to \`portaudit_fixed'"'"' in %%PREFIX%%/etc/portaudit.conf")
}
next
}
{
cmd="'"$pkg_info"' -E \"" $1 "\""
while((cmd | getline pkg) > 0) {
vul++
print_affected(pkg, "")
}
close(cmd)
}
END {
print vul " problem(s) in your installed packages found."
if (vul > 0) {
print "\nYou are advised to update or deinstall" \
" the affected package(s) immediately."
exit(1)
}
}
' || rc=$?
return $rc
}
audit_file()
{
local rc=0
local TMPFILE=
case "$1" in
-)
TMPFILE=`mktemp -t portaudit`
cat > "$TMPFILE"
FILE="$TMPFILE"
;;
http://*|ftp://*|https://*|file://*)
echo "portaudit: Can't audit remote file $1" >&2
return 2
;;
*)
if [ -r "$1" ]; then
FILE="$1"
else
echo "portaudit: Can't read $1" >&2
return 2
fi
;;
esac
extract_auditfile | awk -F\| "$PRINTAFFECTED_AWK"'
BEGIN { vul=0 }
/^(#|\$)/ { next }
{
cmd="'"$pkg_version"' -T - \"" $1 "\" <\"'"$FILE"'\""
while((cmd | getline pkg) > 0) {
if ($2 !~ /'"$opt_restrict"'/)
continue
vul++
print_affected(pkg, "")
}
close(cmd)
}
END {
print vul " problem(s) found."
if (vul > 0) {
exit(1)
}
}
' || rc=$?
if [ -n "$TMPFILE" ]; then
rm "$TMPFILE"
fi
return $rc
}
audit_args()
{
local VULCNT=0
while [ $# -gt 0 ]; do
case "$1" in
/*|-)
echo "portaudit: $1 is a file, please use the -f option" >&2
;;
http://*|ftp://*|https://*|file://*)
echo "portaudit: Can't audit remote file $1" >&2
;;
*)
if VLIST=`extract_auditfile | awk -F\| '
/^(#|\$)/ { next }
$2 !~ /'"$opt_restrict"'/ { next }
{ print }
' | $pkg_version -T "$1" -`; then
VULCNT=$(($VULCNT+1))
echo "$VLIST" | awk -F\| "$PRINTAFFECTED_AWK"'
{ print_affected("'"$1"'", "") }
'
fi
;;
esac
shift
done
$opt_quiet || echo "$VULCNT problem(s) found."
if [ $VULCNT -gt 0 ]; then
return 1
fi
}
audit_cwd()
{
if [ ! -r "Makefile" ]; then
echo "portaudit: No Makefile here" >&2
return 2
fi
PKGNAME=`make -VPKGNAME 2>/dev/null || true"`
if [ -z "$PKGNAME" ]; then
echo "portaudit: Can't determine the package name" >&2
return 2
fi
if VLIST=`extract_auditfile | awk -F\| '
/^(#|\$)/ { next }
$2 !~ /'"$opt_restrict"'/ { next }
{ print }
' | $pkg_version -T "$PKGNAME" -`; then
echo "$VLIST" | awk -F\| "$PRINTAFFECTED_AWK"'
{ print_affected("'"$PKGNAME"'", "") }
'
return 1
fi
}
fetch_auditfile()
{
local rc=2
if [ ! -d "$portaudit_dir" ]; then
if ! mkdir -p "$portaudit_dir"; then
echo "Couldn't create $portaudit_dir, try running \`portaudit -F' as root" >&2
return 2
fi
fi
if [ ! -w "$portaudit_dir" ]; then
echo "Couldn't write to $portaudit_dir, try running \`portaudit -F' as root" >&2
return 2
fi
cd "$portaudit_dir"
if [ -r "$portaudit_filename" ]; then
cp -f "$portaudit_filename" "$portaudit_filename.old"
fi
$opt_verbose && echo "Attempting to fetch from $portaudit_site."
urls=`echo "$portaudit_sites" | tr -s ' \t' '\n' | sed -E -e "s/?\$/$portaudit_filename"`
if ! env $portaudit_fetch_env $portaudit_fetch_cmd $urls; then
echo "Couldn't fetch database." >&2
elif [ ! -f "$portaudit_dir/$portaudit_filename" ] ; then
echo "portaudit: No database." >&2
elif ! checksum_auditfile; then
echo "portaudit: Database corrupt." >&2
elif ! checkexpiry_auditfile 7; then
echo "portaudit: Database too old." >&2
else
$opt_quiet || echo "New database installed."
rc=0
break
fi
if [ -f "$portaudit_filename.old" ]; then
if [ $rc -eq 0 ]; then
rm -f "$portaudit_filename.old"
else
mv -f "$portaudit_filename.old" "$portaudit_filename"
$opt_quiet || echo "Old database restored."
fi
fi
if [ -f "$portaudit_filename" ]; then
chmod a=r "$portaudit_filename"
fi
return $rc
}
portaudit_confs
opt_audit=false
opt_auditcwd=false
opt_dbversion=false
opt_fetch=false
opt_file=
opt_quiet=false
opt_restrict=
opt_verbose=false
opt_version=false
opt_expiry=
if [ $# -eq 0 ] ; then
opt_audit=true
fi
while getopts aCdf:Fqr:vVX: opt; do
case "$opt" in
a)
opt_audit=true;;
C)
opt_auditcwd=true;;
d)
opt_dbversion=true;;
f)
opt_file="$OPTARG";;
F)
opt_fetch=true;;
q)
opt_quiet=true;;
r)
opt_restrict="$OPTARG";;
v)
opt_verbose=true;;
V)
opt_version=true;;
X)
opt_expiry="$OPTARG";;
?)
echo "Usage: $0 -aCdF [-X days] [-r pattern] [-f file] [pkg-name ...]"
exit 2;;
esac
done
shift $(($OPTIND-1))
ret=0
if $opt_version; then
echo "portaudit version %%PORTVERSION%%"
fi
if $opt_fetch; then
if ! fetch_auditfile; then
echo "portaudit: Download failed." >&2
exit 2
fi
elif [ -n "$opt_expiry" ]; then
if [ ! -r "$portaudit_dir/$portaudit_filename" ] || ! checkexpiry_auditfile "$opt_expiry"; then
$opt_quiet || echo "Downloading fresh database."
if ! fetch_auditfile; then
echo "portaudit: Download failed." >&2
exit 2
fi
ret=1
fi
fi
if $opt_dbversion; then
if [ ! -f "$portaudit_dir/$portaudit_filename" ]; then
echo "portaudit: Database missing, run \`portaudit -F' to update." >&2
exit 2
fi
if ! checksum_auditfile; then
echo "portaudit: Database corrupt." >&2
exit 2
fi
created=`getcreated_auditfile`
echo "Database created: `date -j -f '%Y-%m-%d %H:%M:%S %Z' \"$created GMT\"`"
fi
prerequisites_checked=false
if $opt_quiet; then
PRINTAFFECTED_AWK='
function print_affected(apkg, note) {
print apkg
}
'
elif $opt_verbose; then
PRINTAFFECTED_AWK='
function print_affected(apkg, note) {
split(apkg, thepkg)
print "Affected package: " thepkg[1] " (matched by " $1 ")"
print "Type of problem: " $3 "."
split($2, ref, / /)
for (r in ref)
print "Reference: <" ref[r] ">"
if (note)
print "Note: " note
print ""
}
'
else
PRINTAFFECTED_AWK='
function print_affected(apkg, note) {
split(apkg, thepkg)
print "Affected package: " thepkg[1]
print "Type of problem: " $3 "."
split($2, ref, / /)
for (r in ref)
print "Reference: <" ref[r] ">"
if (note)
print "Note: " note
print ""
}
'
fi
if $opt_audit; then
portaudit_prerequisites
audit_installed || ret=$?
fi
if $opt_auditcwd; then
portaudit_prerequisites
audit_cwd || ret=$?
fi
if [ -n "$opt_file" ]; then
portaudit_prerequisites
audit_file "$opt_file" || ret=$?
fi
if [ $# -gt 0 ]; then
portaudit_prerequisites
audit_args "$@" || ret=$?
fi
exit $ret