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Merge pull request #790 from shtrom/debsecan-remote

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[debsecan] Flag remotely exploitable CVEs separately
This commit is contained in:
sumpfralle 2017-01-05 04:49:03 +01:00 committed by GitHub
commit ce00c40198
1 changed files with 50 additions and 37 deletions
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87
plugins/system/debsecan
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@ -13,6 +13,8 @@ system (using debsecan). Might work on other distib, who knows...
env.suite jessie
env.fixed_warn 1
env.fixed_critical 1000
env.remote_warn 1
env.remote_critical 10
=head1 AUTHORS
@ -35,26 +37,28 @@ if [ "$1" = "autoconf" ] ; then
if [ -x /usr/bin/debsecan ]; then
echo yes
else
echo no
echo 'no (/usr/bin/debsecan not found)'
fi
exit 0
fi
# Fail if we don't have debsecan
if [ ! -x /usr/bin/debsecan ]; then
echo 'error: /usr/bin/debsecan not found' >&2
exit 1
fi
# Determine suite from filename...
SUITE=`echo $0 | sed 's/.*_//'`
if [ ${SUITE} = ${0} ]; then
SUITE=$(echo "$0" | sed 's/.*_//')
if [ "${SUITE}" = "${0}" ]; then
# ...or fall back onto configuration in environment
SUITE=${suite:-sid}
fi
FIXEDWARN=${fixed_warning:-1}
FIXEDCRIT=${fixed_critical:-1000}
REMOTEWARN=${remote_warning:-1}
REMOTECRIT=${remote_critical:-10}
CVERE="\(\(CVE\|TMP\)[-0-9A-Fa-f]\+\)"
if [ "$1" = "config" ] ; then
cat <<EOF_
graph_title DebSecan : vulnerabilities for ${SUITE}
@ -63,14 +67,22 @@ graph_vlabel number of CVE
graph_category system
graph_period second
graph_info This graph show the number of known vulnerabilities present on your system. Use debsecan to see details.
remote.label remote
remote.colour FF0000
remote.type GAUGE
remote.draw AREASTACK
remote.min 0
remote.info The number of remotely exploitable CVEs with any priority
remote.warning ${REMOTEWARN}
remote.critical ${REMOTECRIT}
high.label high
high.colour FF0000
high.colour DD2200
high.type GAUGE
high.draw AREASTACK
high.min 0
high.info The number of CVEs marked high priority
medium.label medium
medium.colour FFA500
medium.colour FFAA00
medium.type GAUGE
medium.draw AREASTACK
medium.min 0
@ -82,7 +94,7 @@ low.draw AREASTACK
low.min 0
low.info The number of CVEs marked low priority
other.label other
other.colour 00A5FF
other.colour 00AAFF
other.type GAUGE
other.draw AREASTACK
other.min 0
@ -98,37 +110,38 @@ EOF_
exit 0
fi
ALL=$(debsecan --suite "${SUITE}" 2> /dev/null)
REMOTE=$(echo "$ALL" | grep 'remotely')
NONREMOTE=$(echo "$ALL" | grep -v 'remotely')
HIGH=$(echo "${NONREMOTE}" | grep 'high urgency')
MEDIUM=$(echo "${NONREMOTE}" | grep 'medium urgency')
LOW=$(echo "${NONREMOTE}" | grep 'low urgency')
OTHER=$(echo "${NONREMOTE}" | grep -v 'urgency')
FIXED=$(echo "${ALL}" | grep '(fixed')
remote_count=$(echo "${REMOTE}" | wc -l)
high_count=$(echo "${HIGH}" | wc -l)
medium_count=$(echo "${MEDIUM}" | wc -l)
low_count=$(echo "${LOW}" | wc -l)
other_count=$(echo "${OTHER}" | wc -l)
fixed_count=$(echo "${FIXED}" | wc -l)
CVECOUNTRE="s/^ *\([0-9]\+\) \+\([^ ]\+\)/\2 (\1)/"
OUT=`mktemp -t debsecan.XXXXXX`
HIGH=`mktemp -t debsecan.XXXXXX`
MEDIUM=`mktemp -t debsecan.XXXXXX`
LOW=`mktemp -t debsecan.XXXXXX`
OTHER=`mktemp -t debsecan.XXXXXX`
FIXED=`mktemp -t debsecan.XXXXXX`
debsecan --suite ${SUITE} 2> /dev/null > ${OUT}
grep 'high urgency' ${OUT} > ${HIGH}
grep 'medium urgency' ${OUT} > ${MEDIUM}
grep 'low urgency)' ${OUT} > ${LOW}
grep '(fixed' ${OUT} > ${FIXED}
high=`cat ${HIGH} | wc -l`
medium=`cat ${MEDIUM} | wc -l`
low=`cat ${LOW} | wc -l`
other=`cat ${OTHER} | wc -l`
fixed=`cat ${FIXED} | wc -l`
# shellcheck disable=SC2005 disable=SC2046
# The nested $(echo ...)s are needed to yet the newlines
cat <<EOF
high.value $high
high.extinfo `echo $(cut -f 2 -d" " ${HIGH} | uniq -c | sort -nr | sed "${CVECOUNTRE}")`
medium.value $medium
medium.extinfo `echo $(cut -f 2 -d" " ${MEDIUM} | uniq -c | sort -nr | sed "${CVECOUNTRE}")`
low.value $low
low.extinfo `echo $(cut -f 2 -d" " ${LOW} | uniq -c | sort -nr | sed "${CVECOUNTRE}")`
other.value $other
other.extinfo `echo $(cut -f 2 -d" " ${OTHER} | uniq -c | sort -nr | sed "${CVECOUNTRE}")`
fixed.value $fixed
fixed.extinfo `echo $(cut -f 2 -d" " ${FIXED} | uniq -c | sort -nr | sed "${CVECOUNTRE}")`
remote.value $remote_count
remote.extinfo $(echo $(echo "${REMOTE}" | cut -f 2 -d " "| uniq -c | sort -nr | sed "${CVECOUNTRE}"))
high.value $high_count
high.extinfo $(echo $(echo "${HIGH}" | cut -f 2 -d " " | uniq -c | sort -nr | sed "${CVECOUNTRE}"))
medium.value $medium_count
medium.extinfo $(echo $(echo "${MEDIUM}" | cut -f 2 -d " " | uniq -c | sort -nr | sed "${CVECOUNTRE}"))
low.value $low_count
low.extinfo $(echo $(echo "${LOW}" | cut -f 2 -d " " | uniq -c | sort -nr | sed "${CVECOUNTRE}"))
other.value $other_count
other.extinfo $(echo $(echo "${OTHER}" | cut -f 2 -d " " | uniq -c | sort -nr | sed "${CVECOUNTRE}"))
fixed.value $fixed_count
fixed.extinfo $(echo $(echo "${FIXED}" | cut -f 2 -d " " | uniq -c | sort -nr | sed "${CVECOUNTRE}"))
EOF
rm -f ${OUT} ${HIGH} ${MEDIUM} ${LOW} ${FIXED} ${OTHER}