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#!/bin/bash | |
# | |
# All the credit to Forescout - https://www.forescout.com/ | |
# | |
vercomp () { | |
if [[ $1 == $2 ]] | |
then | |
return 0 | |
fi | |
local IFS=. | |
local i ver1=($1) ver2=($2) | |
# fill empty fields in ver1 with zeros | |
for ((i=${#ver1[@]}; i<${#ver2[@]}; i++)) | |
do | |
ver1[i]=0 | |
done | |
for ((i=0; i<${#ver1[@]}; i++)) | |
do | |
if [[ -z ${ver2[i]} ]] | |
then | |
# fill empty fields in ver2 with zeros | |
ver2[i]=0 | |
fi | |
if ((10#${ver1[i]} > 10#${ver2[i]})) | |
then | |
return 1 | |
fi | |
if ((10#${ver1[i]} < 10#${ver2[i]})) | |
then | |
return 2 | |
fi | |
done | |
return 0 | |
} | |
testvercomp () { | |
vercomp $1 $2 | |
case $? in | |
0) op='=';; | |
1) op='>';; | |
2) op='<';; | |
esac | |
if [[ $op != $3 ]] | |
then | |
echo "FAIL: Expected '$3', Actual '$op', Arg1 '$1', Arg2 '$2'" | |
else | |
echo "Pass: '$1 $op $2'" | |
fi | |
} | |
AFFECTEDVER='2.16.0' | |
if [[ -f "/usr/bin/locate" ]]; then | |
updatedb | |
VERSIONS=$(locate log4j-core | grep ".jar" | awk -F 'log4j-core-' '{print $NF}' | awk -F '.j' '{print $1}') | |
else | |
VERSIONS=$(find / -name "*log4j-core-*" -type f 2>/dev/null| grep ".jar" | awk -F 'log4j-core-' '{print $NF}' | awk -F '.j' '{print $1}') | |
fi | |
for VER in $VERSIONS | |
do | |
DATA=$(testvercomp $VER $AFFECTEDVER '<') | |
if [[ "$DATA" == *"Pass"* ]]; then | |
echo "Vulnerable Version Found" | |
fi | |
done |
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