Created
January 30, 2015 17:12
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Script para revisar si un sistema es vulnerable al bug GHOST
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#!/bin/bash | |
#Version 3 | |
echo "Installed glibc version(s)" | |
rv=0 | |
for glibc_nvr in $( rpm -q --qf '%{name}-%{version}-%{release}.%{arch}\n' glibc ); do | |
glibc_ver=$( echo "$glibc_nvr" | awk -F- '{ print $2 }' ) | |
glibc_maj=$( echo "$glibc_ver" | awk -F. '{ print $1 }') | |
glibc_min=$( echo "$glibc_ver" | awk -F. '{ print $2 }') | |
echo -n "- $glibc_nvr: " | |
if [ "$glibc_maj" -gt 2 -o \ | |
\( "$glibc_maj" -eq 2 -a "$glibc_min" -ge 18 \) ]; then | |
# fixed upstream version | |
echo 'not vulnerable' | |
else | |
# all RHEL updates include CVE in rpm %changelog | |
if rpm -q --changelog "$glibc_nvr" | grep -q 'CVE-2015-0235'; then | |
echo "not vulnerable" | |
else | |
echo "vulnerable" | |
rv=1 | |
fi | |
fi | |
done | |
if [ $rv -ne 0 ]; then | |
cat <<EOF | |
This system is vulnerable to CVE-2015-0235. <https://access.redhat.com/security/cve/CVE-2015-0235> | |
Please refer to <https://access.redhat.com/articles/1332213> for remediation steps | |
EOF | |
fi | |
exit $rv |
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