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- #!/bin/bash
- EXITCODE=0
- # CVE-2014-6271
- CVE20146271=$(env 'x=() { :;}; echo vulnerable' 'BASH_FUNC_x()=() { :;}; echo vulnerable' bash -c "echo test" 2>&1 | grep 'vulnerable' | wc -l)
- echo -n "CVE-2014-6271 (original shellshock): "
- if [ $CVE20146271 -gt 0 ]; then
- echo -e "\033[91mVULNERABLE\033[39m"
- EXITCODE=$((EXITCODE+1))
- else
- echo -e "\033[92mnot vulnerable\033[39m"
- fi
- # CVE-2014-6277
- CVE20146277=$((bash -c "f() { x() { _;}; x() { _;} <<a; }" 2>/dev/null || echo vulnerable) | grep 'vulnerable' | wc -l)
- echo -n "CVE-2014-6277 (segfault): "
- if [ $CVE20146277 -gt 0 ]; then
- echo -e "\033[91mVULNERABLE\033[39m"
- EXITCODE=$((EXITCODE+2))
- else
- echo -e "\033[92mnot vulnerable\033[39m"
- fi
- # CVE-2014-6278
- CVE20146278=$(shellshocker='() { echo vulnerable; }' bash -c shellshocker 2>/dev/null | grep 'vulnerable' | wc -l)
- echo -n "CVE-2014-6278 (Florian's patch): "
- if [ $CVE20146278 -gt 0 ]; then
- echo -e "\033[91mVULNERABLE\033[39m"
- EXITCODE=$((EXITCODE+4))
- else
- echo -e "\033[92mnot vulnerable\033[39m"
- fi
- # CVE-2014-7169
- CVE20147169=$((cd /tmp; rm -f /tmp/echo; env X='() { (a)=>\' bash -c "echo echo nonvuln" 2>/dev/null; [[ "$(cat echo 2> /dev/null)" == "nonvuln" ]] && echo "vulnerable" 2> /dev/null) | grep 'vulnerable' | wc -l)
- echo -n "CVE-2014-7169 (taviso bug): "
- if [ $CVE20147169 -gt 0 ]; then
- echo -e "\033[91mVULNERABLE\033[39m"
- EXITCODE=$((EXITCODE+8))
- else
- echo -e "\033[92mnot vulnerable\033[39m"
- fi
- # CVE-2014-7186
- CVE20147186=$((bash -c 'true <<EOF <<EOF <<EOF <<EOF <<EOF <<EOF <<EOF <<EOF <<EOF <<EOF <<EOF <<EOF <<EOF <<EOF' 2>/dev/null || echo "vulnerable") | grep 'vulnerable' | wc -l)
- echo -n "CVE-2014-7186 (redir_stack bug): "
- if [ $CVE20147186 -gt 0 ]; then
- echo -e "\033[91mVULNERABLE\033[39m"
- EXITCODE=$((EXITCODE+16))
- else
- echo -e "\033[92mnot vulnerable\033[39m"
- fi
- # CVE-2014-7187
- CVE20147187=$(((for x in {1..200}; do echo "for x$x in ; do :"; done; for x in {1..200}; do echo done; done) | bash || echo "vulnerable") | grep 'vulnerable' | wc -l)
- echo -n "CVE-2014-7187 (nested loops off by one): "
- if [ $CVE20147187 -gt 0 ]; then
- echo -e "\033[91mVULNERABLE\033[39m"
- EXITCODE=$((EXITCODE+32))
- else
- echo -e "\033[92mnot vulnerable\033[39m"
- fi
- # CVE-2014-////
- CVE2014=$(env X=' () { }; echo vulnerable' bash -c 'date' | grep 'hello' | wc -l)
- echo -n "CVE-2014-//// (exploit 3 on http://shellshocker.net/): "
- if [ $CVE2014 -gt 0 ]; then
- echo -e "\033[91mVULNERABLE\033[39m"
- EXITCODE=$((EXITCODE+64))
- else
- echo -e "\033[92mnot vulnerable\033[39m"
- fi
- exit $EXITCODE
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