Kali Linux Tutorials

Parameth tool can be used to brute discover GET and POST parameters. Often when you are busting a directory for common files, you can identify scripts (for example test.php) that look like they need to be passed an unknown parameter. This hopefully can help find them.

The -off flag allows you to specify an offset (helps with dynamic pages) so for example, if you were getting alternating response sizes of 4444 and 4448, set the offset to 5 and it will only show the stuff outside the norm.

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Installation

virtualenv venv
. ./venv/bin/activate
pip install -u -r requirements.txt

Usage

usage: parameth.py [-h] [-v] [-u URL] [-p PARAMS] [-H HEADER] [-a AGENT]
[-t THREADS] [-off VARIANCE] [-diff DIFFERENCE] [-o OUT]
[-P PROXY] [-x IGNORE] [-s SIZEIGNORE] [-d DATA]
[-i IGMETH] [-c COOKIE] [-T TIMEOUT]
optional arguments:
-h, –help show this help message and exit
-v, –version Version Information
-u URL, –url URL Target URL
-p PARAMS, –params PARAMS
Provide a list of parameters to scan for
-H HEADER, –header HEADER
Add headers in format a:b c:d
-a AGENT, –agent AGENT
Specify a user agent
-t THREADS, –threads THREADS
Specify the number of threads.
-off VARIANCE, –variance VARIANCE
The offset in difference to ignore (if dynamic pages)
-diff DIFFERENCE, –difference DIFFERENCE
Percentage difference in response (recommended 95)
-o OUT, –out OUT Specify output file
-P PROXY, –proxy PROXY
Specify a proxy in the form http|s://[IP]:[PORT]
-x IGNORE, –ignore IGNORE
Specify a status to ignore eg. 404,302…
-s SIZEIGNORE, –sizeignore SIZEIGNORE
Ignore responses of specified size
-d DATA, –data DATA Provide default post data (also taken from provided
url after ?)
-i IGMETH, –igmeth IGMETH
Ignore GET or POST method. Specify g or p
-c COOKIE, –cookie COOKIE
Specify Cookies
-T TIMEOUT, –timeout TIMEOUT
Specify a timeout in seconds to wait between each
request

Adding new params from source:

The following regexes might be useful to parse $_GET or $_POST parameters from source:

$> grep -rioP ‘$_POST[\s[“‘]\s\w+\s[“‘]\s]’ PHPSOURCE | grep -oP ‘$_POST[\s[“‘]\s\w+\s[“‘]\s]’ | sed -e “s/$_POST[\s[“‘]//g” -e “s/\s[‘”]\s*]//g” | sort -u > /tmp/outfile.txt
$> grep -rioP ‘$_GET[\s[“‘]\s\w+\s[“‘]\s]’ PHPSOURCE | grep -oP ‘$_GET[\s[“‘]\s\w+\s[“‘]\s]’ | sed -e “s/$_GET[\s[“‘]//g” -e “s/\s[‘”]\s*]//g” | sort -u > /tmp/outfile.txt