Kali Linux Tutorials

WWWGrep is a rapid search “grepping” mechanism that examines HTML elements by type and permits focused (single), multiple (file based URLs) and recursive (with respect to root domain or not) searches to be performed. Header names and values may also be recursively searched in this manner. WWWGrep was designed to help both breakers and builders to quickly examine code bases under inspection, some use cases and examples are shown below.

Installation

git clone
pip3 install -r requirements.txt
python3 wwwgrep.py

Dependencies (pip3 install -r requirements.txt)

• Python 3.5+
• BeautifulSoup 4
• UrlLib.parse
• requests_html
• argparse
• requests
• re
• os.path

Breakers

• Quickly locate login pages by searching for input fields named “username” or “password” on a site an using a recursion flag
• Quickly check headers for the use of specific technologies
• Quickly locate cookies and JWT tokens by search response headers
• Use with a proxy tool to automate recursion through a set links rapidly
• Locate all input sinks on a page (or site) by search for input fields and parameter processing symbology
• Locate all developer comments on a page to identify commented out code (or To Do’s)
• Quickly test consistency of site controls implemented during recursion (headers, HSTS, CSP etc)
• Quickly find vulnerable JavaScript code present in web pages
• Identify API tokens and access keys present in page code

Builders

• Quickly test multiple sites under management for the use of vulnerable code
• Quickly test multiple sites under management for the use of vulnerable frameworks/technologies
• Find sites which may share a common codebase to determine the impact of flaws/vulnerabilities
• Find sites which share a common authentication token (header auth token)
• Find sites which may contain developer comments for server hygiene purposes

Command line switches

wwwgrep.py [target/file] [search_string] [search params/criteria/recursion etc]

Search Inputs
search_string Specify the string to search for or alternatively “”
for all objects of type specified in search parameters
-t –target Specify a single URL as a target for the search
-f –file Specify a file containing a list of URLs to search
Recursion
-rr –recurse-root Limits URL recursion to the domain provided in the target
-ra –recurse-any Allows recursion to extend beyond the domain of the target
Matching Criteria
-i –ignore-case Performs case insensitive matching (default is to respect case)
-d –dedupe Allow duplicate findings per page (default is to de-duplicate findings)
-r –no-redirects Do not allow redirects (default is to allow redirects)
-b –no-base-url Omit the URL of the match from the output (default is to include the URL)
-x –regex Allows the use of RegEX matches (search_string is treated as a RegEX, default is off)
-e –separator Specify and output specifier (default is : )
-j –java-render Turns on JavaScript rendering of page objects and text (default is off)
-p –linked-js-on Turns on searching of linked (script src tags) Java Script (default is off)
Request Parameters
-ps –https-proxy Specify a proxy for the HTTPS protocol in https://: format
-pp –http-proxy Specify a proxy for the HTTP protocol in http://: format
-hu –user-agent Specify a string to use as the user agent in the request
-ha –auth-header Specify a bearer token or other auth string to use in the request header
Search Parameters
-s –all Search all page HTML and scripts for terms that match the search specification
-sr –relative Search page links that match the search specification as relative URLs
-sa –absolute Search page links that match the search specification as absolute URLs
-si –input-fields Search page input fields that match the search specification
-ss –scripts Search scripts tags that match the search specification
-st –text Search visible text on the page that matches the search specification
-sc –comments Search comments on the page that match the search specification
-sm –meta Search in page metadata for matches to the search specification
-sf –hidden Search in hidden fields for specific matches to the search specification
-sh –header-name Search response headers for specific matches to the search specification
-sv –header-value Search response header values for specific matches to the search specification

Examples of use

Find all input fields named login on a site recursively while not leaving the root domain without case sensitivity in the match

wwwgrep.py -t https://www.target.com -i -si “login” -rr

Find all comments containing the term “to do” on all pages in a site

wwwgrep.py -t https://www.target.com -i -sc “to do” -rr

Find all comments on a specific web page

wwwgrep.py -t https://www.target.com/some_page -i -sc “”

Find all hidden fields within a list of web applications contained in the file input.txt using site recursion

wwwgrep.py -f input.txt -sf “” -rr