fuff
Installation & Configuration
Install
Ffuf depends on Go 1.16 or greater
Configuration files
When running ffuf, it first checks if a default configuration file exists. efault path for a ffufrc file is $XDG_CONFIG_HOME/ffuf/ffufrc. You can onfigure one or multiple options in this file, and they will be applied on very subsequent ffuf job. An example of ffufrc file can be found here. A more detailed description about configuration file locations can be found n the wiki: https://github.com/ffuf/ffuf/wiki/Configuration
Commands
FUZZ keyword at the end of URL (-u)
Virtual host discovery (without DNS records)
Assuming that the default virtualhost response size is 4242 bytes, we can ilter out all the responses of that size (-fs 4242)while fuzzing the Host header:
GET parameter fuzzing
similar to directory discovery, and works by defining the FUZZ keyword as a art of the URL. This also assumes a response size of 4242 bytes for nvalid GET parameter name.
If the parameter name is known, the values can be fuzzed the same way. This xample assumes a wrong parameter value returning HTTP response code 401.
POST data fuzzing
This is a very straightforward operation, again by using the FUZZ keyword. his example is fuzzing only part of the POST request. We're again iltering out the 401 responses.
ffuf -w /path/to/postdata.txt -X POST -d "username=admin\&password=FUZZ" -u ttps://target/login.php -fc 401
Maximum execution time
If you don't want ffuf to run indefinitely, you can use the -maxtime. This tops the entire process after a given time (in seconds).
When working with recursion, you can control the maxtime per job using maxtime-job. This will stop the current job after a given time (in seconds) and continue with the next one. New jobs are created when the recursion functionality detects a subdirectory.
It is also possible to combine both flags limiting the per job maximum execution time as well as the overall execution time. If you do not use recursion then both flags behave equally.
Switches | Options | Usage
To define the test case for ffuf, use the keyword FUZZ anywhere in the URL -u), headers (-H), or POST data (-d).
Fuzz Faster U Fool - v2.1.0
HTTP OPTIONS:
-H Header `"Name: Value"`, separated by colon. Multiple -H flags are accepted.
-X HTTP method to use
-b Cookie data `"NAME1=VALUE1; NAME2=VALUE2"` for copy as curl functionality.
-cc Client cert for authentication. Client key needs to be defined as well for this to work
-ck Client key for authentication. Client certificate needs to be defined as well for this to work
-d POST data
-http2 Use HTTP2 protocol (default: false)
-ignore-body Do not fetch the response content. (default: false)
-r Follow redirects (default: false)
-raw Do not encode URI (default: false)
-recursion Scan recursively. Only FUZZ keyword is supported, and URL (-u) has to end in it. (default: false)
-recursion-depth Maximum recursion depth. (default: 0)
-recursion-strategy Recursion strategy: "default" for a redirect based, and "greedy" to recurse on all matches (default: default)
-replay-proxy Replay matched requests using this proxy.
-sni Target TLS SNI, does not support FUZZ keyword
-timeout HTTP request timeout in seconds. (default: 10)
-u Target URL
-x Proxy URL (SOCKS5 or HTTP). For example: http://127.0.0. 1:8080 or socks5://127.0.0.1:8080
GENERAL OPTIONS:
-V Show version information. (default: false)
-ac Automatically calibrate filtering options (default: false)
-acc Custom auto-calibration string. Can be used multiple times. Implies -ac
-ach Per host autocalibration (default: false)
-ack Autocalibration keyword (default: FUZZ)
-acs Custom auto-calibration strategies. Can be used multiple times. Implies -ac
-c Colorize output. (default: false)
-config Load configuration from a file
-json JSON output, printing newline-delimited JSON records (default: false)
-maxtime Maximum running time in seconds for entire process. (default: 0)
-maxtime-job Maximum running time in seconds per job. (default: 0)
-noninteractive Disable the interactive console functionality (default: false)
-p Seconds of `delay` between requests, or a range of random delay. For example "0.1" or "0.1-2.0"
-rate Rate of requests per second (default: 0)
-s Do not print additional information (silent mode) (default: false)
-sa Stop on all error cases. Implies -sf and -se. (default: false)
-scraperfile Custom scraper file path
-scrapers Active scraper groups (default: all)
-se Stop on spurious errors (default: false)
-search Search for a FFUFHASH payload from ffuf history
-sf Stop when > 95% of responses return 403 Forbidden (default: false)
-t Number of concurrent threads. (default: 40)
-v Verbose output, printing full URL and redirect location (if any) with the results. (default: false)
MATCHER OPTIONS:
-mc Match HTTP status codes, or "all" for everything. (default: 200-299,301,302,307,401,403,405,500)
-ml Match amount of lines in response
-mmode Matcher set operator. Either of: and, or (default: or)
-mr Match regexp
-ms Match HTTP response size
-mt Match how many milliseconds to the first response byte, either greater or less than. EG: >100 or <100
-mw Match amount of words in response
FILTER OPTIONS:
-fc Filter HTTP status codes from response. Comma separated list of codes and ranges
-fl Filter by amount of lines in response. Comma separated list of line counts and ranges
-fmode Filter set operator. Either of: and, or (default: or)
-fr Filter regexp
-fs Filter HTTP response size. Comma separated list of sizes and ranges
-ft Filter by number of milliseconds to the first response byte, either greater or less than. EG: >100 or <100
-fw Filter by amount of words in response. Comma separated list of word counts and ranges
INPUT OPTIONS:
-D DirSearch wordlist compatibility mode. Used in conjunction with -e flag. (default: false)
-e Comma separated list of extensions. Extends FUZZ keyword.
-enc Encoders for keywords, eg. 'FUZZ:urlencode b64encode'
-ic Ignore wordlist comments (default: false)
-input-cmd Command producing the input. --input-num is required when using this input method. Overrides -w.
-input-num Number of inputs to test. Used in conjunction with --input-cmd. (default: 100)
-input-shell Shell to be used for running command
-mode Multi-wordlist operation mode. Available modes: clusterbomb, pitchfork, sniper (default: clusterbomb)
-request File containing the raw http request
-request-proto Protocol to use along with raw request (default: https)
-w Wordlist file path and (optional) keyword separated by colon. eg. '/path/to/wordlist:KEYWORD'
OUTPUT OPTIONS:
-debug-log Write all of the internal logging to the specified file.
-o Write output to file
-od Directory path to store matched results to.
-of Output file format. Available formats: json, ejson, html, md, csv, ecsv (or, 'all' for all formats) (default: json)
-or Don't create the output file if we don't have results (default: false)
EXAMPLE USAGE:
Fuzz file paths from wordlist.txt, match all responses but filter out those with content-size 42.
Colored, verbose output.
ffuf -w wordlist.txt -u https://example.org/FUZZ -mc all -fs 42 -c -v
Fuzz Host-header, match HTTP 200 responses.
ffuf -w hosts.txt -u https://example.org/ -H "Host: FUZZ" -mc 200
Fuzz POST JSON data. Match all responses not containing text "error".
ffuf -w entries.txt -u https://example.org/ -X POST -H "Content-Type: application/json" \
-d '{"name": "FUZZ", "anotherkey": "anothervalue"}' -fr "error"
Fuzz multiple locations. Match only responses reflecting the value of "VAL" keyword. Colored.
ffuf -w params.txt:PARAM -w values.txt:VAL -u https://example.org/? PARAM=VAL -mr "VAL" -c
More information and examples: https://github.com/ffuf/ffuf