very advanced fuzzer
features
- Grep
- Status code filtering
- Detect reflexivness (useful for finding xss)
- Prefix, suffixes
- Custom wordlists
- Fuzz any part of the url
- POST support
- URL encode payload
- Print requested URL (useful for debugging)
- Much more to come
compiling
There will also be a vaf_linux_amd64 binary for linux users already compiled by me, but that’s not going to be always updated
- Clone and cd into the repo
- Install nim
Linux: Install nim using: curl https://nim-lang.org/choosenim/init.sh -sSf | sh
and adding nim to path
Windows: Download nim from https://nim-lang.org/install_windows.html and run finish.exe
(you might need to reopen a cmd window for nim to load)
- Run
nimble build
A vaf binary file will be created in your directory ready to be used
using vaf
using vaf is simple, here’s the current help text:
Usage: vaf - very advanced fuzzer [options] Options: -h, --help -u, --url=URL choose url, replace area to fuzz with [] -w, --wordlist=WORDLIST choose the wordlist to use -sc, --status=STATUS set on which status to print, set this param to 'any' to print on any status (default: 200) -pr, --prefix=PREFIX prefix, e.g. set this to / for content discovery if your url doesnt have a / at the end (default: ) -sf, --suffix=SUFFIX suffix, e.g. use this for extensions if you are doing content discovery (default: ) -pd, --postdata=POSTDATA only used if '-m post' is set (default: {}) -m, --method=METHOD the method to use post/get, in lowercase, get is default (default: get) -g, --grep=GREP greps for a string in the response (default: ) -pif, --printifreflexive print only if the output reflected in the page, useful for finding xss -ue, --urlencode url encode the payloads -pu, --printurl prints the url that has been requested
screenshots
(with every status code printed, suffixes .php,.html and no prefixes)
(with url printed, every status code printed, suffixes .php,.html and no prefixes)
(post data fuzzing)
(grep functionality)
examples
Fuzz post data:
vaf.exe -w example_wordlists\short.txt -u https://jsonplaceholder.typicode.com/posts -m post -sc 201 -pd "{\"title\": \"[]\"}"
Fuzz GET URLs
vaf.exe -w example_wordlists\short.txt -u https://example.org/[] -sf .html
tips
- Add a trailing
,
in the suffixes or prefixes argument to try the word without any suffix/prefix like this:-pf .php,
or-sf .php,
- Use
-pif
with a bunch of xss payloads as the wordlist to find XSS - Make an issue if you want to suggest a feature
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