Attack and Discovery Pattern Database for Application Fuzz Testing

Sajith Shetty

Definition

Fuzz testing or Fuzzing is a Black Box software testing technique, which basically consists in finding implementation bugs using malformed/semi-malformed data injection in an automated fashion.

FuzzBb - Attack and Discovery Pattern Database for Application Fuzz Testing

fuzzdb is an open source database of attack patterns, predictable resource names, regex patterns for identifying interesting server responses, and documentation resources.

FuzzBb - Attack and Discovery Pattern Database for Application Fuzz Testing

Presentation title

Predictable Resource Locations –

Sorted by platform type, language, and application, making brute force testing less brutish.

FuzzBb - Attack and Discovery Pattern Database for Application Fuzz Testing

FuzzBb - Attack and Discovery Pattern Database for Application Fuzz Testing

Attack Patterns – Categorized by :

Platform, Language, and Attack type

Attack Payloads: information leakage OS command injection directory listings directory traversals source exposure file upload bypass XSS SQL injection and more.

FuzzBb - Attack and Discovery Pattern Database for Application Fuzz Testing

FuzzBb - Attack and Discovery Pattern Database for Application Fuzz Testing

Response Analysis – predictable strings.

interesting error messages.

lists of common Session ID cookie names, and more.

Other useful stuff – Webshells.

common password and username lists, and some handy wordlists.

Documentation – Helpful documentation and cheat-sheets sourced from around

the web that are relevant to the payload categories are also provided.

FuzzBb - Attack and Discovery Pattern Database for Application Fuzz Testing

FuzzBb - Attack and Discovery Pattern Database for Application Fuzz Testing

The sets of payloads currently built in to open source fuzzing

and scanning software are poorly representative of the total body of potential attack patterns.

Commercial scanners are a bit better, but not much. However, commercial tools also have a downside, in that that they tend to lock these patterns away in obfuscated binaries.

Furthermore, it's impossible for a human pentester to encounter and memorize all permutations of the meta characters and hex encoding likely to cause error conditions to arise.

FuzzBb - Attack and Discovery Pattern Database for Application Fuzz Testing

FuzzDB was created to aggregate all known attack payloads

and common predictable resource names into usable fuzzer payload lists, categorized by function and platform, and make them freely available under an Open Source license. It is immediately usable by web application penetration testers and security researchers.

FuzzBb - Attack and Discovery Pattern Database for Application Fuzz Testing

Lots of hours of research while performing penetration tests: analysis of default app installs analysis of system and application documentation analysis of error messages researching old web exploits for repeatable attack

strings scraping scanner patterns from http logs various books, articles, blog posts, mailing list threads patterns gleaned from other open source fuzzers and

pentest tools FuzzDB is like an open source web application security scanner, without the scanner.

FuzzBb - Attack and Discovery Pattern Database for Application Fuzz Testing

Burp Proxy's intruder module

Incorporate the patterns into Open Source software, or into your own commercial product.

FuzzBb - Attack and Discovery Pattern Database for Application Fuzz Testing

FuzzBb - Attack and Discovery Pattern Database for Application Fuzz Testing

FuzzBb - Attack and Discovery Pattern Database for Application Fuzz Testing