frameshifter | Grammar-based HTTP/2 fuzzer with mutation ability | Application Framework library

frameshifter is a Python library typically used in Server, Application Framework applications. frameshifter has no bugs, it has no vulnerabilities, it has build file available, it has a Permissive License and it has low support. You can download it from GitHub.

A user-specified configuration file (see an example here) tells Frameshifter how to generate and mutate HTTP/2 inputs and where to deliver them. To generate inputs, Frameshifter uses an input grammar (see config.grammar here). Once the input is generated, a number (which is decided by the configuration) of mutations are applied. Mutations can be two types: content and sequence. The configuration decides (see config.symbol_mutation_types) what type of mutation can be applied on what input component. Both content and sequence mutations have their mutators defined in the configuration (see config.string_mutators and config.tree_mutators). Mutators which add or replace, uses a pool to pick the new element to add or to replace with (see config.char_pool and config.char_pool). Finally, the configuration also lists the target addresses.