# c0ny1/FastjsonExploit

Fastjson vulnerability quickly exploits the framework（fastjson漏洞快速利用框架）

Repository: https://github.com/c0ny1/FastjsonExploit
Canonical: https://ross.abutalabs.com/products/fastjsonexploit
Language: Java
License Family: other
Topics: fastjson, exploiting-vulnerabilities, exp, poc
Last push: 2022-12-16T03:56:54+00:00

## Health v2 (maintenance only)
Score: 32/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 0, release rhythm 35, longevity 100
- inputs: {"age_days": 2601, "days_push": 1356, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases, no_license
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1406, forks 175 (observed 2026-08-28T04:04:38.285899+00:00)

## What it is
A Java CLI framework for quickly exploiting Fast deserialization vulnerabilities. It generates exploit payloads with one command and bundles 11 exploit variants and bypasses across Fast versions.

## Use cases
- generate fast exploit payloads
- test fast jndi injection vulnerabilities
- bypass fast autoType restrictions in 1.2.41-1.2.47
- spin up rmi and ldap exploit environments for fast testing
- run command execution payloads against vulnerable fast versions
- verify whether a target is vulnerable to fast deserialization

## When to choose
- you are pentesting or assessing a Java app running a vulnerable Fast version
- you need a ready-made catalog of Fast exploit chains and version bypasses
- you want one-command payload generation plus exploit environment startup

## When to avoid
- you need a general-purpose vulnerability scanner rather than a Fast-specific exploit tool
- you require a maintained tool with an active license and ongoing updates
- you are defending systems and want detection tooling instead of exploitation

## Facets
- artifact type: cli-tool
- maturity: maintenance
- function: penetration-testing, security, cli, developer-tools
- domain: security, penetration-testing, developer-tools
- platform: jvm, cli, cross-platform
- tags: fast, exploit-framework, jndi, payload-generation, deserialization, red-team

## Member repositories
- c0ny1/FastjsonExploit (main) score 32

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:04:38.285899+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T04:38:41.794272+00:00, confidence not recorded.
  - readme: https://github.com/c0ny1/FastjsonExploit (fetched 2026-08-28T04:04:38.285899+00:00, sha 9ad5cd9e406a)
- Data as of 2026-08-30T08:39:29.467469+00:00.