hellodqy/mastermind-bug-bounty/deserialization

Claude Code and agent skill by hellodqy/mastermind-bug-bounty

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Test serialized objects, polymorphic payloads, message formats, and naming lookups when untrusted data may instantiate types or trigger dangerous behavior.

Install

npx vskill@latest install hellodqy/mastermind-bug-bounty/deserialization

SKILL.md

Deserialization

Goal

识别数据格式、运行库与可达 gadget，使用低风险证据判断不可信输入是否触发类型实例化、外部查找或代码路径。

Tools / Inputs

  • Content-Type、魔数、错误信息、依赖版本、类型字段、消息队列与 OOB 证据
  • 资源索引：references/INDEX.md；候选资源：deserialization-jndi-testing.md、cve-chains.md

Constraints

  1. 先确认格式和解析库，再选择探针。
  2. 优先无害类型差分、DNS/OOB 或异常证据，不执行破坏性 gadget。
  3. JNDI 回连只证明查找行为；报告需说明可达影响和环境条件。
  4. 不向生产目标投递公开武器化 gadget 链。
  5. 版本指纹必须与入口、配置和可达性共同验证。

Chain Questions

  • 哪个解析器接受什么格式，类型信息由谁控制？
  • 可控数据能否触发类加载、setter、回调、外部查找或模板执行？
  • 认证、签名或加密是否在反序列化前真正验证？
  • 最小证据能否区分解析、查找与实际执行？

Security

  • Security scanPassed, 90 of 100Pattern checks on the skill's files.
  • Model reviewPassed

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Source

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