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Spotting insecure deserialization (authorized use) v1.0.0

Use this resource to spot unsafe deserialization within an authorized scope

New

  • 322 downloads
  • 191 likes
  • 185 saves

Free

Install with the CLI

In a terminal, from the folder you want:

npx --yes palatekit@latest install insecure-deserialization-testing

With no option, the skill goes to ~/.agents/skills/; add --agent claude-code (or codex, cursor…) to target an agent.

First time: connect the CLI with

npx --yes palatekit@latest login

The agent looks for unsafe deserialization signals in requests and cookies: Java serialized objects, PHP objects, Python pickle, the Apache Shiro rememberMe cookie and Log4j JNDI interpolation. It requires authorization confirmation before any active test. You get a list of findings to verify.

Mostly picked by

Updated November 2, 2026

Card for the “Spotting insecure deserialization (authorized use)” skill

Details

Works in
Install guides
Generates with
Your agent's model
Licence
MIT

Similar resources

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What you get

  • SKILL.md: attack signals, detection patterns and priority targets
  • SKILL.md: phase-by-phase method, including ysoserial for Java

Good fit for

  • Your Java application accepts serialized objects
  • You review the session cookies of an authorized application

Not for

    Tags

    • security
    • deserialization
    • java
    • authorized

    About

    You say

    “Analyze the cookies and headers of this authorized application for Java deserialization.”

    Card for the “Spotting insecure deserialization (authorized use)” skill

    Skill published by sickn33 under the MIT license, delivered in its original version.

    Show more

    How to use it

    1. Install the skill in your agent's skills folder
    2. Ask your agent to spot unsafe deserialization within an authorized scope
    3. Review and adjust the result

    Content preview

    Files

    • LICENSE1.1 KB
    • NOTICE-PALATEKIT.md0.5 KB
    • SKILL.md9.5 KB

    Origin and licence

    Listed unmodified

    Author
    sickn33
    Source
    github.com/sickn33/agentic-awesome-skills/tree/e9809578fd426a284af017c5db99f8eb6628e6ca/skills/hunt-deserialization
    Licence
    MIT

    Notice

    « hunt-deserialization » (sickn33, MIT) livré dans sa version d'origine : fiche en français et en anglais par PalateKit.

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