Individual skill
exploiting-insecure-deserialization
Identifying and exploiting insecure deserialization vulnerabilities in Java, PHP, Python, and .NET applications to achieve remote code execution during authorized penetration tests.
skills/exploiting-insecure-deserialization/SKILL.md
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- Last checked
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- License
- Apache-2.0
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- ai-agents Repository topic
- claude-code Repository topic
- cybersecurity Repository topic
- incident-response Repository topic
- mitre-attack Repository topic
- penetration-testing Repository topic
- red-team Repository topic
- security Repository topic
- cloud-security Repository topic
- malware-analysis Repository topic
- penetration-testing Declared skill tag
- deserialization Declared skill tag
- rce Declared skill tag
- owasp Declared skill tag
- web-security Declared skill tag
- ysoserial Declared skill tag
- security Derived category
- testing Derived category
- security-application Derived category
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Read excerpt
# Exploiting Insecure Deserialization
## When to Use
- During authorized penetration tests when applications process serialized data (cookies, API parameters, message queues)
- When identifying Java serialization markers (`ac ed 00 05` / `rO0AB`) in HTTP traffic
- For testing PHP applications that use `unserialize()` on user-controlled input
- When evaluating .NET applications using `BinaryFormatter`, `ObjectStateFormatter`, or `ViewState`
- During security assessments of applications using pickle (Python), Marshal (Ruby), or YAML deserialization
## Prerequisites
- **Authorization**: Written penetration testing agreement with RCE testing scope
- **ysoserial**: Java deserialization exploit tool (`git clone https://github.com/frohoff/ysoserial.git`)