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proxy-misconfig

Reverse proxy misconfigurations — nginx alias traversal, Apache mod_rewrite SSRF, Spring Boot Actuator exposure, Tomcat manager, IIS short-name disclosure.

65

Quality

79%

Does it follow best practices?

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SecuritybySnyk

Critical

Do not install without reviewing

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tessl review fix ./packages/decepticon/decepticon/skills/standard/exploit/web/proxy-misconfig/SKILL.md
SKILL.md
Quality
Evals
Security

Security

2 findings: 1 critical severity, 1 high severity. Installing this skill is not recommended: please review these findings carefully if you do intend to do so.

Critical

E006: Malicious code pattern detected in skill scripts.

What this means

Detected high-risk code patterns in the skill content — including its prompts, tool definitions, and resources — such as data exfiltration, backdoors, remote code execution, credential theft, system compromise, supply chain attacks, and obfuscation techniques.

Why it was flagged

This document contains explicit, actionable exploitation instructions (SSRF to cloud metadata, Spring Actuator /env and heapdump exfiltration, Tomcat WAR upload with msfvenom reverse shell, header-origin bypasses) that enable data exfiltration, credential theft, and remote code execution.

Report incorrect finding
High

W007: Insecure credential handling detected in skill instructions.

What this means

The skill handles credentials insecurely by requiring the agent to include secret values verbatim in its generated output. This exposes credentials in the agent’s context and conversation history, creating a risk of data exfiltration.

Why it was flagged

The document embeds plaintext credentials (e.g., tomcat:tomcat, admin:admin) and shows curl commands that include -u credentials and retrieval of /actuator/env and heapdumps (which leak secrets), forcing the agent to generate or handle secret values verbatim.

Repository
PurpleAILAB/Decepticon
Audited
Security analysis
Snyk

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