SAML 2.0 attacks — XSW (XML Signature Wrapping) variants 1-8, comment injection, signature stripping, assertion forgery, IdP metadata abuse.
61
72%
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Critical
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tessl review fix ./packages/decepticon/decepticon/skills/standard/exploit/web/saml/SKILL.mdSecurity
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.
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.
This document is an explicit offensive SAML attack playbook providing step-by-step techniques and tools to bypass SSO, forge assertions, and impersonate users.
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.
The playbook explicitly instructs decoding, modifying, and documenting captured SAMLResponse values (echo "$SAMLResponse_base64", produce/document modified SAMLResponse and resulting session), which requires the LLM to handle and potentially output sensitive SAML assertions/tokens verbatim.
Low
Low-risk findings.
1 low severity finding. Worth noting, but not necessarily harmful.
The skill exposes the agent to untrusted, user-generated content from public third-party sources, creating a risk of indirect prompt injection. This includes browsing arbitrary URLs, reading social media posts or forum comments, and analyzing content from unknown websites.
This skill’s required workflow is a SAML attack playbook that instructs the operator to capture and decode outsider-authored runtime HTTP content (victim `SAMLResponse`/`SAMLRequest` parameters and SP/IdP metadata), which the operator then copies into tools like Burp/SAML Raider for XML parsing—thus free-form outsider text can enter the agent/LLM context via those decoded message contents.
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