dma-attack-techniques
Guide for PCIe DMA threat modeling, FPGA-based memory access, and defensive implications in game security. Use this skill when researching pcileech, BAR and TLP behavior, page-table walking, IOMMU or VT-d, device impersonation, firmware mimicry, or DMA detection and mitigation in game security research.
57
66%
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Critical
Do not install without reviewing
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tessl review fix ./.claude/skills/dma-attack/SKILL.mdSecurity
2 findings: 1 critical severity, 1 medium severity. Installing this skill is not recommended: please review these findings carefully if you do intend to do so.
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 provides detailed, actionable instructions and tooling (pcileech, MemProcFS, DMA firmware, page-table manipulation, IOMMU bypasses) that enable unauthorized physical-memory reads, covert data exfiltration, and stealthy evasion of detection, and thus presents high malicious intent and abuse risk.
W013: Attempt to modify system services in skill instructions.
What this means
The skill prompts the agent to compromise the security or integrity of the user’s machine by modifying system-level services or configurations, such as obtaining elevated privileges, altering startup scripts, or changing system-wide settings.
Why it was flagged
This skill contains explicit, actionable guidance and code for privileged memory access and system reconfiguration (pcileech physical reads, IOMMU domain reprogramming, BME clearance, shadow-CR3/EPT manipulation, MemProcFS mounts, direct ECAM mapping), which enable compromising the host machine's state.
Low
Low-risk findings.
2 low severity findings. Worth noting, but not necessarily harmful.
W011: Third-party content exposure detected (indirect prompt injection risk).
What this means
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.
Why it was flagged
The required runtime workflow can fetch outsider-authored GitHub-hosted free text (e.g., “archive/{owner}/{repo}.txt” and description files) based on the user’s requested repository, meaning a user can cause poisoning via arbitrary repo content.
W012: Unverifiable external dependency detected (runtime URL that controls agent).
What this means
The skill fetches instructions or code from an external URL at runtime, and the fetched content directly controls the agent’s prompts or executes code. This dynamic dependency allows the external source to modify the agent’s behavior without any changes to the skill itself.
Why it was flagged
This skill explicitly instructs the agent to fetch and use external raw GitHub content at runtime (e.g., https://raw.githubusercontent.com/gmh5225/awesome-game-security/refs/heads/main/README.md), so those URLs are runtime dependencies that control the agent's responses.
- Repository
- gmh5225/awesome-game-security
- Commit
a73f4a5
- Audited
- Security analysis
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