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Summary

Expanded the ASI07 Insecure Inter-Agent Communication document with comprehensive vulnerability analysis and mitigation strategies.

Changes

  • Added detailed description explaining the unique challenges of securing inter-agent communications
  • Included 6 comprehensive vulnerability examples spanning OSI layers 2-7
  • Added detailed prevention and mitigation strategies
  • Included 6 realistic attack scenarios
  • Added references to MITRE ATLAS, NIST AI RMF, Byzantine fault tolerance research, and protocol documentation

Impact

This update transforms ASI07 from a template into a complete security reference for inter-agent communication vulnerabilities in multi-agent systems.

- Add detailed description of inter-agent communication vulnerabilities
- Include 6 comprehensive vulnerability examples covering OSI layers
- Add prevention and mitigation strategies
- Include 6 detailed attack scenarios
- Add references to MITRE ATLAS, NIST AI RMF, and relevant research
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@itskerenkatz itskerenkatz left a comment

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AMAZING WORK
I have left a few minor comments, the most important of them is the lack of mapping to former OWASP frameworks (see in the comment)

- Add Reference Links section mapping ASI07 to OWASP Top 10 for LLMs (LLM01, LLM03-06), Agentic AI Threats, and AIVSS
- Add Example 7 on Agent Identity Impersonation and Spoofing Attacks
- Add Scenario G demonstrating identity spoofing in healthcare multi-agent system
- Add mention of data exposure between agents with different permission levels
- Update reference titles for accuracy (Byzantine Fault Tolerance, Resilient Consensus)
- Reorganize references into single numbered list following ASI document format

Addresses feedback from @itskerenkatz in PR OWASP#729
@stefanoamorelli
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Thanks a lot for your review @itskerenkatz, I've addressed your feedback!

- Add Example 8: Prompt Infection and self-replicating communication attacks
- Add Example 9: Steganographic Collusion and covert channels
- Expand Example 7 with Sybil attack coverage for decentralized systems
- Add Scenario H: Prompt infection propagation in document processing
- Add Scenario I: Steganographic collusion in financial trading
- Add Runtime Detection and Response mitigation category (8 strategies)
- Enhance description with agent-specific communication dynamics
- Add 3 cutting-edge research references (2024-2025):
  * Prompt Infection paper (arXiv:2410.07283)
  * Secret Collusion via Steganography (arXiv:2402.07510)
  * Open Challenges in Multi-Agent Security (arXiv:2505.02077)
- Remove formal vulnerability definition for better flow
- Remove shared state example to maintain communication focus

All references verified and accessible. Document now covers both
traditional (MITM, replay, spoofing) and emerging (infection,
collusion) threats specific to multi-agent communication.
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2 participants