Manifest Tampering in Evidence provenance certification
Analysis of manifest tampering when operating in the context of evidence provenance certification. Covers mechanism, preconditions, Vallum detection and prevention capabilities, limitations, and residual risk.
Attack Mechanism
In the context of evidence and certification: Attacker modifies an agent or tool manifest to alter declared capabilities, permissions, or identity without detection
Preconditions
Active evidence or certification workflow, accessible signing or verification endpoints, and existing evidence packages or certificates in the system
Observable Indicators
Evidence integrity failures, signature validation errors, unexpected certificate state changes, and provenance-chain discontinuities
Affected Assets
Evidence packages, certificates, signing keys, verification endpoints, and audit records
Enterprise Impact
Evidence integrity compromise, false certification claims, audit trail corruption, and regulatory compliance failures
Vallum Containment Strategy
Prevention Capability
Vallum provides authorization-layer controls that reduce attack surface but cannot prevent all variants of this threat without complementary infrastructure and application controls
Detection Capability
Vallum generates receipts and evidence records for authorization decisions that can be analyzed for anomalous patterns. Detection effectiveness depends on integration with customer monitoring infrastructure.
Evidence Produced
Evidence-integrity verification records, signature-validation receipts, and provenance-chain audit trails
Evidence NOT Produced
Network-level intrusion detection data, application-level business logic logs, model inference internals, or infrastructure security monitoring events
Known Limitations
Detection and evidence capabilities are limited to Vallum-managed authorization and evidence boundaries. Attacks that occur entirely within customer application logic, at the infrastructure level, or through social engineering channels are outside Vallum's detection scope.
Your Responsibilities
Implement application-level input validation, deploy infrastructure security monitoring, maintain incident response procedures, conduct regular security assessments, and integrate Vallum detection events with organizational SIEM
Residual Risk
Novel attack variants not covered by current detection patterns, attacks that bypass Vallum's authorization layer entirely, and time-of-check to time-of-use windows between detection and response
Relevant Titan Components
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