DOSFI Distributed Intelligence Platform
Security Audit Report
Full-spectrum security audit across identity fabric, authentication, node security, routing, inference integrity, Vital DIU economics, education platform, and cross-system attack surfaces. Covers all connected systems: MeshInfer.ai, DOSFI.ai, MeshNativeExchange.com, DosfiAcademy.com, DosfiUniversity.com, mesh-native apps, agents, enterprise nodes, and the 20-node test mesh.
Executive Summary
Audit Scope & Methodology
This audit was conducted against the full DOSFI distributed intelligence platform, encompassing all nine connected systems and eight security domains. The audit tests identity fabric security, authentication and authorization controls, node-level integrity, routing and workflow security, inference execution integrity, Vital DIU economic security, education platform access controls, and cross-system attack surfaces.
Findings are classified by severity (CRITICAL, HIGH, MEDIUM, LOW) and status (PASS, PARTIAL, FAIL, REVIEW REQUIRED). CRITICAL findings represent attack vectors that, if exploited, can compromise the fundamental security or economic integrity of the platform. HIGH findings represent significant vulnerabilities that require remediation within 30 days. MEDIUM findings represent controls that should be strengthened within 90 days.
Two FAIL findings (ND-002: Metering Falsification; VT-002: Compute-Backed Issuance Falsification) directly threaten the economic integrity of the Vital DIU model and require immediate remediation before any enterprise node is admitted to the production mesh.
@dosfi.ai Identity Fabric Security Audit
Tests identity spoofing, forged tokens, replay attacks, signature forgery, impersonation, privacy tier bypass, identity propagation vulnerabilities, and identity recovery exploits across all connected systems.
Identity Token Replay Attack Surface
Signature Forgery via Weak Signing Algorithm
Impersonation via Subdomain Identity Confusion
Identity Revocation Not Propagated in Real Time
Identity Recovery Exploit via Unauthenticated Reset Flow
Privacy Tier Bypass via Identity Claim Downgrade
Authentication & Authorization Audit
Tests session hijacking, token leakage, privilege escalation, unauthorized access, broken trust boundaries, cross-domain authentication flaws, and inconsistent enforcement of identity rules.
Session Hijacking via Missing Secure/HttpOnly Cookie Flags
Privilege Escalation via Unvalidated Role Claims
Cross-Domain Authentication Flaw via Token Sharing
Broken Trust Boundary: Enterprise Node to Settlement System
Token Leakage via Verbose Error Responses
Node Security Audit (20-Node Mesh + Enterprise)
Tests rogue node injection, unauthorized node joining, node identity spoofing, routing manipulation, inference hijacking, metering falsification, and Vital issuance and spend spoofing.
Rogue Node Injection via Unauthenticated Mesh Join
Metering Falsification: Inflated Compute Contribution Claims
Node Identity Spoofing via Certificate Reuse
Vital Issuance Spoofing via Forged Execution Receipt
Settlement Log Tampering via Direct Database Access
Routing & Workflow Security Audit
Tests routing spoofing, redirection attacks, workflow poisoning, priority escalation, denial of routing, routing loop injection, and routing table corruption.
Routing Redirection via Poisoned Routing Table Entry
Priority Escalation via Malformed Routing Policy
Routing Loop Injection via Circular Policy References
Workflow Poisoning via Malicious State Transition Payload
Denial of Routing via Resource Exhaustion
Routing + Workflow Security Map
| Routing Attack Vector | Affected Component | Severity | Control Required |
|---|---|---|---|
| Routing table poisoning | DOSFI Scheduler | CRITICAL | Signed routing updates from coordinator only |
| Priority escalation | DOSFI Scheduler | HIGH | Per-tenant priority ceiling in policy compiler |
| Routing loop injection | DOSFI Scheduler | HIGH | Cycle detection at policy submission |
| Workflow state poisoning | MeshInfer.ai / Runtime | HIGH | Schema-validated state transitions |
| Denial of routing | DOSFI Scheduler | MEDIUM | Per-identity rate limiting + fair queuing |
| Routing redirection | MeshInfer.ai | CRITICAL | Signed routing advertisements |
Inference & Execution Security Audit
Tests inference tampering, payload injection, model spoofing, inference replay, inference substitution, inference corruption, unauthorized execution, and privacy tier bypass during inference.
Inference Payload Injection via Unvalidated Input Schema
Inference Result Substitution via Man-in-the-Middle
Model Spoofing via Unverified Model Registry Entry
Inference Replay via Missing Result Nonce
Privacy Tier Bypass During Inference Handoff
Unauthorized Inference Execution via Missing Authorization Check
Inference Integrity Verification Guide
Vital Distributed Intelligence Unit & Settlement Security Audit
Tests Vital issuance spoofing, spend spoofing, DIU supply manipulation, hard cap bypass, settlement log tampering, redemption spoofing, and compute-backed issuance falsification.
DIU Hard Cap Bypass via Supply Manipulation
Compute-Backed Issuance Falsification
Redemption Spoofing via Forged Settlement Request
Vital Spend Spoofing via Settlement Log Inconsistency
DIU Supply Manipulation via Issuance Schedule Override
Vital + Settlement Security Map
| Economic Attack Vector | Threat to DIU Model | Severity | Required Control |
|---|---|---|---|
| Hard cap bypass | Unlimited DIU issuance beyond supply ceiling | CRITICAL | Ledger-level hard cap constraint (API-independent) |
| Compute issuance falsification | DIU issued without real compute backing | CRITICAL | Two-phase issuance with signed execution receipts |
| DIU supply schedule manipulation | Altered emission schedule benefits insiders | CRITICAL | Governance-signed append-only configuration |
| Redemption spoofing | DIU claimed without earning | HIGH | Identity proof + settlement record + signature |
| Spend double-use | Same DIU spent multiple times | HIGH | Atomic spend/issuance transactions on ledger |
| Settlement log tampering | Historical DIU records modified | HIGH | Append-only cryptographic chain with alerts |
Education Platform Security Audit
Tests identity spoofing in course access, unauthorized enrollment, certification forgery, progress manipulation, cross-site impersonation, and backend access vulnerabilities on DosfiAcademy.com and DosfiUniversity.com.
Certification Forgery via Unsigned Certificate PDF
Progress Manipulation via Direct Enrollment API Call
Unauthorized Enrollment via Missing Authentication Gate
Cross-Site Impersonation via Shared Session Cookies
Backend Function Exposure via Unauthenticated Invocation
Cross-System Attack Surface Report
Tests cross-domain spoofing, session hijacking, token leakage, identity propagation flaws, misaligned privacy tiers, inconsistent cryptographic enforcement, and broken trust boundaries across all nine connected systems.
Cross-Domain Session Hijacking via Token Forwarding
Identity Propagation Flaw: Stale Identity Across Systems
Misaligned Privacy Tiers Across System Boundary
Broken Trust Boundary: Academy → University Identity Bridge
Inconsistent Cryptographic Enforcement Across Node Types
Spoofing Vulnerability Matrix
| Attack Vector | Target System | Severity | Current Status | Primary Control |
|---|---|---|---|---|
| Identity token replay | All systems | CRITICAL | PARTIAL | Token TTL + nonce binding |
| Signature forgery | DOSFI.ai identity fabric | HIGH | REVIEW | Ed25519 enforcement |
| Subdomain identity confusion | Academy / University | HIGH | PARTIAL | Canonical identity validation |
| Node certificate reuse | 20-node mesh | HIGH | PARTIAL | Hardware-bound certificates |
| DIU issuance spoofing | MeshNativeExchange | CRITICAL | FAIL | Verified execution receipts |
| Inference result substitution | MeshInfer.ai | CRITICAL | REVIEW | Node-signed result envelopes |
| Model spoofing | MeshInfer.ai | HIGH | PARTIAL | Model artifact SHA-256 pinning |
| Routing table poisoning | DOSFI Runtime | CRITICAL | REVIEW | Signed routing updates |
| Certification forgery | DosfiUniversity.com | HIGH | PARTIAL | Server-issued verification codes |
| Settlement log tampering | MeshNativeExchange | HIGH | REVIEW | Append-only cryptographic chain |
Identity Fabric Hardening Plan
Token Lifecycle Controls
- Enforce TTL ≤ 5 minutes on all cross-system tokens
- Bind tokens to one-time nonces; reject nonce reuse
- Mandate Ed25519 signing; reject algorithm downgrade
- Enforce strict audience (aud) claim validation per system
Identity Revocation
- Real-time revocation event bus (≤30s propagation)
- Revocation cache checked before every token acceptance
- Revoked identities cannot recover via email-only flow
- MFA required for all identity recovery operations
Privacy Tier Integrity
- Privacy tier enforced at node level, independent of claims
- Most restrictive tier applied when claims are ambiguous
- Privacy tier re-evaluated at every inference handoff
- Cross-system tier downgrade triggers task rejection
Identity Propagation
- Identity change events broadcast to all connected systems
- Connected systems honor invalidation before TTL expiry
- Stale identity view triggers re-authentication flow
- Audit log for all cross-system identity propagation events
Remediation Plan
| Priority | ID | Action | Affected Systems | Effort | Impact |
|---|---|---|---|---|---|
| P1 | REM-001 | Enforce token TTL ≤ 5 minutes with nonce binding on all cross-system tokens | All DOSFI systems | Medium | CRITICAL |
| P2 | REM-002 | Implement real-time identity revocation event bus propagating to all verifiers within 30 seconds | DOSFI.ai / All connected systems | High | CRITICAL |
| P3 | REM-003 | Mandate Ed25519 signing at all identity issuance endpoints; reject non-compliant algorithms | DOSFI.ai identity fabric | Medium | HIGH |
| P4 | REM-004 | Implement two-phase DIU issuance commit with cryptographically verified execution receipts | MeshNativeExchange / Enterprise nodes | High | CRITICAL |
| P5 | REM-005 | Require node join attestation: registration token + hardware attestation validated by mesh coordinator | 20-node mesh / All mesh nodes | High | CRITICAL |
| P6 | REM-006 | Sign all inference results at the executing node; consumers must verify signature before accepting | MeshInfer.ai | Medium | CRITICAL |
| P7 | REM-007 | Enforce strict audience (aud) claims; reject cross-system token forwarding | All DOSFI APIs | Low | HIGH |
| P8 | REM-008 | Bind node identity certificates to hardware entropy; make certificates non-exportable | All mesh nodes | High | HIGH |
| P9 | REM-009 | Implement append-only settlement log with cryptographic entry chaining; alert on chain breaks | MeshNativeExchange | Medium | HIGH |
| P10 | REM-010 | Add server-issued verification codes to all certificates; validate on CredentialVerification page | DosfiUniversity.com | Medium | HIGH |
| P11 | REM-011 | Enforce privacy tier re-evaluation at every node handling an inference task | MeshInfer.ai / Enterprise nodes | Medium | HIGH |
| P12 | REM-012 | Define and publish unified cryptographic standard; enforce TLS 1.3+, Ed25519, SHA-256 across all node types | All mesh node types and agents | Medium | HIGH |
This report is for internal engineering review only. Findings must not be shared externally. All CRITICAL and FAIL items require resolution before enterprise node admission or production Vital settlement is enabled.