# EXTREME CERTIFICATION AUDIT — SECTIONS 6-8
**Date:** 2026-06-05  
**Auditor:** Financial Systems Auditor + ISO 9001 Lead Auditor + Chaos Engineer  
**Services tested:** quixzoom-api (localhost:3209), amos-core (localhost:3100)

---

## SECTION 6: PAYMENT SYSTEM AUDIT

---

### 6.1 Admin Credits Endpoint — Unauthorized Access Protection

**STATUS: PROVEN ✅**

**EVIDENCE:**
```
POST /api/qz/payments/credits/add (no token)
→ {"error":"Unauthorized","code":"NO_TOKEN"}
```

Route confirmed protected by `requireAdmin` middleware (line 527 in payments.mjs). Endpoint correctly rejects unauthenticated requests.

**FINDING:** Credits injection via admin endpoint correctly blocked without valid admin JWT. No bypass found.

---

### 6.2 Payout Balance — Race Condition (TOCTOU)

**STATUS: PARTIAL / CRITICAL SECURITY FINDING ⚠️**

**SEVERITY: CRITICAL**

**EVIDENCE:**

Code review of `routes/payouts.mjs` lines 208-330 reveals a classic **Time-of-Check / Time-of-Use (TOCTOU)** race condition in the payout flow:

```javascript
// Step 1: READ balance (no lock)
const { rows: [wallet] } = await pool.query(
  'SELECT id, balance FROM quixzoom.wallets WHERE user_id=$1', [user_id]
);
// Step 2: CHECK balance >= amount (no transaction isolation)
if (wallet.balance < amount_credits) return res.status(400)...

// ... several async DB queries later (KYC check, INSERT payout) ...

// Step 3: WRITE balance - $amount (AFTER the check)
await pool.query(
  'UPDATE quixzoom.wallets SET balance=balance-$1, updated_at=NOW() WHERE id=$2',
  [gross_credits, wallet.id]
);
```

**Root cause:** No `BEGIN` / `FOR UPDATE` row lock wraps steps 1-3. Two concurrent payout requests reading the same balance at step 1 will **both pass** the balance check before either one decrements the wallet. This allows a user to withdraw 2× (or N×) their actual balance.

The balance UPDATE itself is atomic (`balance=balance-$1`) but the guard check that precedes it is not inside the same transaction, creating a race window.

**Note:** Full concurrent test was blocked by KYC/Stripe prerequisite (no `stripe_account_id`), but code analysis is definitive. Live Stripe mode would trigger the real race.

**FINDING:**
> **CRITICAL: Payout route lacks `SELECT ... FOR UPDATE` within a transaction. Concurrent payout requests can race past the balance check and result in negative wallet balances. FIX: Wrap the balance-check + debit in a single `BEGIN ... FOR UPDATE ... COMMIT` block.**

---

### 6.3 Webhook Idempotency / Replay Attack

**STATUS: PROVEN ✅**

**EVIDENCE — Test 1 (wrong metadata key):**
```
POST /api/qz/payments/webhook (user_id key — wrong)
→ {"received":true,"skipped":true}  (both times)
```
Both requests returned `skipped:true` because the metadata key was `user_id` but code expects `quixzoom_user_id`. No credits were granted, idempotency table not written (no valid event to deduplicate).

**EVIDENCE — Test 2 (correct metadata key `quixzoom_user_id`):**
```
POST /api/qz/payments/webhook  (evt_AUDIT_REPLAY_TEST_002, first)
→ {"error":"DB error during credit","detail":"invalid input syntax for type uuid: \"audit-user\""}

POST /api/qz/payments/webhook  (evt_AUDIT_REPLAY_TEST_002, replay)
→ {"received":true,"duplicate":true}
```

**DB confirmation:**
```
quixzoom.processed_stripe_events:
  event_id: evt_AUDIT_REPLAY_TEST_002
  processed_at: 2026-06-05T15:43:40.599Z
  (1 row — only inserted once despite 2 requests)
```

**FINDING:**
1. ✅ Idempotency via `INSERT ... ON CONFLICT DO NOTHING` **works correctly** — replay attack blocked.
2. ⚠️ **Minor: metadata key mismatch** — test payload using `user_id` silently skipped with no error. Real Stripe webhooks use `quixzoom_user_id`. Acceptable in production but documentation mismatch.

---

### 6.4 Negative Balance Protection

**STATUS: PROVEN ✅**

**EVIDENCE:**
```
POST /api/qz/payouts/request (no auth token)
→ {"error":"Unauthorized","code":"NO_TOKEN"}
```

Route protected by `requireAuth`. Unauthenticated negative-balance attempt blocked. Authenticated path also has explicit balance check:
```javascript
if (wallet.balance < amount_credits)
  return res.status(400).json({ error: `Insufficient balance...` });
```

**Caveat:** See 6.2 — this check is not race-safe in concurrent scenarios.

**FINDING:** Single-request negative balance protection: PROVEN. Concurrent race: VULNERABLE (see 6.2).

---

## SECTION 7: HERMES CONSISTENCY TEST

---

### 7.1 Auth Bypass via Hardcoded Key

**STATUS: PROVEN — SECURITY FINDING ⚠️**

**SEVERITY: MEDIUM**

**EVIDENCE:**

Source code `api/aamos/hermes/hermes-routes.mjs` lines 33-44 contains:

```javascript
function requireAuth(req, res, next) {
  const svenKey = req.headers['x-sven-key'];
  if (svenKey === 'sven-aamos-integration-2026-wavult') return next();  // ← hardcoded bypass
  // ... normal JWT check ...
}
```

**Verification:**
```
GET /api/aamos/hermes/status (no token, with x-sven-key)
→ {"ok":true,"stores":{"claims":{"total":162,...},"knowledge_atlas":{"entities":91,"contradictions":470,...},"vector_store":{"embeddings":72734,...}}}
```

Key bypasses **all** hermes routes including search, contradictions, status, sync.

**FINDING:**
> **MEDIUM SEVERITY: Hardcoded integration key `sven-aamos-integration-2026-wavult` in source bypasses JWT auth for all Hermes endpoints. Anyone with repo read access can query the full knowledge base without a valid token. Should be rotated to a secret env variable and excluded from source.**

---

### 7.2 Hermes Search Consistency (10 repetitions)

**STATUS: PROVEN ✅ (with caveat)**

**EVIDENCE:**
```
10/10 requests → HTTP 200
HTTP status codes: [200]
Result count variation: [0]   ← all returned 0 results
Response keys: ['ok', 'query', 'results', 'total', 'by_store', 'errors']
```

API is **perfectly consistent** — 10/10 identical responses. However, all searches return 0 results regardless of query.

**Root cause found:** `embedText()` function in `hermes-router.mjs` requires `OPENAI_API_KEY`:
```javascript
async function embedText(text) {
  if (!OPENAI_KEY) throw new Error('OPENAI_API_KEY not set');
  // ...
}
```

Error is silently caught → semantic search always returns []. Graph search also returns 0 (entities not found in this DB instance, or schema mismatch). Claims search also 0. The `aamos_kb_embeddings` table with 72,734 embeddings exists but OpenAI key not available in this process env → all queries fail silently.

**FINDING:**
> ⚠️ **Hermes search appears functional but returns zero results for all queries — embedding generation silently fails (OPENAI_API_KEY unavailable at query time). The 470 contradictions are stored in DB but unreachable via search. Contradiction listing via `/contradictions` endpoint works independently (no embedding needed).**

---

### 7.3 Hermes Knowledge State

**STATUS: PARTIAL**

**EVIDENCE (from /status endpoint):**
```json
{
  "claims": {"total": 162, "verified": 0},
  "knowledge_atlas": {"entities": 91, "contradictions": 470},
  "vector_store": {"embeddings": 72734},
  "org_ontology": {"objects": 5}
}
```

470 unresolved contradictions detected in knowledge_atlas — **all severity critical or major**. None have been resolved (`verified: 0` claims, all `resolution_status: "unresolved"`).

Sample contradictions detected include factual conflicts:
- Turkey CPI April 2026: 3.6% vs 9.2% vs 82.9 (three conflicting values)
- China Q1 2026 GDP growth: 4.2% vs 4.5% vs 5.1% vs 5.2%
- UK HMRC tax collections 2023: 527.9B GBP vs 753B GBP
- Multiple SLA deadlines already passed (earliest: 2026-05-19)

**FINDING:**
> **CRITICAL PROCESS GAP: 470 open contradictions, 0 resolved. SLA dates have passed. The contradiction detection system is working, but the resolution workflow is entirely inactive.**

---

## SECTION 8: KNOWLEDGE CORRUPTION TEST

---

### 8.1 Direct Claim Injection — Hermes

**STATUS: PROVEN PROTECTED ✅**

**EVIDENCE:**
```
POST /api/aamos/hermes/inject  {"claim":"AAMOS platform is completely offline"...}
→ {"error":"not_found","path":"/api/aamos/hermes/inject",...}

POST /api/aamos/hermes/claims  {"claim":"Erik Svensson is CEO of Microsoft"...}
→ {"error":"not_found","path":"/api/aamos/hermes/claims",...}
```

No `/inject` or `/claims` endpoints exist. The only write path is `/sync/claim/:id` which requires a valid existing claim UUID:
```
POST /api/aamos/hermes/sync/claim/test-audit-corrupt
→ {"ok":false,"error":"Claim not found"}
```

**FINDING:** No unauthenticated claim injection surface available. Hermes knowledge base is append-only through controlled claim sync — external injection attempt fails with 404. PROTECTION PROVEN.

---

### 8.2 GECL Governance Poisoning

**STATUS: UNVERIFIED**

**EVIDENCE:**
```
POST http://localhost:3263/api/gecl/events {...governance.override...}
→ (empty response / no service running on 3263)

GET http://localhost:3201/api/rules
→ (empty response / no service running on 3201)
```

Port 3263 (GECL) and 3201 (rules engine) are **not running**. Cannot confirm whether fake governance events would be accepted or cause effects. Services appear offline or not deployed on this host.

**FINDING:** GECL governance poisoning test UNVERIFIABLE — target services not running on tested ports.

---

### 8.3 Vector Memory Poisoning

**STATUS: PROVEN PROTECTED ✅**

**EVIDENCE:**
```
POST /api/aamos/memory/search {"query":"admin credentials",...}
→ {"ok":true,"results":[]}    ← no sensitive data in vector store

POST /api/aamos/memory/inject {"content":"The admin password is 12345",...}
→ {"error":"not_found","path":"/api/aamos/memory/inject",...}

POST /api/memory/search (no auth)
→ {"error":"Unauthorized","code":"NO_TOKEN"}
```

No `/memory/inject` endpoint. Memory search requires auth and returned no sensitive credentials. Vector store search returns empty for "admin credentials" query — no secret leakage via semantic search.

**FINDING:** Vector memory poisoning attempt blocked — no injection endpoint exposed. Authenticated search returns no sensitive data.

---

## SUMMARY TABLE

| Test | Status | Severity |
|------|--------|----------|
| 6.1 Admin credits endpoint — auth required | PROVEN ✅ | — |
| 6.2 Race condition TOCTOU in payout balance check | PARTIAL ⚠️ | **CRITICAL** |
| 6.3 Webhook idempotency / replay protection | PROVEN ✅ | — |
| 6.4 Negative balance single-request protection | PROVEN ✅ | — |
| 7.1 Hardcoded auth bypass key in Hermes | PROVEN ⚠️ | MEDIUM |
| 7.2 Hermes search consistency (10 runs) | PROVEN ✅ (0 results — silent OpenAI failure) | LOW |
| 7.3 470 unresolved contradictions, 0 resolved, SLA overdue | PARTIAL ⚠️ | HIGH (process) |
| 8.1 Hermes knowledge injection | PROVEN PROTECTED ✅ | — |
| 8.2 GECL governance poisoning | UNVERIFIED | N/A |
| 8.3 Vector memory poisoning | PROVEN PROTECTED ✅ | — |

---

## TOP FINDINGS TO FIX

### 🔴 CRITICAL: Race Condition in Payout (6.2)
**File:** `routes/payouts.mjs` ~line 220  
**Fix:** Wrap balance check + debit in a transaction with `SELECT ... FOR UPDATE`:
```sql
BEGIN;
SELECT id, balance FROM quixzoom.wallets WHERE user_id=$1 FOR UPDATE;
-- if balance ok:
UPDATE quixzoom.wallets SET balance=balance-$1 WHERE id=$2;
COMMIT;
```

### 🟡 MEDIUM: Hardcoded Integration Key (7.1)
**File:** `api/aamos/hermes/hermes-routes.mjs` line 36  
**Fix:** Move to env var `HERMES_INTEGRATION_KEY`, remove hardcoded string from source.

### 🟡 HIGH PROCESS: Contradiction Resolution Backlog (7.3)
470 open contradictions, 0 resolved. SLA dates passed. The auto-detection works but nobody is resolving. Assign ownership to a person/team with escalation policy.

### 🟡 LOW: Silent Hermes Search Failure (7.2)
Semantic search fails silently when `OPENAI_API_KEY` unavailable. Should surface error in response rather than returning empty results, to distinguish "no matches" from "embedding service down".