Files
nick-doc/Issues/ISSUE-007-sim-bypass-no-env-guard.md
Siavash Sameni a1f056e6a5 docs: align flow docs with code reality + create 35 implementation issue files
Flow docs updated (11 files):
- Delivery Confirmation: reversed actor roles (buyer generates, seller verifies),
  fixed endpoint paths (/delivery-code/generate, /delivery-code/verify)
- Passkey (WebAuthn): removed stub/simulated-key claims; real @simplewebauthn/server
  attestation is implemented; refresh tokens are persisted
- Dispute: corrected resolve schema (action enum), removed non-existent statuses,
  documented security gaps (no role guards on status/resolve/assign), route shadowing,
  all socket events are TODO stubs
- Seller Offer: corrected all endpoint paths, removed 'active' status, documented
  withdraw dead code, missing seller history page, select-offer notification gap
- Notification: corrected mark-all-read method+path, fixed GET /:id broken lookup,
  added unread-count-update socket event
- Authentication: corrected rate limiter (counts all attempts), axios 403 not handled,
  deleteAccount wrong endpoint bug, changePassword no UI
- Password Reset: corrected 6-digit code (not 8), documented no-complexity gap on
  reset-with-code vs token reset
- Payment Flow DePay: /create→/save, removed phantom sub-routes, SIM_ bypass risk,
  PaymentProvider type gap, getProviderIntentEndpoint routing bug
- Payment Flow SHKeeper: removed phantom polling endpoint, fixed release/refund paths
- Purchase Request: added pending_payment/active statuses, fixed sellers/attachments
  endpoints, corrected socket events, PUT→PATCH bug
- Escrow: documented dispute resolve does not touch escrow, route shadowing, confirm-delivery auth gap

Issues created (35 files in Issues/):
- 9 security issues (critical) including: dispute privilege escalation ×4,
  unauthenticated payment/scanner endpoints ×2, SIM_ production bypass,
  confirm-delivery ownership gap
- 26 additional major/critical bugs covering broken endpoints, missing features,
  data integrity gaps, and frontend-backend mismatches

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
2026-05-29 14:47:49 +04:00

1.9 KiB

issue, title, severity, domain, labels, status, created, source
issue title severity domain labels status created source
007 SIM_ transaction bypass active in production — no NODE_ENV guard on wallet connection fallback critical payment
security
frontend
backend
bug
open 2026-05-29 Doc vs Code Audit 2026-05-29

🔴 SIM_ transaction bypass active in production — no NODE_ENV guard on wallet connection fallback

Severity: critical Domain: payment Labels: security, frontend, backend, bug

Description

frontend/src/web3/context/web3-provider.tsx (lines ~225 and ~232) generates SIM_ prefixed transaction hashes when wallet connection fails, and passes these to the backend as real transaction hashes.

The backend's payment service skips all on-chain verification for any paymentHash starting with SIM_. This bypass is controlled only by the hash prefix — there is no process.env.NODE_ENV === 'development' check in either the frontend or backend.

In production, if a user's wallet connection times out or throws (e.g., network error, MetaMask not responding), the frontend will submit a SIM_ hash. This can result in a payment record being created as completed without any actual on-chain transaction.

Current Behavior

Wallet connection failure → frontend generates SIM_xxxxxxxx hash → sends to backend → backend skips on-chain verification → payment created as completed.

Expected Behavior

  • Frontend: SIM_ hash generation should be gated on process.env.NODE_ENV !== 'production'
  • Backend: SIM_ bypass should additionally check an environment flag (e.g., process.env.ALLOW_SIM_PAYMENTS !== 'true')

Affected Files

  • frontend/src/web3/context/web3-provider.tsx — lines ~225, ~232
  • backend/src/services/payment/ — SIM_ prefix check in payment verification logic

References