VNX-430 – Deployment of Wrong Handler

Overview

VNX-430 maps to CWE-430: Deployment of Wrong Handler. Detects source patterns associated with CWE-430 (Deployment of Wrong Handler). Each finding should be manually reviewed for exploitability in context.

Severity: Low | CWE: CWE-430 | Languages: node, python

Why This Matters

This weakness class (Deployment of Wrong Handler) creates a concrete exploit surface: the rule searches for the concrete source-level patterns most commonly associated with CWE-430 and surfaces them for review. Each finding should be evaluated in context — the rule catches the pattern, not the context.

What Gets Flagged

// FLAGGED: contains '@app.errorhandler(Exception)' pattern
@app.errorhandler(Exception)

Remediation

  1. Review each flagged line and determine whether the pattern represents a real instance of CWE-430 or a false positive.
  2. Replace the flagged construct with a documented safe alternative appropriate to your language and framework.
  3. For confirmed false positives, add a # vulnetix-ignore: VNX-430 comment on the line.
  4. Ensure equivalent test coverage exists to prevent regression.

References