VNX-289 – Authentication Bypass by Alternate Name

Overview

VNX-289 maps to CWE-289: Authentication Bypass by Alternate Name. Detects source patterns associated with CWE-289 (Authentication Bypass by Alternate Name). Each finding should be manually reviewed for exploitability in context.

Severity: High | CWE: CWE-289 | Languages: java, node, python

Why This Matters

This weakness class (Authentication Bypass by Alternate Name) creates a concrete exploit surface: the rule searches for the concrete source-level patterns most commonly associated with CWE-289 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 'toLowerCase()' pattern
toLowerCase()

Remediation

  1. Review each flagged line and determine whether the pattern represents a real instance of CWE-289 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-289 comment on the line.
  4. Ensure equivalent test coverage exists to prevent regression.

References