VNX-940 – Improper Verification of Source of a Communication Channel

Overview

VNX-940 maps to CWE-940: Improper Verification of Source of a Communication Channel. Detects source patterns associated with CWE-940 (Improper Verification of Source of a Communication Channel). Each finding should be manually reviewed for exploitability in context.

Severity: Medium | CWE: CWE-940 | Languages: java

Why This Matters

This weakness class (Improper Verification of Source of a Communication Channel) creates a concrete exploit surface: the rule searches for the concrete source-level patterns most commonly associated with CWE-940 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 'URI.create(' pattern
URI.create(

Remediation

  1. Review each flagged line and determine whether the pattern represents a real instance of CWE-940 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-940 comment on the line.
  4. Ensure equivalent test coverage exists to prevent regression.

References