VNX-477 – Use of Obsolete Function

Overview

VNX-477 maps to CWE-477: Use of Obsolete Function. Detects source patterns associated with CWE-477 (Use of Obsolete Function). Each finding should be manually reviewed for exploitability in context.

Severity: Low | CWE: CWE-477 | Languages: java, python

Why This Matters

This weakness class (Use of Obsolete Function) creates a concrete exploit surface: the rule searches for the concrete source-level patterns most commonly associated with CWE-477 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 '@Deprecated' pattern
@Deprecated

// FLAGGED: contains 'warnings.warn("Deprecated' pattern
warnings.warn("Deprecated

Remediation

  1. Review each flagged line and determine whether the pattern represents a real instance of CWE-477 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-477 comment on the line.
  4. Ensure equivalent test coverage exists to prevent regression.

References