VNX-915 – Improperly Controlled Modification of Dynamically-Determined Object Attributes

Overview

VNX-915 maps to CWE-915: Improperly Controlled Modification of Dynamically-Determined Object Attributes. Detects source patterns associated with CWE-915 (Improperly Controlled Modification of Dynamically-Determined Object Attributes). Each finding should be manually reviewed for exploitability in context.

Severity: High | CWE: CWE-915 | Languages: node, ruby

Why This Matters

This weakness class (Improperly Controlled Modification of Dynamically-Determined Object Attributes) creates a concrete exploit surface: the rule searches for the concrete source-level patterns most commonly associated with CWE-915 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 'Object.assign(' pattern
Object.assign(

// FLAGGED: contains 'update_attributes(' pattern
update_attributes(

Remediation

  1. Review each flagged line and determine whether the pattern represents a real instance of CWE-915 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-915 comment on the line.
  4. Ensure equivalent test coverage exists to prevent regression.

References