GitHub Advisoryadvisory · npm

GHSA-9gxr-rhx6-4jgv Sandbox Breakout / Prototype Pollution in notevil

MEDIUM Published 2020-09-04 Modified 2020-08-31 Official page ↗
Ecosystem
npm
Packages
notevil
Severity
Moderate
Weaknesses
CWE-1321
Reviewed
2020-08-31

Affected packages

• npm notevil: < 1.3.3 → fixed in 1.3.3

Description

Versions of `notevil` prior to 1.3.3 are vulnerable to Sandbox Escape leading to Prototype pollution. The package fails to restrict access to the main context, allowing attacker to add or modify an object's prototype. Evaluating the payload ```try{a[b];}catch(e){e.constructor.constructor('return __proto__.arguments.callee.__proto__.polluted=true')()}``` add the `polluted` property to Function. Recommendation Upgrade to version 1.3.3 or later.

Related

Weakness · CWE (1)

  • CWE-1321 Improperly Controlled Modification of Object Prototype Attributes weakness

References