GitHub Advisoryadvisory · npm
GHSA-9gxr-rhx6-4jgv Sandbox Breakout / Prototype Pollution in notevil
MEDIUM
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