CVE-2022-21190

This affects the package convict before 6.2.3. This is a bypass of [CVE-2022-22143](https://security.snyk.io/vuln/SNYK-JS-CONVICT-2340604). The [fix](https://github.com/mozilla/node-convict/commit/3b86be087d8f14681a9c889d45da7fe3ad9cd880) introduced, relies on the startsWith method and does not prevent the vulnerability: before splitting the path, it checks if it starts with __proto__ or this.constructor.prototype. To bypass this check it's possible to prepend the dangerous paths with any string value followed by a dot, like for example foo.__proto__ or foo.this.constructor.prototype.
Configurations

Configuration 1

cpe:2.3:a:mozilla:convict:*:*:*:*:*:node.js:*:*

Information

Published : 2022-05-13 08:15

Updated : 2022-05-24 02:11


NVD link : CVE-2022-21190

Mitre link : CVE-2022-21190

Products Affected
CWE
CWE-1321

Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')