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.
References
Configurations
History
21 Nov 2024, 06:44
| Type | Values Removed | Values Added |
|---|---|---|
| References | () https://gist.github.com/dellalibera/cebce20e51410acebff1f46afdc89808 - Exploit, Third Party Advisory | |
| References | () https://github.com/mozilla/node-convict/blob/3b86be087d8f14681a9c889d45da7fe3ad9cd880/packages/convict/src/main.js%23L571 - Broken Link, Patch, Third Party Advisory | |
| References | () https://github.com/mozilla/node-convict/blob/master/CHANGELOG.md%23623---2022-05-07 - Broken Link, Release Notes, Tool Signature | |
| References | () https://github.com/mozilla/node-convict/commit/1ea0ab19c5208f66509e1c43b0d0f21c1fd29b75 - Patch, Tool Signature | |
| References | () https://snyk.io/vuln/SNYK-JS-CONVICT-2774757 - Exploit, Third Party Advisory | |
| CVSS |
v2 : v3 : |
v2 : 7.5
v3 : 7.5 |
Information
Published : 2022-05-13 20:15
Updated : 2024-11-21 06:44
NVD link : CVE-2022-21190
Mitre link : CVE-2022-21190
CVE.ORG link : CVE-2022-21190
JSON object : View
Products Affected
mozilla
- convict
CWE
CWE-1321
Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')