CVSS: 9.8EPSS: 0%CPEs: 1EXPL: 2CVE-2022-21190 – Prototype Pollution
https://notcve.org/view.php?id=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. • https://gist.github.com/dellalibera/cebce20e51410acebff1f46afdc89808 https://github.com/mozilla/node-convict/blob/3b86be087d8f14681a9c889d45da7fe3ad9cd880/packages/convict/src/main.js%23L571 https://github.com/mozilla/node-convict/blob/master/CHANGELOG.md%23623---2022-05-07 https://github.com/mozilla/node-convict/commit/1ea0ab19c5208f66509e1c43b0d0f21c1fd29b75 https://snyk.io/vuln/SNYK-JS-CONVICT-2774757 • CWE-1321: Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution') •
CVSS: 9.8EPSS: 0%CPEs: 1EXPL: 1CVE-2022-22143 – Prototype Pollution
https://notcve.org/view.php?id=CVE-2022-22143
The package convict before 6.2.2 are vulnerable to Prototype Pollution via the convict function due to missing validation of parentKey. **Note:** This vulnerability derives from an incomplete fix of another [vulnerability](https://security.snyk.io/vuln/SNYK-JS-CONVICT-1062508) El paquete convict versiones anteriores a 6.2.2, son vulnerables a una Contaminación de Prototipos por medio de la función convict debido a la falta de comprobación de parentKey. **Nota:** Esta vulnerabilidad deriva de una corrección incompleta de otra [vulnerabilidad](https://security.snyk.io/vuln/SNYK-JS-CONVICT-1062508) • https://github.com/mozilla/node-convict/blob/5eb1314f85346760a3c31cb14510f2f0af11d0d3/packages/convict/src/main.js%23L569 https://github.com/mozilla/node-convict/commit/3b86be087d8f14681a9c889d45da7fe3ad9cd880 https://snyk.io/vuln/SNYK-JS-CONVICT-2340604 • CWE-1321: Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution') •