Описание
This affects the package convict before 6.2.3. This is a bypass of CVE-2022-22143. The fix 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.
Ссылки
- ExploitThird Party Advisory
- Broken LinkPatchThird Party Advisory
- Broken LinkRelease NotesTool Signature
- PatchTool Signature
- ExploitThird Party Advisory
- ExploitThird Party Advisory
- Broken LinkPatchThird Party Advisory
- Broken LinkRelease NotesTool Signature
- PatchTool Signature
- ExploitThird Party Advisory
Уязвимые конфигурации
EPSS
7.5 High
CVSS3
9.8 Critical
CVSS3
7.5 High
CVSS2
Дефекты
Связанные уязвимости
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.
EPSS
7.5 High
CVSS3
9.8 Critical
CVSS3
7.5 High
CVSS2