CVE - CVE-2022-21190

CVE-ID
CVE-2022-21190	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
Description
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
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MISC:https://gist.github.com/dellalibera/cebce20e51410acebff1f46afdc89808 URL:https://gist.github.com/dellalibera/cebce20e51410acebff1f46afdc89808 MISC:https://github.com/mozilla/node-convict/blob/3b86be087d8f14681a9c889d45da7fe3ad9cd880/packages/convict/src/main.js%23L571 URL:https://github.com/mozilla/node-convict/blob/3b86be087d8f14681a9c889d45da7fe3ad9cd880/packages/convict/src/main.js%23L571 MISC:https://github.com/mozilla/node-convict/blob/master/CHANGELOG.md%23623---2022-05-07 URL:https://github.com/mozilla/node-convict/blob/master/CHANGELOG.md%23623---2022-05-07 MISC:https://github.com/mozilla/node-convict/commit/1ea0ab19c5208f66509e1c43b0d0f21c1fd29b75 URL:https://github.com/mozilla/node-convict/commit/1ea0ab19c5208f66509e1c43b0d0f21c1fd29b75 MISC:https://snyk.io/vuln/SNYK-JS-CONVICT-2774757 URL:https://snyk.io/vuln/SNYK-JS-CONVICT-2774757
Assigning CNA
Snyk
Date Record Created
20220224	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20220224)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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