This affects the package convict prior to 6.2.3. This is a bypass of [CVE-2022-22143](security.snyk.io/vuln/SNYK-JS-CONVICT-2340604). The [fix](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.
| Vulnerable Product | Search on Vulmon | Subscribe to Product |
|---|---|---|
mozilla convict |
Vulmon