CVE-2022-21190

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Summary

CVECVE-2022-21190
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2022-05-13 20:15:00 UTC
Updated2022-05-24 14:11:00 UTC
DescriptionThis 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.

Risk And Classification

Problem Types: CWE-1321

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Mozilla Convict All All All All

References

ReferenceSourceLinkTags
Prototype Pollution in [email protected] · GitHub CONFIRM gist.github.com
More more complete fix for prototype pollution · mozilla/node-convict@1ea0ab1 · GitHub CONFIRM github.com
N/A CONFIRM github.com
Prototype Pollution in convict | CVE-2022-21190 | Snyk CONFIRM snyk.io
N/A CONFIRM github.com
node-convict/main.js at 3b86be087d8f14681a9c889d45da7fe3ad9cd880 · mozilla/node-convict · GitHub MITRE github.com
node-convict/CHANGELOG.md at master · mozilla/node-convict · GitHub MITRE github.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

LEGACY: Alessio Della Libera of Snyk Security Team

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