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CVE-2022-21190

7.5 · HIGH

This affects the package convict before 6.2.3.

Published May 13, 2022CWE-1321EPSS 3.97%

Overview

CVE-2022-21190 is a high-severity vulnerability. It was published on May 13, 2022 and has a CVSS 3.1 base score of 7.5 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical 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.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgist.github.com/dellalibera/cebce20e51410acebff1f46afdc89808GitHubgithub.com/mozilla/node-convict/blob/3b86be087d8f14681a9c889d45da7fe3ad9cd880/packages/convict/src/main.js%23L571GitHubgithub.com/mozilla/node-convict/blob/master/CHANGELOG.md%23623---2022-05-07GitHubgithub.com/mozilla/node-convict/commit/1ea0ab19c5208f66509e1c43b0d0f21c1fd29b75Refsnyk.io/vuln/SNYK-JS-CONVICT-2774757GitHubgist.github.com/dellalibera/cebce20e51410acebff1f46afdc89808GitHubgithub.com/mozilla/node-convict/blob/3b86be087d8f14681a9c889d45da7fe3ad9cd880/packages/convict/src/main.js%23L571GitHubgithub.com/mozilla/node-convict/blob/master/CHANGELOG.md%23623---2022-05-07GitHubgithub.com/mozilla/node-convict/commit/1ea0ab19c5208f66509e1c43b0d0f21c1fd29b75Refsnyk.io/vuln/SNYK-JS-CONVICT-2774757

How CyberStrike helps

Frequently asked questions

What is CVE-2022-21190?

CVE-2022-21190 is a high-severity vulnerability. It was published on May 13, 2022 and has a CVSS 3.1 base score of 7.5 (HIGH).

How severe is CVE-2022-21190?

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2022-21190?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2022-21190?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2022-21190 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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