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CVE-2021-44532

5.3 · MEDIUM

Node.js < 12.22.9, < 14.18.3, < 16.13.2, and < 17.3.1 converts SANs (Subject Alternative Names) to a string format.

Published Feb 24, 2022CWE-296EPSS 10.36%

Overview

CVE-2021-44532 is a medium-severity vulnerability. It was published on February 24, 2022 and has a CVSS 3.1 base score of 5.3 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 5.3, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

Node.js < 12.22.9, < 14.18.3, < 16.13.2, and < 17.3.1 converts SANs (Subject Alternative Names) to a string format. It uses this string to check peer certificates against hostnames when validating connections. The string format was subject to an injection vulnerability when name constraints were used within a certificate chain, allowing the bypass of these name constraints.Versions of Node.js with the fix for this escape SANs containing the problematic characters in order to prevent the injection. This behavior can be reverted through the --security-revert command-line option.

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

Refhackerone.com/reports/1429694Refnodejs.org/en/blog/vulnerability/jan-2022-security-releases/Refsecurity.netapp.com/advisory/ntap-20220325-0007/Refwww.debian.org/security/2022/dsa-5170Refwww.oracle.com/security-alerts/cpuapr2022.htmlRefwww.oracle.com/security-alerts/cpujul2022.htmlRefhackerone.com/reports/1429694Refnodejs.org/en/blog/vulnerability/jan-2022-security-releases/Refsecurity.netapp.com/advisory/ntap-20220325-0007/Refwww.debian.org/security/2022/dsa-5170

How CyberStrike helps

Frequently asked questions

What is CVE-2021-44532?

CVE-2021-44532 is a medium-severity vulnerability. It was published on February 24, 2022 and has a CVSS 3.1 base score of 5.3 (MEDIUM).

How severe is CVE-2021-44532?

This vulnerability has a CVSS 3.1 base score of 5.3, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2021-44532?

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-2021-44532?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2021-44532 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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