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CVE-2021-22931

9.8 · CRITICAL

Node.js before 16.6.0, 14.17.4, and 12.22.4 is vulnerable to Remote Code Execution, XSS, Application crashes due to missing input validation of host names returned by Domain Name Servers in Node.js…

Published Aug 16, 2021CWE-170EPSS 21.95%

Overview

CVE-2021-22931 is a critical-severity vulnerability. It was published on August 16, 2021 and has a CVSS 3.1 base score of 9.8 (CRITICAL).

This vulnerability has a CVSS 3.1 base score of 9.8, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

Node.js before 16.6.0, 14.17.4, and 12.22.4 is vulnerable to Remote Code Execution, XSS, Application crashes due to missing input validation of host names returned by Domain Name Servers in Node.js dns library which can lead to output of wrong hostnames (leading to Domain Hijacking) and injection vulnerabilities in applications using the library.

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

Refcert-portal.siemens.com/productcert/pdf/ssa-389290.pdfRefhackerone.com/reports/1178337Refnodejs.org/en/blog/vulnerability/aug-2021-security-releases/Refsecurity.gentoo.org/glsa/202401-02Refsecurity.netapp.com/advisory/ntap-20210923-0001/Refsecurity.netapp.com/advisory/ntap-20211022-0003/Refwww.oracle.com/security-alerts/cpujan2022.htmlRefwww.oracle.com/security-alerts/cpujul2022.htmlRefwww.oracle.com/security-alerts/cpuoct2021.htmlRefcert-portal.siemens.com/productcert/pdf/ssa-389290.pdf

How CyberStrike helps

Frequently asked questions

What is CVE-2021-22931?

CVE-2021-22931 is a critical-severity vulnerability. It was published on August 16, 2021 and has a CVSS 3.1 base score of 9.8 (CRITICAL).

How severe is CVE-2021-22931?

This vulnerability has a CVSS 3.1 base score of 9.8, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2021-22931?

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-2021-22931?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2021-22931 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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