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CVE-2023-52079

6.8 · MEDIUM

msgpackr is a fast MessagePack NodeJS/JavaScript implementation.

Published Dec 28, 2023CWE-674EPSS 0.69%

Overview

CVE-2023-52079 is a medium-severity vulnerability. It was published on December 28, 2023 and has a CVSS 3.1 base score of 6.8 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 6.8, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

msgpackr is a fast MessagePack NodeJS/JavaScript implementation. Prior to 1.10.1, when decoding user supplied MessagePack messages, users can trigger stuck threads by crafting messages that keep the decoder stuck in a loop. The fix is available in v1.10.1.

Exploits seem to require structured cloning, replacing the 0x70 extension with your own (that throws an error or does something other than recursive referencing) should mitigate the issue.

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

GitHubgithub.com/kriszyp/msgpackr/commit/18f44f8800e2261341cdf489d1ba1e35a0133602GitHubgithub.com/kriszyp/msgpackr/security/advisories/GHSA-7hpj-7hhx-2fgxGitHubgithub.com/kriszyp/msgpackr/commit/18f44f8800e2261341cdf489d1ba1e35a0133602GitHubgithub.com/kriszyp/msgpackr/security/advisories/GHSA-7hpj-7hhx-2fgx

How CyberStrike helps

Frequently asked questions

What is CVE-2023-52079?

CVE-2023-52079 is a medium-severity vulnerability. It was published on December 28, 2023 and has a CVSS 3.1 base score of 6.8 (MEDIUM).

How severe is CVE-2023-52079?

This vulnerability has a CVSS 3.1 base score of 6.8, 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-2023-52079?

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-2023-52079?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2023-52079 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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