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CVE-2023-50269

8.6 · HIGH

Squid is a caching proxy for the Web.

Published Dec 14, 2023CWE-674EPSS 57.63%

Overview

CVE-2023-50269 is a high-severity vulnerability. It was published on December 14, 2023 and has a CVSS 3.1 base score of 8.6 (HIGH).

This vulnerability has a CVSS 3.1 base score of 8.6, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

Squid is a caching proxy for the Web. Due to an Uncontrolled Recursion bug in versions 2.6 through 2.7.STABLE9, versions 3.1 through 5.9, and versions 6.0.1 through 6.5, Squid may be vulnerable to a Denial of Service attack against HTTP Request parsing. This problem allows a remote client to perform Denial of Service attack by sending a large X-Forwarded-For header when the follow_x_forwarded_for feature is configured. This bug is fixed by Squid version 6.6. In addition, patches addressing this problem for the stable releases can be found in Squid's patch archives.

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

Refwww.squid-cache.org/Versions/v5/SQUID-2023_10.patchRefwww.squid-cache.org/Versions/v6/SQUID-2023_10.patchGitHubgithub.com/squid-cache/squid/security/advisories/GHSA-wgq4-4cfg-c4x3Reflists.debian.org/debian-lts-announce/2024/01/msg00003.htmlReflists.fedoraproject.org/archives/list/[email protected]/message/A5QASTMCUSUEW3UOMKHZJB3FTONWSRXS/Reflists.fedoraproject.org/archives/list/[email protected]/message/MEV66D3PAAY6K7TWDT3WZBLCPLASFJDC/Refsecurity.netapp.com/advisory/ntap-20240119-0005/Refwww.squid-cache.org/Versions/v5/SQUID-2023_10.patchRefwww.squid-cache.org/Versions/v6/SQUID-2023_10.patchGitHubgithub.com/squid-cache/squid/security/advisories/GHSA-wgq4-4cfg-c4x3

How CyberStrike helps

Frequently asked questions

What is CVE-2023-50269?

CVE-2023-50269 is a high-severity vulnerability. It was published on December 14, 2023 and has a CVSS 3.1 base score of 8.6 (HIGH).

How severe is CVE-2023-50269?

This vulnerability has a CVSS 3.1 base score of 8.6, 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-2023-50269?

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-2023-50269?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2023-50269 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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