Go to homepageCyberStrike

Menu

Star on GitHub · 3.2k
Sign inDownload

CVE-2016-4554

8.6 · HIGH

mime_header.cc in Squid before 3.5.18 allows remote attackers to bypass intended same-origin restrictions and possibly conduct cache-poisoning attacks via a crafted HTTP Host header, aka a "header…

Published May 10, 2016CWE-345EPSS 38.89%

Overview

CVE-2016-4554 is a high-severity vulnerability. It was published on May 10, 2016 and has a CVSS 3.0 base score of 8.6 (HIGH).

This vulnerability has a CVSS 3.0 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

mime_header.cc in Squid before 3.5.18 allows remote attackers to bypass intended same-origin restrictions and possibly conduct cache-poisoning attacks via a crafted HTTP Host header, aka a "header smuggling" 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

Reflists.opensuse.org/opensuse-security-announce/2016-08/msg00010.htmlReflists.opensuse.org/opensuse-security-announce/2016-08/msg00040.htmlReflists.opensuse.org/opensuse-updates/2016-08/msg00069.htmlRefwww.debian.org/security/2016/dsa-3625Refwww.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.htmlRefwww.securitytracker.com/id/1035769Refwww.squid-cache.org/Advisories/SQUID-2016_8.txtRefwww.squid-cache.org/Versions/v3/3.1/changesets/SQUID-2016_8.patchRefwww.squid-cache.org/Versions/v3/3.2/changesets/SQUID-2016_8.patchRefwww.squid-cache.org/Versions/v3/3.3/changesets/SQUID-2016_8.patch

How CyberStrike helps

Frequently asked questions

What is CVE-2016-4554?

CVE-2016-4554 is a high-severity vulnerability. It was published on May 10, 2016 and has a CVSS 3.0 base score of 8.6 (HIGH).

How severe is CVE-2016-4554?

This vulnerability has a CVSS 3.0 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-2016-4554?

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-2016-4554?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2016-4554 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.

Related HIGH CVEs from 2016

View all
Browse by year2026202520242023202220212020201920182017201620152014201320122011201020092008200720062005200420032002200120001999