CVE-2016-4553

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Summary

CVECVE-2016-4553
StatePUBLISHED
Assignermitre
Source PriorityCVE Program / NVD first with legacy fallback
Published2016-05-10 19:59:00 UTC
Updated2026-05-06 22:30:45 UTC
Descriptionclient_side.cc in Squid before 3.5.18 and 4.x before 4.0.10 does not properly ignore the Host header when absolute-URI is provided, which allows remote attackers to conduct cache-poisoning attacks via an HTTP request.

Risk And Classification

Primary CVSS: v3.0 8.6 HIGH from [email protected]

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N

Problem Types: CWE-345 | n/a

VersionSourceTypeScoreSeverityVector
3.0[email protected]Primary8.6HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N
2.0[email protected]Primary5AV:N/AC:L/Au:N/C:N/I:P/A:N

CVSS v3.0 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Changed
Confidentiality
None
Integrity
High
Availability
None

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N

CVSS v2.0 Breakdown

Access Vector
Network
Access Complexity
Low
Authentication
None
Confidentiality
None
Integrity
Partial
Availability
None

AV:N/AC:L/Au:N/C:N/I:P/A:N

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Canonical Ubuntu Linux 12.04 All All All
Operating System Canonical Ubuntu Linux 14.04 All All All
Operating System Canonical Ubuntu Linux 15.10 All All All
Operating System Canonical Ubuntu Linux 16.04 All All All
Operating System Oracle Linux 7 All All All
Application Squid-cache Squid 4.0.1 All All All
Application Squid-cache Squid 4.0.2 All All All
Application Squid-cache Squid 4.0.3 All All All
Application Squid-cache Squid 4.0.4 All All All
Application Squid-cache Squid 4.0.5 All All All
Application Squid-cache Squid 4.0.6 All All All
Application Squid-cache Squid 4.0.7 All All All
Application Squid-cache Squid 4.0.8 All All All
Application Squid-cache Squid 4.0.9 All All All
Application Squid-cache Squid All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified

References

ReferenceSourceLinkTags
www.squid-cache.org/Versions/v3/3.5/changesets/squid-3.5-14039.patch af854a3a-2127-422b-91ae-364da2661108 www.squid-cache.org
openSUSE-SU-2016:2081-1: moderate: Security update for squid af854a3a-2127-422b-91ae-364da2661108 lists.opensuse.org
Squid: Multiple vulnerabilities (GLSA 201607-01) — Gentoo security af854a3a-2127-422b-91ae-364da2661108 security.gentoo.org
Red Hat Customer Portal af854a3a-2127-422b-91ae-364da2661108 access.redhat.com
Red Hat Customer Portal af854a3a-2127-422b-91ae-364da2661108 access.redhat.com
Squid Host Header Processing Lets Remote Users Bypass Security and Poison the Proxy Cache - SecurityTracker af854a3a-2127-422b-91ae-364da2661108 www.securitytracker.com Third Party Advisory
[security-announce] SUSE-SU-2016:1996-1: important: Security update for af854a3a-2127-422b-91ae-364da2661108 lists.opensuse.org
USN-2995-1: Squid vulnerabilities | Ubuntu af854a3a-2127-422b-91ae-364da2661108 www.ubuntu.com Third Party Advisory
Oracle Linux Bulletin - April 2016 af854a3a-2127-422b-91ae-364da2661108 www.oracle.com Third Party Advisory
Debian -- Security Information -- DSA-3625-1 squid3 af854a3a-2127-422b-91ae-364da2661108 www.debian.org
[security-announce] SUSE-SU-2016:2089-1: important: Security update for af854a3a-2127-422b-91ae-364da2661108 lists.opensuse.org
bugs.squid-cache.org/show_bug.cgi af854a3a-2127-422b-91ae-364da2661108 bugs.squid-cache.org Vendor Advisory
www.squid-cache.org/Advisories/SQUID-2016_7.txt af854a3a-2127-422b-91ae-364da2661108 www.squid-cache.org Vendor Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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