CVE-2016-4553

squid: Cache poisoning issue in HTTP Request handling

Severity Score

8.6

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

client_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.

client_side.cc en Squid en versiones anteriores a 3.5.18 y 4.x en versiones anteriores a 4.0.10 no ignora correctamente la cabecera Host cuando se proporciona una URI absoluta, lo que permite a atacantes remotos llevar a cabo ataques de envenenamiento de caché a través de una petición HTTP.

An input validation flaw was found in the way Squid handled intercepted HTTP Request messages. An attacker could use this flaw to bypass the protection against issues related to CVE-2009-0801, and perform cache poisoning attacks on Squid.

*Credits: N/A

CVSS Scores

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Changed

Confidentiality

None

Integrity

High

Availability

None

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

Partial

Availability

None

Attack Vector

Network

Attack Complexity

Medium

Authentication

None

Confidentiality

None

Integrity

Partial

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2016-05-06 CVE Reserved
2016-05-10 CVE Published
2024-05-05 EPSS Updated
2024-08-06 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-20: Improper Input Validation
CWE-345: Insufficient Verification of Data Authenticity

CAPEC

References (15)

URL	Tag	Source
http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html	Third Party Advisory
http://www.securitytracker.com/id/1035768	Third Party Advisory
http://www.squid-cache.org/Versions/v3/3.5/changesets/squid-3.5-14039.patch	X_refsource_confirm

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
http://bugs.squid-cache.org/show_bug.cgi?id=4501	2019-12-27
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00010.html	2019-12-27
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00040.html	2019-12-27
http://lists.opensuse.org/opensuse-updates/2016-08/msg00069.html	2019-12-27
http://www.debian.org/security/2016/dsa-3625	2019-12-27
http://www.squid-cache.org/Advisories/SQUID-2016_7.txt	2019-12-27
http://www.ubuntu.com/usn/USN-2995-1	2019-12-27
https://access.redhat.com/errata/RHSA-2016:1139	2019-12-27
https://access.redhat.com/errata/RHSA-2016:1140	2019-12-27
https://security.gentoo.org/glsa/201607-01	2019-12-27
https://access.redhat.com/security/cve/CVE-2016-4553	2016-05-31
https://bugzilla.redhat.com/show_bug.cgi?id=1334233	2016-05-31

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				12.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "12.04"		lts		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				14.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "14.04"		lts		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				15.10 Search vendor "Canonical" for product "Ubuntu Linux" and version "15.10"		-		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				16.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "16.04"		lts		Affected
Squid-cache Search vendor "Squid-cache"		Squid Search vendor "Squid-cache" for product "Squid"				<= 3.5.17 Search vendor "Squid-cache" for product "Squid" and version " <= 3.5.17"		-		Affected
Squid-cache Search vendor "Squid-cache"		Squid Search vendor "Squid-cache" for product "Squid"				4.0.1 Search vendor "Squid-cache" for product "Squid" and version "4.0.1"		-		Affected
Squid-cache Search vendor "Squid-cache"		Squid Search vendor "Squid-cache" for product "Squid"				4.0.2 Search vendor "Squid-cache" for product "Squid" and version "4.0.2"		-		Affected
Squid-cache Search vendor "Squid-cache"		Squid Search vendor "Squid-cache" for product "Squid"				4.0.3 Search vendor "Squid-cache" for product "Squid" and version "4.0.3"		-		Affected
Squid-cache Search vendor "Squid-cache"		Squid Search vendor "Squid-cache" for product "Squid"				4.0.4 Search vendor "Squid-cache" for product "Squid" and version "4.0.4"		-		Affected
Squid-cache Search vendor "Squid-cache"		Squid Search vendor "Squid-cache" for product "Squid"				4.0.5 Search vendor "Squid-cache" for product "Squid" and version "4.0.5"		-		Affected
Squid-cache Search vendor "Squid-cache"		Squid Search vendor "Squid-cache" for product "Squid"				4.0.6 Search vendor "Squid-cache" for product "Squid" and version "4.0.6"		-		Affected
Squid-cache Search vendor "Squid-cache"		Squid Search vendor "Squid-cache" for product "Squid"				4.0.7 Search vendor "Squid-cache" for product "Squid" and version "4.0.7"		-		Affected
Squid-cache Search vendor "Squid-cache"		Squid Search vendor "Squid-cache" for product "Squid"				4.0.8 Search vendor "Squid-cache" for product "Squid" and version "4.0.8"		-		Affected
Squid-cache Search vendor "Squid-cache"		Squid Search vendor "Squid-cache" for product "Squid"				4.0.9 Search vendor "Squid-cache" for product "Squid" and version "4.0.9"		-		Affected
Oracle Search vendor "Oracle"		Linux Search vendor "Oracle" for product "Linux"				7 Search vendor "Oracle" for product "Linux" and version "7"		-		Affected