cachemgr.cgi in Squid 3.1.x and 3.2.x, possibly 3.1.22, 3.2.4, and other versions, allows remote attackers to cause a denial of service (resource consumption) via a crafted request. NOTE: this issue is due to an incorrect fix for CVE-2012-5643, possibly involving an incorrect order of arguments or incorrect comparison.

The remote Solaris system is missing necessary patches to address security updates :

  - Multiple memory leaks in tools/cachemgr.cc in     cachemgr.cgi in Squid 2.x and 3.x before 3.1.22, 3.2.x     before 3.2.4, and 3.3.x before 3.3.0.2 allow remote     attackers to cause a denial of service (memory     consumption) via (1) invalid Content-Length headers, (2)     long POST requests, or (3) crafted authentication     credentials. (CVE-2012-5643)

  - cachemgr.cgi in Squid 3.1.x and 3.2.x, possibly 3.1.22,     3.2.4, and other versions, allows remote attackers to     cause a denial of service (resource consumption) via a     crafted request. NOTE: this issue is due to an incorrect     fix for CVE-2012-5643, possibly involving an incorrect     order of arguments or incorrect comparison.
    (CVE-2013-0189)

This squid update includes several security fixes and minor changes.

  -     squid-2.7.x-bnc829084-CVE-2013-4115-BO_request_handling.
    diff Squid advisory SQUID-2013_2, CVE-2013-4115,     [bnc#829084] Specially crafted http requests can trigger     a buffer overflow when squid attempts to resolve an     overly long hostname.

  -     squid-2.7.x-bnc796999-bnc794954-CVE-2012-5643-CVE-2013-0     188-cachemgr_cgi_dos.diff memory leak in cachemgr.cgi     known as CVE-2013-0189, which is the underfixed     CVE-2012-5643 problem. [bnc#796999] [bnc#794954]

  - run logrotate as squid:nogroup [bnc#677335]

The remote host is affected by the vulnerability described in GLSA-201309-22 (Squid: Multiple vulnerabilities)

    Multiple vulnerabilities have been discovered in Squid. Please review       the CVE identifiers referenced below for details.
  Impact :

    A remote attacker may be able to bypass ACL restrictions or cause a       Denial of Service condition.
  Workaround :

    There is no known workaround at this time.

Updated squid packages fix security vulnerability :

Due to missing input validation, the Squid cachemgr.cgi tool in Squid before 3.1.22 and 3.2.4 is vulnerable to a denial of service attack when processing specially crafted requests (CVE-2012-5643).

It was discovered that the patch for CVE-2012-5643 was incorrect. A remote attacker could exploit this flaw to perform a denial of service attack (CVE-2013-0189).

A denial of service problem in Squid3 initiated via invalid Content-Length headers and memory leaks has been fixed. (CVE-2012-5643 / CVE-2013-0189, SQUID-2012:1)

Also a logrotate permission issue has been fixed.

Squid3, a fully featured Web proxy cache, is prone to a denial of service attack due to memory consumption caused by memory leaks in cachemgr.cgi :

  - CVE-2012-5643     squid's cachemgr.cgi was vulnerable to excessive     resource use. A remote attacker could exploit this flaw     to perform a denial of service attack on the server and     other hosted services.

  - CVE-2013-0189     The original patch for CVE-2012-5643 was incomplete. A     remote attacker still could exploit this flaw to perform     a denial of service attack.

A denial of service problem in Squid via invalid Content-Length headers and memory leaks has been fixed. (CVE-2012-5643 / CVE-2013-0189, SQUID-2012:1)

A denial of service problem in Squid via invalid Content-Length headers and memory leaks has been fixed. (CVE-2012-5643 / CVE-2013-0189, SQUID-2012:1)

Also a logrotate permission issue has been fixed.

Multiple vulnerabilities has been found and corrected in squid (cachemgr.cgi) :

Multiple memory leaks in tools/cachemgr.cc in cachemgr.cgi in Squid 2.x and 3.x before 3.1.22, 3.2.x before 3.2.4, and 3.3.x before 3.3.0.2 allow remote attackers to cause a denial of service (memory consumption) via (1) invalid Content-Length headers, (2) long POST requests, or (3) crafted authentication credentials (CVE-2012-5643).

cachemgr.cgi in Squid 3.1.x and 3.2.x, possibly 3.1.22, 3.2.4, and other versions, allows remote attackers to cause a denial of service (resource consumption) via a crafted request. NOTE: this issue is due to an incorrect fix for CVE-2012-5643, possibly involving an incorrect order of arguments or incorrect comparison (CVE-2013-0189).

The updated packages have been patched to correct these issues.

This is security update that fixes multiple memory leaks in cachemgr tool. (CVE-2013-0189)

Note that Tenable Network Security has extracted the preceding description block directly from the Fedora security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Squid versions prior to 3.1.23, 3.2.x prior to 3.2.6, and 3.3.x prior to 3.3.0.3 are potentially affected by a denial of service vulnerability. The included 'cachemgr.cgi' tool reportedly lacks input validation, which could be abused by any client able to access that tool to perform a denial of service attack on the service host.

Note this fix is a result of an incomplete fix for CVE-2012-5643.

According to its banner, the version of Squid running on the remote host is 2.x or 3.x prior to 3.1.23 / 3.2.6 / 3.3.0.3.  The included 'cachemgr.cgi' tool reportedly lacks input validation, which could be abused by any client able to access that tool to perform a denial of service attack on the service host.

Note this fix is a result of an incomplete fix for CVE-2012-5643.
 Further note that Nessus did not actually test for this issue, but instead has relied on the version in the server's banner.

It was discovered that squid's cachemgr.cgi was vulnerable to excessive resource use. A remote attacker could exploit this flaw to perform a denial of service attack on the server and other hosted services. (CVE-2012-5643)

It was discovered that the patch for CVE-2012-5643 was incorrect. A remote attacker could exploit this flaw to perform a denial of service attack. (CVE-2013-0189).

Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Squid developers report :

Due to missing input validation Squid cachemgr.cgi tool is vulnerable to a denial of service attack when processing specially crafted requests.

This problem allows any client able to reach the cachemgr.cgi to perform a denial of service attack on the service host.

The nature of the attack may cause secondary effects through resource consumption on the host server.

ID	Name	Product	Family	Severity
80773	Oracle Solaris Third-Party Patch Update : squid (multiple_vulnerabilities_in_squid)	Nessus	Solaris Local Security Checks	medium
75139	openSUSE Security Update : squid (openSUSE-SU-2013:1436-1)	Nessus	SuSE Local Security Checks	high
70182	GLSA-201309-22 : Squid: Multiple vulnerabilities	Nessus	Gentoo Local Security Checks	high
66141	Mandriva Linux Security Advisory : squid (MDVSA-2013:129)	Nessus	Mandriva Local Security Checks	medium
64889	SuSE 11.2 Security Update : squid3 (SAT Patch Number 7336)	Nessus	SuSE Local Security Checks	medium
64867	Debian DSA-2631-1 : squid3 - denial of service	Nessus	Debian Local Security Checks	medium
64866	SuSE 10 Security Update : squid (ZYPP Patch Number 8464)	Nessus	SuSE Local Security Checks	medium
64864	SuSE 11.2 Security Update : squid (SAT Patch Number 7335)	Nessus	SuSE Local Security Checks	medium
64745	Mandriva Linux Security Advisory : squid (MDVSA-2013:013)	Nessus	Mandriva Local Security Checks	medium
64514	Fedora 17 : squid-3.2.5-2.fc17 (2013-1625)	Nessus	Fedora Local Security Checks	medium
64513	Fedora 18 : squid-3.2.5-2.fc18 (2013-1616)	Nessus	Fedora Local Security Checks	medium
6850	Squid < 3.1.23 / 3.2.x < 3.2.6 / 3.3.x < 3.3.0.3 cachemgr.cgi DoS	Nessus Network Monitor	Web Servers	low
64501	Squid 2.x / 3.x < 3.1.23 / 3.2.6 / 3.3.0.3 cachemgr.cgi DoS	Nessus	Firewalls	medium
64376	Ubuntu 10.04 LTS / 11.10 / 12.04 LTS / 12.10 : squid, squid3 vulnerabilities (USN-1713-1)	Nessus	Ubuntu Local Security Checks	medium
63366	FreeBSD : squid -- denial of service (c37de843-488e-11e2-a5c9-0019996bc1f7)	Nessus	FreeBSD Local Security Checks	medium

Detections

Analytics

CVE-2013-0189

high

Tenable Plugins

medium

high

high

medium

medium

medium

medium

medium

medium

medium

medium

low

medium

medium

medium