Squid 3.2.x < 3.2.13 / 3.3.x < 3.3.8 Port Handling DoS

medium Nessus Plugin ID 69042

Synopsis

The remote proxy server is affected by a denial of service vulnerability.

Description

According to its banner, the version of Squid running on the remote host is 3.2.x prior to 3.2.13 or 3.3.x prior to 3.3.8. It is, therefore, affected by a denial of service vulnerability. The vulnerability exists when handling a port number in the host header of a specially crafted HTTP Request.

Note that Nessus has relied only on the version in the proxy server's banner, which is not updated by the patch that the project has released to address this issue. If this patch has been applied properly and the service has been restarted, consider this to be a false positive.

Solution

Either upgrade to Squid version 3.2.13 / 3.3.8 or later, or apply the vendor-supplied patch.

See Also

http://www.squid-cache.org/Advisories/SQUID-2013_3.txt

https://seclists.org/bugtraq/2013/Jul/98

Plugin Details

Severity: Medium

ID: 69042

File Name: squid_3_2_13.nasl

Version: 1.7

Type: remote

Family: Firewalls

Published: 7/24/2013

Updated: 11/15/2018

Configuration: Enable paranoid mode

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.9

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P

Vulnerability Information

CPE: cpe:/a:squid-cache:squid

Required KB Items: www/squid, Settings/ParanoidReport

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 7/13/2013

Vulnerability Publication Date: 7/13/2013

Reference Information

CVE: CVE-2013-4123

BID: 61159, 61182