Detections
Analytics
Squid 2.x / 3.x < 3.1.23 / 3.2.6 / 3.3.0.3 cachemgr.cgi DoS
medium Nessus Plugin ID 64501
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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 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.
Solution
Either upgrade to Squid version 3.1.23 / 3.2.6 / 3.3.0.3 or later, or apply the vendor-supplied patch.Alternatively, restrict access to this CGI or limit CGI memory consumption via the host web server's configuration options.
See Also
Plugin Details
Severity: Medium
ID: 64501
File Name: squid_3_2_6.nasl
Version: 1.9
Type: remote
Family: Firewalls
Published: 2/8/2013
Updated: 9/17/2018
Configuration: Enable paranoid mode
Supported Sensors: Nessus
Risk Information
VPR
Risk Factor: Low
Score: 3.6
CVSS v2
Risk Factor: Medium
Base Score: 5
Temporal Score: 3.7
Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P
CVSS Score Source: CVE-2013-0189
Vulnerability Information
CPE: cpe:/a:squid-cache:squid
Required KB Items: Settings/ParanoidReport, www/squid
Exploit Ease: No known exploits are available
Patch Publication Date: 1/1/2013
Vulnerability Publication Date: 12/17/2012
Reference Information
CVE: CVE-2012-5643, CVE-2013-0189