Squid 3.x < 3.4.8 Multiple Vulnerabilities

medium Nessus Plugin ID 79742
New! Plugin Severity Now Using CVSS v3

The calculated severity for Plugins has been updated to use CVSS v3 by default. Plugins that do not have a CVSS v3 score will fall back to CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.

Synopsis

The remote proxy server may be affected by multiple vulnerabilities.

Description

According to its banner, the version of Squid running on the remote host is 3.x prior to 3.4.8. Therefore, it may be affected by the following vulnerabilities :

- A off-by-one overflow flaw exists within the SNMP processing component. By using a specially crafted UDP SNMP request, a remote attacker could exploit this to cause a denial of service or possibly execute arbitrary code. (CVE-2014-6270)

- There exists an array indexing flaw in the node pinger that is triggered when parsing ICMP and ICMPv6 replies, which may allow a remote attacker to crash the pinger or obtain sensitive information. (CVE-2014-7141)

- The node pinger has a flaw in function 'Icmp4::Recv' in file 'icmp/Icmp4.cc.' that is triggered when parsing ICMP or ICMPv6 responses. A remote attacker could exploit this to crash the pinger or obtain sensitive information. (CVE-2014-7142)

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

Solution

Upgrade to Squid version 3.4.8 or later, or apply the vendor-supplied patch.

See Also

http://www.squid-cache.org/Advisories/

http://www.squid-cache.org/Advisories/SQUID-2014_3.txt

http://www.squid-cache.org/Advisories/SQUID-2014_4.txt

http://www.nessus.org/u?c9716bf4

Plugin Details

Severity: Medium

ID: 79742

File Name: squid_3_4_8.nasl

Version: 1.2

Type: remote

Family: Firewalls

Published: 12/5/2014

Updated: 7/30/2018

Dependencies: squid_version.nasl

Configuration: Enable paranoid mode

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5

Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P

Temporal Vector: E:U/RL:OF/RC:C

Vulnerability Information

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

Required KB Items: www/squid, Settings/ParanoidReport

Exploit Ease: No known exploits are available

Patch Publication Date: 9/15/2014

Vulnerability Publication Date: 8/11/2014

Reference Information

CVE: CVE-2014-6270, CVE-2014-7141, CVE-2014-7142

BID: 69686, 69688, 70022