Squid 3.2.x < 3.2.14 / 3.3.x < 3.3.14 / 3.4.x < 3.4.13 / 3.5.x < 3.5.4 X.509 Certificate Validation Vulnerability

Medium Nessus Network Monitor Plugin ID 8869

Synopsis

The remote proxy server is affected by a X.509 certificate validation vulnerability.

Description

Squid 3.2.x before 3.2.14, 3.3.x before 3.3.14, 3.4.x before 3.4.13, and 3.5.x before 3.5.4, when configured with client-first SSL-bump, does not properly validate the domain or hostname fields of X.509 certificates, which allows man-in-the-middle attackers to spoof SSL servers via a valid certificate.

Solution

Upgrade to Squid version 3.2.14 / 3.3.14 / 3.4.13 / 3.5.4 or later.

See Also

http://www.squid-cache.org/Advisories/SQUID-2015_1.txt

Plugin Details

Severity: Medium

ID: 8869

Family: Web Servers

Published: 2015/09/16

Modified: 2016/11/23

Dependencies: 3389

Nessus ID: 83529

Risk Information

Risk Factor: Medium

CVSSv2

Base Score: 5.8

Temporal Score: 5

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

Temporal Vector: CVSS2#E:ND/RL:OF/RC:C

CVSSv3

Base Score: 4.8

Temporal Score: 4.6

Vector: CVSS3#AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N

Temporal Vector: CVSS3#E:X/RL:O/RC:C

Vulnerability Information

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

Patch Publication Date: 2015/05/01

Vulnerability Publication Date: 2015/05/01

Reference Information

CVE: CVE-2015-3455

BID: 74438