FreeBSD : squid -- client-first SSL-bump does not correctly validate X509 server certificate (b6da24da-23f7-11e5-a4a5-002590263bf5)

This script is Copyright (C) 2015 Tenable Network Security, Inc.


Synopsis :

The remote FreeBSD host is missing one or more security-related
updates.

Description :

Squid security advisory 2015:1 reports :

Squid configured with client-first SSL-bump does not correctly
validate X509 server certificate domain / hostname fields.

The bug is important because it allows remote servers to bypass client
certificate validation. Some attackers may also be able to use valid
certificates for one domain signed by a global Certificate Authority
to abuse an unrelated domain.

However, the bug is exploitable only if you have configured Squid to
perform SSL Bumping with the 'client-first' or 'bump' mode of
operation.

Sites that do not use SSL-Bump are not vulnerable.

All Squid built without SSL support are not vulnerable to the problem.

The FreeBSD port does not use SSL by default and is not vulnerable in
the default configuration.

See also :

http://www.squid-cache.org/Advisories/SQUID-2015_1.txt
http://www.nessus.org/u?4d319b0e

Solution :

Update the affected packages.

Risk factor :

Low / CVSS Base Score : 2.6
(CVSS2#AV:N/AC:H/Au:N/C:N/I:P/A:N)

Family: FreeBSD Local Security Checks

Nessus Plugin ID: 84555 ()

Bugtraq ID:

CVE ID: CVE-2015-3455

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