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

low Nessus Plugin ID 84555
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The remote FreeBSD host is missing one or more security-related updates.


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.


Update the affected packages.

See Also

Plugin Details

Severity: Low

ID: 84555

File Name: freebsd_pkg_b6da24da23f711e5a4a5002590263bf5.nasl

Version: 2.5

Type: local

Published: 7/7/2015

Updated: 1/6/2021

Dependencies: ssh_get_info.nasl

Risk Information


Risk Factor: Low

Score: 3.6


Risk Factor: Low

Base Score: 2.6

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

Vulnerability Information

CPE: p-cpe:/a:freebsd:freebsd:squid, p-cpe:/a:freebsd:freebsd:squid32, p-cpe:/a:freebsd:freebsd:squid33, cpe:/o:freebsd:freebsd

Required KB Items: Host/local_checks_enabled, Host/FreeBSD/release, Host/FreeBSD/pkg_info

Patch Publication Date: 7/6/2015

Vulnerability Publication Date: 5/1/2015

Reference Information

CVE: CVE-2015-3455