FreeBSD : asterisk -- TLS Certificate Common name NULL byte exploit (5fee3f02-de37-11e4-b7c3-001999f8d30b)

medium Nessus Plugin ID 82650
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VPR Score: 3.7


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


The Asterisk project reports :

When Asterisk registers to a SIP TLS device and and verifies the server, Asterisk will accept signed certificates that match a common name other than the one Asterisk is expecting if the signed certificate has a common name containing a null byte after the portion of the common name that Asterisk expected. For example, if Asterisk is trying to register to, Asterisk will accept certificates of the form\


Update the affected packages.

See Also

Plugin Details

Severity: Medium

ID: 82650

File Name: freebsd_pkg_5fee3f02de3711e4b7c3001999f8d30b.nasl

Version: 1.8

Type: local

Published: 4/9/2015

Updated: 1/6/2021

Dependencies: ssh_get_info.nasl

Risk Information

Risk Factor: Medium

VPR Score: 3.7

CVSS v2.0

Base Score: 4.3

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

Vulnerability Information

CPE: p-cpe:/a:freebsd:freebsd:asterisk, p-cpe:/a:freebsd:freebsd:asterisk11, p-cpe:/a:freebsd:freebsd:asterisk13, cpe:/o:freebsd:freebsd

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

Patch Publication Date: 4/8/2015

Vulnerability Publication Date: 4/4/2015

Reference Information

CVE: CVE-2015-3008