Mac OS X : OS X Server < 5.0.15 Multiple Vulnerabilities

This script is Copyright (C) 2015-2016 Tenable Network Security, Inc.


Synopsis :

The remote host is missing a security update for OS X Server.

Description :

The remote Mac OS X host has a version of OS X Server installed that
is prior to 5.0.15. It is, therefore, affected by the following
vulnerabilities :

- A denial of service vulnerability exists due to an
assertion flaw that is triggered when parsing malformed
DNSSEC keys. An unauthenticated, remote attacker can
exploit this, via a specially crafted query to a zone
containing such a key, to cause a validating resolver to
exit. (CVE-2015-5722)

- A denial of service vulnerability exists in the
fromwire_openpgpkey() function in openpgpkey_61.c that
is triggered when the length of data is less than 1. An
unauthenticated, remote attacker can exploit this, via a
specially crafted response to a query, to cause an
assertion failure that terminates named. (CVE-2015-5986)

- A flaw exists in the web service component due to HTTP
header field references missing from configuration files.
A remote attacker can exploit this to bypass access
restrictions. (CVE-2015-7031)

See also :

https://support.apple.com/en-us/HT205376
http://www.nessus.org/u?717081f4
https://kb.isc.org/article/AA-01287
https://kb.isc.org/article/AA-01291

Solution :

Upgrade to Mac OS X Server version 5.0.15 or later.

Note that OS X Server 5.0.15 is available only for OS X 10.10.5 and
OS X 10.11.1 or later.

Risk factor :

High / CVSS Base Score : 7.8
(CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C)
CVSS Temporal Score : 6.4
(CVSS2#E:F/RL:OF/RC:ND)
Public Exploit Available : true

Family: MacOS X Local Security Checks

Nessus Plugin ID: 86604 ()

Bugtraq ID: 76605
76618

CVE ID: CVE-2015-5722
CVE-2015-5986
CVE-2015-7031

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