macOS : macOS Server < 5.2 Multiple Vulnerabilities (httpoxy)

This script is Copyright (C) 2016-2017 Tenable Network Security, Inc.


Synopsis :

The remote host is missing a security update for macOS Server.

Description :

The version of macOS Server (formerly known as Mac OS X Server)
installed on the remote host is prior to 5.2. It is, therefore,
affected by the following vulnerabilities :

- The Apache HTTP Server is affected by a
man-in-the-middle vulnerability known as 'httpoxy' due
to a failure to properly resolve namespace conflicts in
accordance with RFC 3875 section 4.1.18. The HTTP_PROXY
environment variable is set based on untrusted user data
in the 'Proxy' header of HTTP requests. The HTTP_PROXY
environment variable is used by some web client
libraries to specify a remote proxy server. An
unauthenticated, remote attacker can exploit this, via a
crafted 'Proxy' header in an HTTP request, to redirect
an application's internal HTTP traffic to an arbitrary
proxy server where it may be observed or manipulated.
(CVE-2016-4694)

- Multiple unspecified flaws exist that are related to
the RC4 algorithm that allow an unauthenticated, remote
attacker to defeat cryptographic protection mechanisms.
(CVE-2016-4754)

See also :

https://support.apple.com/en-us/HT207171
http://www.nessus.org/u?a9b0d4cb
https://httpoxy.org

Solution :

Upgrade to macOS Server version 5.2 or later. Note that macOS Server
version 5.2 is available only for macOS 10.12 or later.

Risk factor :

High / CVSS Base Score : 7.5
(CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P)
CVSS Temporal Score : 5.5
(CVSS2#E:U/RL:OF/RC:C)
Public Exploit Available : false

Family: MacOS X Local Security Checks

Nessus Plugin ID: 93813 ()

Bugtraq ID: 93060
93061

CVE ID: CVE-2016-4694
CVE-2016-4754

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