MS15-080 : Vulnerabilities in Microsoft Graphics Component Could Allow Remote Code Execution (3078662)

This script is Copyright (C) 2015-2017 Tenable Network Security, Inc.


Synopsis :

The remote host is affected by multiple vulnerabilities.

Description :

The remote Windows host is affected by multiple vulnerabilities :

- Multiple remote code execution vulnerabilities exist due
to the Windows Adobe Type Manager Library not properly
handling specially crafted OpenType fonts. An attacker
can exploit these, by using a crafted document or web
page with embedded OpenType fonts, to execute arbitrary
code in the context of the current user. (CVE-2015-2432,
CVE-2015-2458, CVE-2015-2459, CVE-2015-2460,
CVE-2015-2461, CVE-2015-2462)

- Multiple remote code execution vulnerabilities exist in
various components of Windows, .NET Framework, Office,
Lync, and Silverlight due to a failure to properly handle
TrueType fonts. An attacker can exploit these, by using
a crafted document or web page with embedded TrueType
fonts, to execute arbitrary code in the context of the
current user. (CVE-2015-2435, CVE-2015-2455,
CVE-2015-2456 CVE-2015-2463, CVE-2015-2464)

- A remote code execution vulnerability exists due to
Microsoft Office not properly handling Office Graphics
Library (OGL) fonts. An attacker can exploit this, by
using a crafted document or web page with embedded OGL
fonts, to execute arbitrary code in the context of the
user. (CVE-2015-2431)

- A security feature bypass vulnerability exists due to
a failure by the Windows kernel to properly initialize
a memory address. An attacker, using a specially crafted
application, can exploit this issue to bypass Kernel
Address Space Layout Randomization (KASLR) and retrieve
the base address of the kernel driver. (CVE-2015-2433)

- An elevation of privilege vulnerability exists due to
a flaw in the Windows Client/Server Run-time Subsystem
(CSRSS) when terminating a process when a user logs off.
An attacker can exploit this vulnerability to run code
that monitors the actions of users who log on to the
system, allowing the disclosure of sensitive information
which could be used to elevate privileges or execute
code. (CVE-2015-2453)

- A security feature bypass vulnerability exists due to
the Windows kernel-mode driver not properly validating
and enforcing impersonation levels. An attacker can
exploit this to gain elevated privileges on a targeted
system. (CVE-2015-2454)

- A security feature bypass vulnerability exists due to
the Windows shell not properly validating and enforcing
impersonation levels. An attacker can exploit this to
bypass impersonation-level security and gain elevated
privileges on a targeted system. (CVE-2015-2465)

See also :

https://technet.microsoft.com/library/security/MS15-080

Solution :

Microsoft has released a set of patches for Windows Vista, 2008, 7,
2008 R2, 8, RT, 2012, 8.1, RT 8.1, 2012 R2, and 10. Additionally,
Microsoft has released a set of patches for Office 2007, Office 2010,
Microsoft Lync 2010, 2010 Attendee, 2013 SP1, Microsoft Live Meeting
2007; and .NET Framework 3.5, 3.5.1, 4, 4.5, 4.5.1, 4.5.2, and 4.6.

Risk factor :

High / CVSS Base Score : 9.3
(CVSS2#AV:N/AC:M/Au:N/C:C/I:C/A:C)
CVSS Temporal Score : 7.3
(CVSS2#E:POC/RL:OF/RC:ND)
Public Exploit Available : true