Unsafe Command Line Parameter Passing Could Allow Information Disclosure

1) Input validation error

EUVDB-ID: #VU5291

Risk: High

CVSSv3.1: 8.3 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2015-2423

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to input validation error when processing command line parameters in Microsoft Office files at a medium integrity level within Internet Explorer running in Enhanced Protection Mode (EPM). A remote attacker can trick the victim into opening a specially crafted Office file and execute arbitrary commands on the target system with privileges of the current user.

The vulnerability resides within Microsoft Windows, Internet Explorer, and Microsoft Office.

Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.

Mitigation

Install updates from Microsoft website.

Vulnerable software versions

Microsoft Visio: 2007 - 2016

Microsoft Word: 2007 - 2016

Microsoft Office: 2010

Microsoft PowerPoint: 2007 - 2013 RT Service Pack 1

Microsoft Excel: 2007 - 2013 RT Service Pack 1

External links

http://technet.microsoft.com/en-us/library/security/ms15-081.aspx

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

How the attacker can exploit this vulnerability?

The attacker would have to trick the victim to visit a specially crafted website or open a file.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.