Vulnerability identifier: #VU1181

Vulnerability risk: Critical

CVSSv3.1: 8.9 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H/E:F/RL:O/RC:C]

CVE-ID: CVE-2006-4534

CWE-ID: CWE-119

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Word Viewer
Client/Desktop applications / Office applications
Microsoft Office
Client/Desktop applications / Office applications
Works Suite
Client/Desktop applications / Other client software

Vendor: Microsoft

Description
The vulnerability allows a remote user to execute arbitrary code on the target system.

The weakness is due to stack-based buffer overflow. By persuading the victim to load and open a specially crafted Word document containing a malformed string, a remote attacker can execute arbitrary code with elevated privileges.

Successful exploitation of the vulnerability results in arbitrary code execution on the vulnerable system.

Note: this vulnerability was being actively exploited.

Mitigation
Microsoft Word 2000 - https://www.microsoft.com/downloads/details.aspx?FamilyId=CFC85449-4941-4DA5-A919-1DA388054E83
Microsoft Word 2002 - https://www.microsoft.com/downloads/details.aspx?FamilyId=5652303E-04B3-4713-AF2E-2C8D2450468D
Microsoft Word 2003 - https://www.microsoft.com/downloads/details.aspx?FamilyId=30C516EB-BD63-4248-A34D-47AF7E9EA55A
Microsoft Office Word 2003 Viewer - https://www.microsoft.com/downloads/details.aspx?FamilyId=EB230319-14A5-4206-A601-CF9DDE89352A
Microsoft Works Suite 2004 - https://www.microsoft.com/downloads/details.aspx?FamilyId=5652303E-04B3-4713-AF2E-2C8D2450468D
Microsoft Works Suite 2005 - https://www.microsoft.com/downloads/details.aspx?FamilyId=5652303E-04B3-4713-AF2E-2C8D2450468D
Microsoft Works Suite 2006 - https://www.microsoft.com/downloads/details.aspx?FamilyId=5652303E-04B3-4713-AF2E-2C8D2450468D

Vulnerable software versions

Word Viewer: 2003

:

Works Suite: 2004 - 2006

Microsoft Office:

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External links
http://technet.microsoft.com/en-us/library/security/ms06-060.aspx

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Q & A

Can this vulnerability be exploited remotely?

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

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, a fully functional exploit for this vulnerability is available.