Remote code execution in Microsoft Word



Published: 2007-02-14 | Updated: 2016-12-10
Risk Critical
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2007-0870
CWE-ID CWE-119
Exploitation vector Network
Public exploit This vulnerability is being exploited in the wild.
Vulnerable software
Subscribe
Microsoft Office
Client/Desktop applications / Office applications

Microsoft Word
Client/Desktop applications / Office applications

Works Suite
Client/Desktop applications / Other client software

Vendor Microsoft

Security Bulletin

This security bulletin contains one critical risk vulnerability.

1) Memory corruption

EUVDB-ID: #VU1251

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-2007-0870

CWE-ID: CWE-119 - Improper Restriction of Operations within the Bounds of a Memory Buffer

Exploit availability: No

Description

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

The vulnerability exists due to boundary error when handling malformed stream in Word document. A remote attacker can create a specially crafted MS Word document, trick the victim into opening it and execute arbitrary code with privileges of the current user.

Successful exploitation of the vulnerability results in compromise of vulnerable system.

Note: this vulnerability is being actively exploited.

Mitigation

Install update from vendor's website:

Microsoft Office 2000 Service Pack 3:
https://www.microsoft.com/downloads/details.aspx?FamilyId=F25020F5-17C7-4A60-9088-944FFACB5F19

Microsoft Office XP Service Pack 3:
https://www.microsoft.com/downloads/details.aspx?FamilyId=0FE4F405-A568-4F15-B2C6-02D4A4B58E43

Microsoft Works Suites:

Vulnerable software versions

Microsoft Office: 2000, XP

Works Suite: 2004, 2005, 2006

Microsoft Word: 2000, 2002

CPE2.3 External links

http://technet.microsoft.com/en-us/library/security/933052.aspx
http://technet.microsoft.com/library/security/ms07-024

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. However, a fully functional exploit for this vulnerability is available.



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