Remote code execution in Microsoft Office Web Components

1) Buffer overflow

EUVDB-ID: #VU1420

Risk: Critical

CVSSv3.1: 9.2 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H/E:H/RL:O/RC:C]

CVE-ID: CVE-2009-1136

CWE-ID: CWE-119 - Memory corruption

Exploit availability: Yes

Description

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

The weakness exists due to boundary error in Office Web Components ActiveX Control when handling parameter values. A remote attacker can create a specially crafted Web page, trick the victim into viewing it and execute arbitrary code on the target system with privileges of the current user.

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

Note: the vulnerability was being actively exploited.

Mitigation

Install update from vendor's website:

Microsoft Office XP Service Pack 3:
https://www.microsoft.com/downloads/details.aspx?familyid=60e2e4e7-aa75-441d-b6fc-7e850bf8e580
http://go.microsoft.com/fwlink/?LinkId=112114
Microsoft Office 2003 Service Pack 3:
https://www.microsoft.com/downloads/details.aspx?familyid=95c94c9a-6aca-42fb-9679-3234f06c72f7
Microsoft Office XP Web Components Service Pack 3:
https://www.microsoft.com/downloads/details.aspx?familyid=60e2e4e7-aa75-441d-b6fc-7e850bf8e580
http://go.microsoft.com/fwlink/?LinkId=112114
Microsoft Office 2003 Web Components Service Pack 3:
https://www.microsoft.com/downloads/details.aspx?familyid=95c94c9a-6aca-42fb-9679-3234f06c72f7
Microsoft Office 2003 Web Components Service Pack 1 for the 2007 Microsoft Office System:
https://www.microsoft.com/downloads/details.aspx?familyid=644008e0-77c9-4a02-ac9b-e30d0930c4be
Microsoft Internet Security and Acceleration Server 2004 Standard Edition Service Pack 3:
https://www.microsoft.com/downloads/details.aspx?familyid=8f79a073-27e8-46ef-87d8-f09b93521326
Microsoft Internet Security and Acceleration Server 2004 Enterprise Edition Service Pack 3:
https://www.microsoft.com/downloads/details.aspx?familyid=8f79a073-27e8-46ef-87d8-f09b93521326
Microsoft Internet Security and Acceleration Server 2006 Standard Edition Service Pack 1:
https://www.microsoft.com/downloads/details.aspx?familyid=8f79a073-27e8-46ef-87d8-f09b93521326
Microsoft Internet Security and Acceleration Server 2006 Enterprise Edition Service Pack 1:
https://www.microsoft.com/downloads/details.aspx?familyid=8f79a073-27e8-46ef-87d8-f09b93521326
Microsoft Office Small Business Accounting 2006:
https://www.microsoft.com/downloads/details.aspx?familyid=0d77ddb3-4d34-4cfe-913b-d05981f59a82

Vulnerable software versions

Microsoft Office: XP - 2003

Microsoft Forefront Threat Management Gateway: 2004 - 2006

Microsoft Office Small Business Accounting: 2006

Microsoft BizTalk Server: 2002

Visual Studio: 2003

CPE2.3

• cpe:2.3:a:microsoft:microsoft_office:XP:*:*:*:*:*:*:
• cpe:2.3:a:microsoft:microsoft_office:*:*:*:*:*:*:*:
• cpe:2.3:a:microsoft:microsoft_forefront_threat_management_gateway:2004:*:*:*:*:*:*:
• cpe:2.3:a:microsoft:microsoft_forefront_threat_management_gateway:2006:*:*:*:*:*:*:
• cpe:2.3:a:microsoft:microsoft_office_small_business_accounting:2006:*:*:*:*:*:*:
• cpe:2.3:a:microsoft:microsoft_biztalk_server:2002:*:*:*:*:*:*:
• cpe:2.3:a:microsoft:visual_studio:*:*:*:*:*:*:*:

External links

http://technet.microsoft.com/en-us/library/security/ms09-043.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?

Yes. This vulnerability is being exploited in the wild.