Remote code execution in Microsoft Word 2010

1) Buffer overflow

EUVDB-ID: #VU9293

Risk: High

CVSSv4.0: 5.7 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2017-11854

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

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

The vulnerability exists due to boundary error when processing Microsoft Word documents. A remote unauthenticated attacker can create a specially crafted Microsoft Word document, trick the victim into opening it and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Microsoft Office: 2010 Service Pack 2

Microsoft Word: 2007 Service Pack 3 - 2010

Microsoft Office Compatibility Pack: Service Pack 3

CPE2.3

• cpe:2.3:a:microsoft:microsoft_office:2010_Service_Pack_2:*:*:*:*:*:*:*
• cpe:2.3:a:microsoft:microsoft_word:2007_Service_Pack_3:*:*:*:*:microsoft_office:*:*
• cpe:2.3:a:microsoft:microsoft_word:*:*:*:*:*:microsoft_office:*:*
• cpe:2.3:a:microsoft:microsoft_office_compatibility_pack:Service_Pack_3:*:*:*:*:*:*:*

External links

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-11854

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.