Microsoft Office Memory Corruption Vulnerability

1) Memory corruption

EUVDB-ID: #VU6020

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-2017-0052

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 handling malicious Excel files. A remote attacker can create a specially crafted .xls file, trick the victim into opening it, trigger memory corruption and execute arbitrary code with privileges of the current user.

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

Mitigation

Install updates from Microsoft website.

Vulnerable software versions

Microsoft Excel: 2007

Excel Services on Microsoft SharePoint Server: 2007

Microsoft Office: 2007

CPE2.3

• cpe:2.3:a:microsoft:microsoft_excel:*:*:*:*:*:*:*:
• cpe:2.3:a:microsoft:excel_services_on_microsoft_sharepoint_server:2007:*:*:*:*:*:*:
• cpe:2.3:a:microsoft:microsoft_office:*:*:*:*:*:*:*:

External links

http://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-0052

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.