#VU48317 Security Features in Microsoft Office and Microsoft Excel - CVE-2020-17067


Vulnerability identifier: #VU48317

Vulnerability risk: High

CVSSv4.0: [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-2020-17067

CWE-ID: CWE-254

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Microsoft Office
Client/Desktop applications / Office applications
Microsoft Excel
Client/Desktop applications / Office applications

Vendor: Microsoft

Description

The vulnerability allows a remote attacker to bypass authentication process.

The vulnerability exists due to security feature bypass issue in Microsoft Excel. A remote attacker can gain unauthorized access to the application.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Microsoft Office: 2019 for Mac - 2019

Microsoft Excel: 2010, 2013 RT Service Pack 1, 2013, 2016


External links
http://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-17067


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.


Latest bulletins with this vulnerability