#VU80655 Information disclosure in Microsoft products - CVE-2023-36761

Vulnerability identifier: #VU80655

Vulnerability risk: High

CVSSv4.0: 6.7 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:A/U:Amber]

CVE-ID: CVE-2023-36761

CWE-ID: CWE-200

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Microsoft Office
Client/Desktop applications / Office applications
Microsoft Word
Client/Desktop applications / Office applications
Microsoft 365 Apps for Enterprise
Client/Desktop applications / Office applications

Vendor: Microsoft

Description

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to the application ca reveal sensitive information to a third-party. A remote attacker can trick the victim to open or preview a specially crafted file and obtain NTLM hash of the current account.

Note, the vulnerability is being actively exploited in the wild.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Microsoft Office: 365, 2013 RT Service Pack 1 - 2013, 2016, 2019

Microsoft Word: before 15.0.5589.1001, 16.0.5413.1000, 15.0.5589.1001, 15.0.5589.1001

Microsoft 365 Apps for Enterprise: before 15.0.5589.1001, 16.0.5413.1000, 15.0.5589.1001, 15.0.5589.1001

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External links
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2023-36761

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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?

Yes. This vulnerability is being exploited in the wild.