#VU97017 Input validation error in Windows Server - CVE-2024-43455

Vulnerability identifier: #VU97017

Vulnerability risk: Medium

CVSSv4.0: 6.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2024-43455

CWE-ID: CWE-20

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Windows Server
Operating systems & Components / Operating system

Vendor: Microsoft

Description

The vulnerability allows a remote attacker to compromise the target system.

The vulnerability exists due to insufficient validation of user-supplied input in Windows Remote Desktop Licensing Service. A remote user can pass specially crafted input to the application and perform spoofing attack.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Windows Server: before 2008 R2, 2008, 2012 R2, 2012, 2016, 2019, 2022 23H2, 2022, 2008 R2, 2008 R2, 2008 R2, 2008 R2, 2008 R2

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External links
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2024-43455

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.