#VU47606 Input validation error in Windows and Windows Server


Published: 2020-10-13

Vulnerability identifier: #VU47606

Vulnerability risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-16927

CWE-ID: CWE-20

Exploitation vector: Network

Exploit availability: No

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

Vendor: Microsoft

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of user-supplied input in Remote Desktop Protocol (RDP) . A remote attacker can run a specially crafted application against a server which provides RDP services and perform a denial of service (DoS) attack.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Windows: 10 - 10 2004, 8.1 - 8.1 RT

Windows Server: 2012 R2 - 2019 2004


External links
http://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-16927


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