Code Injection in Windows and Windows Server - CVE-2021-43233

 

Code Injection in Windows and Windows Server - CVE-2021-43233

Published: December 14, 2021


Vulnerability identifier: #VU58968
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2021-43233
CWE-ID: CWE-94
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vendor: Microsoft
Affected software:
Windows
Windows Server

Detailed vulnerability description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to improper input validation in Remote Desktop Client. A remote attacker can send a specially crafted request and execute arbitrary code on the target system.

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


How to mitigate CVE-2021-43233

Install updates from vendor's website.

Sources