ID:6584 - Exploit for Buffer overflow in Windows and Windows Server - CVE-2020-17087

 
Main Vulnerability Database Exploits ID:6584 - Exploit for Buffer overflow in Windows and Windows Server - CVE-2020-17087

ID:6584 - Exploit for Buffer overflow in Windows and Windows Server - CVE-2020-17087

Published: July 29, 2021


Vulnerability identifier: #VU48060
Vulnerability risk: High
CVE-ID: CVE-2020-17087
CWE-ID: CWE-119
Exploitation vector: Local access
Vulnerable software:
Windows
Windows Server

Link to public exploit:


Vulnerability description

The vulnerability allows a local user to escalate privilege son the system.

The vulnerability exists due to a boundary error within the Windows Kernel Cryptography Driver cng.sys, which exposes a "\Device\CNG" device to user-mode programs and supports a variety of IOCTLs with non-trivial input structures. A local user can run a specially crafted program to trigger memory corruption and execute arbitrary code on the system with elevated privileges.

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


Remediation

Install update from vendor's website.