Improper input validation in Windows and Windows Server - CVE-2018-0886

 

Improper input validation in Windows and Windows Server - CVE-2018-0886

Published: March 13, 2018 / Updated: June 17, 2021


Vulnerability identifier: #VU11029
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Green
CVE-ID: CVE-2018-0886
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability: Public exploit is 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 an error when validation authentication requests in Credential Security Support Provider protocol (CredSSP). A remote unauthenticated attacker with ability to perform a Man-in-the-Middle (MitM) attack can execute arbitrary code on the target system.

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


How to mitigate CVE-2018-0886

Install updates from vendor's website.

Sources