Buffer overflow in Windows and Windows Server - CVE-2017-0176

Vulnerability identifier: #VU10261

CSH Severity: Critical

CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:A/U:Red

CVE-ID: CVE-2017-0176

CWE-ID: CWE-119

Exploitation vector: Remote access

Exploit availability: The vulnerability is being exploited in the wild

Vendor: Microsoft

Affected software:
Windows
Windows Server

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a boundary error in the Smart Card authentication code in gpkcsp.dll within Windows Remote Desktop services. A remote attacker can send specially crafted packets to the vulnerable system, trigger buffer overflow and execute arbitrary code on the target system.

Successful exploitation of the vulnerability may allow an attacker to gain complete control over the affected system.

Note: this vulnerability was publicly disclosed by the Shadow Brokers hacking team along with a fully functional exploit known as "“EsteemAudit".

The vulnerability is being exploited in the wild.

Install a security patch:
https://support.microsoft.com/en-us/help/4022747/security-update-for-windows-xp-and-windows-server-2...

• https://support.microsoft.com/en-us/help/4022747/security-update-for-windows-xp-and-windows-server-2...