Vulnerability identifier: #VU6255

Vulnerability risk: Medium

CVSSv3.1: 7.7 [CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2017-0166

CWE-ID: CWE-119

Exploitation vector: Local 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 execute arbitrary code on the target system.

The vulnerability exists due to a boundary error when processing LDAP requests. A remote attacker can send a specially crafted LDAP requests to domain controller, trigger buffer overflow and execute arbitrary code on the target system.

Successful exploitation of the vulnerability may allow an attacker to execute arbitrary code on the system with elevated privileges.

Mitigation
Install update from Microsoft website.

Vulnerable software versions

Windows: Vista, 7, 8.1 - 8.1 RT, 10

Windows Server: 2008 - 2016

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External links
http://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-0166

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the local network (LAN).

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.