#VU11933 Security restrictions bypass in Windows and Windows Server


Published: 2018-04-18 | Updated: 2018-04-20

Vulnerability identifier: #VU11933

Vulnerability risk: Low

CVSSv3.1: 4.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C]

CVE-ID: CVE-2018-1035

CWE-ID: CWE-20

Exploitation vector: Local

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 local attacker to bypass security restriction on the target system.

The weakness exists due to improper validation of User Mode Code Integrity policies. A local attacker can run a malicious program, bypass Device Guard and circumvent a User Mode Code Integrity (UMCI) policy on the machine.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Windows:

Windows Server: 2016 10.0.14393.10


External links
http://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-1035


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.


Latest bulletins with this vulnerability