#VU20283 Input validation error in Windows and Windows Server


Published: 2019-08-14

Vulnerability identifier: #VU20283

Vulnerability risk: Low

CVSSv3.1: 6.1 [CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2019-1163

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 remote attacker to bypass signature validation mechanisms.

The vulnerability exists due to incorrect validation of signature for CAB files. A remote attacker can create a specially crafted CAB file with malicious code in it, bypass signature validation mechanisms and compromise vulnerable system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Windows: 10 - 10 1903

Windows Server: 2016 - 2019 1903


External links
http://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1163


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.


Latest bulletins with this vulnerability