Privilege escalation in Windows Media Service



Published: 2020-01-14
Severity Low
Patch available YES
Number of vulnerabilities 1
CVE ID CVE-2020-0641
CWE ID CWE-264
Exploitation vector Local
Public exploit N/A
Vulnerable software
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Windows
Operating systems & Components / Operating system

Windows Server
Operating systems & Components / Operating system

Vendor Microsoft

Security Advisory

This security advisory describes one low risk vulnerability.

1) Permissions, Privileges, and Access Controls

Severity: Low

CVSSv3: 7.7 [CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C] [PCI]

CVE-ID: CVE-2020-0641

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to Windows Media Service allows to create files in arbitrary locations on the system. A local user can create a specially crafted application and place malicious files in critical system locations and then escalate privileges on the system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Windows: 8.1, 10, 10 1607, 10 1709, 10 1803, 10 1809, 10 1903, 10 1909, RT 8.1

Windows Server: 1803, 1903, 1909, 2012, 2012 R2, 2016, 2019

CPE External links

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0641

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.