Vulnerability identifier: #VU25249

Vulnerability risk: Low

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

CVE-ID: CVE-2020-0733

CWE-ID: CWE-20

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Windows Malicious Software Removal Tool (MSRT)
Client/Desktop applications / Antivirus software/Personal firewalls

Vendor: Microsoft

Description

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

The vulnerability exists due to incorrect handling of junctions in Windows Malicious Software Removal Tool (MSRT). A local user can run a specially crafted application to elevate privileges on the system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Windows Malicious Software Removal Tool (MSRT): All versions

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External links
http://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0733

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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.