#VU25961 Windows Hard Link in Windows and Windows Server


Published: 2020-03-10

Vulnerability identifier: #VU25961

Vulnerability risk: Low

CVSSv3.1: 6.2 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-0786

CWE-ID: CWE-65

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 user to cause a denial of service (DoS) condition on the target  system.

The vulnerability exists due to Windows Tile Object Service improperly handles hard links. A local authenticated user can run a specially crafted application and cause a target system to stop responding.

This vulnerability would allow an attacker to overwrite system files.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Windows: 10 - 10 1607

Windows Server: 2016


External links
http://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0786


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