UNIX symbolic link following in Microsoft Windows and Windows Server - CVE-2020-0635

 

UNIX symbolic link following in Microsoft Windows and Windows Server - CVE-2020-0635

Published: January 14, 2020


Vulnerability identifier: #VU24303
CSH Severity: Low
CVSS v4: 8.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2020-0635
CWE-ID: CWE-61
Exploitation vector: Local access
Exploit availability: No public exploit available

Vulnerability details

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

The vulnerability exists due to a symlink following issue. A local user can create a specially crafted symbolic link to a critical file on the system and overwrite it with privileges of the application.

Successful exploitation of this vulnerability may result in privilege escalation.


Affected software

Microsoft Windows
Windows Server

How to mitigate CVE-2020-0635

Install update from vendor's website.


External References

Related Security Bulletins