#VU48570 UNIX symbolic link following in swtpm - CVE-2020-28407

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Main Vulnerability Database Vulnerabilities #VU48570

#VU48570 UNIX symbolic link following in swtpm - CVE-2020-28407

Published: November 20, 2020


Vulnerability identifier: #VU48570
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2020-28407
CWE-ID: CWE-61
Exploitation vector: Local access
Exploit availability: No public exploit available
Vulnerable software:
swtpm
Software vendor:
Stefan Berger

Description

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.


Remediation

Install updates from vendor's website.

External links