CVE-2019-14743 Information

Description

In Valve Steam Client for Windows through 2019-08-07 HKLM\SOFTWARE\Wow6432Node\Valve\Steam has explicit \Full control\ for the Users group which allows local users to gain NT AUTHORITY\SYSTEM access.

CVSS Vector

CVSS:3.0/AV:P/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Reference

https://amonitoring.ru/article/steamclient-0day/ https://github.com/alexanderbittner/steam-privesc/ https://habr.com/ru/company/pm/blog/462479/

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

6.6