CVE-2019-15316

Description

Valve Steam Client for Windows through 2019-08-20 has weak folder permissions, leading to privilege escalation (to NT AUTHORITY\SYSTEM) via crafted use of CreateMountPoint.exe and SetOpLock.exe to leverage a TOCTOU race condition.

References

https://habr.com/ru/company/pm/blog/464367/

https://amonitoring.ru/article/onemore_steam_eop_0day/

Details

Source: Mitre, NVD

Risk Information

CVSS v2

CVSS v3