CVE-2019-15316

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.
Configurations

Configuration 1 (hide)

AND
cpe:2.3:a:valvesoftware:steam_client:*:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*

History

21 Nov 2024, 04:28

Type Values Removed Values Added
References () https://amonitoring.ru/article/onemore_steam_eop_0day/ - Third Party Advisory () https://amonitoring.ru/article/onemore_steam_eop_0day/ - Third Party Advisory
References () https://habr.com/ru/company/pm/blog/464367/ - Third Party Advisory () https://habr.com/ru/company/pm/blog/464367/ - Third Party Advisory
References () https://www.youtube.com/watch?v=I93aH86BUaE - Exploit, Third Party Advisory () https://www.youtube.com/watch?v=I93aH86BUaE - Exploit, Third Party Advisory
References () https://www.youtube.com/watch?v=ZCHrjP0cMew - Exploit, Third Party Advisory () https://www.youtube.com/watch?v=ZCHrjP0cMew - Exploit, Third Party Advisory

Information

Published : 2019-08-21 20:15

Updated : 2024-11-21 04:28


NVD link : CVE-2019-15316

Mitre link : CVE-2019-15316

CVE.ORG link : CVE-2019-15316


JSON object : View

Products Affected

microsoft

  • windows

valvesoftware

  • steam_client
CWE
CWE-367

Time-of-check Time-of-use (TOCTOU) Race Condition

CWE-732

Incorrect Permission Assignment for Critical Resource