CVE-2019-15316
 
Severity Score
7.0
*CVSS v3
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
2
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
-
*SSVC
Descriptions
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.
Valve Steam Client para Windows hasta 2019-08-20 tiene permisos de carpeta débiles, lo que lleva a la escalada de privilegios (a NT AUTHORITY \ SYSTEM) mediante el uso diseñado de CreateMountPoint.exe y SetOpLock.exe para aprovechar una condición de carrera TOCTOU.
*Credits:
N/A
CVSS Scores
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Authentication
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:-
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2019-08-21 CVE Reserved
- 2019-08-21 CVE Published
- 2024-08-05 CVE Updated
- 2024-08-05 First Exploit
- 2024-12-17 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
CWE
- CWE-367: Time-of-check Time-of-use (TOCTOU) Race Condition
- CWE-732: Incorrect Permission Assignment for Critical Resource
CAPEC
References (4)
URL | Tag | Source |
---|---|---|
https://amonitoring.ru/article/onemore_steam_eop_0day | Third Party Advisory | |
https://habr.com/ru/company/pm/blog/464367 | Third Party Advisory |
URL | Date | SRC |
---|---|---|
https://www.youtube.com/watch?v=I93aH86BUaE | 2024-08-05 | |
https://www.youtube.com/watch?v=ZCHrjP0cMew | 2024-08-05 |
URL | Date | SRC |
---|
URL | Date | SRC |
---|
Affected Vendors, Products, and Versions
Vendor | Product | Version | Other | Status | ||||||
---|---|---|---|---|---|---|---|---|---|---|
Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
Valvesoftware Search vendor "Valvesoftware" | Steam Client Search vendor "Valvesoftware" for product "Steam Client" | <= 2019-08-20 Search vendor "Valvesoftware" for product "Steam Client" and version " <= 2019-08-20" | - |
Affected
| in | Microsoft Search vendor "Microsoft" | Windows Search vendor "Microsoft" for product "Windows" | - | - |
Safe
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