// For flags

CVE-2019-15315

 

Severity Score

7.8
*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

Valve Steam Client for Windows through 2019-08-16 allows privilege escalation (to NT AUTHORITY\SYSTEM) because local users can replace the current versions of SteamService.exe and SteamService.dll with older versions that lack the CVE-2019-14743 patch.

Valve Steam Client para Windows hasta 2019-08-16 permite la escalada de privilegios (a NT AUTHORITY \ SYSTEM) porque los usuarios locales pueden reemplazar las versiones actuales de SteamService.exe y SteamService.dll con versiones anteriores que carecen del parche CVE-2019-14743.

*Credits: N/A
CVSS Scores
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Local
Attack Complexity
Low
Authentication
None
Confidentiality
Complete
Integrity
Complete
Availability
Complete
* 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
  • 2023-03-08 EPSS Updated
  • 2024-08-05 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-732: Incorrect Permission Assignment for Critical Resource
CAPEC
References (1)
URL Tag Source
https://xiaoyinl.github.io/steam_EoP_bypass.html Third Party Advisory
URL Date SRC
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"
<= 2019-08-16
Search vendor "Valvesoftware" for product "Steam Client" and version " <= 2019-08-16"
-
Affected
in Microsoft
Search vendor "Microsoft"
Windows
Search vendor "Microsoft" for product "Windows"
--
Safe