// For flags

CVE-2020-15530

 

Severity Score

7.8
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

1
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

An issue was discovered in Valve Steam Client 2.10.91.91. The installer allows local users to gain NT AUTHORITY\SYSTEM privileges because some parts of %PROGRAMFILES(X86)%\Steam and/or %COMMONPROGRAMFILES(X86)%\Steam have weak permissions during a critical time window. An attacker can make this time window arbitrarily long by using opportunistic locks.

Se detectó un problema en Valve Steam Client 2.10.91.91. El instalador permite a usuarios locales obtener privilegios NT AUTHORITY\SYSTEM porque algunas partes de %PROGRAMFILES(X86)%\Steam y/o %COMMONPROGRAMFILES(X86)%\Steam presentan permisos débiles durante una ventana de tiempo crítica. Un atacante puede hacer que esta ventana de tiempo sea arbitrariamente larga usando bloqueos oportunistas

*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
  • 2020-07-05 CVE Reserved
  • 2020-07-05 CVE Published
  • 2023-03-08 EPSS Updated
  • 2024-08-04 CVE Updated
  • 2024-08-04 First Exploit
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
CWE
  • CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
CAPEC
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"
2.10.91.91
Search vendor "Valvesoftware" for product "Steam Client" and version "2.10.91.91"
-
Affected