CVE-2020-15530

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.

CVSS v3 7.8 HIGH
CVSS v2.0 7.2 HIGH

7.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

7.2^/10

CVSS v2.0 : HIGH

Vector : AV:L/AC:L/Au:N/C:C/I:C/A:C

Exploitability : 3.9 / Impact : 10.0

Access Vector LOCAL

Access Complexity LOW

Authentication NONE

Confidentiality Impact COMPLETE

Integrity Impact COMPLETE

Availability Impact COMPLETE

References

Link	Resource
http://daniels-it-blog.blogspot.com/2020/07/steam-arbitrary-code-execution-part-2.html	Exploit Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:valvesoftware:steam_client:2.10.91.91:*:*:*:*:*:*:*

History

No history.

Information

Published : 2020-07-05 01:15

Updated : 2023-12-10 13:27

NVD link : CVE-2020-15530

Mitre link : CVE-2020-15530

CVE.ORG link : CVE-2020-15530

JSON object : View

Products Affected

valvesoftware

steam_client

CWE

CWE-362

Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

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