// For flags

CVE-2023-29360

Microsoft Streaming Service Untrusted Pointer Dereference Vulnerability

Severity Score

8.4
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

1
*Multiple Sources

Exploited in Wild

Yes
*KEV

Decision

Act
*SSVC
Descriptions

Microsoft Streaming Service Elevation of Privilege Vulnerability

This vulnerability allows local attackers to escalate privileges on affected installations of Microsoft Windows. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability.
The specific flaw exists within the mskssrv driver. The issue results from the lack of proper validation of a user-supplied value prior to dereferencing it as a pointer. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of SYSTEM.

Microsoft Streaming Service contains an untrusted pointer dereference vulnerability that allows for privilege escalation, enabling a local attacker to gain SYSTEM privileges.

*Credits: Thomas Imbert (@masthoon) from Synacktiv (@Synacktiv)
CVSS Scores
Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High
* Common Vulnerability Scoring System
SSVC
  • Decision:Act
Exploitation
Active
Automatable
No
Tech. Impact
Total
* Organization's Worst-case Scenario
Timeline
  • 2023-04-04 CVE Reserved
  • 2023-06-13 CVE Published
  • 2024-02-29 Exploited in Wild
  • 2024-03-21 KEV Due Date
  • 2024-08-02 CVE Updated
  • 2024-08-31 First Exploit
  • 2024-11-23 EPSS Updated
CWE
  • CWE-822: Untrusted Pointer Dereference
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Microsoft
Search vendor "Microsoft"
Windows 10 1607
Search vendor "Microsoft" for product "Windows 10 1607"
< 10.0.14393.5989
Search vendor "Microsoft" for product "Windows 10 1607" and version " < 10.0.14393.5989"
x64
Affected
Microsoft
Search vendor "Microsoft"
Windows 10 1607
Search vendor "Microsoft" for product "Windows 10 1607"
< 10.0.14393.5989
Search vendor "Microsoft" for product "Windows 10 1607" and version " < 10.0.14393.5989"
x86
Affected
Microsoft
Search vendor "Microsoft"
Windows 10 1809
Search vendor "Microsoft" for product "Windows 10 1809"
< 10.0.17763.4499
Search vendor "Microsoft" for product "Windows 10 1809" and version " < 10.0.17763.4499"
-
Affected
Microsoft
Search vendor "Microsoft"
Windows 10 21h2
Search vendor "Microsoft" for product "Windows 10 21h2"
< 10.0.19044.3086
Search vendor "Microsoft" for product "Windows 10 21h2" and version " < 10.0.19044.3086"
-
Affected
Microsoft
Search vendor "Microsoft"
Windows 10 22h2
Search vendor "Microsoft" for product "Windows 10 22h2"
< 10.0.19045.3086
Search vendor "Microsoft" for product "Windows 10 22h2" and version " < 10.0.19045.3086"
-
Affected
Microsoft
Search vendor "Microsoft"
Windows 11 21h2
Search vendor "Microsoft" for product "Windows 11 21h2"
< 10.0.22000.2057
Search vendor "Microsoft" for product "Windows 11 21h2" and version " < 10.0.22000.2057"
-
Affected
Microsoft
Search vendor "Microsoft"
Windows 11 22h2
Search vendor "Microsoft" for product "Windows 11 22h2"
< 10.0.22621.1848
Search vendor "Microsoft" for product "Windows 11 22h2" and version " < 10.0.22621.1848"
-
Affected
Microsoft
Search vendor "Microsoft"
Windows Server 2016
Search vendor "Microsoft" for product "Windows Server 2016"
< 10.0.14393.5989
Search vendor "Microsoft" for product "Windows Server 2016" and version " < 10.0.14393.5989"
-
Affected
Microsoft
Search vendor "Microsoft"
Windows Server 2019
Search vendor "Microsoft" for product "Windows Server 2019"
< 10.0.17763.4499
Search vendor "Microsoft" for product "Windows Server 2019" and version " < 10.0.17763.4499"
-
Affected
Microsoft
Search vendor "Microsoft"
Windows Server 2022
Search vendor "Microsoft" for product "Windows Server 2022"
< 10.0.20348.1784
Search vendor "Microsoft" for product "Windows Server 2022" and version " < 10.0.20348.1784"
-
Affected