CVE-2024-38138: Windows Deployment Services Remote Code Execution Vulnerability

Overview

Severity

High (CVSS 7.5)

CVSS Vector

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C

Category

Remote Code Execution

Exploit Status

Not Exploited

Exploitation Likelihood

Less Likely

Patch Tuesday

2024-Aug

Released

2024-08-13

Last Updated

2024-10-10

EPSS Score

4.06% (percentile: 88.5%)

FAQ

According to the CVSS metric, the attack complexity is high (AC:H). What does that mean for this vulnerability? For an attacker to exploit this vulnerability, they would need to have knowledge of a specific operation that triggers a memory allocation failure, specifically a use after free. According to the CVSS metric, privileges required is low (PR:L). What does that mean for this vulnerability? Successful exploitation of this vulnerability requires the attacker to be an authenticated Windows Deployment Services user and to request a certain operation via an RPC call.

Affected Products (17)

Windows

• Windows Server 2019
• Windows Server 2019 (Server Core installation)
• Windows Server 2022
• Windows Server 2022 (Server Core installation)
• Windows Server 2022, 23H2 Edition (Server Core installation)
• Windows Server 2016
• Windows Server 2016 (Server Core installation)

ESU

• Windows Server 2008 for 32-bit Systems Service Pack 2
• Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation)
• Windows Server 2008 for x64-based Systems Service Pack 2
• Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation)
• Windows Server 2008 R2 for x64-based Systems Service Pack 1
• Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation)
• Windows Server 2012
• Windows Server 2012 (Server Core installation)
• Windows Server 2012 R2
• Windows Server 2012 R2 (Server Core installation)

Security Updates (10)

• 5044277
• 5042881
• 5043055
• 5043051
• 5043135
• 5043087
• 5043129
• 5043092
• 5043125
• 5043138

Acknowledgments

<a href="https://twitter.com/vv474172261">VictorV(Tang tianwen)</a> with <a href="https://www.cyberkl.com/">Kunlun Lab</a>

Revision History

• 2024-08-13: Information published.
• 2024-09-10: The following updates have been made to CVE-2024-38138: 1) In the Security Updates table, added all supported versions of the following as they are affected by this vulnerability: Windows Server 2008, Windows Server 2008 R2, Windows Server 2012, and Windows Server 2012 R2. 2) Further, to comprehensively address this vulnerability, Microsoft has released September 2024 security updates for all affected versions of Windows Server 2016, Windows Server 2019, Windows Server 2022, and Windows Server 2022, 23H2 Edition. Microsoft recommends that customers install the updates to be fully protected from the vulnerability. Customers whose systems are configured to receive automatic updates do not need to take any further action.
• 2024-10-10: Updated product information in the Software Update table. This is an informational change only.