CVE-2024-43455: Windows Remote Desktop Licensing Service Spoofing Vulnerability

Overview

Severity

High (CVSS 8.8)

CVSS Vector

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

Category

Spoofing

Exploit Status

Not Exploited

Exploitation Likelihood

Less Likely

Patch Tuesday

2024-Sep

Released

2024-09-10

EPSS Score

4.80% (percentile: 89.5%)

FAQ

How could an attacker exploit this vulnerability? To successfully exploit this vulnerability an attacker must send specially crafted requests to the Terminal Server Licensing Service, which must be running and accessible over the network.

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 (11)

• 5043050
• 5042881
• 5042880
• 5043055
• 5043051
• 5043135
• 5043087
• 5043129
• 5043092
• 5043125
• 5043138

Acknowledgments

<a href="https://twitter.com/ver0759">Chunyang Han</a>, <a href="https://twitter.com/edwardzpeng">Zhiniang Peng</a>, <a href="https://twitter.com/lewislee53">Lewis Lee</a>

Revision History

• 2024-09-10: Information published.