Microsoft Windows Layer 2 Tunneling Protocol (L2TP) code execution | CVE-2023-21543

NAME
__________
Microsoft Windows Layer 2 Tunneling Protocol (L2TP) code execution

Platforms Affected:
Microsoft Windows 7 SP1 x32
Microsoft Windows 7 SP1 x64
Microsoft Windows Server 2012
Microsoft Windows 8.1 x32
Microsoft Windows 8.1 x64
Microsoft Windows Server 2012 R2
Microsoft Windows RT 8.1
Microsoft Windows 10 x32
Microsoft Windows 10 x64
Microsoft Windows Server 2019
Microsoft Windows 10 1809 for x64-based Systems
Microsoft Windows 10 1809 for 32-bit Systems
Microsoft Windows 10 1809 for ARM64-based Systems
Microsoft Windows 10 1607 for 32-bit Systems
Microsoft Windows 10 1607 for x64-based Systems
Microsoft Windows 10 20H2 for 32-bit Systems
Microsoft Windows 10 20H2 for ARM64-based Systems
Microsoft Windows 10 20H2 for x64-based Systems
Microsoft Windows Server (Server Core installation) 2019
Microsoft Windows Server (Server Core installation) 2016
Microsoft Windows Server (Server Core installation) 2012 R2
Microsoft Windows Server (Server Core installation) 2012
Microsoft Windows Server for X64-based systems 2008 R2 SP1
Microsoft Windows Server for X64-based systems (Server Core installation) 2008 SP2
Microsoft Windows Server for 32-bit systems (Server Core installation) 2008 SP2
Microsoft Windows Server for 32-bit systems 2008 SP2
Microsoft Windows Server for X64-based systems (Server Core installation) 2008 R2 SP1
Microsoft Windows Server 2022
Microsoft Windows Server (Server Core installation) 2022
Microsoft Windows Server for X64-based systems 2008 SP2
Microsoft Windows 10 21H2 for 32-bit Systems
Microsoft Windows 10 21H2 for ARM64-based Systems
Microsoft Windows 10 21H2 for x64-based Systems
Microsoft Windows 10 22H2 for 32-bit Systems
Microsoft Windows 10 22H2 for ARM64-based Systems
Microsoft Windows 10 22H2 for x64-based Systems
Microsoft Windows Server 2022 Datacenter: Azure Edition

Risk Level:
8.1

Exploitability:
Unproven

Consequences:
Gain Access

DESCRIPTION
__________

Microsoft Windows could allow a remote attacker to execute arbitrary code on the system, caused by a flaw in the Layer 2 Tunneling Protocol (L2TP). By sending a specially-crafted request to a RAS server, an attacker could exploit this vulnerability to execute arbitrary code on the RAS server machine.

CVSS 3.0 Information
__________

Privileges Required:
None

User Interaction:
None

Scope:
Unchanged

Access Vector:
Network


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