Microsoft .NET Framework CVE-2015-2504 Remote Privilege Escalation Vulnerability

Description

Microsoft .NET Framework is prone to a remote privilege-escalation vulnerability. An attacker can exploit this issue to gain elevated privileges in the context of the currently logged-in user; this can also result in the attacker gaining complete control of the affected system.

Technologies Affected

• Avaya Meeting Exchange - Client Registration Server 6.0
• Avaya Meeting Exchange - Client Registration Server 6.2
• Avaya Meeting Exchange - Recording Server 6.0
• Avaya Meeting Exchange - Recording Server 6.2
• Avaya Meeting Exchange - Streaming Server 6.0
• Avaya Meeting Exchange - Streaming Server 6.2
• Avaya Meeting Exchange - Web Conferencing Server 6.0
• Avaya Meeting Exchange - Web Conferencing Server 6.2
• Avaya Meeting Exchange - Webportal 6.0
• Avaya Meeting Exchange - Webportal 6.2
• Microsoft .NET Framework 2.0 SP2
• Microsoft .NET Framework 3.5
• Microsoft .NET Framework 3.5.1
• Microsoft .NET Framework 4.0
• Microsoft .NET Framework 4.5
• Microsoft .NET Framework 4.5.1
• Microsoft .NET Framework 4.5.2
• Microsoft .NET Framework 4.6
• Microsoft Windows 10 for 32-bit Systems
• Microsoft Windows 10 for x64-based Systems
• Microsoft Windows 7 for 32-bit Systems SP1
• Microsoft Windows 7 for x64-based Systems SP1
• Microsoft Windows 8 for 32-bit Systems
• Microsoft Windows 8 for x64-based Systems
• Microsoft Windows 8.1 for 32-bit Systems
• Microsoft Windows 8.1 for x64-based Systems
• Microsoft Windows RT 8.1
• Microsoft Windows RT
• Microsoft Windows Server 2008 R2 for Itanium-based Systems SP1
• Microsoft Windows Server 2008 R2 for x64-based Systems SP1
• Microsoft Windows Server 2008 for 32-bit Systems SP2
• Microsoft Windows Server 2008 for Itanium-based Systems SP2
• Microsoft Windows Server 2008 for x64-based Systems SP2
• Microsoft Windows Server 2012
• Microsoft Windows Server 2012 R2
• Microsoft Windows Vista Service Pack 2
• Microsoft Windows Vista x64 Edition Service Pack 2

Recommendations

Block external access at the network boundary, unless external parties require service.
Filter access to the affected computer at the network boundary if global access isn’t needed. Restricting access to only trusted computers and networks might greatly reduce the likelihood of a successful exploit.

Deploy network intrusion detection systems to monitor network traffic for malicious activity.
Deploy NIDS to monitor network traffic for signs of anomalous or suspicious activity such as unexplained incoming and outgoing traffic. This may indicate exploit attempts or activity that results from successful exploits.

Updates are available. Please see the references or vendor advisory for more information.