Microsoft Windows SSLv3/TLS CVE-2013-0013 Security Bypass Vulnerability

Description

Microsoft Windows is prone to a security-bypass vulnerability when handling the SSL version 3 (SSLv3) and TLS protocols. To exploit this issue, an attacker must inject specially crafted content into an SSL/TLS session by performing man-in-the-middle attacks. Successful exploits may allow attackers to bypass security features of SSLv3 and TLS protocols and intercept communications between a client and a server.

Technologies Affected

• Microsoft Windows 7 for 32-bit Systems
• Microsoft Windows 7 for 32-bit Systems SP1
• Microsoft Windows 7 for x64-based Systems
• Microsoft Windows 7 for x64-based Systems SP1
• Microsoft Windows 8 for 32-bit Systems
• Microsoft Windows 8 for 64-bit Systems
• Microsoft Windows RT
• Microsoft Windows Server 2008 R2 Itanium
• Microsoft Windows Server 2008 R2 Itanium SP1
• Microsoft Windows Server 2008 R2 for x64-based Systems
• Microsoft Windows Server 2008 R2 for x64-based Systems SP1
• Microsoft Windows Server 2008 for 32-bit Systems
• Microsoft Windows Server 2008 for 32-bit Systems SP2
• Microsoft Windows Server 2008 for Itanium-based Systems
• Microsoft Windows Server 2008 for Itanium-based Systems SP2
• Microsoft Windows Server 2008 for x64-based Systems
• Microsoft Windows Server 2008 for x64-based Systems SP2
• Microsoft Windows Server 2012
• Microsoft Windows Vista Home Basic SP1
• Microsoft Windows Vista Home Basic SP2
• Microsoft Windows Vista Home Premium SP1
• Microsoft Windows Vista Home Premium SP2
• Microsoft Windows Vista Ultimate SP1
• Microsoft Windows Vista Ultimate SP2
• Microsoft Windows Vista x64 Edition SP2
• Microsoft Windows Vista x64 Edition Service Pack 2

Recommendations

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

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. This includes but is not limited to unexplained incoming and outgoing traffic. This may indicate exploit attempts or activity that results from successful exploits.

Updates are available. Please see the references for details.