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Vulnerability:Win/RemoteDesktop.RDP.RCE!CVE-2012-0002

Severity rating
Critical

Class/Type
Vulnerability

Discovered date
2012-03-13T00:00:00

Attack vector
Remote

Authentication required
No

Public exploits available
No

Signature detection
Medium



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Description

A remote code execution vulnerability exists in the way that the Remote Desktop Protocol accesses an object in memory that has been improperly initialized or has been deleted. An attacker who successfully exploited this vulnerability could run abitrary code on the target system.



Impact

An attacker who successfully exploited this vulnerability could take complete control of the affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.



Technical details (analysis)

Remote Desktop Protocol (RDP) lets users create a virtual session on their desktop computers. RDP allows remote users to access all of the data and applications on their computers. The vulnerability is caused when the Remote Desktop Protocol processes a sequence of specially crafted packets, resulting in the access of an object in memory that has not been properly initialized or has been deleted. For systems running supported editions of Windows XP and Windows Server 2003, a remote unauthenticated attacker could exploit this vulnerability by sending a sequence of specially crafted RDP packets to the target system. For systems running supported editions of Windows Vista, Windows 7, Windows Server 2008, and Windows Server 2008 R2 with Network Level Authentication turned off, a remote unauthenticated attacker could exploit this vulnerability by sending a sequence of specially crafted RDP packets to the target system. For systems running supported editions of Windows Vista, Windows 7, Windows Server 2008, and Windows Server 2008 R2 with Network Level Authentication turned on, an attacker would first need to authenticate to Remote Desktop Services using a valid account on the target system. Then, the attacker could exploit this vulnerability by sending a sequence of specially crafted RDP packets to the target system.



Affected software

Windows XP Service Pack 3
Windows XP Professional x64 Edition Service Pack 2
Windows Server 2003 Service Pack 2
Windows Server 2003 x64 Edition Service Pack 2
Windows Server 2003 with SP2 for Itanium-based Systems
Windows Vista Service Pack 2
Windows Vista x64 Edition Service Pack 2
Windows Server 2008 for 32-bit Systems Service Pack 2
Windows Server 2008 for x64-based Systems Service Pack 2
Windows Server 2008 for Itanium-based Systems Service Pack 2
Windows 7 for 32-bit Systems and Windows 7 for 32-bit Systems Service Pack 1
Windows 7 for 32-bit Systems and Windows 7 for 32-bit Systems Service Pack 1
Windows 7 for x64-based Systems and Windows 7 for x64-based Systems Service Pack 1
Windows 7 for x64-based Systems and Windows 7 for x64-based Systems Service Pack 1
Windows Server 2008 R2 for x64-based Systems and Windows Server 2008 R2 for x64-based Systems Service Pack 1
Windows Server 2008 R2 for x64-based Systems and Windows Server 2008 R2 for x64-based Systems Service Pack 1
Windows Server 2008 R2 for Itanium-based Systems and Windows Server 2008 R2 for Itanium-based Systems Service Pack 1
Windows Server 2008 R2 for Itanium-based Systems and Windows Server 2008 R2 for Itanium-based Systems Service Pack 1



Non-affected software

All applications not on the affected list.



References




Solutions




NIS signature

Name: Vulnerability:Win/RemoteDesktop.RDP.RCE!CVE-2012-0002
Release Date: 2012-03-13T00:00:00



Known false positives

No known false positives at this time.



Work-arounds

Disable Terminal Services, Remote Desktop, Remote Assistance, and Windows Small Business Server 2003 Remote Web Workplace feature if no longer required
Block TCP port 3389 at the enterprise perimeter firewall
Enable Network Level Authentication on systems running supported editions of Windows Vista, Windows 7, Windows Server 2008, and Windows Server 2008 R2