Signature Detail

MS-RPC: Microsoft Distributed Transaction Server Denial of Service

This signature detects attempts to exploit known vulnerabilities in Microsoft Distributed Transaction Coordinator (MSDTC). Attackers can send a specially crafted network message to an affected system to create a denial-of-service condition and cause the MSDTC to stop responding. These vulnerabilities would not allow an attacker to execute code or to elevate their user rights.

Extended Description

Microsoft Windows Distributed Transaction Coordinator is prone to a remote heap buffer-overflow vulnerability. This issue is due to the failure of the software to properly bounds-check user-supplied input before copying it to an insufficiently sized memory buffer. This BID is flagged with the 'Conflicting Details' credibility rating because of the discrepancy between the vendor and the discoverer as to the possibility of remote code execution. Microsoft states that this issue may be exploited only to disrupt the MSDTC service and any services that depend on MSDTC, but the discoverer of this issue states that it may be exploited for remote code execution. This vulnerability affects Windows NT and Windows 2000 by default, since the service comes enabled. The vulnerability affects Windows XP and Windows Server 2003 only if the service is manually enabled.

Affected Products

• Microsoft Windows 2000 Advanced Server SP1
• Microsoft Windows 2000 Advanced Server SP2
• Microsoft Windows 2000 Advanced Server SP3
• Microsoft Windows 2000 Advanced Server SP4
• Microsoft Windows 2000 Advanced Server
• Microsoft Windows 2000 Datacenter Server SP1
• Microsoft Windows 2000 Datacenter Server SP2
• Microsoft Windows 2000 Datacenter Server SP3
• Microsoft Windows 2000 Datacenter Server SP4
• Microsoft Windows 2000 Datacenter Server
• Microsoft Windows 2000 Professional SP1
• Microsoft Windows 2000 Professional SP2
• Microsoft Windows 2000 Professional SP3
• Microsoft Windows 2000 Professional SP4
• Microsoft Windows 2000 Professional
• Microsoft Windows 2000 Server SP1
• Microsoft Windows 2000 Server SP2
• Microsoft Windows 2000 Server SP3
• Microsoft Windows 2000 Server SP4
• Microsoft Windows 2000 Server
• Microsoft Windows NT 4.0
• Microsoft Windows NT 4.0 SP1
• Microsoft Windows NT 4.0 SP2
• Microsoft Windows NT 4.0 SP3
• Microsoft Windows NT 4.0 SP4
• Microsoft Windows NT 4.0 SP5
• Microsoft Windows NT 4.0 SP6
• Microsoft Windows NT 4.0 SP6a
• Microsoft Windows NT Enterprise Server 4.0
• Microsoft Windows NT Enterprise Server 4.0 SP1
• Microsoft Windows NT Enterprise Server 4.0 SP2
• Microsoft Windows NT Enterprise Server 4.0 SP3
• Microsoft Windows NT Enterprise Server 4.0 SP4
• Microsoft Windows NT Enterprise Server 4.0 SP5
• Microsoft Windows NT Enterprise Server 4.0 SP6
• Microsoft Windows NT Enterprise Server 4.0 SP6a
• Microsoft Windows NT Server 4.0
• Microsoft Windows NT Server 4.0 SP1
• Microsoft Windows NT Server 4.0 SP2
• Microsoft Windows NT Server 4.0 SP3
• Microsoft Windows NT Server 4.0 SP4
• Microsoft Windows NT Server 4.0 SP5
• Microsoft Windows NT Server 4.0 SP6
• Microsoft Windows NT Server 4.0 SP6a
• Microsoft Windows NT Terminal Server 4.0
• Microsoft Windows NT Terminal Server 4.0 SP1
• Microsoft Windows NT Terminal Server 4.0 SP2
• Microsoft Windows NT Terminal Server 4.0 SP3
• Microsoft Windows NT Terminal Server 4.0 SP4
• Microsoft Windows NT Terminal Server 4.0 SP5
• Microsoft Windows NT Terminal Server 4.0 SP6
• Microsoft Windows NT Terminal Server 4.0 SP6a
• Microsoft Windows NT Workstation 4.0
• Microsoft Windows NT Workstation 4.0 SP1
• Microsoft Windows NT Workstation 4.0 SP2
• Microsoft Windows NT Workstation 4.0 SP3
• Microsoft Windows NT Workstation 4.0 SP4
• Microsoft Windows NT Workstation 4.0 SP5
• Microsoft Windows NT Workstation 4.0 SP6
• Microsoft Windows NT Workstation 4.0 SP6a
• Microsoft Windows Server 2003 Datacenter Edition
• Microsoft Windows Server 2003 Datacenter Edition Itanium
• Microsoft Windows Server 2003 Enterprise Edition
• Microsoft Windows Server 2003 Enterprise Edition Itanium
• Microsoft Windows Server 2003 Standard Edition
• Microsoft Windows Server 2003 Web Edition
• Microsoft Windows XP
• Microsoft Windows XP 64-bit Edition SP1
• Microsoft Windows XP 64-bit Edition
• Microsoft Windows XP 64-bit Edition Version 2003 SP1
• Microsoft Windows XP 64-bit Edition Version 2003
• Microsoft Windows XP Embedded SP1
• Microsoft Windows XP Embedded
• Microsoft Windows XP Gold
• Microsoft Windows XP Home SP1
• Microsoft Windows XP Home SP2
• Microsoft Windows XP Home
• Microsoft Windows XP Media Center Edition SP1
• Microsoft Windows XP Media Center Edition SP2
• Microsoft Windows XP Media Center Edition
• Microsoft Windows XP Professional SP1
• Microsoft Windows XP Professional SP2
• Microsoft Windows XP Professional

References

• BugTraq: 17905
• CVE: CVE-2006-1184
• CVE: CVE-2006-0034