BID:15056

Microsoft Windows MSDTC Memory Corruption Vulnerability

Info

Microsoft Windows MSDTC Memory Corruption Vulnerability

Bugtraq ID:	15056
Class:	Boundary Condition Error
CVE:	CVE-2005-2119
Remote:	Yes
Local:	Yes
Published:	Oct 11 2005 12:00AM
Updated:	Jul 12 2009 05:07PM
Credit:	Discovery is credited to eEye Digital Security.
Vulnerable:	Nortel Networks Centrex IP Element Manager 8.0 Nortel Networks Centrex IP Element Manager 7.0 Nortel Networks Centrex IP Element Manager 2.5 Nortel Networks Centrex IP Client Manager 8.0 Nortel Networks Centrex IP Client Manager 7.0 Nortel Networks Centrex IP Client Manager 2.5 Nortel Networks Centrex IP Client Manager Nortel Networks CallPilot 4.0 Nortel Networks CallPilot 3.0 Microsoft Windows XP Tablet PC Edition SP1 Microsoft Windows XP Tablet PC Edition Microsoft Windows XP Professional x64 Edition Microsoft Windows XP Professional SP1 Microsoft Windows XP Professional Microsoft Windows XP Media Center Edition SP1 Microsoft Windows XP Media Center Edition Microsoft Windows XP Home SP1 Microsoft Windows XP Home Microsoft Windows XP 64-bit Edition SP1 Microsoft Windows XP 64-bit Edition Microsoft Windows Server 2003 Web Edition Microsoft Windows Server 2003 Standard x64 Edition Microsoft Windows Server 2003 Standard Edition Microsoft Windows Server 2003 Enterprise x64 Edition Microsoft Windows Server 2003 Enterprise Edition Itanium 0 Microsoft Windows Server 2003 Enterprise Edition Microsoft Windows Server 2003 Datacenter x64 Edition Microsoft Windows Server 2003 Datacenter Edition Itanium 0 Microsoft Windows Server 2003 Datacenter Edition Microsoft Windows 2000 Server SP4 Microsoft Windows 2000 Server SP3 Microsoft Windows 2000 Server SP2 Microsoft Windows 2000 Server SP1 Microsoft Windows 2000 Server + Avaya DefinityOne Media Servers + Avaya IP600 Media Servers + Avaya S3400 Message Application Server 0 + Avaya S8100 Media Servers 0 Microsoft Windows 2000 Professional SP4 Microsoft Windows 2000 Professional SP3 Microsoft Windows 2000 Professional SP2 Microsoft Windows 2000 Professional SP1 Microsoft Windows 2000 Professional Microsoft Windows 2000 Datacenter Server SP4 Microsoft Windows 2000 Datacenter Server SP3 Microsoft Windows 2000 Datacenter Server SP2 Microsoft Windows 2000 Datacenter Server SP1 Microsoft Windows 2000 Datacenter Server Microsoft Windows 2000 Advanced Server SP4 Microsoft Windows 2000 Advanced Server SP3 Microsoft Windows 2000 Advanced Server SP2 Microsoft Windows 2000 Advanced Server SP1 Microsoft Windows 2000 Advanced Server Avaya Unified Communication Center Avaya S8100 Media Servers R9 Avaya S8100 Media Servers R8 Avaya S8100 Media Servers R7 Avaya S8100 Media Servers R6 Avaya S8100 Media Servers R12 Avaya S8100 Media Servers R11 Avaya S8100 Media Servers R10 Avaya S8100 Media Servers 0 + Microsoft Windows 2000 Server + Microsoft Windows NT Server 4.0 SP6a Avaya S3400 Message Application Server 0 + Microsoft Windows 2000 Server Avaya IP600 Media Servers R9 Avaya IP600 Media Servers R8 Avaya IP600 Media Servers R7 Avaya IP600 Media Servers R6 Avaya IP600 Media Servers R12 Avaya IP600 Media Servers R11 Avaya IP600 Media Servers R10 Avaya IP600 Media Servers Avaya DefinityOne Media Servers R9 Avaya DefinityOne Media Servers R8 Avaya DefinityOne Media Servers R7 Avaya DefinityOne Media Servers R6 Avaya DefinityOne Media Servers R12 Avaya DefinityOne Media Servers R11 Avaya DefinityOne Media Servers R10 Avaya DefinityOne Media Servers

Not Vulnerable:

Discussion

Microsoft Windows MSDTC Memory Corruption Vulnerability

The Microsoft Windows MSDTC (Microsoft Distribution Transaction Coordinator) service is prone to a memory corruption vulnerability. This issue could allow for execution of arbitrary code in the context of the service. The vulnerability may be remotely exploitable in some circumstances, but will also permit local privilege escalation.

This issue is remotely exploitable on Windows 2000 platforms, since the Network DTC is enabled by default on this platform. On Windows XP, this issue may be remotely exploitable if a local user has started the service. On Windows Server 2003, this vulnerability is limited to local privilege escalation unless Network DTC has been explicitly enabled by an administrator. This issue is not present on Windows XP SP2 and Windows Server 2003 SP1.

Update: Microsoft reports several systems have experienced one or more problems after installing the critical update from Microsoft Security Bulletin MS05-051 for this issue. For a more detailed explanation of these problems please see the attached microsoft knowledge base article 909444.

Exploit / POC

Microsoft Windows MSDTC Memory Corruption Vulnerability

Reports indicate that Immunity has developed a proof of concept exploit for this issue.

An exploit by Darkeagle (msdtc_dos.c) is available.

A code execution exploit (msdtc.cpp) is available. However, the author states that the code execution may be unreliable.

UPDATE: This vulnerability is currently being exploited by the Dasher.a/Dasher.b worms.

/data/vulnerabilities/exploits/msdtc_dos.c
/data/vulnerabilities/exploits/msdtc.cpp

Solution / Fix

Microsoft Windows MSDTC Memory Corruption Vulnerability

Solution:
Microsoft has released a security bulletin to address this issue on supported platforms. Users are strongly advised to apply the patches due to the existence of malicious self-propagating code that exploits the issue.

Avaya has released advisory ASA-2005-214 to state which Avaya products are affected by The October 2005 release of Microsoft Windows security updates. Please see the referenced advisory for further information.

Microsoft knowledge base article 909444 available detailing problems experienced after the critical update from Microsoft Security Bulletin MS05-051 was installed.

Nortel Networks has released a technical support bulletin (2005006318) regarding this and other issues for their Centrex IP Client Manager (CICM). They report the vulnerabilities will be fixed in the upcoming 2.5, 7.0 and 8.0 maintenance releases. Please see the referenced bulletin for further information.

Nortel Networks has released a technical support bulletin (2005006316) regarding this issue for CallPilot. Users are advised to contact Nortel for further information.

Microsoft Windows XP Tablet PC Edition SP1