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Microsoft Windows MSDTC and COM+ Vulnerabilities
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Secunia Advisory:
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SA17161
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Release Date:
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2005-10-11
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Last Update:
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2005-11-21
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Popularity:
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21,038 views
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Critical:
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Moderately critical
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Impact:
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Privilege escalation
DoS
System access
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Where:
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From local network
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Solution Status:
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Vendor Patch
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| OS: | Microsoft Windows 2000 Advanced Server
Microsoft Windows 2000 Datacenter Server
Microsoft Windows 2000 Professional
Microsoft Windows 2000 Server
Microsoft Windows Server 2003 Datacenter Edition
Microsoft Windows Server 2003 Enterprise Edition
Microsoft Windows Server 2003 Standard Edition
Microsoft Windows Server 2003 Web Edition
Microsoft Windows XP Embedded
Microsoft Windows XP Home Edition
Microsoft Windows XP Professional
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| CVE reference: | CVE-2005-1978
CVE-2005-1979
CVE-2005-1980
CVE-2005-2119
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Description:
Some vulnerabilities have been reported in Microsoft Windows, which can be exploited by malicious, local users to gain escalated privileges, or by malicious people to cause a DoS (Denial of Service) or compromise a vulnerable system.
1) A memory allocation error in the MSDTC (Microsoft Distributed Transaction Coordinator) interface proxy can be exploited to execute arbitrary code or to gain escalated privileges. The vulnerability is caused due to an error in the "MIDL_user_allocate()" function which allocates a single 4KB page of memory regardless of the actual amount of memory requested.
The vulnerability has been reported in the following versions:
* Windows 2000
* Windows XP Service Pack 1
* Windows Server 2003
2) An error in COM+ can be exploited to execute arbitrary code on a vulnerable system via a specially crafted network message, or to gain escalated privileges by running a specially crafted application.
The vulnerability has been reported in the following versions:
* Windows 2000 (remote code execution)
* Windows XP Service Pack 1 (remote code execution)
* Windows XP Service Pack 2 (local privilege escalation)
* Windows Server 2003 (local privilege escalation)
* Windows Server 2003 Service Pack 1 (local privilege escalation)
3) An error in the MSDTC when validating TIP (Transaction Internet Protocol) requests can lead to a DoS. This can be exploited by sending a sequence of commands to cause the MSDTC service to connect-back to a malicious server. The malicious server can then send an unexpected protocol command during the reconnection request to crash the MSDTC server.
Successful exploitation requires that the TIP protocol is enabled for MSDTC.
4) An error in the MSDTC when validating TIP (Transaction Internet Protocol) requests can be exploited to cause the MSDTC service to flood a specific IP address and port via a specific sequence of commands.
Successful exploitation requires that the TIP protocol is enabled for MSDTC.
Solution:
Apply patches.
Microsoft Windows 2000 (requires SP 4):
http://www.microsoft.com/downloads/de...=4E5B96D8-BA74-4008-80D9-922364ABC6AC
Microsoft Windows XP (requires SP 1 or SP 2):
http://www.microsoft.com/downloads/de...=20F79CE7-D4DB-42D7-8E57-58656A3FB2F7
Microsoft Windows XP Professional x64 Edition:
http://www.microsoft.com/downloads/de...=A6EC1352-042E-4FFB-B379-0E1C06AB9DBE
Microsoft Windows XP Embedded (with SP2):
http://www.microsoft.com/downloads/de...=e7b6d199-7607-44a8-96fd-5a2386427bd9
Microsoft Windows XP Embedded (with SP1):
http://www.microsoft.com/downloads/de...=47633799-2103-4fc2-b63d-a9581a2d2f2d
Microsoft Windows Server 2003 (with or without SP 1):
http://www.microsoft.com/downloads/de...=CA202CCC-792E-4462-9A2F-A20D1F8607F7
Microsoft Windows Server 2003 (Itanium) (with or without SP 1):
http://www.microsoft.com/downloads/de...=554A86A5-0B03-4CA9-A32D-642E40570424
Microsoft Windows Server 2003 x64 Edition:
http://www.microsoft.com/downloads/de...=1FF26142-6E1E-4E17-9DCD-994B339A69CF
Provided and/or discovered by:
1) Fang Xing, eEye Digital Security
2) Cesar Cerrudo, Argeniss
3-4) Discovered by anonymous person and reported via iDEFENSE.
Changelog:
2005-10-12: Added information from eEye Digital Security and iDEFENSE. Updated "Description", "Original Advisory", "Other References" and credit sections.
2005-11-21: Added patch information for Windows XP Embedded.
Original Advisory:
MS05-051 (KB902400):
http://www.microsoft.com/technet/security/Bulletin/MS05-051.mspx
eEye Digital Security:
http://www.eeye.com/html/research/advisories/AD20051011b.html
iDEFENSE:
http://www.idefense.com/application/poi/display?id=319
http://www.idefense.com/application/poi/display?id=320
Other References:
US-CERT VU#950516:
http://www.kb.cert.org/vuls/id/950516
US-CERT VU#180868:
http://www.kb.cert.org/vuls/id/180868
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Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.
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