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Microsoft Windows RPCSS Service DCOM Interface Vulnerabilities
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Secunia Advisory:
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SA9692
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Release Date:
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2003-09-10
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Last Update:
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2003-10-15
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Popularity:
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31,997 views
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Critical:
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Highly critical
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Impact:
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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 NT 4.0 Server
Microsoft Windows NT 4.0 Server, Terminal Server Edition
Microsoft Windows NT 4.0 Workstation
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 Home Edition
Microsoft Windows XP Professional
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Subscribe:
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Instant alerts on relevant vulnerabilities 
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| | CVE reference: | CVE-2003-0528
CVE-2003-0605
CVE-2003-0715
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Description:
Three vulnerabilities have been identified in Microsoft Windows, which can be exploited by malicious people to compromise a vulnerable system or cause a DoS (Denial of Service).
The vulnerabilities affect the DCOM (Distributed Component Object Model) interface within the RPCSS Service and are caused due to boundary errors and an unspecified error when handling certain RPC messages.
Two of the vulnerabilities can be exploited to cause heap overflows allowing execution of arbitrary code on a vulnerable system with "Local System" privileges. The third can be exploited to crash the RPCSS service.
Secunia has constructed a vulnerability test, which can be used to check if you are affected by these issues:
http://secunia.com/MS03-039/
NOTE: Secunia would normally rate these kinds of vulnerabilities as "Moderately critical", since systems only should expose RPC services to other systems on a LAN.
However, since the vulnerabilities are similar to the issue exploited by the Blaster worm, which infected numerous systems, the vulnerabilities have been rated as "Highly critical" instead.
A universal exploit for this vulnerability has been released. Secunia has received credible reports that this exploit may cause a DoS on patched systems by exploiting another vulnerability in the handling of RPC requests:
SA9978
Solution:
Microsoft has issued patches, which can be installed manually or via WindowsUpdate.
Windows NT Workstation (requires SP6a installed):
http://www.microsoft.com/downloads/de...-8DB5-CF8C188879DA&displaylang=en
Windows NT Server 4.0 (requires SP6a installed):
http://www.microsoft.com/downloads/de...-B376-2DACCE773DC0&displaylang=en
Windows NT Server 4.0, Terminal Server Edition (requires SP6 installed):
http://www.microsoft.com/downloads/de...-A2E9-506D17BB883F&displaylang=en
Windows 2000 (requires SP2, SP3, or SP4 installed):
http://www.microsoft.com/downloads/de...-8B94-817EA8485DD1&displaylang=en
Windows XP:
http://www.microsoft.com/downloads/de...-B424-95D32CFC8CBA&displaylang=en
Windows XP 64 bit Edition:
http://www.microsoft.com/downloads/de...-9DC3-7053EC206D65&displaylang=en
Windows XP 64 bit Edition Version 2003:
http://www.microsoft.com/downloads/de...-9B6D-84106F66059B&displaylang=en
Windows Server 2003:
http://www.microsoft.com/downloads/de...-87A4-C208E9BA4787&displaylang=en
Windows Server 2003 64 bit Edition:
http://www.microsoft.com/downloads/de...-9B6D-84106F66059B&displaylang=en
Provided and/or discovered by:
Barnaby Jack and Riley Hassell, eEye Digital Security.
Yuan Renguang, NSFOCUS Security Team.
Xue Yong Zhi and Renaud Deraison, Tenable Network Security.
Changelog:
2003-09-11: Added links to eEye and NSFOCUS advisories in "Original Advisory" section.
2003-09-18: Included link to Secunia vulnerability test.
2003-09-23: Added link to Xfocus research.
2003-10-11: Added information about an exploit, which may work even if the patch has been applied.
2003-10-13: Updated "Description" section.
2003-10-15: Updated exploit information and "Solution" section.
Original Advisory:
Microsoft Security Bulletin MS03-039:
http://www.microsoft.com/technet/security/bulletin/MS03-039.asp
NSFOCUS advisory:
http://www.nsfocus.com/english/homepage/research/0306.htm
eEye Digital Security advisory:
http://www.eeye.com/html/Research/Advisories/AD20030910.html
Other References:
SA9978:
http://secunia.com/advisories/9978/
Knowledge base article describing a scanning tool for identifying systems without the MS03-039 patch installed:
http://support.microsoft.com/?kbid=827363
Xfocus Analysis:
http://www.xfocus.org/documents/200309/4.html
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About this Secunia Advisory
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Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.
Secunia collects, validates, and verifies all vulnerability reports issued by security research groups, vendors, and others.
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2nd Dec, 2008
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New advisories:
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Updated advisories:
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