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Microsoft Windows RPC/DCOM Multiple Vulnerabilities

Secunia Advisory:

SA11065

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Release Date:

2004-04-13

Last Update:

2004-04-16

Popularity:

18,095 views

Critical:

Moderately critical

Impact:

DoS
System access

Where:

From local network

Solution Status:

Vendor Patch

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 Embedded
Microsoft Windows XP Home Edition
Microsoft Windows XP Professional

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Advisory Content (Page 1 of 3)

[ 1 ] [ 2 ] [ 3 ]

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Description:
Microsoft has issued an advisory regarding multiple vulnerabilities in RPC/DCOM, where the most serious can potentially lead to a system compromise.

1) A race condition within the DCOM RPC interface when processing activation requests can be exploited by malicious people to gain SYSTEM privileges on a vulnerable system via two specially crafted activation requests initiated simultaneously.

This issue was also described in:
SA9978

2) An input validation error within the handling of RPC DCOM requests may cause the RPCSS service to consume all available memory. This can be exploited by sending a request packet with an extremely large value in the length field. Successful exploitation may lead to a Denial of Service.

3) Attackers may cause a Denial of Service by sending a specially crafted reply to messages forwarded through CIS or RPC over HTTP Proxy components.

4) Object identities are created in a way, which allows malicious people to cause applications to listen on unexpected ports. This could potentially be exploited to launch other attacks.

Change Page:
[ 1 ] [ 2 ] [ 3 ]

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