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TITLE:
Microsoft Windows DNS Service Buffer Overflow Vulnerability

SECUNIA ADVISORY ID:
SA24871

VERIFY ADVISORY:
http://secunia.com/advisories/24871/

CRITICAL:
Highly critical

IMPACT:
System access

WHERE:
>From local network

OPERATING SYSTEM:
Microsoft Windows Storage Server 2003
http://secunia.com/product/12399/
Microsoft Windows Server 2003 Web Edition
http://secunia.com/product/1176/
Microsoft Windows Server 2003 Standard Edition
http://secunia.com/product/1173/
Microsoft Windows Server 2003 Enterprise Edition
http://secunia.com/product/1174/
Microsoft Windows Server 2003 Datacenter Edition
http://secunia.com/product/1175/
Microsoft Windows 2000 Server
http://secunia.com/product/20/
Microsoft Windows 2000 Datacenter Server
http://secunia.com/product/1177/
Microsoft Windows 2000 Advanced Server
http://secunia.com/product/21/

DESCRIPTION:
A vulnerability has been reported in Microsoft Windows, which can be
exploited by malicious people to compromise a vulnerable system.

The vulnerability is caused due to a boundary error in an RPC
interface of the DNS service used for remote management of the
service. This can be exploited to cause a stack-based buffer overflow
via a specially crafted RPC request.

Successful exploitation allows execution of arbitrary code with
SYSTEM privileges.

NOTE: According to Microsoft, this is already being actively
exploited on a limited scale.

SOLUTION:
The vendor recommends disabling the remote management over RPC
capability for DNS servers.

PROVIDED AND/OR DISCOVERED BY:
Discovered as a 0-day.

ORIGINAL ADVISORY:
Microsoft:
http://www.microsoft.com/technet/security/advisory/935964.mspx
http://blogs.technet.com/msrc/archive/2007/04/12/microsoft-security-advisory-935964-posted.aspx

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