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Microsoft Security Bulletin MS08-067 – Critical
Vulnerability in Server Service Could Allow Remote Code Execution (958644)
Published: October 23, 2008
Version: 1.0

General Information

Executive SummaryThis security update resolves a privately reported vulnerability in the Server service.

The vulnerability could allow remote code execution if an affected system received a specially crafted RPC request. On Microsoft Windows 2000, Windows XP, and Windows Server 2003 systems, an attacker could exploit this vulnerability without authentication to run arbitrary code.

It is possible that this vulnerability could be used in the crafting of a wormable exploit. Firewall best practices and standard default firewall configurations can help protect network resources from attacks that originate outside the enterprise perimeter.

This security update is rated Critical for all supported editions of Microsoft Windows 2000, Windows XP, Windows Server 2003, and rated Important for all supported editions of Windows Vista and Windows Server 2008.

For more information, see the subsection, Affected and Non-Affected Software, in this section.

The security update addresses the vulnerability by correcting the way that the Server service handles RPC requests.

For more information about the vulnerability, see the Frequently Asked Questions (FAQ) subsection for the specific vulnerability entry under the next section, Vulnerability Information.

Recommendation:Microsoft recommends that customers apply the update immediately.
source: http://www.microsoft.com/technet/sec.../ms08-067.mspx


dalam artikel lain dari National Vulnerability Database, US - NIST (United States - National Institute for Standards and Technology)

National Vulnerability Database (NVD)National Vulnerability Database ()

Buffer underflow in Microsoft Windows 2000 SP4, XP SP2 and SP3, Server 2003 SP1 and SP2, Vista Gold and SP1, and Server 2008 allows remote attackers to execute arbitrary code via a Server Message Block (SMB) request that contains a filename with a crafted length, aka "SMB Buffer Underflow Vulnerability.

This means this vulnerability could be exploited to create a worm. Further it means if one PC gets infected on your network, then quickly all of them will.

It seems there is already an exploit in the wild - it is set to "go off" during the Thanksgiving holiday here in the states.

This is a very serious vulnerability and I suggest making sure your computers are updated with the patch as soon as possible.