26439 : Microsoft Windows SMB MRXSMB.SYS MrxSmbCscIoctlCloseForCopyChunk Remote DoS
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Views This Week	Views All Time	Added to OSVDB	Last Modified	Modified (since 2008)	Percent Complete
5	805	over 5 years ago	12 months ago	4 times	100%

Timeline

Discovery Date	Vendor Informed Date	Vendor Ack Date	Disclosure Date
2006-02-07	2006-02-07	2006-02-07	2006-06-13

Keywords

aka the "SMB Invalid Handle Vulnerability."

Description

Windows contains a flaw that may allow a remote denial of service. The issue is triggered when the MrxSmbCsIoctlCloseForCopyChunk function of SMB is passed the file handle for a shadow device, which will create a deadlock and result in loss of availability for the service.

Classification

Location: Remote / Network Access
Attack Type: Denial of Service, Input Manipulation
Impact: Loss of Availability
Exploit: Exploit Unknown
Disclosure: OSVDB Verified

Solution

Currently, there are no known workarounds or upgrades to correct this issue. However, Microsoft has released a patch to address this vulnerability.

Subsequent reports indicate the patch for this issue does not properly mitigate the vulnerability.

Products

Microsoft Corporation	Windows	2000 SP4
		XP SP1
		XP SP2
		XP Professional x64 Edition
		2000 SP4
		XP SP1
		XP SP2
		XP Professional x64 Edition
	Windows Server	2003
		2003 SP1
		2003 for Itanium
		2003 SP1 for Itanium
		2003 x64 Edition
		2003
		2003 SP1
		2003 for Itanium
		2003 SP1 for Itanium
		2003 x64 Edition

References

Bugtraq ID: 18357
CVE ID: 2006-2374 (see also: NVD)
Secunia Advisory ID: 20635
SCIP VulDB ID: 2311
Related OSVDB ID: 26440
Microsoft Knowledge Base Article: 914389
VUPEN Advisory: ADV-2006-2327
Keyword: aka the "SMB Invalid Handle Vulnerability."
Mail List Post: http://archives.neohapsis.com/archives/bugtraq/2006-06/0231.html
http://archives.neohapsis.com/archives/bugtraq/2006-06/0233.html
http://archives.neohapsis.com/archives/bugtraq/2006-06/0307.html
Other Advisory URL: http://www.idefense.com/intelligence/vulnerabilities/display.php?id=409
http://www.reversemode.com/index.php?option=com_content&task=view&id=14&Itemid=5
Microsoft Security Bulletin: MS06-030

Tools & Filters

	21692

Credit

Rubén Santamarta - iDefense Labs VCP

CVSSv2 Score

CVSSv2 Base Score = 2.1
Source: nvd.nist.gov | Generated: 2006-06-14 | Disagree?

Blogs

This product uses the Daylife API but is not endorsed or certified by Daylife.

This section lists the latest news and blogs found via the daylife API (and for older items, the technorati API), which mention or otherwise discuss this vulnerability.

None found at this time

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