57799 : Microsoft Windows srv2.sys Kernel Driver SMB2 Malformed NEGOTIATE PROTOCOL REQUEST Remote DoS
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Views This Week Views All Time Added to OSVDB Last Modified Modified (since 2008) Percent Complete
36 4754 over 2 years ago about 1 year ago 41 times 100%

Timeline

Disclosure Date Exploit Publish Date Vendor Solution Date
2009-09-07 2009-09-07 2009-10-13
Days of Exposure
36 days

Description

Microsoft Windows contains a flaw that may allow a malicious user to execute arbitrary code. The issue is triggered when a malicious user sends a specially crafted NEGOTIATE PROTOCOL REQUEST SMBv2 packet with an & (ampersand) character in a Process ID High header field, causing an attempted dereference of an out-of-bounds memory location. It is possible that the flaw may allow arbitrary code execution resulting in a loss of integrity.

Classification

Location: Remote / Network Access
Attack Type: Denial of Service, Input Manipulation
Impact: Loss of Confidentiality, Loss of Availability
Solution: Patch / RCS
Exploit: Exploit Public, Exploit Commercial
Disclosure: Vendor Verified, Uncoordinated Disclosure

Solution

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

Products

Microsoft Corporation
Watch-list
Windows
Watch-list
Vista
Vista SP1
Vista SP2
2008 Server
2008 Server SP2
7 RC

References

Tools & Filters

Snort

15930
40887 42106

Credit

CVSSv2 Score

CVSSv2 Base Score = 10.0
Source: nvd.nist.gov | Generated: 2009-09-09 | Disagree? | There are 1 more: View All

Access_vector_2 Access_complexity_2 Authentication_2 Confidentiality_impact_2 Integrity_impact_2 Availability_impact_2

Blogs

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.

2009/10/25 07:53:42 | Windows Update for October 2009

from: Marc Liron:Microsoft MVP

Microsoft today released a series of patches to cover security issues in the Windows operating system and Office.Here are the details on this month’s critical bulletins:MS09-050 – Vulnerabilities in SMBv2 Could Allow Remote Code Execution (975517)This security update resolves one publicly disclosed and two privately reported vulnerabilities in Server Message Block Version 2 (SMBv2). The most severe of the vulnerabilities could allow remote code execution if an attacker sent a specially crafted SMB packet to a computer running the Server service.

2009/10/19 12:20:23 | Microsoft "Patch Tuesday" - The Aftermath

from: Tenable Network Security

Black Tuesday This month Microsoft released 13 new security advisories. While 13 sounds like a moderate number, digging into each of the security advisories reveals that each one actually patches multiple vulnerabilities, bringing the grand total to 34 individual vulnerabilities. Couple that with the recent Adobe announcements disclosing 29 vulnerabilities with the Adobe Reader product and release of the associated patches and administrators have their work cut out for them .(Note that Nessus plugins have been released to detect these vulnerabilities, refer to plugin id 42119 and 42120 ).

2009/10/14 18:21:00 | [MS Security Bulletin] Minor Revisions - Issued: October 14, 2009

from: Cliff Hobbs - FAQShop.com and Microsoft MVP ConfigMgr/ SMS

Summary The following bulletins have undergone a minor revision increment. Please see the appropriate bulletin for more details.   * MS09-062 - Critical   * MS09-059 - Important   * MS09-055 - Critical   * MS09-051 - Critical   * MS09-050 - Critical   * MS09-046 - Critical Bulletin Information: * MS09-062 - Critical   - http://www.microsoft.com/technet/security/bulletin/ms09-062.mspx   - Reason for Revision: V1.1 (October 14, 2009):

2009/10/14 00:02:00 | Microsoft Security Bulletin for October 2009

from: Red Gecko

Ladies and gentlemen, we have a new record. Microsoft's Security Bulletin for October 2009 consists of a whopping 13 patches that address 34 outstanding vulnerabilities. I suppose the good news is that the SMB flaw that's had exploit code in the wild for the last month is included in the patch release, so we'll finally have some closure on that. Two critical patches target Windows 7, making them the first fixes officially released by Microsoft for their newest platform.

2009/10/13 22:37:31 | It's Microsoft Patch Tuesday: October 2009

from: Microsoft Windows

What an utter disaster this month has been for Microsoft on the security patches. I had a chance to start working on this edition before the security patches were announced, and I was so pleased at how few items there were. And then, we saw 13 (yes, thirteen ) security bulletins published, most of which are for “critical” vulnerabilities. The silver lining is that Windows 7 and Windows Server 2008 R2 were barely scathed, and most of the time, it was for shared components, not the operating system itself.

2009/10/09 01:52:40 | Static Binary Analysis of Recent SMBv2 Vulnerability

from: Longjidin's Kg Lengkong to Bukit Lada

The recent SMBv2 vulnerability (CVE-2009-3103) in Microsoft Windows has gotten a lot of attention in the past few weeks. We decided that given the publicity and nature of the vulnerability, it would be interesting to post a threat analysis. With the release of Stephen Fewer’s Metasploit module to exploit this vulnerability, technical details of the vulnerability are now publicly available.Our analysis was limited to static binary analysis of srv2.sys and srvnet.sys.

2009/09/16 14:27:00 | SMB2 Remote Exploit for Vista (CVE-2009-3103)

from: Thoughts of a Technocrat

On Sept 7th, Laurent Gaffié released a security advisory and a Proof of Concept code on his blog that generated a B.S.O.D in Windows Vista, Server 2008 array indexing error in the srv2.sys kernel driver . This can be exploited to dereference out-of-bounds memory via a specially crafted SMB packet. On Sept 8th, Microsoft released Security Advisory (975497) indicating they were investigating new public reports of a possible vulnerability in Microsoft Server Message Block (SMB) implementation.

2009/09/10 02:00:52 | Microsoft SMB2 Zero Day

from: Visible Procrastinations

A current zero day in the MS SMB2 protocol that deserves attention. … Our investigation has shown that Windows Vista, Windows Server 2008 and Windows 7 RC are affected by this vulnerability. Windows 7 RTM, Windows Server 2008 R2, Windows XP and Windows 2000 are not affected by this vulnerability. … [1] … The exploit needs no authentication, only file sharing enabled with one 1 packet to create a BSOD. We recommend filtering access to port TCP 445 with a firewall.

2009/09/09 12:47:18 | SMB2 zero-day

from: ThreatBlog

Some traffic has crossed my radar concerning a 0-day exploit that apparently enables a remote attacker to crash a Vista or Windows 7 system with SMB enabled (and according to subsequent reports, Server 2008). The original post and exploit are claimed to demonstrate the possibility of a Blue Screen Of Death (BSOD) and (normally) an automatic reboot when the SMB2 driver fails to handle malformed headers correctly.

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