Microsoft Windows SMB Client resource management

CVSS Meta Temp Score
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CTI Interest Score
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6.6$0-$5k0.00

A vulnerability classified as critical was found in Microsoft Windows (Operating System) (the affected version unknown). Affected by this vulnerability is an unknown part of the component SMB Client. The manipulation with an unknown input leads to a resource management vulnerability. The CWE definition for the vulnerability is CWE-399. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

The SMB client in Microsoft Windows 2000 SP4, Windows XP SP2 and SP3, Windows Server 2003 SP2, Windows Vista Gold, SP1, and SP2, Windows Server 2008 Gold, SP2, and R2, and Windows 7 does not properly allocate memory for SMB responses, which allows remote SMB servers and man-in-the-middle attackers to execute arbitrary code via a crafted (1) SMBv1 or (2) SMBv2 response, aka "SMB Client Memory Allocation Vulnerability."

The weakness was published 04/13/2010 by Laurent Gaffié with stratsec as MS10-020 as confirmed bulletin (Technet). The advisory is shared at microsoft.com. This vulnerability is known as CVE-2010-0269 since 01/07/2010. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details are unknown but a public exploit is available.

A public exploit has been developed by laurent gaffie and been published 4 days after the advisory. It is possible to download the exploit at exploit-db.com. It is declared as proof-of-concept. We expect the 0-day to have been worth approximately $25k-$100k. The vulnerability scanner Nessus provides a plugin with the ID 45507 (MS10-020: Vulnerabilities in SMB Client Could Allow Remote Code Execution (980232)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Windows : Microsoft Bulletins. The commercial vulnerability scanner Qualys is able to test this issue with plugin 90592 (Microsoft SMB Client Remote Code Execution Vulnerability (MS10-020)).

Upgrading eliminates this vulnerability. Applying the patch MS10-020 is able to eliminate this problem. The bugfix is ready for download at microsoft.com. The best possible mitigation is suggested to be upgrading to the latest version. A possible mitigation has been published immediately after the disclosure of the vulnerability. Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 9653.

The vulnerability is also documented in the databases at X-Force (57332), Tenable (45507) and Exploit-DB (12273). Additional details are provided at informationweek.com. Similar entries are available at 51794, 50811, 52776 and 52775.

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CPE 2.3info

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CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 6.6

VulDB Base Score: 7.3
VulDB Temp Score: 6.6
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CVSSv2info

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Exploitinginfo

Class: Resource management
CWE: CWE-399 / CWE-404
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Author: laurent gaffie
Download: 🔍

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Nessus ID: 45507
Nessus Name: MS10-020: Vulnerabilities in SMB Client Could Allow Remote Code Execution (980232)
Nessus File: 🔍
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OpenVAS ID: 902156
OpenVAS Name: Microsoft SMB Client Remote Code Execution Vulnerabilities (980232)
OpenVAS File: 🔍
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Threat Intelligenceinfo

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Countermeasuresinfo

Recommended: Upgrade
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Patch: MS10-020
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Timelineinfo

01/07/2010 🔍
04/13/2010 +96 days 🔍
04/13/2010 +0 days 🔍
04/13/2010 +0 days 🔍
04/13/2010 +0 days 🔍
04/14/2010 +1 days 🔍
04/14/2010 +0 days 🔍
04/16/2010 +1 days 🔍
04/17/2010 +1 days 🔍
04/17/2010 +0 days 🔍
04/19/2010 +2 days 🔍
03/17/2021 +3985 days 🔍

Sourcesinfo

Vendor: microsoft.com
Product: microsoft.com

Advisory: MS10-020
Researcher: Laurent Gaffié
Organization: stratsec
Status: Confirmed

CVE: CVE-2010-0269 (🔍)
OVAL: 🔍

X-Force: 57332
Vulnerability Center: 25365 - [MS10-020] Microsoft Windows SMB Client Remote Arbitrary Code Execution Vulnerability, Critical
SecurityFocus: 39312 - Microsoft Windows SMB Client Memory Allocation Remote Code Execution Vulnerability
Secunia: 39372 - Microsoft Windows SMB Client Multiple Vulnerabilities, Highly Critical
OSVDB: 64925 - Microsoft Windows SMB Client Unspecified Response Handling Memory Corruption (2010-0269)

scip Labs: https://www.scip.ch/en/?labs.20161013
Misc.: 🔍
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Entryinfo

Created: 04/19/2010 02:00
Updated: 03/17/2021 19:07
Changes: 04/19/2010 02:00 (92), 02/23/2017 10:06 (13), 03/17/2021 19:07 (3)
Complete: 🔍

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