Microsoft Windows Server 2008/Vista SMB Processor EducatedScholar resource management
| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 7.0 | $0-$5k | 0.02 |
A vulnerability was found in Microsoft Windows Server 2008/Vista (Operating System). It has been rated as critical. This issue affects some unknown processing of the component SMB Processor. The manipulation with an unknown input leads to a resource management vulnerability (EducatedScholar). Using CWE to declare the problem leads to CWE-399. Impacted is confidentiality, integrity, and availability.
The weakness was released 09/08/2009 by Laurent Gaffié as MS09-050 as confirmed bulletin (Technet). It is possible to read the advisory at technet.microsoft.com. The identification of this vulnerability is CVE-2009-3103 since 09/08/2009. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details are unknown but a public exploit is available.
A public exploit has been developed by laurent gaffie in Python and been published before and not just after the advisory. The exploit is available at securityfocus.com. It is declared as highly functional. The vulnerability was handled as a non-public zero-day exploit for at least 1 days. During that time the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 40887 (MS09-050: Microsoft Windows SMB2 _Smb2ValidateProviderCallback() Vulnerability (975497) (uncredentialed check)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Windows and running in the context r. The commercial vulnerability scanner Qualys is able to test this issue with plugin 90527 (Microsoft Server Message Block (SMBv2) Remote Code Execution Vulnerability (MS09-050) and Shadow Brokers (EDUCATEDSCHOLAR)).
Upgrading eliminates this vulnerability. Applying the patch MS09-050 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 2 months after the disclosure of the vulnerability. Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 11792.
The vulnerability is also documented in the databases at X-Force (53090), Tenable (40887) and Exploit-DB (9594). Entries connected to this vulnerability are available at 50449 and 50445.
Product
Type
Vendor
Name
Version
License
Support
- end of life (old version)
CPE 2.3
CPE 2.2
Video
CVSSv3
VulDB Meta Base Score: 7.3VulDB Meta Temp Score: 7.0
VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv2
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| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
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Exploiting
Name: EducatedScholarClass: Resource management / EducatedScholar
CWE: CWE-399 / CWE-404
ATT&CK: Unknown
Local: No
Remote: Yes
Availability: 🔍
Access: Public
Status: Highly functional
Author: laurent gaffie
Programming Language: 🔍
Download: 🔍
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
| 0-Day | unlock | unlock | unlock | unlock |
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| Today | unlock | unlock | unlock | unlock |
Nessus ID: 40887
Nessus Name: MS09-050: Microsoft Windows SMB2 _Smb2ValidateProviderCallback() Vulnerability (975497) (uncredentialed check)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
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OpenVAS ID: 100283
OpenVAS Name: Microsoft Windows SMB2 _Smb2ValidateProviderCallback() Remote Code Execution Vulnerability
OpenVAS File: 🔍
OpenVAS Family: 🔍
Saint ID: exploit_info/windows_smb2
Saint Name: Windows SMB2 buffer overflow
Qualys ID: 🔍
Qualys Name: 🔍
MetaSploit ID: ms09_050_smb2_negotiate_pidhigh.rb
MetaSploit Name: Microsoft SRV2.SYS SMB Negotiate ProcessID Function Table Dereference
MetaSploit File: 🔍
Exploit-DB: 🔍
Threat Intelligence
Interest: 🔍Active Actors: 🔍
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Countermeasures
Recommended: UpgradeStatus: 🔍
Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍
Patch: MS09-050
Suricata ID: 2012063
Suricata Class: 🔍
Suricata Message: 🔍
TippingPoint: 🔍
McAfee IPS: 🔍
McAfee IPS Version: 🔍
ISS Proventia IPS: 🔍
PaloAlto IPS: 🔍
Fortigate IPS: 🔍
Timeline
09/07/2009 🔍09/07/2009 🔍
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09/21/2009 🔍
10/13/2009 🔍
03/17/2021 🔍
Sources
Vendor: microsoft.comProduct: microsoft.com
Advisory: MS09-050
Researcher: Laurent Gaffié
Status: Confirmed
Confirmation: 🔍
CVE: CVE-2009-3103 (🔍)
OVAL: 🔍
X-Force: 53090 - Microsoft Windows srv2.sys code execution, High Risk
SecurityTracker: 1022848 - Windows Server Message Block NEGOTIATE PROTOCOL REQUEST Processing Flaw Lets Remote Users Execute Arbitrary Code
Vulnerability Center: 23449 - [MS09-050] Microsoft Windows Server 2008 and Windows Vista SMB2 Remote Code Execution Vulnerability, Critical
SecurityFocus: 36299 - Microsoft Windows SMB2 '_Smb2ValidateProviderCallback()' Remote Code Execution Vulnerability
Secunia: 36623 - Microsoft Windows SMBv2 Multiple Vulnerabilities, Moderately Critical
OSVDB: 57799 - Microsoft Windows srv2.sys Kernel Driver SMB2 Malformed NEGOTIATE PROTOCOL REQUEST Remote DoS
scip Labs: https://www.scip.ch/en/?labs.20140213
See also: 🔍
Entry
Created: 09/21/2009 04:13 PMUpdated: 03/17/2021 01:32 PM
Changes: 09/21/2009 04:13 PM (111), 07/14/2017 10:00 AM (18), 03/17/2021 01:30 PM (3), 03/17/2021 01:32 PM (1)
Complete: 🔍
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