Content
(MS06-040) Microsoft Windows Server Service Buffer Overflow (KB921883)
- Type
- Buffer Overflow
- Impact of exploitation
- Remote Code Execution
- User Interaction
- no user interaction is needed
- Attack Vector
- Malicious remote network traffic
- Rating
- Critical
- CVE reference
- CVE-2006-3439,
- Vendor Status
- Responded and patched
- Vulnerable systems
- Windows 2000 SP4,
- Windows 2000 Generic,
- Windows XP SP0 - SP2,
- Windows XP Generic,
- Windows 2003 Generic,
- Windows 2003 SP0 - SP1,
- Summary
- A vulnerability exists in the Microsoft Windows Server Service that may allow for arbitrary code execution. This can successfully be exploited by sending malicious traffic to the server service.
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Description
The Microsoft Server Service allows for file sharing between other networked hosts. A vulnerability is present in the Server Service that may allow for code execution due to improper bounds checking. The flaw may be exploited by receiving and processing specially crafted server service traffic to the vulnerable host. This attack is available to unauthenticated attackers.
McAfee Product Mitigation & Recommendations
Recommendations
Download and install the patch available from Microsoft (KB921883): http://www.microsoft.com/technet/security/bulletin/MS06-040.mspx
McAfee Product Mitigation
McAfee Foundstone
This Foundstone vulnerability check can be used to assess if your systems are vulnerable and is expected to accurately identify if a system is vulnerable in many enterprise environments.
- Signature:
- (MS06-040) Microsoft Windows Server Service Buffer Overflow (KB921883)
- Signature identifier:
- 4512
- Release date:
- 8/8/2006
- First released in:
McAfee Foundstone
This Foundstone vulnerability check can be used to assess if your systems are vulnerable and is expected to accurately identify if a system is vulnerable in many enterprise environments.
- Signature:
- (MS06-040) Microsoft Windows Server Service Vulnerability No Credentials Requred (KB921883)
- Signature identifier:
- 4522
- Release date:
- 8/7/2006
- First released in:
McAfee Intrushield
McAfee Intrushield is proactively protecting customers against all known exploits of this buffer overflow vulnerability. McAfee Avert Labs will continue to update our coverage, as needed, as new exploit vectors are discovered and as new threats emerge.
- Signature:
- DCERPC SRVSVC Buffer Overflow
- Signature identifier:
- 0x47602E00
- Release date:
- 8/8/2006
- First released in:
- sigset(s) 3.1.19, 2.1.46, 1.9.63, 1.8.80
McAfee Host IPS
McAfee Host IPS is proactively protecting customers against all known exploits of this buffer overflow vulnerability. McAfee Avert Labs will continue to update our coverage, as needed, as new exploit vectors are discovered and as new threats emerge.
- Signature:
- Windows Server Service Buffer Overflow Vulnerability
- Signature identifier:
- 3766
- Release date:
- 9/12/2006
- First released in:
- Security content update 610
McAfee Host IPS
McAfee Host IPS is proactively protecting customers against all known exploits of this buffer overflow vulnerability. McAfee Avert Labs will continue to update our coverage, as needed, as new exploit vectors are discovered and as new threats emerge.
- Signature:
- Windows Server Service Buffer Overflow Vulnerability
- Signature identifier:
- 3767
- Release date:
- 9/12/2006
- First released in:
- Security content update 610
McAfee Host IPS
McAfee Host IPS is proactively protecting customers against all known exploits of this buffer overflow vulnerability. McAfee Avert Labs will continue to update our coverage, as needed, as new exploit vectors are discovered and as new threats emerge.
- Signature:
- Illegal execution in services.exe
- Signature identifier:
- 3764
- Release date:
- 8/14/2006
- First released in:
- security content update 567
McAfee Host IPS
McAfee Host IPS is proactively protecting customers against all known exploits of this buffer overflow vulnerability. McAfee Avert Labs will continue to update our coverage, as needed, as new exploit vectors are discovered and as new threats emerge.
- Signature:
- Illegal execution in svchost.exe
- Signature identifier:
- 3765
- Release date:
- 8/14/2006
- First released in:
- Security content update 567
McAfee Anti-Virus protection
The following A-V signature detects malware that is know to exploit this vulnerability
- Signature:
- IRC-Mocbot!MS06-040
- Release date:
- 8/13/2006
- First released in:
- DAT 4828
Additional Resources
Microsoft Security Bulletin: Vulnerability in Server Service Could Allow Remote Code Execution (921883)
http://www.microsoft.com/technet/security/bulletin/MS06-040.mspx
Microsoft Windows Server service buffer overflow
http://www.kb.cert.org/vuls/id/650769
Programs that request lots of contiguous memory may fail after you install security update 921883 (MS06-040) on a Windows Server 2003 Service Pack 1-based computer
All Information
Timeline -
9/13/2006
An exploit for Windows 2003 has been released
9/12/2006
Vendor has re-released the patch to remediate a known non-security related issue
8/27/2006
A third exploit similar to the exploit of August 10 has been released.
8/19/2006
A second exploit similar to the exploit of August 10 has been released.
8/15/2006
Vendor has provided patch caveat information
8/12/2006
Active exploitation has been found in the wild
8/10/2006
Exploit code has been released.
8/8/2006
Vendor has provided a patch.
8/8/2006
Vulnerability information has been publicly disclosed.
8/8/2006
Microsoft has stated that this has been exploited in the wild, but code is not public
Description -
The Microsoft Server Service allows for file sharing between other networked hosts. A vulnerability is present in the Server Service that may allow for code execution due to improper bounds checking. The flaw may be exploited by receiving and processing specially crafted server service traffic to the vulnerable host. This attack is available to unauthenticated attackers.
McAfee Product Mitigation & Recommendations
Recommendations -
Download and install the patch available from Microsoft (KB921883): http://www.microsoft.com/technet/security/bulletin/MS06-040.mspx
McAfee Product Mitigation
McAfee Foundstone
This Foundstone vulnerability check can be used to assess if your systems are vulnerable and is expected to accurately identify if a system is vulnerable in many enterprise environments.
- Signature:
- (MS06-040) Microsoft Windows Server Service Buffer Overflow (KB921883)
- Signature identifier:
- 4512
- Release date:
- 8/8/2006
- First released in:
McAfee Foundstone
This Foundstone vulnerability check can be used to assess if your systems are vulnerable and is expected to accurately identify if a system is vulnerable in many enterprise environments.
- Signature:
- (MS06-040) Microsoft Windows Server Service Vulnerability No Credentials Requred (KB921883)
- Signature identifier:
- 4522
- Release date:
- 8/7/2006
- First released in:
McAfee Intrushield
McAfee Intrushield is proactively protecting customers against all known exploits of this buffer overflow vulnerability. McAfee Avert Labs will continue to update our coverage, as needed, as new exploit vectors are discovered and as new threats emerge.
- Signature:
- DCERPC SRVSVC Buffer Overflow
- Signature identifier:
- 0x47602E00
- Release date:
- 8/8/2006
- First released in:
- sigset(s) 3.1.19, 2.1.46, 1.9.63, 1.8.80
McAfee Host IPS
McAfee Host IPS is proactively protecting customers against all known exploits of this buffer overflow vulnerability. McAfee Avert Labs will continue to update our coverage, as needed, as new exploit vectors are discovered and as new threats emerge.
- Signature:
- Windows Server Service Buffer Overflow Vulnerability
- Signature identifier:
- 3766
- Release date:
- 9/12/2006
- First released in:
- Security content update 610
McAfee Host IPS
McAfee Host IPS is proactively protecting customers against all known exploits of this buffer overflow vulnerability. McAfee Avert Labs will continue to update our coverage, as needed, as new exploit vectors are discovered and as new threats emerge.
- Signature:
- Windows Server Service Buffer Overflow Vulnerability
- Signature identifier:
- 3767
- Release date:
- 9/12/2006
- First released in:
- Security content update 610
McAfee Host IPS
McAfee Host IPS is proactively protecting customers against all known exploits of this buffer overflow vulnerability. McAfee Avert Labs will continue to update our coverage, as needed, as new exploit vectors are discovered and as new threats emerge.
- Signature:
- Illegal execution in services.exe
- Signature identifier:
- 3764
- Release date:
- 8/14/2006
- First released in:
- security content update 567
McAfee Host IPS
McAfee Host IPS is proactively protecting customers against all known exploits of this buffer overflow vulnerability. McAfee Avert Labs will continue to update our coverage, as needed, as new exploit vectors are discovered and as new threats emerge.
- Signature:
- Illegal execution in svchost.exe
- Signature identifier:
- 3765
- Release date:
- 8/14/2006
- First released in:
- Security content update 567
McAfee Anti-Virus protection
The following A-V signature detects malware that is know to exploit this vulnerability
- Signature:
- IRC-Mocbot!MS06-040
- Release date:
- 8/13/2006
- First released in:
- DAT 4828
Additional Resources
Additional Resources -
Microsoft Security Bulletin: Vulnerability in Server Service Could Allow Remote Code Execution (921883)
http://www.microsoft.com/technet/security/bulletin/MS06-040.mspx
Microsoft Windows Server service buffer overflow
http://www.kb.cert.org/vuls/id/650769
