Vulnerability in SMB Could Allow Remote Code Execution
Description: This security update resolves a publicly disclosed vulnerability in Microsoft Server Message Block (SMB) Protocol. The vulnerability could allow remote code execution on affected systems. An attacker who successfully exploited this vulnerability could install programs; view, change, or delete data; or create new accounts with full user rights. Users whose accounts are configured to have fewer user rights on the system could be less impacted than users who operate with administrative user rights. The security update addresses the vulnerability by modifying the way that SMB authentication replies are validated to prevent the replay of credentials.
Update type: Moderate
Release date: November 13, 2008
Applies to: All
Knowledge base: http://support.microsoft.com/kb/957097
Comments: Here are the specifics on the vulnerabilities covered by this update:
- SMB Credential Reflection Vulnerability – CVE-2008-4037
For more information on this issue, including potential causes, workarounds, and resolutions, see: Microsoft KB Article KB957097.