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Category:   Application (Security)  >   Microsoft Internet Security and Acceleration Server Vendors:   Microsoft
Microsoft Internet Security and Acceleration Server Bugs Let Remote Users Poison the Cache and Establish NetBIOS Connections
SecurityTracker Alert ID:  1014193
SecurityTracker URL:  http://securitytracker.com/id/1014193
CVE Reference:   CVE-2005-1215, CVE-2005-1216   (Links to External Site)
Updated:  Aug 12 2008
Original Entry Date:  Jun 14 2005
Impact:   Modification of system information, Modification of user information, User access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 2000 SP2
Description:   Two vulnerabilities were reported in the Microsoft Internet Security and Acceleration (ISA) Server. A remote user can poison the cache. A remote user can also establish a NetBIOS connection to the ISA Server.

The server does not properly process HTTP content headers. A remote user can submit a specially crafted HTTP request to poison the cache of the affected ISA server [CVE: CVE-2005-1215]. As a result, the remote user can access content that would otherwise have been restricted by the server or to cause a target user to be directed to unexpected content.

A remote user can exploit a flaw in the NetBIOS (all) predefined packet filter to establish a NetBIOS connection to the target ISA Server [CVE: CVE-2005-1216].

The vendor credits Steve Orrin of Watchfire with reporting the HTTP content header vulnerability.

Impact:   A remote user can poison the cache of the affected ISA server.

A remote user can establish a NetBIOS connection to services on the target ISA Server that use NetBIOS.

Solution:   The vendor has issued the following fix:

Microsoft Internet Security and Acceleration (ISA) Server 2000 Service Pack 2:

http://www.microsoft.com/downloads/details.aspx?FamilyId=E579813B-0372-45BE-8070-3F4D7D4CB89C

A restart is not required.

Vendor URL:  www.microsoft.com/technet/security/Bulletin/MS05-034.mspx (Links to External Site)
Cause:   Access control error, Input validation error
Underlying OS:  Windows (2000)

Message History:   This archive entry has one or more follow-up message(s) listed below.
Jun 14 2005 (Small Business Server is Affected) Microsoft Internet Security and Acceleration Server Bugs Let Remote Users Poison the Cache and Establish NetBIOS Connections
Microsoft Small Business Server is affected by this vulnerability. Customers should apply the ISA Server fix.



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