[NT] Microsoft ISA Server 2000 DoS
SecuriTeam <[email protected]>
| Newsgroups | gmane.comp.security.securiteam |
|---|---|
| Message-ID | <[email protected]> |
The following security advisory is sent to the securiteam mailing list, and can be found at the SecuriTeam web site: http://www.securiteam.com - - promotion The SecuriTeam alerts list - Free, Accurate, Independent. Get your security news from a reliable source. http://www.securiteam.com/mailinglist.html - - - - - - - - - Microsoft ISA Server 2000 DoS ------------------------------------------------------------------------ SUMMARY " <http://www.microsoft.com/isaserver/default.mspx> Microsoft Internet Security and Acceleration (ISA) Server is the advanced stateful packet and application-layer inspection firewall, virtual private network (VPN), and Web cache solution that enables enterprise customers to easily maximize existing information technology (IT) investments by improving network security and performance." Microsoft Internet Security and Acceleration Server's Firewall crashes when heavy network traffic is received from a SecureNAT client. DETAILS Vulnerable Systems: * SA Server 2000 and ISA Server 2000 Service Pack 2 (SP2) Wspsrv.exe version 3.0.1200.411 and prior Workaround: Limit the size of traffic being handled by the ISA server for each SecureNAT client contacting it. Disclosure Timeline: 01-06-2005 - Vulnerability researched 02-06-2005 - Security companies and several CERT units contacted, advisory published, link to advisory sent to security companies and several CERT units ADDITIONAL INFORMATION The information has been provided by <mailto:[email protected]> Juha-Matti Laurio . The original article can be found at: <http://www.networksecurity.fi/advisories/windows-isa-firewall.html> http://www.networksecurity.fi/advisories/windows-isa-firewall.html The vendor advisory can be found at : <http://support.microsoft.com/kb/894864/EN-US/> http://support.microsoft.com/kb/894864/EN-US/ ======================================== This bulletin is sent to members of the SecuriTeam mailing list. To unsubscribe from the list, send mail with an empty subject line and body to: [email protected] In order to subscribe to the mailing list, simply forward this email to: [email protected] ==================== ==================== DISCLAIMER: The information in this bulletin is provided "AS IS" without warranty of any kind. In no event shall we be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages.