Top Layer Attack Mitigator IPS 5500 contains a flaw that may allow a remote denial of service. The issue is triggered when a remote attacker establishes roughly 2000 concurrent connections to the device, and will result in loss of availability for the platform. This will cause all connectivity to devices behind the Mitigator to be unreachable.

Upgrade to version 3.11.014 or higher, as it has been reported to fix this vulnerability. An upgrade is required as there are no known workarounds.

• Security Tracker: 1011068
• Secunia Advisory ID: 12390
• CVE ID: 2004-1749 (see also: NVD)
• Mail List Post: http://archives.neohapsis.com/archives/bugtraq/2004-08/0339.html
• Other Advisory URL: http://www.irmplc.com/index.php/121-Advisory-010
• Vendor URL: http://www.toplayer.com/
• Keyword: IRM Security Advisory No. 010

• Mazin Faour - advisoriesirmplc.com - Information Risk Management Plc.
• Louis Garman - advisoriesirmplc.com - Information Risk Management Plc.