Attack Mitigator IPS 5500 HTTP denial of service
| am-ips5500-http-dos (17125) |  Medium Risk |
Description:
Top Layer's Attack Mitigator is vulnerable to a denial of service attack in certain configurations, caused by improper handling of a large number of HTTP connections. A remote attacker could exploit this vulnerability by establishing over 2000 HTTP connections to cause the CPU to consume all available system resources.
Note: This vulnerability is exploitable only when the Attack Mitigator IPS 5500 is configured in a network where a high volume of packets pass through the Attack Mitigator IPS 5500 twice, usually in a "onearmed" routing configuration.
Consequences:
Denial of Service
Remedy:
Upgrade to the latest version of Attack Mitigator IPS 5500 software (3.11.014 or later), available from the Top Layer Web site. See references.
References:
- BugTraq Mailing List, Wed Aug 25 2004 - 11:09:05 CDT : IRM 010: Top Layer Attack Mitigator IPS 5500 Denial of Service.
- Top Layer Web site: Stop DDoS Attack - SYN Flood Attack Protection.
- BID-11049: Top Layer Attack Mitigator IPS 5500 Denial Of Service Vulnerability
- CVE-2004-1749: Attack Mitigator IPS 5500 3.11.008, and possibly other versions, when configured in a one-armed routing configuration, allows remote attackers to cause a denial of service (CPU consumption) via a large number of HTTP requests.
- SA12390: Top Layer Attack Mitigator IPS 5500 Multiple HTTP Requests Denial of Service
Platforms Affected:
- Top Layer Attack Mitigator IPS 5500 3.11.008 and prior
Reported:
Aug 25, 2004
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