Intrusion Prevention

Apache.httpd.mod_proxy_ajp.DoS

Description

This indicates an attack attempt to exploit a Denial of Service vulnerability in Apache HTTP Server.
The vulnerability results from an error when the vulnerable software handles non-HTTP request types. A remote attacker may exploit this to block other legitimate requests on the server.

Affected Products

Apache Software Foundation HTTP Server 2.2.12 - 2.2.20

Impact

Denial of Service: Remote attackers can crash vulnerable systems.

Recommended Actions

Upgrade to the latest version available from the website.
http://httpd.apache.org/security/vulnerabilities_22.html#2.2.21

CVE References

CVE-2011-3348