Intrusion Prevention

Apache.HTTP.Server.mod.headers.Security.Bypass

Description

This indicates an attack attempt to exploit a Security Bypass vulnerability in Apache HTTP Server.
The vulnerability is due to improper validation of user supplied data when vulnerable module handles a maliciously crafted HTTP request. A remote attacker may be able to exploit this to bypass defined rules on vulnerable web server via an HTTP request.

Affected Products

Apache Software Foundation HTTP Server 2.4.1-2.4.10
Apache Software Foundation HTTP Server 2.2.0-2.2.27

Impact

Security Bypass: Remote attackers can bypass security checks of vulnerable systems.

Recommended Actions

Apply the most recent upgrade or patch from the vendor.
http://httpd.apache.org/security/vulnerabilities_22.html
http://httpd.apache.org/security/vulnerabilities_24.html

CVE References

CVE-2013-5704