Apache 2.2.2, when running on Windows, allows remote attackers to read source code of CGI programs via a request that contains uppercase (or alternate case) characters that bypass the case-sensitive ScriptAlias directive, but allow access to the file on case-insensitive file systems.
https://exchange.xforce.ibmcloud.com/vulnerabilities/28357
http://www.vupen.com/english/advisories/2006/3265
http://www.securityfocus.com/archive/1/443487/100/200/threaded
http://www.securityfocus.com/archive/1/442882/100/0/threaded