PHP 3.x (PHP3) on Apache 1.3.6 allows remote attackers to read arbitrary files via a modified .. (dot dot) attack containing "%5c" (encoded backslash) sequences.Referenceshttp://www.securityfocus.com/archive/1/149210https://exchange.xforce.ibmcloud.com/vulnerabilities/5659http://www.securityfocus.com/bid/2060