CVE-2013-0262: Improper Limitation of a Pathname to a Restricted Directory

rack/file.rb Rack::File in Rack 1.5.x before 1.5.2 and 1.4.x before 1.4.5 allows attackers to access arbitrary files outside the intended root directory via a crafted PATHINFO environment variable, probably a directory traversal vulnerability that is remotely exploitable, aka "symlink path...