Directory traversal vulnerability in IBM Tivoli WebSEAL Policy Director 3.01 through 3.7.1 allows remote attackers to read arbitrary files or directories via encoded .. (dot dot) sequences containing "%2e" strings.
https://exchange.xforce.ibmcloud.com/vulnerabilities/6884
http://www.securityfocus.com/bid/3080
http://www-1.ibm.com/support/search.wss?rs=0&q=IY18152&apar=only
http://archives.neohapsis.com/archives/bugtraq/2001-07/0497.html