Allaire JRun 2.3.3, 3.0 and 3.1 running on IIS 4.0 and 5.0, iPlanet, Apache, JRun web server (JWS), and possibly other web servers allows remote attackers to read arbitrary files and directories by appending (1) "%3f.jsp", (2) "?.jsp" or (3) "?" to the requested URL.
https://euvd.enisa.europa.eu/vulnerability/EUVD-2001-1487
http://www.securityfocus.com/bid/3592
http://www.securityfocus.com/archive/1/243636
http://www.macromedia.com/v1/handlers/index.cfm?ID=22262&Method=Full
http://www.iss.net/security_center/static/7623.php
http://online.securityfocus.com/archive/1/243203
http://online.securityfocus.com/archive/1/242843/2002-07-27/2002-08-02/2