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From "David Cassidy" <>
Subject single percent sign in a parameter causes an exception report detailing tomcat version
Date Fri, 16 Apr 2004 10:09:42 GMT

We've had a pen test done on one of the apps we look after and they an issue which I'd
like a little guidance on ...

(Accept that these guys are specifically sending iffy requests to cause the system to break
or detail
what versions of the code is being used to provide ways of hacking in ..)

If you have a page that does
and you specify


The result is an exception report that details what version of tomcat you are running
(I've tried this with 4.1.29 and it does make a wonderful exception report!)

Anyone seen this before ?
Anyone got a fix ?




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