On 04/03/2020 20:20, Robert Hicks wrote:
> We are getting the following over and over in our catalina.out file:
>
> java.lang.IllegalArgumentException: Invalid character found in the request
> target. The valid characters are defined in RFC 7230 and RFC 3986
Do you know what URIs are triggering those?
We recently improved the HTTP header logging to report invalid
characters in %nn form. We could add that to this exception message so
you have some chance of figuring out what the issue is.
> Our server.xml has the following copied from an online search I think:
>
> relaxedQueryChars="[]|{}^\`"<>"
That is all of the allowed characters.
It is an attribute value so you'll need to encode at least " and <. Wjat
you have above is fine.
> I found something else that said the following might also help in
> catalina.properties:
>
> org.apache.tomcat.util.buf.UDecoder.ALLOW_ENCODED_SLASH=true
I'd be very careful using that.
Mark
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