dev@glassfish.java.net

Re: REST API and slashes in resource names

From: Ludovic Champenois <ludovic.champenois_at_oracle.com>
Date: Thu, 27 May 2010 14:16:17 -0700

Yes, tried that for 3.0 and did not work.
For now, I think iirc we code/ in gf resouces with __
not sure, just navigate to a jdc resource via HTML access...
Ludo

On May 27, 2010, at 2:02 PM, Jason Lee <jason.d.lee_at_oracle.com> wrote:

> OK. While that may solve that issue, it's caused another. When I request a URL like the one below, I get a stack trace like this:
>
> Internal Server error: /management/domain/resources/admin-object-resource/jndi%2Ffoo
> java.io.CharConversionException: noSlash
> at com.sun.grizzly.util.buf.UDecoder.convert(UDecoder.java:152)
> at com.sun.grizzly.util.buf.UDecoder.convert(UDecoder.java:257)
> at com.sun.grizzly.util.buf.UDecoder.convert(UDecoder.java:235)
> at com.sun.grizzly.util.http.HttpRequestURIDecoder.decode(HttpRequestURIDecoder.java:80)
> at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:194)
> at com.sun.grizzly.http.ProcessorTask.invokeAdapter(ProcessorTask.java:803)
> at com.sun.grizzly.http.ProcessorTask.doProcess(ProcessorTask.java:706)
> at com.sun.grizzly.http.ProcessorTask.process(ProcessorTask.java:987)
> at com.sun.grizzly.http.DefaultProtocolFilter.execute(DefaultProtocolFilter.java:178)
> at com.sun.grizzly.DefaultProtocolChain.executeProtocolFilter(DefaultProtocolChain.java:135)
> at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:102)
> at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:88)
> at com.sun.grizzly.http.HttpProtocolChain.execute(HttpProtocolChain.java:76)
> at com.sun.grizzly.ProtocolChainContextTask.doCall(ProtocolChainContextTask.java:53)
> at com.sun.grizzly.SelectionKeyContextTask.call(SelectionKeyContextTask.java:57)
> at com.sun.grizzly.ContextTask.run(ContextTask.java:69)
> at com.sun.grizzly.util.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:526)
> at com.sun.grizzly.util.AbstractThreadPool$Worker.run(AbstractThreadPool.java:507)
> at java.lang.Thread.run(Thread.java:637)
>
> Grizzly has a config option, com.sun.grizzly.util.buf.UDecoder.ALLOW_ENCODED_SLASH, false by default, that controls whether or not to allow a slash to be encoded. This change, I'm told, was ported to Grizzly from Tomcat (http://tomcat.apache.org/security-6.html):
> Tomcat permits '\', '%2F' and '%5C' as path delimiters. When Tomcat is used behind a proxy (including, but not limited to, Apache HTTP server with mod_proxy and mod_jk) configured to only proxy some contexts, a HTTP request containing strings like "/\../" may allow attackers to work around the context restriction of the proxy, and access the non-proxied contexts.
> It seems, then, that allowing this type of encoding may pose security issues. Without it, however, it doesn't seem I can correctly (i.e., RESTfully) identify certain types of resources.
>
> Thoughts?
>
> On 5/27/10 3:07 PM, Jason Lee wrote:
>>
>> On 5/27/10 2:55 PM, Tim Quinn wrote:
>>> If the resource name contains a slash, then would it work to encode the slash in the path?
>>>
>>> http://localhost:4848/management/domain/resources/admin-object-resource/jndi%2Ffoo
>>>
>>> Just a thought.
>> Tom, Tim, great point. One I should have seen. :) Thanks! :P
>>
>
>
> --
> Jason Lee
> Senior Member of Technical Staff
> GlassFish Administration Console
>
> Oracle Corporation
> Phone x31197/+1 405-343-1964
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