the question is, should we be escaping them with the backslash or with
the url-coding?

-igor

On Thu, Dec 1, 2011 at 9:48 AM, Martin Grigorov <[email protected]> wrote:
> The commit message doesn't say it, but yes this is the fix for this
> security problem.
> There is a way to attack the application with the URL encoded version.
>
> On Thu, Dec 1, 2011 at 6:05 PM, Igor Vaynberg <[email protected]> wrote:
>> this was done in r1150391 by martin for
>> http://wicket.apache.org/2011/08/23/cve-2011-2712.html
>>
>> -igor
>>
>> On Thu, Dec 1, 2011 at 8:45 AM, Gereon Steffens
>> <[email protected]> wrote:
>>> Hi,
>>>
>>> I've noticed a change in Wicket 1.4.19 regarding URL parameter encoding.
>>> If a parameter value contains a single quote, these quotes are now
>>> preceeded by a backslash (this happens in RequestCycle#encodeUrlFor).
>>>
>>> Why is this done? I've never heard of backslash-escaping in relation to
>>> URLs.
>>>
>>> As far as I can tell, this also breaks compatibility with apps/sites that
>>> now need additional code to parse parameters like
>>> example.com?param=a'b which is now represented as param=a\'b. Even if the
>>> backslash were necessary in a URL, it should be URL-escaped as %5c.
>>>
>>> Am I missing something?
>>>
>>> Regards
>>> Gereon
>>>
>>>
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>
>
>
> --
> Martin Grigorov
> jWeekend
> Training, Consulting, Development
> http://jWeekend.com
>
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