Monday, November 29, 2010

Re: Forms security: Not displaying input means it is protected? --zivi-muh

Thanks, guys!

On Fri, Nov 26, 2010 at 4:44 PM, euromark <dereuromark@googlemail.com> wrote:
> some additional infos:
> http://www.dereuromark.de/2010/10/05/cakephp-security/
>
> On 26 Nov., 14:32, odd <zakmccrac...@web.de> wrote:
>> That's how it is. Personally i'm additionally using the fieldList
>> feature (which unfortunately doesn't work well with multiple models
>> and saveAll) as a last line of defense in case something goes wrong
>> and a modified request slips through.
>>
>> Regards
>>
>> Joshua Muheim schrieb:
>>
>>
>>
>>
>>
>>
>>
>> > Thanks for the hint to the $whitelist, Stephen. But this seems not
>> > necessary to me anymore when using the Security component (which I do
>> > and I forgot to mention in my first post). Look at this
>> > (http://book.cakephp.org/view/175/Security-Component):
>>
>> > "When using the Security Component you must use the FormHelper to
>> > create your forms. The Security Component looks for certain indicators
>> > that are created and managed by the FormHelper (especially those
>> > created in create() and end()). Dynamically altering the fields that
>> > are submitted in a POST request (e.g. disabling, deleting or creating
>> > new fields via JavaScript) is likely to trigger a black-holing of the
>> > request. See the $validatePost or $disabledFields configuration
>> > parameters."
>>
>> > So if you're using Security component, the end user can't mess with
>> > the POST data anymore. :-)
>>
>> > Any other comment about this, anyone?
>>
>> > On Fri, Nov 26, 2010 at 12:08 PM, Stephen
>> > <step...@ninjacodermonkey.co.uk> wrote:
>> > > Hi There
>>
>> > > You should use a whitelist to specify the fields to save, any other fields
>> > > will not be saved.
>>
>> > > Even if you don't display the field on the page, a user can still create the
>> > > post variable from within their browser and use it to change data they
>> > > shouldn't really be allowed to.
>>
>> > > Hope this helps
>>
>> > > Stephen
>>
>> > > On 26 November 2010 10:38, psybear83 <psybea...@gmail.com> wrote:
>>
>> > >> Hey everybody
>>
>> > >> In my application, users can edit their email, phone number etc., but
>> > >> they are *not* allowed to edit their username - only admins are
>> > >> allowed to do that.
>>
>> > >> So I'm wondering: is it safe to simply not display the username field
>> > >> to the user? Afaik CakePHP makes sure that the form hasn't been
>> > >> manually edited (e.g. adding a username input field), right? So I
>> > >> don't have to double-check on the application's side, e.g. by
>> > >> unsetting the $data[User][username] field, as long as I'm only
>> > >> displaying form fields using CakePHP's form helper (and not
>> > >> "deactivating" them by just hiding them using CSS or so), right?
>>
>> > >> If so - yeah, sweet! Thanks, CakePHP! :-)
>>
>> > >> Waiting for your confirmation about this fact, guys... Thanks!
>>
>> > >> Check out the new CakePHP Questions sitehttp://cakeqs.organd help others
>> > >> with their CakePHP related questions.
>>
>> > >> You received this message because you are subscribed to the Google Groups
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>> > >> To post to this group, send email to cake-php@googlegroups.com
>> > >> To unsubscribe from this group, send email to
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>> > >> athttp://groups.google.com/group/cake-php?hl=en
>>
>> > > --
>> > > Kind Regards
>> > >  Stephen @ NinjaCoderMonkey
>>
>> > >  www.ninjacodermonkey.co.uk
>>
>> > > Check out the new CakePHP Questions sitehttp://cakeqs.organd help others
>> > > with their CakePHP related questions.
>>
>> > > You received this message because you are subscribed to the Google Groups
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>
> Check out the new CakePHP Questions site http://cakeqs.org and help others with their CakePHP related questions.
>
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