Greg, You just described my problem to the letter. This is the issue that is impacting me currently. The only way we have successfully blocked this is to add an object to every customer folder that represents every other customer. We have been trying to make a folder-ish object with Acquisition.Implicit but so far have had no success. Besides adding a customer# object for every customer to every customer can anyone tell me how I can block this from happening?? Jay -----Original Message----- From: Greg Fischer [mailto:retheoff@gmail.com] Sent: Thursday, March 03, 2005 3:36 AM To: zope@zope.org Subject: Re: [Zope] Re: Blocking Sibling inheritance Security issue? I think you are partially right about it not being a security issue because Zope does what it is supposed to do and look where it should. Here is a security issue relating to this acquisition: (IMHO) I have folder 1: /site/dev/customer1/folder/page And folder 1: /site/dev/customer2/folder1/folder2/page Eash customer level folder has acl_users with different/separate accounts. The security at the customer level folder is set to not acquire and no anonymous access. Now here is the problem I see, you type in your URL: someplace.com/site/dev/customer1/folder/page You are asked to authenticate. Then you change your url after authentication to: somplace.com/site/dev/customer1/folder/customer2/folder1/folder1/page And you get right in with no authentication! That should not be allowable. I understand that this would require someone to know the folder structures, but really, in a more simplistic example, all you would need to know is the other client folder name, and you would have access. So what can we do about this? If you dont have acl-users account in a folder you access, you should NOT be able to see the contents. Right? This may be a new subject, I dont mean to stray off topic. On Thu, 3 Mar 2005 01:20:32 -0700, kosh <kosh@aesaeion.com> wrote:
On Thursday 03 March 2005 1:06 am, Dario Lopez-Kästen wrote:
Tres Seaver wrote:
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1
Jay Zeemer wrote: | Greetings all, | I am in the process of examining Zope for some possible applications. | Currently I am having an issue with Zope being a bit to smart. I have | a directory \Dir1\ and under it I have 2 subdirectories \Dir1\SubA\ and | \Dir1\SubB\. The problem I am having is I can go to \Dir1\SubA\SubB\ | and gain access to things that are in \Dir1\SubB\, I need to be able to | block sibling level inheritance. Is this possible in Zope?? Or are | there any other ways to block this with out creating a SubB object in
\Dir1\SubA\ ??
The "sibling inheritance" you are describing is Zope's "acquisition". Folders derive from Acquisition.Implicit, which means they are willing to acquire any "non-private" name from their parents.
To prevent this behavior, place SubA with a Folder-like object which derives instead from Acquisition.Explicit.
I'd need this too. Would I be making a correct assumption when stating that no such folderish product, such as a "aq-blocking Folder", exists yet, but it has to be written (ie by me or anyonelse needing this functionality)?
Thanks.
I don't know of something like this existing and even more I don't know why you would really want it. Eventually you will understand how and why acquisition works and then you would have a fair bit of work to do to change the stuff back. Zope is not publishing any object that the person viewing the site would not normally have access to so it is not security issue.
What you probably need to do is read the zope book and read about how acquisition works. You can use it to make apps a lot faster and save yourself a lot of work by learning how to use it. Acquisition is a major reason that I use zope in the first place and have been using it for about 4 years now. _______________________________________________ Zope maillist - Zope@zope.org http://mail.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope-dev )
-- Greg Fischer 1st Byte Solutions http://www.1stbyte.com _______________________________________________ Zope maillist - Zope@zope.org http://mail.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope-dev )