[CKAN-Security] Auth_tkt Cookie Spoofing

Ian Ward ian at excess.org
Thu Aug 1 14:00:37 UTC 2019


Thank you for keeping on us about this Shubham,

What do you see as an appropriate fix? Should we be recording the log
out on the server side and verifying the cookies against the database
on every page view? Would enforcing a time limit on cookies be good
enough instead?

Ian

On Mon, Jul 22, 2019 at 5:00 AM Shubham Mahajan
<mr.shubhammahajan at gmail.com> wrote:
>
> Hi Team
>
> I am really looking forward to an update in the form of an acknowledgement or a timeline to fix.
>
>
>
> On Sun, Jun 30, 2019 at 8:23 PM Shubham Mahajan <mr.shubhammahajan at gmail.com> wrote:
>>
>> Hi Adrià,
>>
>> I have tested this scenario with different methods and want to discuss with your team.
>> Let me know if you have any questions.
>>
>>
>> On Tue, Mar 12, 2019 at 5:00 PM Shubham Mahajan <mr.shubhammahajan at gmail.com> wrote:
>>>
>>> Hi Adrià,
>>>
>>> Any update on the below one?
>>>
>>> On Tue, Feb 19, 2019 at 5:51 PM Adrià Mercader <adria.mercader at okfn.org> wrote:
>>>>
>>>> Thanks for the report Shubham,
>>>> The tech team will assess this and come back to you as soon as possible.
>>>>
>>>> Best Regards,
>>>>
>>>> Adrià
>>>>
>>>>
>>>> On Tue, 19 Feb 2019 at 14:15, Shubham Mahajan <mr.shubhammahajan at gmail.com> wrote:
>>>>>
>>>>> Hi Team,
>>>>>
>>>>> I was going through my project and found out security issue in the CKAN core.
>>>>>
>>>>> ### CKAN Version if known (or site URL)
>>>>> ckan - 2.7.2 and https://demo.ckan.org/
>>>>>
>>>>> ### Please describe the expected behaviour
>>>>> The cookie should be invalidated if it is copied from other location or other device or when the user logged out from the device.
>>>>>
>>>>> ### Please describe the actual behaviour
>>>>> Once you logged into the CKAN, the cookie auth_tkt is generated. If I copy this cookie or the attacker got the cookie and open a fresh ckan portal and embedded the same cookie, its allowing to login to ckan portal.
>>>>> Even if you logout and use the old cookie, it will allow you to login. Tested in demo.ckan.org also.
>>>>>
>>>>> ### What steps can be taken to reproduce the issue?
>>>>> 1. Login to demo.ckan.org
>>>>> 2. Copy auth_tkt cookie.
>>>>> 3. Paste that cookie in any other machine or browser or private mode.
>>>>>
>>>>> It will log you in.
>>>>>
>>>>> *Even if you logout and login again and logout and use the old cookie, its still working.
>>>>>
>>>>> --
>>>>> Regards,
>>>>>
>>>>> Shubham Mahajan
>>>>>
>>>>> _______________________________________________
>>>>> CKAN security
>>>>> https://lists.okfn.org/mailman/listinfo/security
>>>>> https://lists.okfn.org/mailman/options/security/adria.mercader%40okfn.org
>>>>>
>>>>> Repo: https://github.com/ckan/ckan-security
>>>
>>>
>>>
>>> --
>>> Regards,
>>>
>>> Shubham Mahajan
>>>
>>
>>
>>
>> --
>> Regards,
>>
>> Shubham Mahajan
>>
>
>
>
> --
> Regards,
>
> Shubham Mahajan
>
> _______________________________________________
> CKAN security
> https://lists.okfn.org/mailman/listinfo/security
> https://lists.okfn.org/mailman/options/security/ian%40excess.org
>
> Repo: https://github.com/ckan/ckan-security


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