On Sat, Oct 18, 2014 at 11:45 PM, Niphlod <niph...@gmail.com> wrote:

> that's why the whole thing goes away behind SSL. Expiring a session on
> logout is better than leaving it as it is, but even in that case *while
> userA is logged in *there's NO way to prevent a MITM from someone else.
>

That is why in another email (
https://groups.google.com/d/msg/web2py/Z3gjaLzM65E/DYtLhqJQH28J) I asked
whether there is a way to "restrict" only one instance of userA logged in
at any given point of time.
Off course it has its own issues :(

-Mandar



>
>
> On Saturday, October 18, 2014 12:18:30 AM UTC+2, Anthony wrote:
>>
>> On Friday, October 17, 2014 5:51:18 PM UTC-4, Dave S wrote:
>>>
>>>
>>>
>>> On Friday, October 17, 2014 1:15:39 PM UTC-7, Anthony wrote:
>>>
>>>> I was simply pointing out that sessions do not technically expire on
>>>> the server side. The browser expires sessions by ceasing to return the
>>>> session cookie. If an attacker steals the cookie and keeps sending it, then
>>>> the server does nothing to expire the session. However, Auth logins can
>>>> expire, but that is a different matter.
>>>>
>>>>
>>> What's the model for an attacker stealing a cookie?  Does it require
>>> access to the user's machine, or would a man-in-the-middle attack (with a
>>> wild proxy, for instance) work?
>>>
>>
>> Can be done via MITM attack.
>>
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