full-disclosure - [FD] Session Hijack Vulnerabilty on ebays german want ad?

Open Source and information security mailing list archives

Date: Mon, 23 Jun 2014 20:21:44 +0200
From: "Christian K." <waffenklang@...glemail.com>
To: fulldisclosure@...lists.org
Subject: [FD] Session Hijack Vulnerabilty on ebays german want ad?

Hi,

i have a question if this is an attack vector (website is german want ad
branch from ebay kleinanzeigen.ebay.de prob. english site affected too):

On Computer A the browser (FF) has an open tab with the site where, when
visited, user A is always signed on (because the specific site is the user
panel).

On Computer B user A wants to log into his account, but forgot his
password. He successfully changed his password using the "forgot password"
button and was able to log in.

Then user A moves from Computer B to Computer A (which was off at the time
user A was at Computer B) and starts its browser where he realizes that he
is still logged into his account on the site without any password
confirmation.

As this happend to me, the question is: is this an attack vector (I assume
it is) and how can I as a user protect myself? Am not really into security
engineering (just non-sec-related software engineering...), so forgive my
dumbness!

Thanks.

C.

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