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Re: Ecardis Password Reseting Vulnerability
From: Trish Lynch <trish () bsdunix net>
Date: 3 Mar 2003 17:37:05 -0000

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From: Haluk AYDIN <haydin () biznet com tr>
To: bugtraq () securityfocus com
Subject: Ecardis Password Reseting Vulnerability


I don't know if someone has discovered this before but
Ecartis 1.0.0 
(former listar) contains a vulnerability that enables
an attacker to reset 
passwords of any user defined on the list server,
including the list 

After logging on as a non-priviledged user, Ecartis
enables the user to 
change his/her password, but does not ask for the old
one. The first time 
I have seen this, I thought that the software relies
on the session 
cookie, but it seems this is not the case. 

The html page contains the username in the "hidden"
fields. After saving 
the page on disk, then replacing all "hidden" fields
with another username 
which is defined in the server, and reloading the page
again we can try 
our chance to change the password. Just fill in the
empty password fields 
with a password of your choice, and click "Change
Password": there you 
are... You have just reset the victim's password.

I have not tested this on different versions, but I
guess it will work for 
all of them. I would appreciate any comments on the issue.


Thank you for bringing this to our attention, it was
fixed only a few hours after recieving this.

The FreeBSD port (which I maintain) has also been updated

Please use snapshot versions after 20030227, and make
sure the FreeBSD port is update as well.

-Trish Lynch - ecartis core team. 

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  • Re: Ecardis Password Reseting Vulnerability Trish Lynch (Mar 03)
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