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Re: Root login



Le Sam 13 septembre 2008 04:47, s. keeling a écrit :
[...]
>>  Try to login on any Lenny box console with an invalid account.
>>  You will get "Incorrect login" without being prompted for a
>>  password at all.
> What?  And you get a shell prompt?!?
>

Even if you do not have a shell, you do have an important information :
the login you tried does not exist. So, you can do a first rapid scan
based on dictionnary to find the existing users on the server. Then, you
can focus your attack on these accounts.

If the system would ask a password, even if the account does not exist,
you can not know if the account exist or not. The security probleme is
here, if I good understood the previous message.

As I use Etch, I was not able to test it on lenny and I did not test it on
Etch.


Fanfan
-- 
http://www.cerbelle.net - http://www.afdm-idf.org


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