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Pete Finnigan
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Does Oracle enhance its o3logon?
« on: Dec 2nd, 2005, 6:28am »
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Hello, everyone!
 
Using sniffer, I got a big supprise in oracle 9i environment, its auth_sesskey has 16 bytes(32 nibbles), while, in oracle 8i, the auth_sesskey only has 8 bytes(16 nibbles).
 
So, I think Oracle may enhance its o3logon implementation.
 
Any one knows?
 
Thanks.
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Pete Finnigan
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Re: Does Oracle enhance its o3logon?
« Reply #1 on: Dec 4th, 2005, 9:27pm »
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Hi,
 
I can confirm this change as well. I saw this a couple of years or so ago. You do not need a sniffer to see it. Simply use SQL*Net trace level 16 or SUPPORT and make a login and its shown in the trace file.
 
cheers
 
Pete
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Pete Finnigan
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Re: Does Oracle enhance its o3logon?
« Reply #2 on: Jan 10th, 2006, 10:09pm »
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Hi,
 
Is there any information how it works?
 
I implemented a "poc" brute forcer for the older one, but  I did not find any information how the newer works.
 
Thanks,
 
Laszlo
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Pete Finnigan (email:pete@petefinnigan.com)
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Pete Finnigan
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Re: Does Oracle enhance its o3logon?
« Reply #3 on: Jan 12th, 2006, 8:17pm »
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Hi Laszlo,
 
have you published your Poc brute forcer?
 
cheers
 
Pete
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Re: Does Oracle enhance its o3logon?
« Reply #4 on: Jan 14th, 2006, 11:16am »
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Hi Pete,
 
Not yet, but I'm goin to publish it in the next week. I'll send you the link. I'm not absolutly convinced how usefull it is (considering the newer authentication alg.). At least it can be usefull if the client or the server is an older one.
 
Regards,
 
Laszlo
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Re: Does Oracle enhance its o3logon?
« Reply #5 on: Jan 14th, 2006, 10:29pm »
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Hi Laszlo,
 
Thanks for your reply, I would be interested to see it and also add a link to it on my tools page when you do release it.
 
cheers
 
Pete
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