Full Disclosure mailing list archives
Re: EasyJet is storing user passwords in the clear
From: Sai Emrys <sai () saizai com>
Date: Thu, 25 Feb 2010 14:44:22 -0800
Dan -
I see where you're coming from, but what are the most recent statistics on the effectiveness of hash cracking? Isn't it something like 70% of the passwords in the field can be cracked with a minimal amount of brute forcing?
Of course this depends on what you mean by "minimal". http://www.imperva.com/docs/WP_Consumer_Password_Worst_Practices.pdf claims 20% success with a 5k dictionary based on the RockYou password db. Presumably this would be at least somewhat worse with an unknown db, since their results are from post hoc knowledge.
There are best practices, and there are vulnerabilities. I don't think anybody's going to argue it's not best practice to store hashes rather than plaintext, but lets not delude ourselves regarding their effectiveness.
Fair enough. As I wrote in a comment on my blog post, the vulnerability here is not that EasyJet data would be compromised - if this is relevant, that's already happened - but that it would lead to easy escalation of the compromise. Not every vulnerability disclosure is on the level of structural DNS issues. ;-) I think that this is at about the level of finding a blind SQL injection hole. Is it an awesome new hack? Hardly. Is it incompetent of EasyJet, given that it's a large company with a lot of users' data? Yes. Thanks, - Sai _______________________________________________ Full-Disclosure - We believe in it. Charter: http://lists.grok.org.uk/full-disclosure-charter.html Hosted and sponsored by Secunia - http://secunia.com/
Current thread:
- EasyJet is storing user passwords in the clear Sai Emrys (Feb 25)
- Re: EasyJet is storing user passwords in the clear Dan Kaminsky (Feb 25)
- Re: EasyJet is storing user passwords in the clear Michael Neal Vasquez (Feb 25)
- Re: EasyJet is storing user passwords in the clear Dan Kaminsky (Feb 25)
- Re: EasyJet is storing user passwords in the clear Michael Neal Vasquez (Feb 25)
- Re: EasyJet is storing user passwords in the clear Dan Kaminsky (Feb 25)
- Re: EasyJet is storing user passwords in the clear Michael Neal Vasquez (Feb 25)
- Re: EasyJet is storing user passwords in the clear Dan Kaminsky (Feb 25)
- Re: EasyJet is storing user passwords in the clear Sai Emrys (Feb 26)
- Re: EasyJet is storing user passwords in the clear Dan Kaminsky (Feb 25)
- Re: EasyJet is storing user passwords in the clear Sai Emrys (Feb 26)
