BAM requires all BOINC passwords to be the same.  I am not certain about
Grid Republic. Conversely, BAM makes it relatively simple to change all the
passwords at once.

jm7


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  |Jonathan Miller <[email protected]>                              
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  |BOINC Developers Mailing List <[email protected]>                   
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  |10/25/2011 07:06 AM                                                          
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  |[boinc_dev] BOINC security and MD5                                           
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  |<[email protected]>                                         
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At Climate Prediction dot Net we have just had an SQL injection incident
which lead (due to poor security on our part, not BOINC's) to user emails
and password hashes being obtained.

Given that MD5 can be cracked relatively quickly, are there any plans to
move away from MD5 hashing of the password/email authentication for BOINC?

The PHP manual recommends against using MD5 because it is no longer
considered strong enough.
http://us2.php.net/manual/en/faq.passwords.php#faq.passwords.fasthash

We have gone to some lengths to notify our users of this incident, and
we've had quite a few responses from volunteers who have used the same
email/password combination on other BOINC projects and websites.

This causes me some concern because, given that BOINC is open source, it is
trivially easy for a cracker to determine the function that writes the hash
to the database, and note how the hash is constructed by appending the
email address to the  password.

The attackers on our site virtually always grabbed the email address and
the password hash in the same query, so the crackers have half the hash's
input (the email address) only have to guess the password part; the fact
that the password hash incorporates the email address does not really add
any security (other than preventing simple searches on sites such as
http://passcracking.com/ )

What are your thoughts and/or plans on this issue?

Jonathan Miller
System Administrator
Climate Prediction dot Net, University of Oxford
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