Re: freeradius denial of service in authentication flow

Florian Weimer <[email protected]> Sun, 16 Feb 2014 10:39:27 +0100
Newsgroups gmane.os.freebsd.bugbusters
Message-ID <[email protected]>
* Alan DeKok:

> Florian Weimer wrote:
>> * Alan DeKok:
>> 
>>>   That's an issue, but a rare one IMHO.  The user has to exist on the
>>> system.  So this isn't a remote DoS.
>> 
>> Could you elaborate on this assessment?  Is this because typical data
>> sources for SSHA passwords limit the length of the salt and thus the
>> length of the SSHA hash?
>
>   Partly.  The typical use-case for a remote DoS is for an
> unauthenticated user to take down the system.  Here, the user has to be
> known, *and* be able to create a long SSHA password.
>
>   To me, this puts the issue into the category of "known users can do
> bad things", which is very different from "unknown users can do bad things".

Okay, fair enough.

As this is already public via

<http://lists.freebsd.org/pipermail/freebsd-bugbusters/2014-February/000610.html>

, I will request a CVE on oss-security.
_______________________________________________
[email protected] mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-bugbusters
To unsubscribe, send any mail to "[email protected]"