full-disclosure - OS X DirectoryService DoS {@...ke adv: a041003-1}

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Message-ID: <20030417031735.21639.qmail@linuxmail.org>
From: subversive at linuxmail.org (subversive )
Subject: OS X DirectoryService DoS {@...ke adv:
    a041003-1}

Neeko Oni wrote:

>Ok, the PATH problem is self-explanatory (and has been exploited once
the DirectoryService process has crashed) but I've had some difficulty
>reproducing the DoS attack claim.  I've got a 10.2.4 machine sitting
>right next to me, I believe it's a stock install, but DirectoryService
>doesn't bind 625.  DirectoryService doesn't bind any ports and
>furthermore nothing binds 625 at all.
>
>Has anyone reproduced the DoS in that advisory?

I also read the advisory and of the two MacOS machines that I am able
to access (only one locally) I can confirm that on the machine that
I don't have local access there was a daemon running on port 625 and
as the advisory states I was able to reproduce the DoS attack. I'm 
not sure exactly which version of MacOS X that machine was running
but the daemon did crash and and refuse connection.

On the machine that I know for a fact is 10.2.4 and have local access to,
DirectoryService was setuid root and was running but there was no port
625 open. I haven't port scanned the machine to check other ports yet
so i'm not ruling out the possibility its running on a different port
just yet.

Has anyone else looked into this matter... ?

-subversive
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