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Date:      Thu, 10 Sep 1998 10:46:07 -0700
From:      Darren Mutz <mutz@aig.jpl.nasa.gov>
To:        freebsd-security@FreeBSD.ORG
Subject:   Re: Err.. cat exploit.. (!) 
Message-ID:  <199809101746.KAA15836@pompeii.jpl.nasa.gov>
In-Reply-To: Your message of "Thu, 10 Sep 1998 11:10:22 EDT." <199809101510.LAA08830@khavrinen.lcs.mit.edu> 

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><<On Thu, 10 Sep 1998 14:43:24 +0100, Josef Karthauser <joe@pavilion.net> said:
>
>>> bofh$ cat sendmail.st 
>>> `ay5habf33*`ma}`)`Jj]:        Jsu-2.01$ xtermxterm
>>> su: xtermxterm: command not found
>>> bofh$ 
>
>> I've noticed this also.  Catting some binaries (by accident of course)
>> seems to interact with the terminal badly!!  This is on an 'rxvt' running
>> bash.
>
>That's why you should normally use `more' or `less'.

IMHO, that's not the real fix here -- what's potentially of more
interest is the fact that writing some sequence of characters to rxvt
can confuse it to the extent that it will execute another string you
write to it. This problem seems to imply that anyone with write access
to your terminal can execute commands as you.

--
Darren Mutz
darren.mutz@jpl.nasa.gov
My opinions, not JPL's.


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