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- Newsgroups: alt.security
- Path: sparky!uunet!munnari.oz.au!manuel!coombs!avalon
- From: avalon@coombs.anu.edu.au (Darren Reed)
- Subject: Re: CERT ADVISORY - Multiple SunOS Vulnerabilities
- Message-ID: <avalon.711975096@coombs>
- Lines: 24
- Sender: news@newshost.anu.edu.au
- Organization: Computer Services Centre, Australian National University
- References: <9207211919.AA20501@tictac.cert.org> <1992Jul22.154650.9967@jarvis.csri.toronto.edu> <1992Jul22.212329.12887@fwi.uva.nl> <g=tx##p@rpi.edu>
- Date: 24 Jul 92 10:51:36 GMT
-
- fitzgb@mml0.meche.rpi.edu (Brian Fitzgerald) writes:
-
- >Casper H.S. Dik writes:
- >>
- >>BUGID: 1095935
- >> NFS server in which a client presenting a 32-bit uid in which
- >> the 16 low-order bits are 0 gets interpreted as root on the server.
-
- >Are there any operating systems available that present a 32 bit uid?
-
- >Brian
-
- OS's arent the only things which can use NFS. How hard would it be to write
- an NFS client which connected to the server using NFS ?
-
- And if you were a hacker and knew this was a problem, would you try writing
- such an NFS client ?
-
- Given that in both cases a normal user doesnt have to bind to a priveledged
- port nor access the raw socket to write such a client, i think there could
- well be some problems.
-
- darren
-