Re: NSLOOKUP.EXE

From: Filip Maertens (fmtat_private)
Date: Fri Mar 21 2003 - 01:39:49 PST

  • Next message: Chris Calabrese: "Re: NSLOOKUP.EXE"

    > Hi List,
    > Can you do anything interesting with this?:
    
    Identified the same behaviour on a SuSE box one year ago while teaching a UNIX hacking class (meanwhile corrected in SuSE-SA-2002-026-bind). Further, a quick Google search gives us an "old story" on this topic (postings dating back to 1998 on nslookup overflows).  However, overflowing by command-line doesn't seem to be working for me (win2k server gives me a "Input line too long" error); one has to enter the payload in the console of the nslookup utility.  Having a quick look at it, the problem seems to be everywhere while  -handling- user supplied data.  Have a look at nslookup bumming out on me when supplying an overly long "set q=" statement.
    
    --[snip]--
    > set q=aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
    aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
    aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
    aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
    aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa%s%s%s%s
    Unrecognized command: ¼·>
    >
    > mailhost
    Server:  xxx.xxx.xxx.com
    Address:  XXX.XXX.XXX.XXX
    
    C:\>
    --[snip]--
    
    Btw: don't like the sound of the "Unrecognized command" error either :-) 
    
    
    Anyone?
    
    
    Regards,
    Filip
    



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