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Re: buffer overflow in nslookup?


From: tarreau () AEMIAIF LIP6 FR (Willy TARREAU)
Date: Mon, 31 Aug 1998 10:38:50 +0200


Segmentation fault (core dumped)

At first, this does not seem a problem: nslookup is not suid root or anything.
But several sites have cgi-scripts that call nslookup... tests show that these
will coredump when passed enough characters. Looks exploitable to me...

It is, I've successfully got a shell using my old generic exploit, with 260
bytes followed by a pointer to esp-400.

                                        Willy

--
+----------------------------------------------------------------------------+
| Willy Tarreau - tarreau () aemiaif lip6 fr - http://www-miaif.lip6.fr/willy/  |
| System and Network Engineer - NOVECOM - http://novworld.novecom.fr/        |
| Magistere d'Informatique Appliquee de l'Ile de France ( MIAIF ), Year 1997 |
+----------------------------------------------------------------------------+



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