more info on the iosmash.c exploit

From: John Scimone (jscimoneat_private)
Date: Tue Apr 23 2002 - 13:23:43 PDT

  • Next message: Bill Weiss: "Re: /lib/ld-2.2.4.so"

    phased had some comments he wanted me to forward on to the lists in
    regards to his latest exploit.
    
    He says that skeys are used via all authentication methods... i.e telnet, so 
    someone could change the user to someone in the wheel group.  Haven't used 
    skeys via ssh yet but I presume it works.  Root obviously can't just telnet 
    in by default but usually can ssh, but if the box being exploited contains 
    people in the wheel group you can change the root user in the exploit to any 
    user to log in via skeys as that user.
    
    -sert-
    
    That file you've been guarding, isn't.
    -------------------------------------------------------------------
          ______________________________
         /   _____/\______   \__    ___/   | Secure Network Operations
         \_____  \  |       _/ |    |      | http://www.snosoft.com
         /        \ |    |   \ |    |      | reconat_private
        /_______  / |____|_  / |____|      |
                \/         \/              | Project Cerebrum
        Strategic  Reconnaissance Team     | cerebrumat_private
    
    ---------- Forwarded message ----------
    Date: Wed, 24 Apr 2002 03:33:15 +0400
    From: James Green <phasedat_private>
    To: reconat_private
    Subject: the iosmash.c exploit
    
    
    in the comments i used su to gain root, someone needs to post to bugtraq
    that skeys is used via all auth methods, i.e. telnet so you could change
    the user to someone in wheel, havent used skeys via ssh but i presume it
     works. root isnt allowed to telnet default but usually can ssh, but if the
     box has people in the wheel group you can change the root to any user in the
     exploit to log in via skeys as that user.  btw dont forward this post can i
     had some beers tonight heh :) put it in better english lol
    
    phased
    phasedat_private
    
    -------------------------------------------------------
    



    This archive was generated by hypermail 2b30 : Wed Apr 24 2002 - 14:15:28 PDT