THC-SSL-DOS The Hackers Choice Released

SSL or secure socket layer seems to be more secure but what keep in mind there is no security in this world there is only an opportunity, as discussed how to crack SSL on backtrack machine. Now the question how to measure the performance of SSL certificate the problem has been solved because THC just release a tool called THC-SSL-DOS the hacker choice. The hacker choice is a group of German hackers and THC-hydra is good password cracker that has also released by this team.


What is THC-SSL-DOS ?

THC-SSL-DOS is a tool to verify the performance of SSL. Establishing a secure SSL connection requires 15x more processing power on the server than on the client. THC-SSL-DOS exploits this asymmetric property by overloading the server and knocking it off the Internet.
This problem affects all SSL implementations today. The vendors are aware of this problem since 2003 and the topic has been widely discussed. This attack further exploits the SSL secure Renegotiation feature to trigger thousands of renegotiations via single TCP connection.



We are hoping that the fishy security in SSL does not go unnoticed. The industry should step in to fix the problem so that citizens are safe and secure again. SSL is using an aging method of protecting private data which is complex, unnecessary and not fit for the 21st century.”, Says a THC member, referring to 3 major vulnerabilities disclosed in SSL over the past 3 years.

Download

Windows binary: thc-ssl-dos-1.4-win-bin.zip
Unix Source   : thc-ssl-dos-1.4.tar.gz
Use “./configure; make all install” to build.
Usage:
./thc-ssl-dos 127.3.133.7 443
Handshakes 0 [0.00 h/s], 0 Conn, 0 Err
Secure Renegotiation support: yes
Handshakes 0 [0.00 h/s], 97 Conn, 0 Err
Handshakes 68 [67.39 h/s], 97 Conn, 0 Err
Handshakes 148 [79.91 h/s], 97 Conn, 0 Err
Handshakes 228 [80.32 h/s], 100 Conn, 0 Err
Handshakes 308 [80.62 h/s], 100 Conn, 0 Err
Handshakes 390 [81.10 h/s], 100 Conn, 0 Err
Handshakes 470 [80.24 h/s], 100 Conn, 0 Err

Tips & Tricks for whitehats
1. The average server can do 300 handshakes per second. This would require 10-25% of your laptops CPU.
2. Use multiple hosts (SSL-DOS) if an SSL Accelerator is used.
3. Be smart in target acquisition: The HTTPS Port (443) is not always the best choice. Other SSL enabled ports are more unlikely to use an SSL Accelerator (like the POP3S, SMTPS, … or the secure database port).

Note: If you want to learn more about Linux and Windows based Penetration testing, you might want to subscribe our RSS feed and Email Subscription  or become our Facebook fan! You will get all the latest updates at both the places.
Ehacking Staff
With more than 50 global partners, we are proud to count the world’s leading cybersecurity training provider. EH Academy is the brainchild of Ehacking, which has been involved in the field of training since the past Five years and continues to help in creating professional IT experts.

Most Popular

How To Create A Virtual Penetration Testing Lab At Home

In this article, I will demonstrate how to create your own virtual penetration testing lab at home. Creating a pentesting lab is must for...

The Importance of Cyber Security in The Medical Device Industry

Medical devices are a revolutionary aspect of healthcare - they connect doctors and patients, help diagnose and treat diseases. Some - like ECMO machines...

Top 5 Techniques Hackers Use to hack Social Media Accounts

These days, Social Media have become a significant need in our everyday life. It encourages us to associate and connect with anyone over the...

5 Top Programming Languages for Hacking

We live in the 21st century, which is very fast-changing. This is a century of competition for information and computing resources. Every year the...