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[ENG] Executing a Layer 7 TLS 1.3 Denial-of-Service (DoS) Attack with OpenSSL and Python on Kali Linux:
This demonstration, part of a webinar for EC-Council University, showcases the execution of a Layer 7 TLS 1.3 Denial-of-Service (DoS) attack using OpenSSL and Python on Kali Linux. One terminal window runs a TLS DoS attack via a custom OpenSSL-based script. A second window displays the current number of established connections, while the third monitors live server overload by comparing the baseline RTT with the current RTT – all targeting michalsoltysik.com. Two of these terminal windows show outputs from Python scripts executed on the operating system. The attack increases CPU usage, inflates RTT delays, and pushes the server toward saturation, with OpenSSL connections placing sustained stress on michalsoltysik.com. Both the attacker and the server contribute to RTT fluctuations due to CPU load, network congestion, NIC (Network Interface Controller) queue saturation, and the complexity of TLS handshakes.