Ethical hacking, also known as penetration testing or white-hat hacking, involves
authorized attempts to identify and exploit vulnerabilities in computer systems,
networks, and applications. The primary goal of ethical hacking is to enhance
security by finding and fixing weaknesses before malicious hackers can exploit
them.
1. What is Ethical Hacking?
Ethical hacking is the practice of intentionally probing systems for security flaws
with the owner’s permission. Ethical hackers use the same techniques and tools
as malicious hackers but aim to improve the security posture of an organization
rather than cause harm.
Key Principles of Ethical Hacking:
1. Permission: Ethical hackers must have explicit authorization to test the
system.
2. Integrity: The hacker's work should not compromise or damage the system.
3. Confidentiality: Any discovered vulnerabilities or sensitive information
must remain confidential.
4. Reporting: Ethical hackers must provide detailed reports of their findings to
the organization.
2. Types of Hackers
1. White Hat Hackers: Authorized professionals who perform ethical hacking
to improve security.
2. Black Hat Hackers: Malicious hackers who exploit vulnerabilities for
personal or financial gain.
3. Gray Hat Hackers: Individuals who discover vulnerabilities without
malicious intent but may exploit them without permission.
, 4. Script Kiddies: Inexperienced individuals who use pre-made tools to hack
without understanding the underlying techniques.
3. The Ethical Hacking Process
a. Planning and Reconnaissance
Understand the target system and its environment.
Collect information such as IP addresses, domain names, and network
topology.
b. Scanning
Use tools to identify active systems, open ports, and services.
Examples: Nmap, Wireshark.
c. Gaining Access
Attempt to exploit vulnerabilities to gain unauthorized access.
Techniques include SQL injection, phishing, or brute-force attacks.
d. Maintaining Access
Test whether an attacker could maintain access and operate undetected.
Evaluate the system's ability to detect and respond to threats.
e. Analysis and Reporting
Document all findings, including identified vulnerabilities, exploited
weaknesses, and recommendations for mitigation.
4. Tools Used in Ethical Hacking
1. Kali Linux: A specialized operating system with pre-installed tools for
penetration testing.
2. Metasploit: A framework for developing and executing exploit codes.