Courses DNS & DHCP Penetration Testing

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DNS & DHCP Penetration Testing​

In today’s interconnected digital landscape, securing network infrastructure is paramount for organizations. The Domain Name System (DNS) and Dynamic Host Configuration Protocol (DHCP) are essential components that facilitate seamless communication within networks. However, these services are often targeted by malicious actors due to inherent vulnerabilities. This report explores the significance of penetration testing for DNS and DHCP, analyzes common vulnerabilities, and outlines methodologies and tools for effective security assessments.

Table of Contents
1. Introduction

• Overview of DNS and DHCP
• Importance of Penetration Testing for DNS and DHCP

2. Understanding DNS and DHCP
2.1. DNS (Domain Name System)

• 2.1.1. Functionality and Architecture
• 2.1.2. Common Vulnerabilities

2.2. DHCP (Dynamic Host Configuration Protocol)

• 2.2.1. Functionality and Architecture
• 2.2.2. Common Vulnerabilities

3. Penetration Testing Methodologies
3.1. Pre-Engagement Activities
3.2. Information Gathering

• 3.2.1. DNS Reconnaissance
• 3.2.1.1. DNS Enumeration

Techniques for DNS Enumeration

• 3.2.2. DHCP Discovery

3.3. Vulnerability Assessment
3.4. Exploitation Techniques

• 3.4.1. DNS Attacks (e.g., DNS Spoofing, Cache Poisoning)
• 3.4.2. DHCP Attacks
• 3.4.2.1. Rogue DHCP Server Attacks

Methods for Rogue DHCP Server Attack

• 3.4.2.2. DHCP Starvation Attacks

Methods for DHCP Starvation Attack
4. Tools for DNS and DHCP Penetration Testing
4.1. DNS Tools (e.g., nslookup, dig, dnscat)
4.2. DHCP Tools (e.g., DHCPig, Yersinia)

5. Practical Exercises
5.1. Setting Up a Test Environment
5.2. Conducting DNS Penetration Testing

• 5.2.1. DNS Enumeration
• 5.2.2. Exploiting DNS Vulnerabilities

5.3. Conducting DHCP Penetration Testing

• Conducting Rogue DHCP Server Attacks
• Starvation Attack

6. Mitigation Strategies
6.1. Securing DNS
6.2. Securing DHCP
7. Conclusion
8. References

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