Book Image

Practical Web Penetration Testing

By : Gus Khawaja
Book Image

Practical Web Penetration Testing

By: Gus Khawaja

Overview of this book

Companies all over the world want to hire professionals dedicated to application security. Practical Web Penetration Testing focuses on this very trend, teaching you how to conduct application security testing using real-life scenarios. To start with, you’ll set up an environment to perform web application penetration testing. You will then explore different penetration testing concepts such as threat modeling, intrusion test, infrastructure security threat, and more, in combination with advanced concepts such as Python scripting for automation. Once you are done learning the basics, you will discover end-to-end implementation of tools such as Metasploit, Burp Suite, and Kali Linux. Many companies deliver projects into production by using either Agile or Waterfall methodology. This book shows you how to assist any company with their SDLC approach and helps you on your journey to becoming an application security specialist. By the end of this book, you will have hands-on knowledge of using different tools for penetration testing.

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Table of Contents (18 chapters)
Preface
Preface
Who this book is for
What this book covers
To get the most out of this book
Get in touch
Disclaimer
Free Chapter
1
Building a Vulnerable Web Application Lab
Building a Vulnerable Web Application Lab
Downloading Mutillidae
Installing Mutillidae on Windows
Installing Mutillidae on Linux
Using Mutillidae
Summary
2
Kali Linux Installation
Kali Linux Installation
Introducing Kali Linux
Installing Kali Linux from scratch
Installing Kali on VMware
Installing Kali on VirtualBox
Bridged versus NAT versus Internal Network
Updating Kali Linux
Summary
3
Delving Deep into the Usage of Kali Linux
Delving Deep into the Usage of Kali Linux
The Kali filesystem structure
Handling applications and packages
Handling the filesystem in Kali
Security management
Secure shell protocol
Configuring network services in Kali
Process management commands
System info commands
Summary
4
All About Using Burp Suite
All About Using Burp Suite
An introduction to Burp Suite
A quick example
Visualizing the application structure using Burp Target
Intercepting the requests/responses using Burp Proxy
Crawling the web application using Burp Spider
Looking for web vulnerabilities using the scanner
Replaying web requests using the Repeater tab
Fuzzing web requests using the Intruder tab
Installing third-party apps using Burp Extender
Summary
5
Understanding Web Application Vulnerabilities
Understanding Web Application Vulnerabilities
File Inclusion
Cross-Site Scripting
Cross-Site Request Forgery
SQL Injection
Command Injection
OWASP Top 10
Summary
6
Application Security Pre-Engagement
Application Security Pre-Engagement
Introduction
The first meeting
Non-Disclosure Agreement
Kick-off meeting
Time and cost estimation
Statement of work
Penetration Test Agreement
External factors
Summary
7
Application Threat Modeling
Application Threat Modeling
Software development life cycle
Application Threat Modeling at a glance
Application Threat Modeling in real life
Application Threat Modeling document parts
Practical example
Summary
8
Source Code Review
Source Code Review
Programming background
Enterprise secure coding guidelines
Static code analysis – manual scan versus automatic scan
Secure coding checklist
Summary
9
Network Penetration Testing
Network Penetration Testing
Passive information gathering – reconnaissance – OSINT
Active information gathering – services enumeration
Vulnerability assessment
Exploitation
Privilege escalation
Summary
10
Web Intrusion Tests
Web Intrusion Tests
Web Intrusion Test workflow
Identifying hidden contents
Common web page checklist
Special pages checklist
Reporting
Summary
11
Pentest Automation Using Python
Pentest Automation Using Python
Python IDE
Penetration testing automation
Summary
12
Nmap Cheat Sheet
Nmap Cheat Sheet
Target specification
Host discovery
Scan types and service versions
Port specification and scan order
Script scan
Timing and performance
Firewall/IDS evasion and spoofing
Output
13
Metasploit Cheat Sheet
Metasploit Cheat Sheet
Metasploit framework
14
Netcat Cheat Sheet
Netcat Cheat Sheet
Netcat command flags
Practical examples
15
Networking Reference Section
Networking Reference Section
Network subnets
Port numbers and services
16
Python Quick Reference
Python Quick Reference
Quick Python language overview
17
Other Books You May Enjoy
Other Books You May Enjoy
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Common web page checklist

This is at the heart of the checklist for web intrusion testing. As mentioned in the preceding workflow, you will need to apply this checklist to every page, regardless of its nature. Let's dive in:

  1. Identify the entry points to the web page (which lead to the backend; remember that we will use the entry points in the next steps), including:
    • URLs
    • Headers (for example, cookie, URL referrer, and so on)
    • HTML controls (drop-down list, radio button, hidden input, textbox, and so on)
  2. Check all of the backend or third-party web services and web APIs called using Burp Target.
  3. Force the URL into HTTP mode, and see if it works, or if it stays in HTTPS.
  4. Try to make the page generate an error; in another words, do error messages reveal clues to hackers?
  5. Test for logic flaws (for example, purchasing an item with zero dollars, or applying a randomly generated...
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