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Becoming the Hacker

You're reading from   Becoming the Hacker The Playbook for Getting Inside the Mind of the Attacker

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Product type Paperback
Published in Jan 2019
Publisher Packt
ISBN-13 9781788627962
Length 404 pages
Edition 1st Edition
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Author (1):
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Adrian Pruteanu Adrian Pruteanu
Author Profile Icon Adrian Pruteanu
Adrian Pruteanu
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Table of Contents (17) Chapters Close

Preface 1. Introduction to Attacking Web Applications FREE CHAPTER 2. Efficient Discovery 3. Low-Hanging Fruit 4. Advanced Brute-forcing 5. File Inclusion Attacks 6. Out-of-Band Exploitation 7. Automated Testing 8. Bad Serialization 9. Practical Client-Side Attacks 10. Practical Server-Side Attacks 11. Attacking APIs 12. Attacking CMS 13. Breaking Containers Other Books You May Enjoy
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Index

File inclusion to remote code execution

Similar to the file:// scheme used in the earlier example, the PHP interpreter also provides access to various input and output streams via the php:// scheme. This makes sense for when PHP is used in a command-line interface (CLI) and the developer needs to access these common operating system standard streams: stdin, stderr, stdout, and even the memory. Standard streams are used by applications to communicate with the environment they are executing in. For example, the Linux passwd will utilize the stdout stream to display informational messages to the terminal ("Enter your existing password"), stderr to display error messages ("Invalid password"), and stdin to prompt for user input to change the existing password.

The traditional way to parse input coming in from a web client is to read data using the $_GET and $_POST superglobals. The $_GET superglobal provides data that is passed in via the URL, while the $_POST superglobal...

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