Useful Concepts - Ravi-Upadhyay/cyber-security-playground GitHub Wiki

This will contain all the generic concepts which will help to understand the problems and suggest robust solutions.

Index

• Different Representations of IP Address

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Different Representations of IP Address

Some applications block input containing hostnames like 127.0.0.1 and localhost, or sensitive URLs like /admin. In this situation, you can often circumvent the filter using various techniques:

• Using an alternative IP representation of 127.0.0.1, such as 2130706433, 017700000001, or 127.1.
• Registering your own domain name that resolves to 127.0.0.1. You can use spoofed.burpcollaborator.net for this purpose.
• Obfuscating blocked strings using URL encoding or case variation.

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