NetCat - 2 - NRF24CTF

Problem Statement

What Is The Flag Mentioned In The Source Code?​

Prerequisites

• Wireshark (basic use of filters)

Solution

The challenge statement is a straightforward problem. We need to find the flag in the packet bytes as it will be in the packet bytes of whatever webpage the attacker loads. We were told the flags will be in EWU{some_text} format. So why don’t we search for the string?

Most easiest way to search a string is click Edit>Find Packet… or CTRL+F

We found a match, so let's open the packet bytes. To do this, we need to

Right Click on the TCP segment data and click Show Packet Bytes or CTRL+SHIFT+O

Credits

• Hashnode - for the amazing platform

• EWU - for delaying this write-up (they restricted challenge access within <36 hours)