PwnDiary

Everything about security

Month

September 2018

[DefCamp CTF Quals 2018] Even More Lucky Write-up (Pwn50)

We have updated the lucky game just for you! Now the executable is lighter and more efficient. Target: 167.99.143.206 65032 Bin: https://dctf.def.camp/dctf-18-quals-81249812/lucky2 Let’s check the file information first.

It is an ELF 64-bit LSB shared object which is dynamically… Continue Reading →

[DefCamp CTF Quals 2018] Lucky Write-up (Pwn50)

How lucky are you? Target: 167.99.143.206 65031 Bin: https://dctf.def.camp/dctf-18-quals-81249812/lucky Let’s look at the file first.

It is an 64-bit ELF shared object which is dynamically linked and stripped. In order to see how it works, let’s run it.

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[CSAW CTF Quals 2018] Shellcode Write-up (Pwn100)

Linked lists are great! They let you chain pieces of data together. nc pwn.chal.csaw.io 9005 shellpointcode Let’s check the file information first.

We have a 64-bit ELF shared object which is dynamically linked and not stripped. Let’s look at… Continue Reading →

[noxCTF 2018] Guess The String Write-up (Reverse438)

Would you like to test your luck? Let’s see if you can guess the correct string. nc chal.noxale.com 22234 GuessTheString Let’s check the file format first.

It is a 64-bit ELF shared object which is dynamically linked and not… Continue Reading →

[noxCTF 2018] The Name Calculator Write-up (Pwn537)

You can calculate almost everything, why not calculate names? nc chal.noxale.com 5678 TheNameCalculator Let’s check the given file first.

It is a 32-bit ELF file which is dynamically linked and not stripped. Let’s check the protections of it.

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[noxCTF 2018] BelieveMe Write-up (Pwn378)

What is going on here ? I don’t believe you… you are crazy !!! (No ASLR) nc 18.223.228.52 13337 believeMe Let’s check the file first.

It is a 32-bit ELF file which is dynamically linked and not stripped. Let’s… Continue Reading →

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