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    • 2019
      • OverTheWire Advent
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      • Midnight Sun
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  • Pwnable.kr
    • 01 - fd
    • 02 - col
    • 03 - bof
    • 04 - flag
    • 05 - passcode
    • 06 - random
    • 07 - input
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    • 09 - mistake
    • 10 - Shellshock
    • 11 - coin1
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    • 13 - lotto
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    • 15 - cmd2
    • 16 - uaf
    • 17 - memcpy
    • 18 - asm
    • 20 - blukat
    • 21 - horcruxes
    • 33 - echo1
    • 34 - echo2
    • 43 - coin2
  • More Pwn
    • Protostar - format4
  • Lord of SQLI
    • Lord of SQLI
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  1. Pwnable.kr

01 - fd

PreviousThings I learned from DarkCTFNext02 - col

Last updated 4 years ago

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The Challenge

Mommy! what is a file descriptor in Linux?

ssh fd@pwnable.kr -p2222 (pw:guest)

The Solution

  1. argv[1] should be equal to 0x1234 so the file descriptor will be STDIN.

  2. Type LETMEWIN and here you go.