Difference between revisions of "CTF-practice-evening:2014-03-24"

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* Brainsmoke is explaining how he solved the challenge 'Minibomb' during the Codegate CTF
 
* Brainsmoke is explaining how he solved the challenge 'Minibomb' during the Codegate CTF
 
+
* Minibomb is a small setuid binary
 +
** This is probably a handmade binary, Linux ELF, 32 bit
 +
** You can see the ELF header if you use file or hexdump
 +
** For more information about the ELF header (including the binary entry point, memory pages being loaded, executable text, etc..), you can use readelf
  
 
= Next CTF Competition =
 
= Next CTF Competition =

Revision as of 19:35, 24 March 2014

CTF-practice-evening:2014-03-24
Date 2014/03/24
Time
Location ACTA
Type Workshop
Contact Melanie

Capture The Flag evening - Part 11

  • 24 March, 2014 - 7 PM
  • Please bring along a laptop with you!!!

General CTF Info

Walkthrough: Minibomb

  • Brainsmoke is explaining how he solved the challenge 'Minibomb' during the Codegate CTF
  • Minibomb is a small setuid binary
    • This is probably a handmade binary, Linux ELF, 32 bit
    • You can see the ELF header if you use file or hexdump
    • For more information about the ELF header (including the binary entry point, memory pages being loaded, executable text, etc..), you can use readelf

Next CTF Competition

Cryptanalysis

http://www.overthewire.org/wargames/krypton/krypton0.shtml