Difference between revisions of "CTF-practice-evening:2014-07-07"

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* Dimitris is discussing the challenges solved by Team Knuffelhackers in the Pwnium CTF last weekend
 
* Dimitris is discussing the challenges solved by Team Knuffelhackers in the Pwnium CTF last weekend
* Kernel land: you needed to single step through the "ticks" and examine the flag variable in memory at Tick 3
+
* Kernel land:  
 +
** Static binary - Dimitris loaded it into QEMU
 +
** When he runs it it produces ticks - the hint: the flag is on the 3rd ticket
 +
** He added a debugger to the VM
 +
** He put a breakpoint on timer tick - and there's also a variable called 'flag'
 +
** You needed to single step through the "ticks" and examine the flag variable in memory at Tick 3
 +
* USB is fun:
 +
**

Revision as of 18:17, 7 July 2014

CTF-practice-evening:2014-07-07
Date 2014/07/07
Time
Location ACTA
Type Workshop
Contact Melanie

Capture The Flag evening - Part 21

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

General CTF Info

Pwnium CTF Retrospective

  • Dimitris is discussing the challenges solved by Team Knuffelhackers in the Pwnium CTF last weekend
  • Kernel land:
    • Static binary - Dimitris loaded it into QEMU
    • When he runs it it produces ticks - the hint: the flag is on the 3rd ticket
    • He added a debugger to the VM
    • He put a breakpoint on timer tick - and there's also a variable called 'flag'
    • You needed to single step through the "ticks" and examine the flag variable in memory at Tick 3
  • USB is fun: