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This is a STATIC Analysis challenge i.e. you can view and disassembly the code using GDB but cannot run it. The restricted lab environment will not allow you to run it even if you try :)
Once you start the lab, you should see a binary called challenge.
Using static analysis, figure out the passcode to run challenge successfully i.e. ./challenge CORRECT_PASSCODE .
If you get the right passcode, a flag will be printed.
The following activities are strictly prohibited on this website unless otherwise explicitly stated as allowed in the mission statement:
- Using automated scanners
- Using brute force attacks
- Denial of Service attacks
- Attacking other student machines in challenges where you might achieve a shell on the vulnerable system
- Attacking the lab infrastructure
Users violating the above will be either temporarily or permanently banned from the website.
If you are unsure about an activity, then please contact support to confirm that it is allowed on our website.
Technical Support for this Lab:
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- Giving hints for a lab exercise
- In rare circumstances, if you have totally given up (NO!!!) then tell you how to solve it. This will be limited to sharing the solution video or lab report
- A lab exercise fails to load or has errors in it
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