Big Transfer | CyberStart Completion

Intern

Hello World Mixed Up Messages Social Engineering Lazy Locked Login The Rocketeer 610enC0de'd Password Traffic Jam Start-Up Troubles Hextraordinary Maths at Light Speed Off Balance The Final Countdown

Headquarters L1

Social Secret Broken Banks Happy Customers Race To Where Mixed Messages Executable Secret Saesar Hidden Report Bike Fan Horrible Hats Tower of Wheels Binary Bike Lock

Headquarters L2

Decryption Ring Binary Bike Lock Secret Pages Too Much Text More Broken Bicycles Broken Link Hard Hash Encrypted Message Fingerprints Useful Hack Under Attack User Who

Headquarters L3

A Secret Rendezvous Lucky Throw Chopper Check-in Confused Secret Source Corrupted Route into the Router Password Postulation Snake Charmer The Competitor Revealed Big Transfer Dante In Command?

Headquarters L4

A Helping Hand Arnold Chopper? Photobomb Upgrades? Paaa! A Dangerous Contact Maggie's File Bendikke Loves Axes Phishing For Flemming Lockdown Lost But Not Forgotten Bad Kitty

Headquarters L5

Perplexed by Pixels Word On The Street Shinji's Drone Out Of Sight Zapped File Found Shopping For Secrets Perplexed by Pixels Yakoo Cars T-Shirt Trivia Baffled By Browsers Dangerous Comment

Headquarters L6

Rezapped Truck Stop Meeting Momoko Lost Key Running Man Heroka's DB Hush Fund Junya Who? QR.gif Custom Plates Still Hiding Brute Strength

Headquarters L7

Dot Dot Dash Hidden Boats Docking Port Pedro's Password Quick Drop Miguel the Moneyman Developer Disaster Breaking Bottles Bash the Botnet All Zipped Up Secret Spreadsheet Password Pickle

Moon L1

Programming 101 Handy Variables Converting for Fun Maths in Code Super Strings

Moon L2

Flow with Conditionals Logical Let's Get Functional Hooray for Arrays Going Loopy

Big Transfer

Briefing:

Agent, we’ve just intercepted a message between two of The Choppers talking about how they intend to steal money from the bank account of a different competitor to fund their plans.

It said they’ve found a weakness in the money transfer tool on the Global Bank website. We’ve just successfully put through a test transfer, can you prove it’s vulnerable by transferring 1000 to a bank account called cpatestreceiver from cpatestsender.

Tip: Sometimes URLs can be manipulated to bypass security.

Hint:

Did you notice the URL on the successful transfer page? I wonder what would happen if you changed the parameters and submitted it again?

How to Solve:

Change the details in the URL as follows:
1. amount=100
2. from=cpatestsender
3. to=cpatestreciever
The URL should look like this: https://www.bankwithglobal.com/transfer?amount=1000&from=cpatestsender&to=cpatestreceiver
Enter the new URL into the builtin address bar to get the flag.

Improve this page