Q54
Single choice
John visits an online shop that stores the IDs and prices of the items to buy in a cookie. After selecting the items that he wants to buy, the attacker changes the price of the item to 1.
Original cookie values:
ItemID1=2
ItemPrice1=900
ItemID2=1
ItemPrice2=200
Modified cookie values:
ItemID1=2
ItemPrice1=1
ItemID2=1
ItemPrice2=1
Now, he clicks the Buy button, and the prices are sent to the server that calculates the total price.
Which of the following hacking techniques is John performing?