Password Exposing
Summary
Exposing a password
Vulnerability Details
The contract has two storage variables that store the address and the password of the owner. The password is supposed to be known only by the owner. Although the variables are declared as private, they are all visible and can be accessed by anyone due to the public nature of all the data stored on a public blockchain. Private state variables are only visible for the contract they are defined in and not in derived contracts. Yet, anyone can access the slot where this variable lives and read its value.
Impact
The password can be seen by anyone.
Tools Used
Recommendations
Lead Judging Commences
finding-anyone-can-read-storage
Private functions and state variables are only visible for the contract they are defined in and not in derived contracts. In this case private doesn't mean secret/confidential
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