Password publicly visible on-chain
Summary
Password is exposed on-chain
Vulnerability Details
Although declaring a variable as private stops it from being read by other smart contracts, one can still obtain the value by looking at the contract's storage on chain. The password will be stored in
Impact
The password of the owner will be visible on chain, so the owner is effectively compromised.
Tools Used
Manual Review
Recommendations
Private data should not be saved on a public blockchain. If having the password on-chain is so important to the contract's owner, they should store it in an encrypted form and make sure that only the owner can decrypt it.
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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