Submission Details
Severity:
storage is readable even if private
Summary
Storage variables are readable on the blockchain as all data is public.
Vulnerability Details
Because all data on blockchains is public, it can be read and the password can be retrieved by anyone if stored in plain text.
Impact
High
Tools Used
EthersJS
Recommendations
Encrypt password and store encrypted password only.
POC:
const value = await provider.getStorageAt(passwordStoreAddress, 1);
console.log(`Value at slot 1: ${value}`);
Updates
Lead Judging Commences
inallhonesty
almost 2 years ago
inallhonesty almost 2 years ago
Submission Judgement Published Assigned finding tags:
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
Rewards breakdown
nSLOC
20This contest has a flat reward structure with the following payouts:
100 EXP
20 EXP
2 EXP
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