Submission Details
Severity:
constructor doesn't check if the address is a valid one.
Summary
the constructor does not check if the address of the owner is a valid one, or there is no zero-address check .
Vulnerability Details
The contract initializes the owner in the constructor but doesn't verify that the deployer is the intended owner. This means that anyone deploying the contract becomes the owner, which is a security issue.
Impact
The vulnerability allows anyone to deploy the contract and gain unauthorized ownership, enabling potential data compromise, contract manipulation, and a loss of control over the contract's intended functions.
Tools Used
Manual Analysis
Recommendations
- constructor() {
- s_owner = msg.sender;
- }
+ constructor() {
+ require(msg.sender != address(0), "Invalid owner address");
+ s_owner = msg.sender;
}
Updates
Rewards breakdown
nSLOC
20This contest has a flat reward structure with the following payouts:
100 EXP
20 EXP
2 EXP
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