First Flight #13: Baba Marta

Summary

Functions which modify state variables are not emitting events. Events are important for off-chain monitoring, analytics, and integration with external systems. The lack of event emissions reduces transparency into state changes and makes it more difficult to track the contract's activity. The follo

Vulnerability Details

The following functions do not have emit events

1. HealthToken:: setMarketAndVotingAddress

2. HealthToken::distributeHealthToken

3. MartenitsaEvent::stopEvent

4. MartenitsaEvent::_addProducer

5. MartenitsaMarketplace::makePresent

6. MartenitsaMarketplace::collectReward

7. MartenitsaToken::updateCountMartenitsaTokensOwner

Impact

Impact:
The impact of this vulnerability can vary depending on the specific use case and the importance of the state variables being modified. In general, the lack of event emissions can lead to:

1. Reduced transparency and accountability in the contract's operations.

2. Potential synchronization issues between the contract and external entities.

3. Difficulty in debugging and auditing the contract's behavior.

4. Possible unexpected behavior or errors in dependent contracts or off-chain components.

Tools Used

VS Code, Foundry, Manual Review

Recommendations

To address this vulnerability, it is recommended to add appropriate event emissions to functions that modify state variables. Consider the following steps:

1. Identify all functions that change state variables and determine which changes warrant event emissions.

2. Define clear and descriptive event signatures that capture the relevant information about the state changes.

3. Emit the corresponding events within the functions, ensuring that they are triggered after the state variables have been successfully updated.

4. Update the contract's documentation to reflect the newly added events and their purposes.