Inadequate error handling

[code423n4]

Lines of code

https://github.com/code-423n4/2023-06-canto/blob/a4ff2fd2e67e77e36528fad99f9d88149a5e8532/Canto/x/coinswap/keeper/swap.go#L11

Vulnerability details

Summary

This report highlights a high vulnerability related to inadequate error handling in the code under review.

Vulnerability Details

The code lacks proper error handling in certain functions. Specifically, when errors occur, such as in the swapCoins function, they are not handled appropriately. Instead of providing context or logging the error, the code simply returns the error as is. This can lead to poor user experience and make it difficult to identify and resolve issues.

Impact

The impact of this vulnerability is significant. Without proper error handling, the system may fail to provide meaningful feedback to users when errors occur. This can result in confusion, frustration, and potential misuse of the system. In addition, the lack of error logging makes it challenging to identify and troubleshoot problems, which can lead to extended downtime and decreased system reliability.

Proof of Concept

function swapCoins(uint256 amount) public returns (bool) {
    // Code logic here

    // Inadequate error handling
    if (someCondition) {
        return false; // Error is returned without context or logging
    }

    // More code logic here
}

Tools Used

The analysis of this vulnerability was performed manually by reviewing the codebase and identifying areas where error handling was inadequate.

Recommended Mitigation Steps

To address this vulnerability, it is recommended to implement proper error handling throughout the codebase. The following steps can be taken:

1. Identify all functions that can potentially return errors.
2. Implement appropriate error handling mechanisms, such as using try-catch blocks or error codes.
3. Provide meaningful error messages or logs that help in understanding the cause of the error.
4. Consider implementing a centralized error handling mechanism to ensure consistency and ease of maintenance.
5. Thoroughly test the error handling logic to verify its effectiveness and ensure it handles all possible error scenarios.

By following these mitigation steps, the project can improve user experience, enhance system reliability, and facilitate easier troubleshooting in case of errors.

Assessed type

Error

[c4-pre-sort]

JeffCX marked the issue as low quality report

[JeffCX]

Impact is not severe to be a M / H

The impact of this vulnerability is significant. Without proper error handling, the system may fail to provide meaningful feedback to users when errors occur. This can result in confusion, frustration, and potential misuse of the system. In addition, the lack of error logging makes it challenging to identify and troubleshoot problems, which can lead to extended downtime and decreased system reliability.

[c4-judge]

0xean marked the issue as unsatisfactory: Overinflated severity