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 the lack of input validation in the code under review.

Vulnerability Details

The code assumes that inputs, specifically the variables "coinSold" and "coinBought," are valid and contain the necessary information. However, there are no explicit checks or validations performed on these inputs. This lack of input validation leaves the system vulnerable to potential issues arising from invalid or malicious inputs.

Impact

The impact of this vulnerability can be significant. Without proper input validation, the system is exposed to various risks. Invalid inputs may lead to unexpected behavior, erroneous calculations, or even security breaches. Attackers could exploit this vulnerability by providing manipulated or malicious inputs, causing disruptions, financial losses, or unauthorized access to sensitive data.

Proof of Concept

// Function with lack of input validation
func swapCoins(coinSold sdk.Coin, coinBought sdk.Coin) {
    // Code logic...
    // No explicit input validation is performed
    // Code continues...
}

Tools Used

The analysis and testing process for this vulnerability report involved manual code review and analysis.

Recommended Mitigation Steps

To mitigate the lack of input validation vulnerability, the following steps are recommended:

1. Implement thorough input validation mechanisms for all user inputs.
2. Validate inputs against expected ranges, formats, and criteria.
3. Use appropriate data validation functions or libraries to ensure input integrity.
4. Apply strict input sanitization techniques to prevent code injection attacks.
5. Implement logging and error handling mechanisms to provide meaningful feedback and handle exceptional cases gracefully.
6. Perform extensive testing, including both positive and negative test cases, to validate the input validation mechanisms.
7. Regularly review and update input validation procedures to account for evolving security threats and requirements.

By following these mitigation steps, the project can enhance the security and reliability of the system by ensuring the validity and integrity of user inputs.

Assessed type

Error

[c4-pre-sort]

JeffCX marked the issue as low quality report

[JeffCX]

Duplicate of #6

I think the warden accidentally submit report twice

[c4-judge]

0xean marked the issue as unsatisfactory: Invalid