CVE-2018-17111 Explained : Impact and Mitigation

Coinlancer (CL) smart contract implementation vulnerability related to access control.

Understanding CVE-2018-17111

The smart contract for Coinlancer (CL) with an onlyOwner modifier has an access control vulnerability.

What is CVE-2018-17111?

The vulnerability arises from an incorrect comparison between msg.sender and owner, allowing unauthorized access to functions.

The Impact of CVE-2018-17111

All users of the contract can exploit this vulnerability, potentially leading to unauthorized actions.

Technical Details of CVE-2018-17111

The technical aspects of the vulnerability in detail.

Vulnerability Description

The onlyOwner modifier in the Coinlancer (CL) smart contract allows unauthorized access due to a flawed comparison.

Affected Systems and Versions

Product: Not applicable
Vendor: Not applicable
Versions: Not applicable

Exploitation Mechanism

Unauthorized users can exploit the vulnerability by bypassing the incorrect comparison between msg.sender and owner.

Mitigation and Prevention

Steps to mitigate and prevent the exploitation of CVE-2018-17111.

Immediate Steps to Take

Review and update the smart contract code to ensure correct access control.
Implement additional verification mechanisms to prevent unauthorized access.

Long-Term Security Practices

Regularly audit smart contracts for vulnerabilities and implement secure coding practices.
Educate developers on proper access control mechanisms and best practices.

Patching and Updates

Apply patches or updates provided by the Coinlancer (CL) team to address the access control vulnerability.