CVE-2018-13691 Explained : Impact and Mitigation
Discover how the CVE-2018-13691 vulnerability in Ethereum token contract RTokenMain allows unauthorized balance manipulation through an integer overflow, impacting user balances and transactions.
In the Ethereum token contract known as RTokenMain, a smart contract implementation flaw in the mintToken function allows the contract owner to manipulate user balances through an integer overflow.
Understanding CVE-2018-13691
What is CVE-2018-13691?
The vulnerability exists in version 3 (RS) of the RTokenMain Ethereum token contract, enabling unauthorized balance manipulation by the contract owner.
The Impact of CVE-2018-13691
The flaw allows the contract owner to set any user's balance to a desired value, potentially leading to financial losses and unauthorized transactions.
Technical Details of CVE-2018-13691
Vulnerability Description
The mintToken function in the RTokenMain contract suffers from an integer overflow, granting the contract owner unauthorized control over user balances.
Affected Systems and Versions
- Product: RTokenMain
- Vendor: N/A
- Version: 3 (RS)
Exploitation Mechanism
The flaw enables the contract owner to exploit the mintToken function to manipulate user balances through an integer overflow.
Mitigation and Prevention
Immediate Steps to Take
- Audit smart contracts for integer overflow vulnerabilities
- Implement input validation to prevent unauthorized balance modifications
Long-Term Security Practices
- Regular security audits of smart contracts
- Stay informed about best practices in smart contract development
Patching and Updates
Apply patches provided by the Ethereum token contract maintainers to address the integer overflow vulnerability.