CVE-2018-13648 : Security Advisory and Response
Learn about CVE-2018-13648, a critical integer overflow flaw in an Ethereum token smart contract allowing unauthorized balance manipulation. Find mitigation steps here.
A vulnerability in the mintToken function of an Ethereum token smart contract allows the contract owner to manipulate user balances.
Understanding CVE-2018-13648
What is CVE-2018-13648?
The integer overflow issue in the mintToken function of a smart contract designed for BGC, an Ethereum token, permits the contract owner to alter any user's balance.
The Impact of CVE-2018-13648
This vulnerability enables unauthorized balance manipulation, posing a significant risk to the integrity of the token system.
Technical Details of CVE-2018-13648
Vulnerability Description
The mintToken function in the smart contract implementation for BGC suffers from an integer overflow, granting the contract owner the ability to set any user's balance to a desired value.
Affected Systems and Versions
- Product: Not applicable
- Vendor: Not applicable
- Versions: Not applicable
Exploitation Mechanism
The vulnerability allows the contract owner to maliciously adjust user balances by exploiting the integer overflow in the mintToken function.
Mitigation and Prevention
Immediate Steps to Take
- Audit smart contracts for vulnerabilities regularly
- Implement input validation to prevent integer overflow
Long-Term Security Practices
- Follow secure coding practices for smart contracts
- Conduct security assessments and code reviews periodically
Patching and Updates
Apply patches and updates provided by the smart contract developer to address the integer overflow vulnerability.