CVE-2018-12885 : What You Need to Know
Learn about CVE-2018-12885, a vulnerability in the MyCryptoChamp Ethereum game allowing attackers to manipulate the randMod() function to gain unfair advantages. Find mitigation steps and prevention measures here.
CVE-2018-12885 involves a vulnerability in the smart contract implementation for MyCryptoChamp, an Ethereum game, allowing attackers to manipulate the randMod() function to gain powerful champions or items.
Understanding CVE-2018-12885
What is CVE-2018-12885?
The vulnerability stems from the randMod() function in the smart contract, which utilizes publicly accessible variables and a private variable that can be exploited by attackers to receive rewards.
The Impact of CVE-2018-12885
The vulnerability enables potential attackers to exploit the smart contract and gain advantages within the game, compromising the fairness and integrity of the gameplay.
Technical Details of CVE-2018-12885
Vulnerability Description
The randMod() function in the MyCryptoChamp smart contract generates random values using accessible and private variables, allowing attackers to manipulate the outcome.
Affected Systems and Versions
- Product: N/A
- Vendor: N/A
- Versions: N/A
Exploitation Mechanism
Attackers can leverage the publicly accessible variables and a private variable in the smart contract to influence the generation of champions or items, granting them unfair advantages.
Mitigation and Prevention
Immediate Steps to Take
- Audit smart contracts for vulnerabilities regularly
- Implement secure coding practices
- Monitor and restrict access to critical functions
Long-Term Security Practices
- Conduct thorough security assessments during development
- Educate developers on secure coding practices
- Implement multi-factor authentication and access controls
Patching and Updates
Stay informed about security updates and patches for the smart contract to address any identified vulnerabilities.