CVE-2018-12056 Explained : Impact and Mitigation

All For One, an Ethereum gambling game, contains a vulnerability in its smart contract implementation that allows attackers to manipulate the random value generation, leading to consistent wins and rewards.

Understanding CVE-2018-12056

What is CVE-2018-12056?

The vulnerability in the maxRandom function of the All For One smart contract on the Ethereum network enables attackers to exploit the predictable random value generation, ensuring their victory in the game.

The Impact of CVE-2018-12056

The vulnerability allows attackers to consistently win in the All For One gambling game on Ethereum by manipulating the random value generation, potentially resulting in financial gains.

Technical Details of CVE-2018-12056

Vulnerability Description

The maxRandom function in the smart contract implementation of All For One uses publicly readable variables to generate random values, allowing attackers to obtain the _seed value through a getStorageAt call and manipulate the outcome.

Affected Systems and Versions

Product: All For One
Vendor: N/A
Version: N/A

Exploitation Mechanism

Attackers exploit the vulnerability by retrieving the _seed value through a getStorageAt call, enabling them to predict and control the random value generation, ensuring their success in the game.

Mitigation and Prevention

Immediate Steps to Take

Audit smart contracts for secure random value generation mechanisms.
Implement secure coding practices to prevent predictable outcomes.
Monitor and analyze game results for unusual patterns that may indicate exploitation.

Long-Term Security Practices

Regularly update and patch smart contracts to address known vulnerabilities.
Conduct security assessments and penetration testing to identify and mitigate potential weaknesses.

Patching and Updates

Ensure that the smart contract implementation of All For One is updated with secure random value generation methods and follow best practices to prevent exploitation.