CVE-2017-12117 : Vulnerability Insights and Analysis

This CVE-2017-12117 article provides insights into a vulnerability in the miner_start API of cpp-ethereum's JSON-RPC, its impact, technical details, and mitigation steps.

Understanding CVE-2017-12117

This CVE involves an improper authorization vulnerability in CPP-Ethereum, allowing unauthorized access to restricted functionality.

What is CVE-2017-12117?

An authorization bypass vulnerability in the miner_start API of cpp-ethereum's JSON-RPC enables attackers to bypass authorization mechanisms and gain unauthorized access.

The Impact of CVE-2017-12117

CVSS Score: 4 (Medium Severity)
Attack Vector: Network
Attack Complexity: High
Integrity Impact: Low
Scope: Changed
The vulnerability allows unauthorized users to exploit restricted functionalities through JSON requests.

Technical Details of CVE-2017-12117

This section delves into the specifics of the vulnerability.

Vulnerability Description

The vulnerability in CPP-Ethereum's JSON-RPC (Commit 4e1015743b95821849d001618a7ce82c7c073768) allows unauthorized access to restricted functionality due to improper authorization.

Affected Systems and Versions

Product: CPP-Ethereum
Vendor: Talos
Affected Version: Ethereum commit 4e1015743b95821849d001618a7ce82c7c073768

Exploitation Mechanism

Attackers exploit the vulnerability by sending crafted JSON requests to bypass the authorization mechanism and gain unauthorized access.

Mitigation and Prevention

Protect your systems from CVE-2017-12117 with these steps:

Immediate Steps to Take

Implement strict access controls and authentication mechanisms.
Monitor and filter incoming JSON requests for suspicious activities.
Apply security patches and updates promptly.

Long-Term Security Practices

Conduct regular security audits and assessments.
Educate users and developers on secure coding practices.

Patching and Updates

Stay informed about security advisories and updates from Talos and CPP-Ethereum.