CVE-2017-12113 : Security Advisory and Response
Learn about CVE-2017-12113, an authorization bypass vulnerability in CPP-Ethereum's admin_nodeInfo API, allowing unauthorized access. Discover impact, affected systems, and mitigation steps.
This CVE-2017-12113 article provides insights into a vulnerability in the admin_nodeInfo API of cpp-ethereum's JSON-RPC, its impact, technical details, and mitigation steps.
Understanding CVE-2017-12113
This CVE involves an authorization bypass vulnerability in CPP-Ethereum, affecting versions including Ethereum commit 4e1015743b95821849d001618a7ce82c7c073768.
What is CVE-2017-12113?
An improper authorization vulnerability in cpp-ethereum's JSON-RPC admin_nodeInfo API allows attackers to bypass authorization and access restricted functionality by sending a crafted JSON request.
The Impact of CVE-2017-12113
- CVSS Base Score: 4 (Medium Severity)
- Attack Vector: Network
- Attack Complexity: High
- Confidentiality Impact: Low
- Integrity Impact: None
- Privileges Required: None
- Scope: Changed
- User Interaction: None
Technical Details of CVE-2017-12113
This section delves into the vulnerability description, affected systems, and exploitation mechanism.
Vulnerability Description
The vulnerability in the admin_nodeInfo API of cpp-ethereum's JSON-RPC allows unauthorized access to restricted functionality, enabling an attacker to bypass authorization.
Affected Systems and Versions
- Product: CPP-Ethereum
- Vendor: Talos
- Affected Version: Ethereum commit 4e1015743b95821849d001618a7ce82c7c073768
Exploitation Mechanism
Attackers can exploit this vulnerability by sending a specially crafted JSON request to trigger the unauthorized access.
Mitigation and Prevention
Explore immediate steps and long-term security practices to mitigate the risks associated with CVE-2017-12113.
Immediate Steps to Take
- Implement network controls to restrict access to vulnerable APIs.
- Monitor and analyze JSON requests for any suspicious activity.
- Apply security patches or updates provided by the vendor.
Long-Term Security Practices
- Conduct regular security assessments and audits to identify vulnerabilities.
- Educate developers and administrators on secure coding practices.
- Employ strong authentication mechanisms to prevent unauthorized access.
Patching and Updates
- Stay informed about security advisories from Talos and apply patches promptly to address known vulnerabilities.