CVE-2017-12112 : Vulnerability Insights and Analysis
Discover the improper authorization vulnerability in CPP-Ethereum's JSON-RPC admin_addPeer API, allowing attackers to bypass authorization and access restricted functionality. Learn about the impact, affected systems, and mitigation steps.
This CVE-2017-12112 article provides insights into an improper authorization vulnerability in the admin_addPeer API of cpp-ethereum's JSON-RPC.
Understanding CVE-2017-12112
This CVE involves an authorization bypass vulnerability in CPP-Ethereum, affecting versions with the Ethereum commit 4e1015743b95821849d001618a7ce82c7c073768.
What is CVE-2017-12112?
An improper authorization vulnerability in the admin_addPeer API of cpp-ethereum's JSON-RPC allows attackers to bypass authorization and access restricted functionality by sending a JSON request.
The Impact of CVE-2017-12112
- 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
- Vector String: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:N/A:N
Technical Details of CVE-2017-12112
This section delves into the vulnerability description, affected systems, versions, and exploitation mechanism.
Vulnerability Description
The vulnerability in the admin_addPeer API of cpp-ethereum's JSON-RPC (commit 4e1015743b95821849d001618a7ce82c7c073768) enables unauthorized access to restricted functionality through a JSON request.
Affected Systems and Versions
- Product: CPP-Ethereum
- Vendor: Talos
- Affected Version: Ethereum commit 4e1015743b95821849d001618a7ce82c7c073768
Exploitation Mechanism
Attackers exploit this vulnerability by sending crafted JSON requests to bypass authorization and gain unauthorized access.
Mitigation and Prevention
Explore the immediate steps and long-term security practices to mitigate the CVE-2017-12112 vulnerability.
Immediate Steps to Take
- Implement network segmentation to limit access
- Apply the principle of least privilege
- Monitor and analyze JSON requests for anomalies
Long-Term Security Practices
- Regularly update and patch cpp-ethereum to address vulnerabilities
- Conduct security assessments and audits to identify and remediate weaknesses
Patching and Updates
- Stay informed about security patches and updates for cpp-ethereum
- Apply patches promptly to prevent exploitation of known vulnerabilities.