CVE-2017-2637 : Vulnerability Insights and Analysis
Discover the critical CVE-2017-2637 affecting Red Hat OpenStack Platform director, allowing unauthorized access to virtual machines and host control. Learn about the impact, technical details, and mitigation steps.
A critical vulnerability in the Red Hat OpenStack Platform director's TripleO utilization allows unauthorized access to virtual machine instances and host control.
Understanding CVE-2017-2637
A flaw in the design of TripleO by the Red Hat OpenStack Platform director exposes libvirtd to potential exploitation.
What is CVE-2017-2637?
The vulnerability arises from the director deploying libvirtd with a default configuration that lacks authentication or encryption, enabling unauthorized access to virtual machines and host control.
The Impact of CVE-2017-2637
The vulnerability allows attackers to initiate a virsh session and potentially gain control over virtual machine instances or the host, compromising confidentiality and integrity.
Technical Details of CVE-2017-2637
The vulnerability is rated with a CVSS base score of 9.9, indicating critical severity.
Vulnerability Description
The flaw in TripleO's design allows unauthorized TCP connections to libvirtd, enabling control over virtual machines and potentially the host.
Affected Systems and Versions
- Product: Red Hat OpenStack Platform director
- Vendor: Red Hat
- Versions: Not applicable
Exploitation Mechanism
- Attack Complexity: Low
- Attack Vector: Network
- Privileges Required: Low
- User Interaction: None
- Scope: Changed
- Confidentiality Impact: High
- Integrity Impact: High
- Availability Impact: Low
Mitigation and Prevention
Immediate action is crucial to mitigate the risks posed by CVE-2017-2637.
Immediate Steps to Take
- Apply patches and updates provided by Red Hat.
- Restrict network access to libvirtd to trusted sources.
- Monitor network traffic for any suspicious activity.
Long-Term Security Practices
- Regularly update and patch all software components.
- Implement network segmentation to limit exposure to critical services.
- Conduct regular security audits and assessments.
Patching and Updates
- Red Hat has released security advisories (RHSA-2017:1546, RHSA-2017:1537, RHSA-2017:1242, RHSA-2017:1504) addressing CVE-2017-2637.