CVE-2017-5936 Explained : Impact and Mitigation
Learn about CVE-2017-5936 affecting OpenStack Nova-LXD before 13.1.1. Discover the impact, affected systems, exploitation, and mitigation steps to secure your systems.
OpenStack Nova-LXD before version 13.1.1 incorrectly names veth pairs when applying Neutron security group rules, allowing remote attackers to bypass security restrictions.
Understanding CVE-2017-5936
OpenStack Nova-LXD vulnerability with incorrect nomenclature for veth pairs.
What is CVE-2017-5936?
- OpenStack Nova-LXD pre-13.1.1 uses incorrect veth pair names, enabling attackers to bypass security rules.
The Impact of CVE-2017-5936
- Remote attackers can circumvent intended security restrictions.
Technical Details of CVE-2017-5936
OpenStack Nova-LXD vulnerability details.
Vulnerability Description
- Incorrect naming of veth pairs in OpenStack Nova-LXD before version 13.1.1.
Affected Systems and Versions
- OpenStack Nova-LXD versions prior to 13.1.1.
Exploitation Mechanism
- Attackers exploit the incorrect veth pair naming to bypass security group rules.
Mitigation and Prevention
Protecting systems from CVE-2017-5936.
Immediate Steps to Take
- Update OpenStack Nova-LXD to version 13.1.1 or newer.
- Monitor network traffic for suspicious activities.
Long-Term Security Practices
- Regularly review and update security configurations.
- Implement network segmentation to limit attack surfaces.
Patching and Updates
- Apply patches and updates provided by OpenStack to fix the vulnerability.