CVE-2018-0094 : Exploit Details and Defense Strategies
Learn about CVE-2018-0094, a vulnerability in Cisco UCS Central Software allowing unauthorized remote attackers to exploit IPv6 packet processing, potentially leading to a denial of service (DoS) attack. Find out how to mitigate and prevent this security issue.
Cisco UCS Central Software vulnerability in handling IPv6 packets leading to a denial of service (DoS) attack.
Understanding CVE-2018-0094
A weakness in Cisco UCS Central Software allows unauthorized remote attackers to exploit IPv6 packet processing, causing a DoS situation by overwhelming CPU usage.
What is CVE-2018-0094?
The vulnerability in Cisco UCS Central Software enables attackers to flood the system with IPv6 packets, disrupting the device's CPU and resources, potentially leading to a DoS scenario.
The Impact of CVE-2018-0094
- Unauthorized remote attackers can exploit the vulnerability without authentication
- Denial of service (DoS) situation due to high CPU utilization
- Lack of adequate protection for limiting incoming IPv6 traffic
- Attackers can disrupt targeted devices by flooding them with high volumes of IPv6 packets
Technical Details of CVE-2018-0094
A vulnerability in IPv6 packet processing in Cisco UCS Central Software allows for a DoS attack due to insufficient rate limiting protection.
Vulnerability Description
- Lack of rate limiting protection for IPv6 ingress traffic
- Exploitable by sending a high rate of IPv6 packets to the affected device
Affected Systems and Versions
- Product: Cisco UCS Central Software
- Version: Cisco UCS Central Software
Exploitation Mechanism
- Attackers flood the affected device with a high volume of IPv6 packets
- Successful exploitation disrupts the device by overwhelming its CPU and resources
Mitigation and Prevention
Immediate Steps to Take:
- Apply vendor-provided patches and updates
- Implement network traffic monitoring to detect and block malicious IPv6 traffic
Long-Term Security Practices:
- Regularly update and patch software and firmware
- Conduct security assessments and penetration testing to identify vulnerabilities
- Implement network segmentation and access controls
- Educate users on security best practices
- Monitor network traffic for anomalies and suspicious activities
- Employ intrusion detection and prevention systems
- Stay informed about security advisories and alerts
- Consider implementing DoS protection mechanisms
- Engage in threat intelligence sharing and collaboration
Patching and Updates
- Apply the patches provided by Cisco to address the vulnerability