CVE-2018-0268 : Security Advisory and Response
Learn about CVE-2018-0268, a vulnerability in Cisco Digital Network Architecture (DNA) Center that allows unauthorized remote attackers to bypass authentication and gain elevated privileges. Find out about affected systems, exploitation risks, and mitigation steps.
A vulnerability in the container management subsystem of Cisco Digital Network Architecture (DNA) Center allows an unauthenticated remote attacker to bypass authentication and gain elevated privileges. This weakness stems from an insecure default configuration of the Kubernetes container management subsystem within DNA Center, potentially leading to a complete compromise of affected containers.
Understanding CVE-2018-0268
This CVE involves a security flaw in the container management subsystem of Cisco DNA Center, impacting specific software releases.
What is CVE-2018-0268?
The vulnerability in Cisco DNA Center could enable unauthorized remote attackers to bypass authentication and acquire elevated privileges. The issue arises from an insecure default configuration of the Kubernetes container management subsystem within DNA Center, allowing attackers to execute commands with elevated privileges in provisioned containers.
The Impact of CVE-2018-0268
Exploiting this vulnerability may result in a complete takeover of affected containers, posing a significant security risk to the system.
Technical Details of CVE-2018-0268
This section provides detailed technical information about the vulnerability.
Vulnerability Description
The vulnerability allows unauthenticated remote attackers to bypass authentication and gain elevated privileges due to an insecure default configuration of the Kubernetes container management subsystem within DNA Center.
Affected Systems and Versions
- Cisco DNA Center Software Releases 1.1.3 and earlier
Exploitation Mechanism
- Attackers gaining access to the Kubernetes service port can execute commands with elevated privileges within provisioned containers, potentially leading to a complete compromise of affected containers.
Mitigation and Prevention
Protective measures and actions to mitigate the impact of CVE-2018-0268.
Immediate Steps to Take
- Apply security patches provided by Cisco promptly
- Monitor network traffic for any suspicious activity
- Restrict access to the Kubernetes service port
Long-Term Security Practices
- Regularly update and patch all software and systems
- Implement strong authentication mechanisms and access controls
- Conduct regular security audits and assessments
Patching and Updates
- Cisco has released patches to address this vulnerability. Ensure timely installation of these patches to secure the system.