CVE-2021-3948 : Security Advisory and Response
CVE-2021-3948 impacts mig-controller with incorrect default permissions, enabling attackers to migrate malicious workloads to target clusters, compromising confidentiality, integrity, and availability.
An incorrect default permissions vulnerability was found in the mig-controller which could allow an attacker to migrate a malicious workload to the target cluster, impacting confidentiality, integrity, and availability of the services.
Understanding CVE-2021-3948
This section will cover the details of CVE-2021-3948, its impact, technical description, affected systems, exploitation mechanism, mitigation, and prevention methods.
What is CVE-2021-3948?
CVE-2021-3948 is an incorrect default permissions vulnerability found in the mig-controller. Attackers could exploit this vulnerability to migrate a malicious workload to the target cluster, affecting the services' confidentiality, integrity, and availability.
The Impact of CVE-2021-3948
The vulnerability could lead to unauthorized migration of malicious workloads to the target cluster, potentially compromising sensitive data, disrupting services, and causing availability issues.
Technical Details of CVE-2021-3948
This section will delve into the specific technical aspects of the vulnerability.
Vulnerability Description
The vulnerability in the mig-controller allows attackers to exploit incorrect default permissions, enabling them to migrate malicious workloads to the target cluster.
Affected Systems and Versions
The affected product is 'mig-controller' with versions 'konveyor/mig-controller release-1.5.2' and 'konveyor/mig-controller release-1.6.3'.
Exploitation Mechanism
Attackers can exploit this vulnerability by improperly handling cluster namespaces, facilitating the migration of malicious workloads to the target cluster.
Mitigation and Prevention
This section will outline the steps to mitigate and prevent exploitation of CVE-2021-3948.
Immediate Steps to Take
Organizations should implement access controls, regularly monitor for unauthorized activities, and restrict permissions to prevent unauthorized migration of workloads.
Long-Term Security Practices
Employing least privilege principles, conducting regular security audits, and staying informed about security updates and patches can mitigate risks associated with this vulnerability.
Patching and Updates
Ensure that the mig-controller software is regularly updated to the latest secure version to patch known vulnerabilities, including CVE-2021-3948.