CVE-2024-21638 : Security Advisory and Response

This CVE, assigned to "Azure IPAM solution Elevation of Privilege Vulnerability", highlights a critical security issue that affects Azure IPAM (IP Address Management) solution, impacting versions below 3.0.0.

Understanding CVE-2024-21638

This vulnerability, identified as CWE-269: Improper Privilege Management, poses a significant risk with a base severity level of "Critical" and a CVSSv3 base score of 9.1.

What is CVE-2024-21638?

Azure IPAM is a lightweight solution developed on the Azure platform for managing IP Address space. Prior to version 3.0.0, the solution lacked proper validation of authentication tokens, potentially allowing attackers to impersonate privileged users, leading to an elevation of privilege.

The Impact of CVE-2024-21638

The vulnerability could enable unauthorized access to data stored within the IPAM instance and Azure, compromising confidentiality and integrity with high impacts.

Technical Details of CVE-2024-21638

This section provides insights into the vulnerability's description, affected systems, and the exploitation mechanism.

Vulnerability Description

The absence of authentication token validation in Azure IPAM could allow attackers to impersonate privileged users and gain unauthorized access to sensitive data, resulting in an elevation of privilege.

Affected Systems and Versions

Azure IPAM versions below 3.0.0 are affected by this vulnerability, requiring immediate attention to mitigate the risk of exploitation.

Exploitation Mechanism

Attackers can exploit this vulnerability by leveraging the lack of authentication token validation to impersonate privileged users and gain unauthorized access to sensitive data within the IPAM instance and Azure.

Mitigation and Prevention

Protecting against CVE-2024-21638 requires a multi-faceted approach comprising immediate actions and long-term security practices.

Immediate Steps to Take

Upgrade to Azure IPAM version 3.0.0 or above to ensure the vulnerability is patched.
Monitor access logs and anomalous activities within the IPAM solution to detect any unauthorized access attempts.

Long-Term Security Practices

Implement stringent access control policies to restrict user privileges within the IPAM solution.
Regularly review and update security configurations for Azure IPAM to mitigate potential vulnerabilities proactively.

Patching and Updates

Stay informed about security advisories and updates related to Azure IPAM to apply patches promptly and maintain a secure environment.