CVE-2024-42222 in CloudStack
Summary
by MITRE • 08/07/2024
In Apache CloudStack 4.19.1.0, a regression in the network listing API allows unauthorised list access of network details for domain admin and normal user accounts. This vulnerability compromises tenant isolation, potentially leading to unauthorised access to network details, configurations and data.
Affected users are advised to upgrade to version 4.19.1.1 to address this issue. Users on older versions of CloudStack considering to upgrade, can skip 4.19.1.0 and upgrade directly to 4.19.1.1.
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Analysis
by VulDB Data Team • 08/29/2024
The vulnerability identified as CVE-2024-42222 represents a critical authorization bypass flaw within Apache CloudStack version 4.19.1.0 that fundamentally undermines the security model of cloud infrastructure deployments. This regression in the network listing API functionality creates a pathway for unauthorized access to sensitive network information that should be restricted to specific user roles. The flaw specifically affects domain administrators and regular user accounts, creating a scenario where users can enumerate network details that they should not have access to based on their security permissions. The technical implementation of this vulnerability stems from improper access control validation within the API layer that governs network resource discovery and listing operations.
The operational impact of this vulnerability extends beyond simple information disclosure to compromise the fundamental principle of tenant isolation that cloud environments depend upon for security. When unauthorized users can access network details, configurations, and associated data, they gain insights into network topology, resource allocation, and potentially sensitive infrastructure information that could be leveraged for further attacks. This vulnerability directly violates the principle of least privilege and creates opportunities for reconnaissance activities that could lead to more sophisticated exploitation attempts. The regression suggests that a recent code change or update inadvertently removed or weakened access control mechanisms that were previously in place to protect network information.
This vulnerability aligns with CWE-284, which addresses improper access control issues, and maps to ATT&CK technique T1046 Network Service Scanning, as the affected API could enable attackers to gather network topology information. The flaw specifically impacts the network listing functionality within CloudStack's API framework, where authentication and authorization checks fail to properly validate user permissions before returning network configuration data. The vulnerability represents a significant downgrade in security posture that affects all deployments running version 4.19.1.0, regardless of their specific network configurations or security policies.
Organizations utilizing Apache CloudStack must immediately implement the recommended upgrade path to version 4.19.1.1 to remediate this vulnerability. The upgrade process should be carefully planned to ensure minimal disruption to existing services while addressing the access control regression. Security teams should conduct thorough assessments of their network configurations to identify any potential exploitation attempts that may have occurred during the vulnerable period. Additionally, organizations should implement monitoring controls to detect unusual API access patterns that could indicate attempts to exploit this vulnerability. The recommended mitigation strategy emphasizes the importance of maintaining current software versions and implementing proper change management processes to prevent similar regressions in the future, as this issue demonstrates how seemingly minor code changes can create significant security implications in cloud infrastructure platforms.
The presence of this vulnerability in version 4.19.1.0 highlights the critical importance of comprehensive testing and validation processes for security-sensitive code changes in cloud platforms. Organizations should establish robust security validation procedures that include access control testing, authorization boundary verification, and comprehensive regression testing to prevent similar issues from affecting their cloud deployments. This vulnerability serves as a reminder that cloud security depends heavily on proper implementation of access control mechanisms and that even minor regressions can create significant security risks in multi-tenant environments.