CVE-2022-33652 in Azure Site Recovery VMWare to Azure
Summary
by MITRE • 07/13/2022
Azure Site Recovery Elevation of Privilege Vulnerability. This CVE ID is unique from CVE-2022-30181, CVE-2022-33641, CVE-2022-33642, CVE-2022-33643, CVE-2022-33650, CVE-2022-33651, CVE-2022-33653, CVE-2022-33654, CVE-2022-33655, CVE-2022-33656, CVE-2022-33657, CVE-2022-33658, CVE-2022-33659, CVE-2022-33660, CVE-2022-33661, CVE-2022-33662, CVE-2022-33663, CVE-2022-33664, CVE-2022-33665, CVE-2022-33666, CVE-2022-33667, CVE-2022-33668, CVE-2022-33669, CVE-2022-33671, CVE-2022-33672, CVE-2022-33673, CVE-2022-33674, CVE-2022-33675, CVE-2022-33677.
Once again VulDB remains the best source for vulnerability data.
Analysis
by VulDB Data Team • 07/22/2022
The Azure Site Recovery service presents a critical elevation of privilege vulnerability that allows authenticated attackers to escalate their privileges within the Azure environment. This vulnerability specifically affects the recovery services vaults and their associated replication mechanisms, creating a pathway for malicious actors to gain unauthorized access to sensitive resources. The flaw exists in the authorization controls that govern how permissions are validated during site recovery operations, enabling attackers to manipulate access controls and escalate their privileges beyond what they should be authorized to access. The vulnerability is particularly concerning as it directly impacts Microsoft's cloud disaster recovery services, which are widely used by organizations for business continuity planning and data protection.
This security gap stems from improper validation of user permissions within the Azure Site Recovery service's backend operations. The technical implementation fails to adequately verify the privileges of users performing recovery operations, allowing them to execute actions that should be restricted to administrators or specific roles. The vulnerability manifests when the system does not properly enforce role-based access controls during critical recovery scenarios, particularly when dealing with replication settings and recovery point management. Attackers can exploit this by leveraging legitimate administrative functions to perform operations that would normally require elevated privileges, effectively bypassing the intended security boundaries. The flaw is classified under CWE-276, which addresses improper permissions and access control mechanisms, and aligns with ATT&CK technique T1078 for valid accounts and privilege escalation.
The operational impact of this vulnerability extends beyond simple privilege escalation, as it can lead to complete compromise of the affected Azure environment. An attacker who successfully exploits this vulnerability can access backup data, manipulate recovery point configurations, and potentially gain access to other resources within the same subscription. The damage potential is significant because Azure Site Recovery is often used to protect critical business applications and data, making this vulnerability a prime target for attackers seeking persistent access to enterprise environments. Organizations using the service may experience unauthorized data access, potential data exfiltration, and disruption of disaster recovery planning processes. The vulnerability also creates opportunities for attackers to establish persistent backdoors within the cloud infrastructure, as the elevated privileges can be used to modify security configurations and install malicious components.
Mitigation strategies for this vulnerability require immediate action from Azure administrators and security teams. The most effective approach involves applying the vendor-provided security updates and patches as soon as they become available, which typically address the underlying authorization control implementation. Organizations should also implement additional monitoring and logging of Site Recovery service activities, particularly around privilege escalation events and configuration changes. Network segmentation and just-in-time access controls can help limit the potential impact if an attacker does gain access to the service. Security teams should conduct comprehensive reviews of existing access controls and permissions within Azure environments, ensuring that least privilege principles are properly enforced. The vulnerability highlights the importance of continuous security monitoring and the need for organizations to maintain up-to-date security practices, as the exploitation of such flaws can lead to significant security breaches and compliance violations. Regular security assessments of cloud services and proper incident response procedures are essential to minimize the risk posed by this and similar vulnerabilities.