CVE-2022-33650 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-2022-33651, CVE-2022-33652, 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.
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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 vault functionality and represents a significant security gap in Microsoft's cloud infrastructure protection mechanisms. The flaw enables malicious actors who have gained initial access to a recovery services vault to potentially elevate their privileges to that of a global administrator or service administrator, thereby gaining unrestricted access to all resources within the associated Azure subscription. This vulnerability directly impacts the principle of least privilege that is fundamental to cloud security architecture and represents a serious concern for organizations relying on Azure Site Recovery for disaster recovery operations.
The technical implementation of this vulnerability stems from improper access control mechanisms within the Azure Site Recovery service. Attackers can exploit this weakness by leveraging legitimate administrative functions within the recovery services vault to manipulate access controls and permissions. The flaw exists in the way the service validates and enforces access restrictions during privilege escalation operations, allowing unauthorized users to bypass normal authentication and authorization checks. This type of vulnerability falls under the CWE-284 access control weakness category, specifically addressing improper access control in cloud environments where service-level privileges can be abused. The vulnerability requires an attacker to first obtain valid credentials to access the recovery services vault, but once achieved, the privilege escalation can be accomplished through manipulation of service APIs and administrative interfaces.
The operational impact of this vulnerability extends far beyond simple privilege escalation, as it fundamentally compromises the security boundaries of Azure environments. Organizations utilizing Azure Site Recovery for critical backup and disaster recovery operations face severe risks when this vulnerability is exploited, as attackers could potentially access all data protected by the recovery services vault. The implications include potential data breaches, unauthorized access to production systems, and complete compromise of the cloud infrastructure. This vulnerability also creates opportunities for attackers to establish persistent access, deploy malicious software, or conduct lateral movement attacks within the Azure environment. The attack vector typically involves an authenticated session with sufficient privileges to interact with the recovery services vault, followed by exploitation of the access control bypass mechanism to escalate privileges. According to ATT&CK framework, this vulnerability maps to privilege escalation techniques under the T1068 category, specifically targeting cloud service management interfaces.
Mitigation strategies for this vulnerability require immediate patching of affected Azure Site Recovery components and implementation of additional security controls. Microsoft has released security updates to address this specific flaw, and organizations should prioritize deployment of these patches across all affected environments. In addition to patch management, security teams should implement network segmentation and monitoring of recovery services vault activities to detect potential exploitation attempts. The recommended approach includes enabling Azure Activity Log monitoring for recovery services vault operations, implementing strict access controls through Azure Role-Based Access Control, and regularly auditing administrative activities within the Azure environment. Organizations should also consider implementing just-in-time access controls and multi-factor authentication for administrative accounts to reduce the attack surface. The vulnerability highlights the importance of continuous security monitoring and regular vulnerability assessments in cloud environments, particularly for mission-critical services like disaster recovery systems that maintain access to sensitive organizational data and infrastructure components.