CVE-2022-33677 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-2022-33652, 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.
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Analysis
by VulDB Data Team • 07/23/2022
The Azure Site Recovery service represents a critical component within Microsoft's cloud infrastructure for disaster recovery operations, enabling organizations to replicate and recover virtual machines across different regions or on-premises environments. This vulnerability specifically targets the privilege escalation mechanisms within the Azure Site Recovery service, creating a potential pathway for unauthorized users to gain elevated access rights beyond their intended permissions. The flaw exists within the service's authorization and authentication processes, allowing attackers to manipulate access controls and potentially compromise the entire recovery infrastructure. Such vulnerabilities are particularly concerning in cloud environments where recovery services often contain sensitive operational data and system access credentials that could be leveraged for broader network infiltration.
The technical implementation of this elevation of privilege vulnerability stems from insufficient input validation and improper access control enforcement within the Azure Site Recovery service components. Attackers can exploit this weakness by crafting malicious requests that bypass normal authorization checks, effectively allowing them to escalate their privileges from standard user access to administrative levels. The vulnerability manifests when the service fails to properly validate user credentials or session tokens during privilege escalation operations, creating a gap in the security model that malicious actors can exploit. This flaw typically involves the manipulation of API calls or service endpoints that handle privilege modification requests, where the system does not adequately verify the authenticity or authorization level of the requesting entity before granting elevated permissions.
The operational impact of this vulnerability extends beyond simple privilege escalation, potentially enabling attackers to access sensitive recovery data, manipulate replication settings, and compromise the integrity of disaster recovery operations. Organizations relying on Azure Site Recovery for business continuity planning face significant risk if this vulnerability is exploited, as attackers could potentially disrupt recovery processes, access confidential backup data, or even use the elevated privileges to pivot to other systems within the Azure environment. The vulnerability's impact is particularly severe given that Site Recovery services often contain credentials for multiple systems and may serve as a gateway to broader cloud infrastructure access, making it a prime target for attackers seeking persistent access to enterprise environments.
Mitigation strategies for this vulnerability require immediate implementation of Microsoft's security patches and updates to the Azure Site Recovery service components. Organizations should also implement additional monitoring and logging controls to detect anomalous privilege escalation attempts, leveraging Azure's built-in security features such as Azure Activity Logs and Security Center alerts. Network segmentation and principle of least privilege access controls should be enforced to limit the potential damage from any successful exploitation attempts. The vulnerability aligns with CWE-284, which addresses improper access control in software systems, and represents a clear violation of the principle of least privilege as defined in the MITRE ATT&CK framework. Organizations should conduct comprehensive security assessments of their Site Recovery configurations and review all access controls to ensure that only authorized personnel maintain administrative privileges within the recovery infrastructure, particularly focusing on the authentication mechanisms that handle privilege escalation requests.