Microsoft Azure Automation CVE-2025-29827 Elevation of Privilege Vulnerability Advisory

Vulnerability Overview Vulnerability Name: Azure Automation Elevation of Privilege Vulnerability (CVE-2025-29827) CVSS Score: 9.9 Description: This vulnerability allows an attacker with access permissions to their own Azure Automation account to breach trust boundaries and impersonate the automation identity of another tenant. This enables them to create or modify automation scripts, access sensitive configuration data or credentials stored within the Azure Automation account, and create, alter, or delete cross-organization cloud workload resources. Impact Scope Affected Services: Microsoft Azure Automation service Default Configuration Issue: By default, Azure Automation accounts are publicly accessible, which can expose account identities. Potential Risk: Attackers can leverage this vulnerability to access other accounts, thereby obtaining elevated privileges in the cloud environment. Remediation Microsoft Response: Microsoft has issued a security advisory recommending that organizations avoid exposing any resources publicly unless strictly necessary. Recommended Actions: - Audit the scope of identities and tokens assigned to cloud automation accounts. - Avoid exposing any content externally unless there is a specific business need. - The most effective way to mitigate risk is to audit the scope of identities and tokens. Related Vulnerabilities AutoWarp Vulnerability: In 2021, researchers from Orca Security discovered a similar vulnerability that allowed extraction of managed identity tokens from shared sandbox servers. Microsoft publicly disclosed this issue in March 2022, stating that no evidence of exploitation had been detected. Additional Information Research Background: Shay Shavit and his research team targeted Azure Automation because its accounts often contain privileged identities. They successfully breached the trust boundary between the service and these identities. Future Plans: Shay Shavit plans to present findings on how default configurations pose risks to Microsoft and its customers at the Black Hat USA conference. Summary This is a critical security vulnerability that can lead to identity exposure and privilege escalation in cloud environments. While Microsoft has taken steps to remediate the vulnerability, organizations must implement additional measures to ensure security.

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Microsoft Azure Automation CVE-2025-29827 Elevation of Privilege Vulnerability Advisory