Azure Stack Hub Informationsweitergabe-Schwachstelle

Successful exploitation of CVE-2025-53793 could lead to the exposure of confidential data stored or processed within the Azure Stack Hub environment. An attacker who gains unauthorized access could potentially retrieve sensitive information such as user credentials, configuration details, or even application data. The scope of the data exposed would depend on the attacker's access level and the specific information accessible within the compromised system. While the description doesn't specify a direct path to lateral movement, the disclosure of credentials could facilitate such actions within the Azure Stack Hub infrastructure or connected networks. The blast radius extends to any systems or services that rely on the confidentiality of data handled by Azure Stack Hub.

Organizations deploying Azure Stack Hub, particularly those utilizing older versions (1.0.0–1.2501.1.47), are at risk. Environments with relaxed authentication policies or inadequate network segmentation are especially vulnerable. Shared hosting environments leveraging Azure Stack Hub may also be impacted if proper isolation measures are not in place.

• .NET: Monitor Azure Stack Hub logs for unusual authentication attempts or access patterns. Use Azure Monitor to create alerts for suspicious activity. • .NET: Use Sysinternals tools like Process Monitor to observe network connections and file access attempts by Azure Stack Hub processes. • .NET: Review Azure Stack Hub security logs for failed login attempts and unauthorized access events. • .NET: Examine Azure Stack Hub configuration files for any signs of tampering or unauthorized modifications.

1. 2025-08-12Disclosure

   disclosure

1. Reserviert2025-07-09
2. Veröffentlicht2025-08-12
3. Geändert2026-02-13
4. EPSS aktualisiert2026-03-23

The primary mitigation for CVE-2025-53793 is to upgrade Azure Stack Hub to version 1.2501.1.47 or later. Prior to upgrading, it's crucial to review Microsoft's official documentation for compatibility and potential breaking changes. Consider performing a test upgrade in a non-production environment first to validate the upgrade process and application functionality. While no specific WAF or proxy rules are mentioned, implementing network segmentation and strict access controls can help limit the potential impact of a successful attack. Regularly review Azure Stack Hub's security configuration and ensure adherence to security best practices.