CVE-2024-7319 is a vulnerability identified in OpenStack Heat, the orchestration component of the OpenStack cloud platform. This issue arises due to an incomplete remediation of a prior vulnerability, CVE-2023-1625. Specifically, when the stack abandon command is executed with the 'hidden' feature enabled (set to True), sensitive information may be inadvertently exposed to unauthorized actors. The vulnerability requires network access (AV:N), low attack complexity (AC:L), and privileges (PR:L), but no user interaction (UI:N). The scope is changed (S:C), indicating that the vulnerability can affect resources beyond the initially vulnerable component. The CVSS v3.1 base score is 5.0, reflecting a medium severity primarily due to the potential confidentiality impact without affecting integrity or availability. No public exploits have been reported yet. The vulnerability highlights the risk of incomplete patches and the importance of thorough validation of fixes in complex cloud orchestration environments. OpenStack Heat users should review their deployment configurations, especially usage of the stack abandon command with hidden features, and monitor for updates or patches from maintainers.

For European organizations, this vulnerability poses a risk of sensitive information leakage within cloud environments managed by OpenStack Heat. Such information disclosure could include configuration details, credentials, or other operational data that attackers could leverage for further attacks or lateral movement. Organizations relying on OpenStack Heat for critical infrastructure orchestration, particularly in sectors like finance, telecommunications, and government, may face increased risk of data breaches or compliance violations under GDPR if sensitive personal or operational data is exposed. Although the vulnerability does not directly impact system integrity or availability, the confidentiality breach could undermine trust and lead to secondary attacks. The requirement for some privilege level limits the attack surface to insiders or compromised accounts, but the network accessibility means remote attackers with credentials could exploit it. Given the widespread use of OpenStack in European cloud providers and enterprises, the impact could be significant if unmitigated.

European organizations should immediately audit their OpenStack Heat deployments to identify usage of the stack abandon command with the hidden feature enabled. They should apply any available patches or updates from OpenStack or their Linux distribution vendors addressing CVE-2024-7319. If patches are not yet available, temporarily disabling or restricting the use of the stack abandon command, especially with the hidden flag, is recommended. Implement strict access controls and monitoring on accounts with privileges to execute orchestration commands to detect and prevent unauthorized use. Employ network segmentation and limit network exposure of OpenStack Heat APIs to trusted management networks. Regularly review and update incident response plans to include potential information disclosure scenarios. Additionally, validate that previous fixes for CVE-2023-1625 are correctly applied and tested to avoid incomplete remediation.