CVE-2022-2572 in Server
Summary
by MITRE • 11/01/2022
In affected versions of Octopus Server where access is managed by an external authentication provider, it was possible that the API key/keys of a disabled/deleted user were still valid after the access was revoked.
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Analysis
by VulDB Data Team • 05/26/2026
The vulnerability described in CVE-2022-2572 represents a critical access control flaw within Octopus Server's authentication management system. This issue specifically impacts organizations that rely on external authentication providers for user access control, creating a dangerous scenario where user privileges persist beyond their intended lifecycle. The flaw manifests when users are disabled or deleted from the system, yet their API keys remain functional, potentially allowing unauthorized access to critical infrastructure and deployment resources. This vulnerability directly violates fundamental security principles of least privilege and proper access revocation, creating a persistent backdoor that could be exploited by malicious actors who gain knowledge of these lingering credentials.
The technical nature of this vulnerability stems from improper synchronization between the external authentication provider's user lifecycle management and Octopus Server's internal API key validation mechanisms. When a user account is disabled or deleted in the external system, the Octopus Server fails to invalidate the corresponding API keys that were previously issued to that user. This represents a classic case of inadequate session management and credential lifecycle handling, which falls under CWE-613 (Insufficient Session Expiration) and CWE-285 (Improper Authorization). The root cause lies in the server's inability to maintain consistent state information between external authentication systems and its own credential store, creating a temporal window where revoked access remains valid.
The operational impact of this vulnerability extends far beyond simple credential exposure, potentially enabling attackers to execute deployments, access sensitive configuration data, and manipulate deployment pipelines. In enterprise environments where Octopus Server serves as a central deployment orchestrator, compromised API keys could provide attackers with the ability to deploy malicious code to production systems, access confidential environment variables, and bypass security controls. This vulnerability particularly affects organizations using external identity providers such as Active Directory, Azure AD, or other SAML/OAuth implementations, where the authentication and authorization systems are separated from the deployment management platform. The persistence of these invalid credentials creates a significant risk for privilege escalation attacks and could facilitate lateral movement within network environments.
Organizations should implement immediate mitigations including regular credential audits, automated API key lifecycle management processes, and enhanced monitoring of API key usage patterns. The recommended approach involves configuring the external authentication provider to immediately invalidate API keys upon user account changes, implementing automated cleanup procedures for disabled accounts, and establishing comprehensive logging of API key access events. Security teams should also consider implementing additional authentication controls such as multi-factor authentication for API access, limiting API key permissions to minimum required functionality, and establishing regular security assessments of the integration between external authentication systems and deployment platforms. This vulnerability aligns with ATT&CK technique T1078.004 (Valid Accounts: Cloud Accounts) and T1566.002 (Phishing: Spearphishing Attachments), as it creates persistent access vectors that could be exploited through credential compromise or social engineering attacks. Organizations should also review their incident response procedures to ensure they can quickly identify and remediate such credential persistence issues.