CVE-2025-52925 in OneLogin Active Directory Connector
Summary
by MITRE • 07/02/2025
In One Identity OneLogin Active Directory Connector before 6.1.5, encryption of the DirectoryToken was mishandled, aka ST-812.
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Analysis
by VulDB Data Team • 07/02/2025
The vulnerability identified as CVE-2025-52925 affects the One Identity OneLogin Active Directory Connector version prior to 6.1.5, specifically addressing a critical flaw in the encryption handling of DirectoryToken elements. This issue represents a significant security weakness that undermines the confidentiality and integrity of authentication data flowing through the connector. The vulnerability stems from improper implementation of cryptographic operations within the connector's token management system, creating potential exposure points for sensitive authentication information.
The technical flaw manifests in the mishandled encryption process of DirectoryToken objects, which are essential components for authenticating users within the Active Directory environment. When the connector processes directory synchronization tasks, it generates and manages DirectoryToken elements that contain authentication credentials and user identity information. The improper encryption implementation means that these tokens may be stored, transmitted, or processed in an unencrypted state, or more likely, using weak cryptographic parameters that can be readily compromised. This vulnerability directly maps to CWE-310, which addresses cryptographic weaknesses in software implementations, particularly focusing on encryption algorithm failures and improper key management.
The operational impact of this vulnerability extends beyond simple data exposure, creating potential attack vectors for adversaries seeking to compromise identity infrastructure. An attacker who gains access to the connector environment or intercepts network traffic could potentially extract DirectoryToken information, which would then enable unauthorized access to Active Directory resources. This threat scenario aligns with ATT&CK technique T1566, specifically focusing on credential harvesting through phishing and social engineering, as the compromised tokens could be used to authenticate to directory services. The vulnerability particularly affects organizations relying on OneLogin for identity management, where the connector serves as a bridge between on-premises Active Directory and cloud-based identity services.
Organizations utilizing the affected OneLogin connector version face substantial risk of credential compromise and potential lateral movement within their network infrastructure. The vulnerability could enable attackers to escalate privileges, access sensitive directory information, and potentially gain control over critical system resources. The attack surface expands significantly when considering that DirectoryToken elements often contain user credentials, group memberships, and other sensitive identity attributes that are crucial for maintaining security boundaries within enterprise environments.
Mitigation strategies should prioritize immediate deployment of the OneLogin Active Directory Connector version 6.1.5 or later, which contains the necessary cryptographic fixes for DirectoryToken encryption. Security teams should also implement network monitoring to detect unusual traffic patterns related to the connector, particularly around authentication token processing and directory synchronization activities. Additional defensive measures include reviewing and strengthening key management practices, implementing network segmentation around the connector systems, and conducting comprehensive vulnerability assessments of the identity infrastructure. The remediation process should also involve verifying that all DirectoryToken elements are properly encrypted using industry-standard cryptographic protocols, specifically those meeting NIST SP 800-57 guidelines for key management and cryptographic algorithm selection. Organizations should also consider implementing additional authentication controls such as multi-factor authentication for critical directory services to reduce the impact of potential credential compromise.