CVE-2019-9158 in DS3 Authentication Server
Summary
by MITRE
Gemalto DS3 Authentication Server 2.6.1-SP01 has Broken Access Control.
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Analysis
by VulDB Data Team • 09/28/2023
The vulnerability identified as CVE-2019-9158 affects the Gemalto DS3 Authentication Server version 2.6.1-SP01 and represents a critical broken access control flaw that undermines the security posture of the authentication infrastructure. This vulnerability resides within the server's authorization mechanisms and allows unauthorized access to protected resources through improper validation of user permissions and access rights. The affected system operates as a critical component in enterprise authentication environments where it manages user credentials and access control policies for various networked services.
The technical implementation of this broken access control vulnerability stems from insufficient input validation and inadequate privilege checking within the server's authentication and authorization modules. Attackers can exploit this weakness to bypass normal access restrictions and gain elevated privileges or access to restricted administrative functions. The flaw typically manifests when the system fails to properly verify user credentials against established access control lists or when it accepts manipulated authentication tokens without proper validation. This type of vulnerability commonly maps to CWE-284 which describes improper access control conditions and aligns with ATT&CK technique T1078 which covers valid accounts and legitimate credentials.
The operational impact of this vulnerability extends beyond simple unauthorized access to encompass potential complete system compromise and data breaches within organizations relying on the Gemalto DS3 Authentication Server. An attacker who successfully exploits this vulnerability could gain administrative access to the authentication server, potentially allowing them to modify user accounts, create new administrator privileges, or even extract sensitive authentication data from the system. The consequences include unauthorized access to protected corporate resources, disruption of authentication services, and potential lateral movement within the network infrastructure. Organizations using this authentication server may experience significant security incidents including credential theft, unauthorized system modifications, and compromised user authentication integrity.
Mitigation strategies for CVE-2019-9158 should prioritize immediate deployment of vendor-provided patches and updates to the Gemalto DS3 Authentication Server software. System administrators must conduct thorough vulnerability assessments to identify all instances of the affected software and ensure proper patch management procedures are implemented. Network segmentation and firewall rules should be configured to limit direct access to the authentication server from untrusted networks while implementing strict access controls for administrative interfaces. Additionally, organizations should enhance monitoring capabilities to detect unusual authentication patterns or unauthorized access attempts that may indicate exploitation of this vulnerability. The implementation of multi-factor authentication mechanisms and regular security audits of authentication systems provides additional defense layers against exploitation attempts targeting this broken access control flaw.