CVE-2017-9942 in SiPass integrated
Summary
by MITRE
A vulnerability was discovered in Siemens SiPass integrated (All versions before V2.70) that could allow an attacker with local access to the SiPass integrated server or SiPass integrated client to potentially obtain credentials from the systems.
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Analysis
by VulDB Data Team • 12/15/2022
The vulnerability identified as CVE-2017-9942 represents a critical security flaw in Siemens SiPass integrated access control systems affecting all versions prior to V2.70. This vulnerability resides within the authentication and credential handling mechanisms of the system, creating a significant risk for organizations relying on Siemens access control infrastructure. The flaw specifically targets the way credentials are stored and processed within the SiPass integrated environment, potentially exposing sensitive authentication information to unauthorized parties.
This vulnerability stems from inadequate credential protection measures within the SiPass integrated software architecture, allowing local attackers to exploit weaknesses in the system's credential management processes. The technical flaw manifests when an attacker gains local access to either the SiPass integrated server or client components, enabling them to extract stored credentials through various exploitation techniques. The vulnerability is classified under CWE-255 Credentials Management Vulnerability, which encompasses issues related to improper handling of authentication credentials. The attack vector requires local system access, making it particularly concerning for environments where physical or administrative access controls may be insufficient.
The operational impact of CVE-2017-9942 extends beyond simple credential theft, potentially enabling attackers to gain unauthorized access to controlled facilities and systems. Once credentials are obtained, attackers can escalate their privileges and move laterally within the network, leveraging the stolen authentication information to compromise additional systems. This vulnerability directly aligns with ATT&CK technique T1078 Valid Accounts, where adversaries use legitimate credentials to establish and maintain access to systems. The compromise of access control systems creates cascading security risks throughout the organization, as these credentials often provide access to critical infrastructure and sensitive areas.
Organizations affected by this vulnerability should immediately implement comprehensive mitigation strategies including mandatory system updates to version 2.70 or later, which contain the necessary security patches to address the credential handling flaw. Network segmentation and access control measures should be strengthened to limit local system access to authorized personnel only, implementing principle of least privilege configurations. Regular security audits and monitoring of system logs should be conducted to detect potential exploitation attempts, with particular attention to unusual credential access patterns. The vulnerability also underscores the importance of maintaining current security patches and implementing robust change management processes to ensure timely deployment of security updates across all critical infrastructure components.