CVE-2019-18286 in SPPA-T3000 Application Server
Summary
by MITRE
A vulnerability has been identified in SPPA-T3000 Application Server (All versions). The Application Server exposes directory listings and files containing sensitive information. This vulnerability is independent from CVE-2019-18287. Please note that an attacker needs to have access to the Application Highway in order to exploit this vulnerability. At the time of advisory publication no public exploitation of this security vulnerability was known.
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Analysis
by VulDB Data Team • 03/11/2024
The vulnerability identified as CVE-2019-18286 affects the SPPA-T3000 Application Server, a critical component in industrial automation environments where operational technology systems interface with enterprise networks. This vulnerability represents a significant information disclosure risk that could potentially compromise the security posture of industrial control systems. The SPPA-T3000 platform serves as a bridge between process automation systems and enterprise information systems, making it a prime target for attackers seeking to gather intelligence about industrial infrastructure. The vulnerability specifically manifests through exposed directory listings and files containing sensitive information, creating an attack surface that could be leveraged by threat actors with access to the Application Highway network segment. The affected system operates within the context of industrial control environments where security is paramount due to the potential for operational disruptions and safety hazards.
The technical flaw underlying CVE-2019-18286 stems from improper configuration and lack of access controls within the Application Server implementation. When directory listings are exposed, attackers can enumerate files and directories without proper authentication or authorization, potentially revealing sensitive data such as configuration files, system logs, user credentials, or application source code. This represents a classic information disclosure vulnerability that allows unauthorized access to data that should remain protected within the industrial environment. The vulnerability is categorized under CWE-540 as exposure of sensitive information through directory listing, which is a well-documented weakness in web application security. The fact that the vulnerability requires access to the Application Highway network segment indicates that it operates at the network boundary level where industrial systems connect to enterprise networks, creating a potential pathway for attackers to escalate their access from the perimeter into the core industrial control systems.
The operational impact of this vulnerability extends beyond simple information disclosure, as it provides attackers with valuable reconnaissance data that could be used for subsequent attacks within the industrial control environment. The exposed sensitive information could include system configurations, network topology details, user account information, or even application-specific data that could aid in crafting more sophisticated attacks. This vulnerability particularly affects industrial environments where the SPPA-T3000 serves as a critical interface component, making it a potential gateway for attackers seeking to compromise the broader industrial control system. The vulnerability's relationship to CVE-2019-18287 demonstrates that the Application Server may have multiple interconnected security weaknesses, creating a potential attack chain that could lead to complete system compromise. According to ATT&CK framework, this vulnerability maps to T1083 (File and Directory Discovery) and T1552 (Unsecured Credentials) techniques, as attackers can discover sensitive files and potentially extract credential information from exposed directories.
Mitigation strategies for CVE-2019-18286 should focus on implementing proper access controls and network segmentation within the industrial environment. The primary recommendation involves disabling directory listing functionality on the Application Server and ensuring that sensitive files are properly protected through access control mechanisms. Network segmentation should be implemented to limit access to the Application Highway segment to only authorized personnel and systems, reducing the attack surface available to potential adversaries. Security configuration reviews should be conducted to ensure that the Application Server is not exposing unnecessary information to network users. The vulnerability's requirement for Application Highway access means that physical and logical access controls must be strengthened at the network boundary to prevent unauthorized access to the industrial control environment. Regular security assessments and vulnerability scanning should be performed to identify similar misconfigurations that could create additional attack vectors within the industrial network infrastructure. Organizations should also consider implementing network monitoring and intrusion detection systems to detect unauthorized access attempts to sensitive directories and files within the Application Server environment.