CVE-2020-36895 in i-Media Server Digital Signage
Summary
by MITRE • 12/10/2025
EIBIZ i-Media Server Digital Signage 3.8.0 contains an unauthenticated configuration disclosure vulnerability that allows remote attackers to access sensitive configuration files via direct object reference. Attackers can retrieve the SiteConfig.properties file through an HTTP GET request, exposing administrative credentials, database connection details, and system configuration information.
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Analysis
by VulDB Data Team • 12/18/2025
The EIBIZ i-Media Server Digital Signage version 3.8.0 presents a critical security vulnerability classified as an unauthenticated configuration disclosure flaw that fundamentally compromises the system's integrity and confidentiality. This vulnerability resides within the server's web interface implementation where improper access controls have been deployed, allowing any remote attacker to exploit a direct object reference vulnerability without requiring authentication credentials. The flaw specifically affects the handling of configuration files within the application's resource management system, creating an exploitable pathway that bypasses normal authentication mechanisms.
The technical implementation of this vulnerability stems from inadequate input validation and access control enforcement within the server's file retrieval mechanisms. When attackers issue an HTTP GET request targeting specific configuration endpoints, the system fails to verify the requester's authorization status before serving sensitive files. The SiteConfig.properties file, which contains critical administrative credentials, database connection parameters, and system configuration settings, becomes directly accessible through predictable URL patterns. This represents a classic direct object reference vulnerability where the application exposes internal object references without proper authorization checks, aligning with CWE-284 access control issues and following patterns described in the OWASP Top Ten 2017 category A05: Security Misconfiguration.
The operational impact of this vulnerability extends far beyond simple information disclosure, creating significant risks for organizations deploying this digital signage solution. Successful exploitation provides attackers with administrative credentials that can be used to gain full control over the server, including the ability to modify content, access other system resources, and potentially escalate privileges within the network. Database connection details exposed through this vulnerability could enable attackers to directly access backend databases containing sensitive information, customer data, or proprietary content. The compromise of system configuration information may reveal network topology details, deployment patterns, and other sensitive operational data that could facilitate further attacks or system exploitation. This vulnerability directly maps to ATT&CK technique T1213.002 for Credential Access and T1083 for File and Directory Discovery, representing a significant threat to the confidentiality and integrity of digital signage deployments.
Organizations utilizing EIBIZ i-Media Server 3.8.0 must implement immediate mitigations to address this vulnerability. The primary recommendation involves implementing proper authentication and authorization checks for all file access endpoints, ensuring that only authenticated administrative users can retrieve sensitive configuration files. Network segmentation and firewall rules should be implemented to restrict access to the server's administrative interfaces from trusted networks only. Regular security auditing of web applications and implementing input validation mechanisms can prevent similar direct object reference vulnerabilities from occurring. The vendor should be notified immediately to release a patched version addressing the access control flaw, while organizations should monitor for any signs of exploitation attempts. Additionally, implementing web application firewalls and intrusion detection systems can help detect and prevent exploitation attempts targeting this specific vulnerability pattern, which is commonly exploited in automated scanning campaigns targeting known digital signage systems.