CVE-2020-3484 in Vision Dynamic Signage Director
Summary
by MITRE
A vulnerability in the web-based management interface of Cisco Vision Dynamic Signage Director could allow an unauthenticated, remote attacker to view potentially sensitive information on an affected device. The vulnerability is due to incorrect permissions within Apache configuration. An attacker could exploit this vulnerability by sending a crafted HTTP request to the web-based management interface. A successful exploit could allow the attacker to view potentially sensitive information on the affected device.
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Analysis
by VulDB Data Team • 11/10/2020
The vulnerability identified as CVE-2020-3484 resides within the web-based management interface of Cisco Vision Dynamic Signage Director, a component designed for managing digital signage content and displays. This particular security flaw represents a critical exposure that undermines the confidentiality controls of the affected system. The vulnerability stems from improper access control mechanisms implemented within the Apache web server configuration, creating an avenue for unauthorized information disclosure. Attackers exploiting this weakness can potentially access sensitive data without requiring authentication credentials, fundamentally compromising the security posture of deployed signage infrastructure. The affected device operates as a central management point for digital signage networks, making it a valuable target for threat actors seeking to gather intelligence about network configurations or operational details.
The technical root cause of this vulnerability aligns with CWE-284, which addresses improper access control issues within software systems. The Apache configuration contains misconfigured permissions that fail to properly enforce authentication requirements for sensitive endpoints within the web interface. This misconfiguration allows HTTP requests to bypass normal access controls and directly access restricted resources within the application's file system or internal data structures. The flaw specifically affects the web-based management interface components that handle administrative functions and configuration data. Attackers can craft specific HTTP requests that target these improperly protected endpoints, enabling them to retrieve information that should remain restricted to authorized administrators. The vulnerability demonstrates how configuration errors in web server components can create severe security implications that extend beyond simple access control failures.
The operational impact of this vulnerability extends beyond simple information disclosure, as it creates opportunities for attackers to gather intelligence about the targeted network infrastructure. An unauthenticated attacker could potentially discover device configurations, user credentials, system architecture details, or other sensitive operational data that could facilitate subsequent attacks. This information disclosure vulnerability undermines the fundamental security principles of confidentiality and integrity within the affected Cisco Vision Dynamic Signage Director deployments. Organizations relying on this signage management solution face risks of targeted attacks, competitive intelligence gathering, or even potential physical security compromise through detailed knowledge of display network configurations. The vulnerability affects organizations using Cisco Vision Dynamic Signage Director software, particularly those in sectors where digital signage networks contain sensitive operational or customer data.
Mitigation strategies for CVE-2020-3484 should prioritize immediate remediation through official Cisco security patches and updates. Organizations must verify their current software versions and apply the relevant security fixes provided by Cisco to address the Apache configuration permissions issue. Network segmentation and firewall rules should be implemented to restrict access to the web-based management interface from untrusted networks, limiting potential attack vectors. Access control measures should include mandatory authentication for all management interfaces and regular review of permission settings within Apache configurations. Security monitoring should be enhanced to detect anomalous access patterns or unauthorized attempts to access sensitive administrative endpoints. The vulnerability highlights the importance of proper web server configuration management and adherence to security best practices for maintaining secure network infrastructure. Organizations should also consider implementing additional security controls such as intrusion detection systems and regular security assessments to identify similar configuration weaknesses in other network components. This vulnerability serves as a reminder of the critical nature of proper access control implementation in web applications and the potential consequences of configuration errors in enterprise security infrastructure.