CVE-2013-4733 in R189 One-Net EAS
Summary
by MITRE
The web server on the Digital Alert Systems DASDEC EAS device before 2.0-2 and the Monroe Electronics R189 One-Net EAS device before 2.0-2 allows remote attackers to obtain sensitive configuration and status information by reading log files.
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Analysis
by VulDB Data Team • 06/03/2026
The vulnerability identified as CVE-2013-4733 affects digital emergency alert systems manufactured by Digital Alert Systems and Monroe Electronics, specifically targeting their EAS (Emergency Alert System) devices. These devices are critical infrastructure components designed to broadcast emergency alerts and notifications to the public through various communication channels. The flaw resides in the web server implementation of these systems, which fails to properly secure access to sensitive operational data. The vulnerability impacts versions prior to 2.0-2 of both the DASDEC EAS device and the Monroe Electronics R189 One-Net EAS device, representing a significant security weakness in emergency communication infrastructure that could compromise public safety systems.
The technical nature of this vulnerability stems from improper access controls within the web server component of these emergency alert devices. Remote attackers can exploit this weakness by simply reading log files that contain sensitive configuration parameters, system status information, and operational data. This represents a classic privilege escalation and information disclosure vulnerability where the system fails to implement proper authentication mechanisms or access controls for sensitive files. The flaw allows unauthenticated remote access to data that should be restricted to authorized personnel only, potentially exposing critical system parameters that could be leveraged for further attacks or system compromise.
The operational impact of this vulnerability extends beyond simple information disclosure, as it fundamentally undermines the security posture of emergency alert systems that are designed to be resilient and secure. Emergency alert systems are expected to maintain high availability and integrity of their communications, and the exposure of configuration details could enable attackers to identify system weaknesses, understand operational procedures, and potentially disrupt emergency communications. This vulnerability creates a pathway for malicious actors to gather intelligence about system configurations, which could be used to plan more sophisticated attacks against the emergency alert infrastructure. The potential for disruption to emergency communications during critical situations makes this vulnerability particularly concerning from a public safety perspective.
Organizations should implement immediate mitigations including updating to patched versions 2.0-2 or later for both affected device models, implementing network segmentation to isolate these devices from general network access, and applying proper access controls to web server components. Additional security measures should include regular monitoring of system logs for unauthorized access attempts, implementing network intrusion detection systems to monitor for suspicious activity targeting these devices, and establishing secure remote access procedures for authorized maintenance activities. From a compliance standpoint, this vulnerability aligns with CWE-200 (Information Exposure) and represents a violation of security principles that should be addressed through proper security lifecycle management. The ATT&CK framework categorizes this as a technique involving Information Gathering and Credential Access, where adversaries can use the exposed information to plan more targeted attacks against the emergency alert infrastructure. Organizations should also consider implementing network access controls and firewall rules to restrict access to these devices to only authorized network segments and IP addresses.