CVE-2024-23842 in DVR LGUVR-16H
Summary
by MITRE • 01/23/2024
Improper Input Validation in Hitron Systems DVR LGUVR-16H 1.02~4.02 allows an attacker to cause network attack in case of using defalut admin ID/PW.
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Analysis
by VulDB Data Team • 12/31/2025
The vulnerability identified as CVE-2024-23842 represents a critical security flaw in Hitron Systems DVR LGUVR-16H devices running firmware versions 1.02 through 4.02. This issue stems from improper input validation mechanisms that fail to adequately sanitize user inputs, creating potential pathways for malicious actors to exploit the device's network interfaces. The vulnerability specifically manifests when default administrative credentials remain unchanged, providing attackers with a straightforward entry point to compromise the device. The affected Hitron DVR models are commonly deployed in surveillance and security monitoring environments, making this vulnerability particularly concerning for organizations relying on these systems for critical infrastructure protection.
The technical implementation of this vulnerability falls under CWE-20, which describes improper input validation as a fundamental security weakness in software applications. Attackers can leverage the default admin ID/PW combination to establish unauthorized access to the device's management interface, potentially enabling them to execute arbitrary commands, modify system configurations, or intercept network traffic passing through the DVR. The lack of proper input validation means that the device fails to properly validate or sanitize data received from network interfaces, allowing malicious inputs to bypass security checks. This weakness creates a direct pathway for attackers to perform privilege escalation attacks and gain full administrative control over the device, which could result in complete compromise of the surveillance network.
The operational impact of this vulnerability extends beyond simple unauthorized access, as it fundamentally undermines the security posture of organizations using these DVR systems. Once compromised, attackers can manipulate video feeds, disable security features, or establish persistent backdoors within the network infrastructure. The default credential issue compounds the problem significantly, as many organizations fail to change these default settings during deployment, leaving systems vulnerable by default. This vulnerability aligns with ATT&CK technique T1078 which covers valid accounts for maintaining access, and T1566 which covers credential harvesting through social engineering or default credentials. The compromised device can serve as a pivot point for lateral movement within the network, potentially enabling attackers to access other connected systems and expand their foothold.
Mitigation strategies for CVE-2024-23842 must address both immediate remediation and long-term security improvements. Organizations should immediately change default administrative credentials to strong, unique passwords and implement multi-factor authentication where possible. Network segmentation should be implemented to isolate DVR systems from critical network segments, reducing the potential impact of compromise. Regular firmware updates must be applied to ensure devices are running the latest security patches from Hitron Systems. Network monitoring should be enhanced to detect unusual access patterns or unauthorized login attempts to these devices. Additionally, implementing automated vulnerability scanning tools can help identify unpatched devices within the network infrastructure. Security awareness training for system administrators should emphasize the importance of changing default credentials and maintaining proper access controls. The vulnerability also highlights the need for robust network access control policies and regular security audits to prevent similar issues from arising in other networked devices within the organization's infrastructure.