CVE-2024-22770 in DVR HVR-16781
Summary
by MITRE • 01/23/2024
Improper Input Validation in Hitron Systems DVR HVR-16781 1.03~4.02 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-2024-22770 represents a critical improper input validation flaw within Hitron Systems DVR HVR-16781 firmware versions 1.03 through 4.02. This weakness stems from insufficient validation of user inputs during network communication processes, creating an avenue for malicious actors to exploit the device's default administrative credentials. The vulnerability specifically targets the authentication mechanisms that rely on hardcoded default username and password combinations, which remain unchanged across deployments and are widely documented within security research communities. The flaw falls under the Common Weakness Enumeration category CWE-20, which encompasses improper input validation issues that can lead to various security breaches including unauthorized access and privilege escalation.
Network-based attacks leveraging this vulnerability can occur when the DVR device is connected to a network and accessible to remote attackers. The default administrative credentials provide an initial foothold for exploitation, allowing attackers to gain full administrative control over the device. This control enables malicious actors to manipulate recorded footage, modify system configurations, disable security features, and potentially use the device as a pivot point for attacking other networked systems. The vulnerability is particularly dangerous because it affects devices that are typically deployed in residential and small business environments where network security measures may be inadequate. Attackers can leverage this weakness to establish persistent access points within network infrastructures, making it a significant concern for both individual users and enterprise security teams.
The operational impact of CVE-2024-22770 extends beyond simple unauthorized access to encompass broader network compromise scenarios. Once an attacker gains administrative control through default credentials, they can modify the device's network configuration to redirect traffic, install malicious firmware, or use the DVR as a command and control node for further attacks. The vulnerability also creates opportunities for attackers to exploit the device's network services and potentially gain access to other connected systems through lateral movement techniques. From an attack framework perspective, this vulnerability aligns with ATT&CK technique T1078.004 which covers legitimate credentials and T1566.001 which addresses spearphishing through social engineering. The attack surface is particularly concerning given that DVR devices often contain sensitive video surveillance data and may be located in environments with limited physical security controls.
Mitigation strategies for CVE-2024-22770 must address both immediate remediation and long-term security enhancements. Organizations should immediately change default administrative credentials to strong, unique passwords and ensure that these changes are properly enforced through secure password policies. Network segmentation should be implemented to isolate DVR devices from critical network segments, limiting potential attack vectors. Regular firmware updates must be prioritized, as Hitron has likely released patches addressing this vulnerability. Network monitoring should be enhanced to detect unusual authentication patterns and unauthorized access attempts. Additionally, device hardening practices including disabling unnecessary network services, implementing secure remote access protocols, and conducting regular security audits are essential. The vulnerability also highlights the importance of secure configuration management and the need for organizations to maintain inventories of all networked devices to ensure proper security posture across their entire infrastructure.