CVE-2020-10514 in DVR
Summary
by MITRE
iCatch DVR do not validate function parameter properly, resulting attackers executing arbitrary command.
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Analysis
by VulDB Data Team • 05/26/2024
The vulnerability identified as CVE-2020-10514 affects iCatch DVR devices and represents a critical command injection flaw that stems from inadequate input validation within the device's function parameters. This weakness allows remote attackers to execute arbitrary commands on the affected systems, potentially leading to complete system compromise. The vulnerability exists due to insufficient sanitization of user-supplied input that is processed by the DVR software, creating an attack surface where malicious actors can inject harmful commands directly into the system's processing pipeline. The flaw specifically manifests when the device fails to properly validate or sanitize function parameters before using them in system operations, enabling attackers to manipulate the execution flow of the software. This type of vulnerability falls under the category of improper input validation, which is categorized as CWE-20 by the CWE standard and directly relates to the ATT&CK technique T1059.001 for command and script injection. The impact of this vulnerability extends beyond simple privilege escalation as it allows attackers to gain full control over the DVR system, potentially enabling them to access recorded video feeds, modify system configurations, or even use the device as a pivot point for further attacks within the network. The vulnerability's remote exploitability means that attackers do not require physical access to the device, making it particularly dangerous in networked environments where DVR systems are connected to broader corporate or residential networks. Attackers can leverage this weakness to execute malicious commands that could include data exfiltration, system modification, or even the installation of persistent backdoors on the affected devices. The lack of proper parameter validation creates a direct pathway for attackers to bypass normal security controls and execute arbitrary code with the privileges of the running service. This vulnerability directly violates security principles of input sanitization and proper access control, as the device fails to implement adequate defenses against malicious input that could alter the intended behavior of the system. Organizations using iCatch DVR systems face significant risk from this vulnerability, as it could be exploited by threat actors to gain unauthorized access to surveillance footage and potentially compromise the entire security infrastructure. The vulnerability's exploitation requires minimal technical expertise, making it particularly dangerous as it can be leveraged by attackers of varying skill levels. Network monitoring and intrusion detection systems should be configured to detect unusual command execution patterns that could indicate exploitation attempts. The remediation approach for this vulnerability typically involves applying firmware updates provided by iCatch or implementing network segmentation to limit access to these devices, as well as ensuring that only authorized personnel have access to the DVR management interfaces. Organizations should also consider implementing additional security controls such as network access controls, regular security assessments, and monitoring for anomalous command execution patterns that could indicate exploitation attempts. The vulnerability demonstrates the critical importance of proper input validation in security-critical applications and highlights the risks associated with insufficient sanitization of user inputs in embedded systems. This flaw represents a significant security weakness that directly impacts the confidentiality, integrity, and availability of surveillance systems, potentially exposing sensitive information and compromising the security posture of organizations relying on these devices. The vulnerability's classification as a command injection flaw aligns with common attack patterns described in the MITRE ATT&CK framework, particularly in the execution and privilege escalation phases of an attack lifecycle. Proper implementation of input validation and parameter sanitization would have prevented this vulnerability from existing in the first place, emphasizing the importance of secure coding practices in embedded system development.