CVE-2016-5678 in NVRmini
Summary
by MITRE
NUUO NVRmini 2 1.0.0 through 3.0.0 and NUUO NVRsolo 1.0.0 through 3.0.0 have hardcoded root credentials, which allows remote attackers to obtain administrative access via unspecified vectors.
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Analysis
by VulDB Data Team • 12/05/2024
The vulnerability identified as CVE-2016-5678 affects NUUO network video recorder devices including the NVRmini 2 and NVRsolo models across firmware versions 1.0.0 through 3.0.0. This represents a critical security flaw that stems from the improper implementation of authentication mechanisms within the device firmware. The vulnerability is classified under CWE-798 as the use of hardcoded credentials, which violates fundamental security principles and creates persistent backdoors for malicious actors. The flaw exists in the device's bootstrapping process where default administrative credentials are embedded directly into the firmware code rather than being dynamically generated or securely stored.
The technical exploitation of this vulnerability occurs through unspecified attack vectors that typically involve network-based reconnaissance and authentication attempts. Attackers can leverage the hardcoded root credentials to establish administrative sessions without requiring knowledge of legitimate user passwords or authentication tokens. This provides attackers with complete control over the device, enabling them to modify configuration settings, access stored video footage, manipulate recording schedules, and potentially use the device as a pivot point for further attacks within the network. The vulnerability's impact extends beyond simple unauthorized access as it fundamentally undermines the device's security posture and integrity.
From an operational perspective, this vulnerability poses significant risks to organizations relying on NUUO NVR devices for security monitoring and surveillance. The hardcoded credentials create persistent access points that remain active regardless of password changes or system updates, making the vulnerability particularly dangerous in environments where physical security is already compromised. The attack surface is broadened by the fact that these devices are often deployed in networked environments where they may be accessible from external networks, increasing the likelihood of exploitation. This vulnerability directly maps to ATT&CK technique T1078.004 for valid accounts and T1566.001 for spearphishing with malicious attachments, as attackers can leverage the hardcoded credentials to establish persistent access and potentially spread to other networked systems.
Mitigation strategies for CVE-2016-5678 require immediate action from affected organizations to address the hardcoded credential issue. The primary recommendation involves updating firmware to versions that eliminate hardcoded credentials and implement proper authentication mechanisms. Organizations should also implement network segmentation to isolate these devices from critical network segments, deploy network monitoring tools to detect unauthorized access attempts, and conduct regular security assessments to identify similar hardcoded credential issues in other networked devices. Additionally, implementing network access controls through firewalls and intrusion detection systems can help prevent unauthorized access attempts and provide early warning of exploitation attempts. The vulnerability highlights the importance of following security best practices such as those outlined in the NIST Cybersecurity Framework and ISO/IEC 27001 standards for secure system development and deployment.