CVE-2017-7462 in NFC-30ir IP Camera
Summary
by MITRE
Intellinet NFC-30ir IP Camera has a vendor backdoor that can allow a remote attacker access to a vendor-supplied CGI script in the web directory.
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Analysis
by VulDB Data Team • 09/15/2024
The CVE-2017-7462 vulnerability affects Intellinet NFC-30ir IP camera devices that contain a persistent backdoor mechanism within their web interface. This backdoor is implemented through a vendor-supplied CGI script located in the web directory of the device's file system, creating an unauthorized access point that bypasses normal authentication procedures. The vulnerability represents a critical security flaw in IoT device security architecture where manufacturers embed hidden administrative access mechanisms without proper disclosure or secure implementation.
The technical implementation of this backdoor involves a CGI script that operates within the web server environment of the IP camera, allowing remote attackers to execute commands without proper authentication credentials. This mechanism typically operates by checking for specific parameters or headers that trigger the backdoor functionality, enabling attackers to gain administrative privileges or execute arbitrary code on the device. The vulnerability stems from poor security practices during the development lifecycle where the backdoor was not properly secured or removed from production builds.
The operational impact of this vulnerability extends beyond simple unauthorized access, as it provides attackers with persistent administrative control over the camera device. This allows for complete compromise of the device's functionality including video stream interception, configuration modification, and potential use as a pivot point for network reconnaissance attacks. The backdoor can be exploited remotely without requiring physical access or valid user credentials, making it particularly dangerous for surveillance deployments where camera security is paramount. This vulnerability aligns with CWE-284 Access Control Issues and represents a significant violation of the principle of least privilege in device security design.
Mitigation strategies for this vulnerability require immediate device isolation and firmware updates from the vendor when available. Network segmentation should be implemented to limit lateral movement if the device is already compromised. Security monitoring should focus on unusual CGI script execution patterns and unauthorized access attempts to the web interface. Organizations should consider implementing network access controls that restrict communication with the affected device and regularly audit network traffic for suspicious activity. The vulnerability demonstrates the importance of supply chain security and the need for third-party security assessments of IoT device firmware before deployment. This issue relates to ATT&CK technique T1078 Valid Accounts and T1059 Command and Scripting Interpreter, as it provides unauthorized access through legitimate administrative interfaces and enables command execution through web-based interfaces.