NUUO NVRmini 2 Remote Code Execution Scanner

The NUUO NVRmini 2 is primarily used in security surveillance systems, playing a vital role in managing and recording video from network cameras. Security companies, as well as end users seeking robust video management systems, often rely on this product to ensure comprehensive monitoring and recording. The product is designed for ease of use and efficient video data management, especially in environments requiring reliable NVR solutions. Its deployment is common across various sectors, including retail, banking, and transportation, where maintaining security is critical. Additionally, the system provides functionalities like remote access, giving users convenient ways to manage footage. However, like any software-dependent system, it may contain vulnerabilities as new versions and usage conditions evolve.

Remote Code Execution (RCE) vulnerabilities are particularly dangerous as they allow attackers to execute arbitrary commands on a remote server. This type of vulnerability arises when user input is not properly sanitized, allowing malicious actors to inject and execute code as if they were the server. In the case of the NUUO NVRmini 2, such a vulnerability can compromise not just the integrity of the software but also the security of the captured and stored video data. Attackers exploiting this vulnerability could potentially gain full control of the NVR device. This opens the door to unauthorized access to camera feeds, tampering with stored recordings, and more.

The vulnerability in the NUUO NVRmini 2 involves the 'upgrade_handle.php' endpoint, which is vulnerable due to insufficient user input validation. The 'cmd' parameter can be manipulated to execute arbitrary shell commands. For example, appending a command akin to 'whoami' can reveal the execution context, indicating a deeper vulnerability that can be further exploited. The server's response, if successfully returning the execution result, confirms the vulnerability presence. It becomes crucial to monitor requests pointed to this endpoint, particularly those with suspicious query string patterns.

Exploiting the Remote Code Execution vulnerability can have severe consequences. An attacker could remotely inject and execute malicious code, potentially seizing control of the NVR system. This can lead to unauthorized access or modification of video feeds, disruption of monitoring services, and possible data theft or sabotage. Additionally, exploiting this vulnerability might provide a pathway for attackers to compromise other connected systems, elevating risks within the entire network environment. Thus, timely remediation is essential to secure affected systems.

REFERENCES

• https://www.exploit-db.com/exploits/45070
• https://github.com/berkdsnr/NUUO-NVRMINI-RCE
• https://packetstormsecurity.com/files/151573/NUUO-NVRmini-upgrade_handle.php-Remote-Command-Execution.html