CVE-2024-51977 Scanner

Brother MFC-L9570CDW is a multifunctional printer commonly used by businesses and individual users for printing, scanning, copying, and faxing documents. Its features include wireless connectivity, duplex printing, and high-speed output, making it suitable for both small and medium-sized offices. The printer is equipped with advanced security options and enterprise-level capabilities to manage document workflows efficiently. Brother's devices are renowned for being user-friendly and reliable. The MFC-L9570CDW, like many other printers, supports network integration and can be managed remotely via web-based interfaces. Its functionality and ease of integration into office settings make it a popular choice among professional environments.

The Information Disclosure vulnerability allows unauthorized access to sensitive information from Brother MFC-L9570CDW printers. It arises from insufficient authentication controls when accessing certain endpoints, enabling attackers to obtain data. This vulnerability can be exploited remotely without needing authentication. An attacker can then leverage the accessible endpoints to extract confidential information, including IP addresses and device serial numbers. Understanding the implications of such vulnerabilities is vital for securing networked office devices. Regular updates and vulnerability assessments are essential in mitigating such risks.

The technical core of this vulnerability allows an attacker to send unauthenticated GET requests to specific URI paths, such as /etc/mnt_info.csv, on the printer. The exposed endpoint returns a CSV table containing crucial device information. Parameters that can be compromised include the device’s model name, firmware version, IP address, and serial number. Attackers can script these requests to automate data extraction from multiple vulnerable devices. Ensuring these endpoints are secured with access controls would have prevented such exposure. Understanding the technical nuances of these weaknesses highlights the need for stringent device configuration.

If exploited, the Information Disclosure vulnerability could lead to significant security risks. Attackers could use the disclosed information to conduct further targeted attacks against an organization. For instance, learning the model and firmware version may assist in tailoring exploits or assessing other potential vulnerabilities. IP address exposure could facilitate network-based attacks or unauthorized access attempts. Moreover, the serial number and other sensitive device data could be misused in identity theft or fraud scenarios. The potential for reputation damage and the breach of user data privacy necessitate urgent vulnerability management.

REFERENCES

• https://github.com/sfewer-r7/BrotherVulnerabilities/blob/main/CVE-2024-51977.rb