Xerox DC260 EFI Fiery Controller Webtools Local File Inclusion Scanner

The Xerox DC260 EFI Fiery Controller Webtools is primarily used in conjunction with digital printing systems, providing users with extensive functionalities for managing print tasks and system settings. It's commonly utilized by office personnel, printing professionals, and IT administrators to enhance workflow efficiency and document handling. The software interface offers a range of tools for job management, color calibration, and print configuration. It is employed in various environments, from small businesses to large enterprises, where document output and reproduction are critical operations. The software ensures that users have control over print processes, providing a user-friendly interface for technical and non-technical staff. The integration of web tools into the printing solution streamlines operations, contributing to productivity gains by simplifying print management tasks.

Local File Inclusion (LFI) is a vulnerability found in web applications where input is not properly sanitized, allowing attackers to access unauthorized files within the server's filesystem. The vulnerability is caused by the dynamic inclusion of local files without adequate security controls. Attackers exploit LFI vulnerabilities to access and execute sensitive files, potentially leading to information disclosure or further system compromise. Typically, LFI vulnerabilities are found in scripts that dynamically include files based on user input, which is not properly validated before use. By manipulating file paths in input parameters, malicious users can traverse directories and read confidential data. This type of vulnerability is critical because it may expose configuration files, user credentials, or other sensitive content stored on the web server.

In the Xerox DC260 EFI Fiery Controller Webtools 2.0, the LFI vulnerability is linked to the 'forceSave.php' script that improperly sanitizes the 'file' GET parameter. An attacker can exploit this weakness by crafting a URL that injects a file path into the ‘file’ parameter, leading to the inclusion of sensitive system files. The flaw allows for directory traversal attacks, which can expose system files like '/etc/passwd'. This vulnerability is exacerbated by the lack of authentication required to trigger the exploit, increasing its accessibility. The issue resides within the PHP script's method of handling input, failing to validate or clean up user-supplied file paths. As a result, attackers can gain access to protected files, causing potential information leakage.

If exploited, this LFI vulnerability in the Xerox DC260 EFI Fiery Controller Webtools could lead to significant security breaches. Attackers could gain unauthorized access to confidential files, including configuration files and system passwords. There's also the risk of leveraging the access obtained to escalate privileges or conduct further attacks on other parts of the network. Sensitive data can be harvested, resulting in possible identity theft, data corruption, or service disruption. Moreover, exploiting this vulnerability could allow attackers to establish a foothold within the compromised system, making it part of a broader intrusion campaign. The resulting data leaks and unauthorized access to server resources can lead to substantial financial and reputational damage for the affected organization.

REFERENCES

• https://www.zeroscience.mk/en/vulnerabilities/ZSL-2017-5447.php
• https://packetstormsecurity.com/files/145570
• https://www.exploit-db.com/exploits/43398/