CVE-2006-2113 in Docuprint 211
Summary
by MITRE
The embedded HTTP server in Fuji Xerox Printing Systems (FXPS) print engine, as used in products including (1) Dell 3000cn through 5110cn and (2) Fuji Xerox DocuPrint firmware before 20060628 and Network Option Card firmware before 5.13, does not properly perform authentication for HTTP requests, which allows remote attackers to modify system configuration via crafted requests, including changing the administrator password or causing a denial of service to the print server.
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Analysis
by VulDB Data Team • 12/13/2016
The vulnerability identified as CVE-2006-2113 affects the embedded HTTP server within Fuji Xerox Printing Systems print engines, specifically targeting devices manufactured by Dell under the Xerox brand and certain Fuji Xerox DocuPrint models. This security flaw resides in the authentication mechanisms of the embedded web server that operates within these multifunctional devices, creating a critical weakness that can be exploited by remote attackers without requiring any local access or authentication credentials. The vulnerability impacts a wide range of devices including Dell 3000cn through 5110cn series printers and various Fuji Xerox DocuPrint systems with firmware versions prior to the June 28, 2006 release for the main firmware and version 5.13 for the Network Option Card firmware.
The technical implementation of this vulnerability stems from improper authentication handling within the embedded HTTP server component of these print engines. When the server processes incoming HTTP requests, it fails to adequately validate the authenticity of the requesting entity, allowing unauthorized users to submit crafted HTTP requests that would normally require administrative privileges. This authentication bypass enables attackers to perform administrative functions such as changing administrator passwords, modifying system configuration parameters, or executing denial of service attacks against the print server itself. The flaw represents a classic case of insufficient authentication controls where the system accepts requests without proper verification of credentials or authorization levels, directly violating fundamental security principles.
The operational impact of this vulnerability extends beyond simple unauthorized access to encompass significant risks for enterprise environments relying on these devices. Remote attackers can exploit this weakness to gain full administrative control over the print server, potentially leading to unauthorized configuration changes that could disrupt document processing workflows, compromise print job security, or create backdoor access points within the network infrastructure. The ability to change administrator passwords specifically undermines the device's security posture by allowing attackers to maintain persistent access to the system, while the denial of service capabilities can cause production interruptions and workflow disruptions in office environments. Organizations using affected devices face potential exposure to data leakage, unauthorized printing, and network infiltration through these compromised print servers.
Mitigation strategies for CVE-2006-2113 should prioritize immediate firmware updates from both Dell and Fuji Xerox to address the authentication bypass vulnerability. Network segmentation approaches should be implemented to isolate affected print servers from critical network segments, reducing the potential attack surface and limiting lateral movement if exploitation occurs. Access controls should be enforced through firewall rules that restrict HTTP access to the print server to only trusted administrative workstations, while disabling unnecessary services and ports that may provide additional attack vectors. Security monitoring should be enhanced to detect unusual HTTP traffic patterns or unauthorized configuration changes, and regular security assessments should be conducted to identify and remediate similar vulnerabilities in other networked devices. This vulnerability aligns with CWE-287, which addresses improper authentication issues, and maps to ATT&CK technique T1078 for valid accounts and T1566 for credential harvesting, demonstrating the broader implications of weak authentication mechanisms in networked printing infrastructure.