CVE-2006-6439 in WorkCentre
Summary
by MITRE
Xerox WorkCentre and WorkCentre Pro before 12.050.03.000, 13.x before 13.050.03.000, and 14.x before 14.050.03.000 allows remote attackers to download the audit log and obtain potentially sensitive information via unspecified vectors.
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Analysis
by VulDB Data Team • 03/12/2015
The vulnerability identified as CVE-2006-6439 affects Xerox WorkCentre and WorkCentre Pro multifunction devices across multiple firmware versions, specifically targeting devices running firmware versions prior to 12.050.03.000, 13.x before 13.050.03.000, and 14.x before 14.050.03.000. This security flaw represents a significant information disclosure vulnerability that enables remote attackers to access audit log files containing potentially sensitive operational data. The vulnerability resides in the device's web interface implementation where insufficient access controls and authentication mechanisms fail to properly restrict access to critical system logs and audit trails. The unspecified vectors suggest that attackers could potentially exploit this weakness through various network-based attack surfaces including web browser interfaces, network protocols, or direct API calls to the device's management interfaces.
The technical nature of this vulnerability aligns with CWE-200, which describes improper output handling where sensitive information is exposed to unauthorized parties. The flaw essentially allows unauthenticated or insufficiently authenticated remote attackers to retrieve audit logs that typically contain detailed records of user activities, system operations, and potentially sensitive business data. These audit logs may include information about print jobs, user authentication attempts, system configuration changes, and other operational details that could reveal organizational workflows, user behavior patterns, and system vulnerabilities. The impact is particularly concerning because audit logs are designed to provide security monitoring and forensic capabilities, making their unauthorized access a critical security concern that undermines the device's security posture.
Operationally, this vulnerability creates significant risks for organizations using affected Xerox devices, as it enables adversaries to gather intelligence about device usage patterns, identify potential security gaps, and potentially discover system weaknesses that could lead to further exploitation. The ability to download audit logs remotely means attackers can systematically collect sensitive information without requiring physical access to the devices or sophisticated technical skills. This vulnerability particularly impacts organizations that rely on these devices for business-critical operations, as the stolen audit log data could reveal confidential information about printing activities, user access patterns, and system configurations that could be leveraged for targeted attacks or insider threat exploitation. The remote nature of the attack vector means that threat actors can exploit this weakness from anywhere on the network, making it particularly dangerous in enterprise environments where these devices often have direct network connectivity.
Organizations should immediately implement mitigations including updating affected devices to the patched firmware versions referenced in the advisory, implementing network segmentation to limit access to these devices, and configuring proper access controls on the device web interfaces. Additional protective measures include monitoring network traffic for suspicious access patterns to device management interfaces, implementing network access controls using firewalls and access control lists, and conducting regular security assessments of these devices. The vulnerability demonstrates the importance of maintaining up-to-date firmware and implementing defense-in-depth strategies, as outlined in the ATT&CK framework's reconnaissance and credential access phases. Organizations should also consider implementing network monitoring solutions that can detect unauthorized access attempts to device management interfaces and establish incident response procedures for handling potential audit log exposure incidents. The vulnerability serves as a reminder of the critical importance of securing all network-connected devices, including multifunction printers and copiers, which often serve as overlooked attack vectors in enterprise security architectures.