CVE-2006-4680 in Imagerunner 9070
Summary
by MITRE
The Remote UI in Canon imageRUNNER includes usernames and passwords when exporting an address book, which allows context-dependent attackers to obtain sensitive information.
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Analysis
by VulDB Data Team • 09/25/2017
The vulnerability identified as CVE-2006-4680 resides within the Remote UI functionality of Canon imageRUNNER multifunction devices, representing a critical information disclosure flaw that undermines the security posture of enterprise printing environments. This weakness specifically manifests during the address book export process, where the system inadvertently includes authentication credentials within the exported data structure, creating an exploitable condition that can be leveraged by malicious actors with contextual access to the device.
The technical implementation flaw stems from insufficient input validation and output sanitization within the Remote UI component of these devices. When users attempt to export address book data through the web-based interface, the system fails to properly strip or encrypt authentication credentials that are associated with the address book entries. This occurs because the export function does not adequately distinguish between sensitive credential data and regular contact information, resulting in the inclusion of usernames and passwords within the exported file format. The vulnerability is context-dependent, meaning that attackers must already have some level of access to the device's network interface or web management portal to exploit this weakness effectively.
The operational impact of this vulnerability extends beyond simple credential exposure, as it can enable attackers to escalate privileges and gain unauthorized access to the multifunction device's administrative functions. Once attackers obtain the exported credentials, they can potentially impersonate legitimate users, modify device configurations, or even redirect print jobs to malicious destinations. The attack surface is particularly concerning in enterprise environments where these devices are often connected to internal networks and may have elevated privileges. According to the CWE database, this vulnerability maps to CWE-200, which describes the improper exposure of sensitive information, and potentially CWE-522, which addresses insufficiently protected credentials. The ATT&CK framework categorizes this as a credential access technique, specifically related to the extraction of credentials from network devices, with potential for lateral movement and privilege escalation.
Mitigation strategies for this vulnerability should focus on immediate configuration changes and network segmentation measures. Organizations should disable or restrict access to the Remote UI functionality when not required, implement strict network access controls using firewalls to limit exposure, and ensure that all devices are updated with the latest firmware patches from Canon. Additionally, network monitoring should be enhanced to detect unusual export activities or unauthorized access attempts to device management interfaces. Regular security audits of networked printing devices should be conducted to identify similar vulnerabilities, and credential rotation procedures should be implemented to minimize the impact of any potential credential compromise. The vulnerability demonstrates the critical importance of secure coding practices in networked device interfaces and highlights the need for comprehensive security testing of administrative functions within enterprise equipment.