CVE-2001-1040 in JetAdmin
Summary
by MITRE
HP LaserJet, and possibly other JetDirect devices, resets the admin password when the device is turned off, which could allow remote attackers to access the device without the password.
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Analysis
by VulDB Data Team • 06/03/2018
The vulnerability described in CVE-2001-1040 represents a critical security flaw in HP LaserJet printers and potentially other JetDirect networked printing devices that was identified in the early 2000s. This issue stems from a fundamental design weakness in the device's password management system where administrative credentials are not properly persisted through power cycles. The flaw specifically affects networked printing devices that utilize JetDirect technology, which allows printers to connect directly to network infrastructure without requiring a dedicated computer connection. When these devices undergo a power reset or shutdown operation, the administrative password is automatically reset to a default or empty state, creating a window of opportunity for unauthorized access during the vulnerable period.
The technical implementation of this vulnerability lies in how the device firmware handles authentication state management across power events. When a printer receives a power cycle command or experiences a power interruption, the system fails to maintain the administrative password in non-volatile storage or memory that persists beyond the device's operational state. This behavior violates standard security practices for authentication systems and creates what is essentially a temporary backdoor that remains open until the device is manually reconfigured. The vulnerability operates at the system level within the printer's embedded operating system, where proper state management should ensure that administrative credentials remain intact regardless of power events. This flaw aligns with CWE-284, which addresses improper access control, and specifically relates to inadequate protection of privileged information during system transitions.
The operational impact of this vulnerability extends beyond simple unauthorized access to encompass broader security implications for networked printing environments. Remote attackers can exploit this weakness by simply powering off the affected device, thereby gaining administrative access without requiring knowledge of the current password. This creates a significant risk for organizations that rely on networked printers for sensitive document processing, as it allows attackers to modify printer configurations, access print queues, or potentially redirect print jobs to unauthorized recipients. The vulnerability is particularly concerning in enterprise environments where printers are often configured with administrative privileges and may be used to process confidential documents. Attackers could leverage this weakness to gain access to print server configurations, modify network settings, or even establish persistent access points within the network infrastructure. The temporary nature of the vulnerability means that it can be exploited repeatedly, making it a persistent threat that requires immediate remediation.
Organizations should implement immediate mitigations to address this vulnerability by ensuring that administrative passwords are properly configured and that physical access controls are maintained to prevent unauthorized power cycling of networked devices. The recommended approach involves establishing secure administrative procedures that require physical presence verification before any power reset operations are performed, as well as implementing network segmentation that limits access to printer management interfaces. Additionally, device firmware updates should be applied immediately to address the underlying design flaw, though many of these older devices may no longer receive security updates from manufacturers. Network monitoring should be enhanced to detect unusual power cycling patterns that could indicate exploitation attempts, and administrative access should be restricted to trusted personnel only. The vulnerability also highlights the importance of considering security implications during the design phase of embedded systems, as outlined in the NIST SP 800-160 standard for secure system design practices, and demonstrates how seemingly minor implementation details can create significant security risks that persist for extended periods.