CVE-2014-9002 in xPrintServer
Summary
by MITRE
Lantronix xPrintServer does not properly restrict access to ips/, which allows remote attackers to execute arbitrary commands via the c parameter in an rpc action.
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Analysis
by VulDB Data Team • 04/04/2022
The CVE-2014-9002 vulnerability affects Lantronix xPrintServer devices, representing a critical access control flaw that enables remote code execution through improper directory restrictions. This vulnerability specifically targets the ips/ directory within the device's web interface, where unauthorized users can exploit a flaw in the rpc action processing mechanism. The vulnerability stems from inadequate input validation and access control measures that fail to properly authenticate and authorize requests accessing sensitive system functions. The c parameter within the rpc action serves as the primary attack vector, allowing malicious actors to inject and execute arbitrary commands on the affected device with elevated privileges. This represents a classic example of a command injection vulnerability that bypasses normal security controls through improper path restriction.
The technical exploitation of this vulnerability occurs through a combination of directory traversal and command injection techniques that leverage the device's web interface. When a remote attacker submits a crafted request containing the c parameter within the rpc action, the system fails to properly validate the input before executing the command, leading to arbitrary code execution. The vulnerability is particularly concerning because it allows attackers to gain full control over the device's operating system, potentially enabling them to install malware, modify system configurations, or use the device as a pivot point for further attacks within the network. This flaw directly violates the principle of least privilege and demonstrates poor input sanitization practices in the web application layer. The vulnerability can be classified under CWE-77 and CWE-89, representing command injection and improper input validation respectively, with implications for the broader category of privilege escalation attacks.
The operational impact of CVE-2014-9002 extends beyond immediate device compromise, creating significant risks for network security and operational continuity. Organizations relying on Lantronix xPrintServer devices may experience unauthorized access to sensitive network resources, potential data breaches, and service disruption from compromised print servers. The vulnerability's remote exploitability means attackers can target these devices from outside the network perimeter, making them particularly attractive targets for cybercriminals seeking to establish persistent access points. Once compromised, these devices can be used as command and control nodes for botnet activities or as stepping stones for lateral movement within the network. The attack surface is further expanded due to the widespread deployment of these print servers in enterprise environments, where they often maintain access to sensitive internal resources. This vulnerability aligns with ATT&CK techniques related to remote service exploitation and privilege escalation, potentially enabling attackers to maintain persistence and expand their access within the target environment.
Mitigation strategies for CVE-2014-9002 should focus on immediate network segmentation and access control measures to prevent unauthorized remote access to affected devices. Organizations should implement network-level restrictions using firewalls to block access to the vulnerable web interface from untrusted networks while ensuring that only authorized personnel can access these systems. The most effective immediate solution involves applying vendor-provided security patches or firmware updates that address the access control flaw and properly validate input parameters. Network administrators should also implement monitoring and logging of access attempts to the ips/ directory to detect potential exploitation attempts. Regular vulnerability assessments and penetration testing should be conducted to identify similar access control flaws in other networked devices. Additional defensive measures include disabling unnecessary web services, implementing strong authentication mechanisms, and maintaining up-to-date network security monitoring systems. The vulnerability highlights the importance of secure coding practices and proper input validation in embedded systems, emphasizing the need for comprehensive security testing throughout the development lifecycle. Organizations should also consider implementing network access control lists and privileged access management solutions to reduce the risk of unauthorized access to critical network infrastructure components.