CVE-2024-22366 in WLX222
Summary
by MITRE • 01/24/2024
Active debug code exists in Yamaha wireless LAN access point devices. If a logged-in user who knows how to use the debug function accesses the device's management page, this function can be enabled by performing specific operations. As a result, an arbitrary OS command may be executed and/or configuration settings of the device may be altered. Affected products and versions are as follows: WLX222 firmware Rev.24.00.03 and earlier, WLX413 firmware Rev.22.00.05 and earlier, WLX212 firmware Rev.21.00.12 and earlier, WLX313 firmware Rev.18.00.12 and earlier, and WLX202 firmware Rev.16.00.18 and earlier.
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Analysis
by VulDB Data Team • 02/17/2024
This vulnerability represents a critical security flaw in Yamaha wireless LAN access point devices that stems from the presence of active debug code within the firmware. The vulnerability exists in multiple device models including WLX222, WLX413, WLX212, WLX313, and WLX202, all of which are affected by firmware versions up to and including the specified revision numbers. The presence of debug functionality in production devices constitutes a fundamental security design flaw that violates industry best practices for secure software development and deployment.
The technical exploitation of this vulnerability requires a logged-in user with knowledge of the debug interface to perform specific operations on the device management page. This attack vector demonstrates a classic case of insecure direct object reference vulnerability where administrative functions are improperly exposed to authenticated users without adequate access controls. The debug functionality, when activated, provides an arbitrary code execution capability that allows attackers to execute operating system commands and modify device configuration settings. This represents a severe privilege escalation vulnerability that can be leveraged to gain complete control over the affected network infrastructure.
The operational impact of this vulnerability extends beyond simple unauthorized access to encompass complete device compromise and potential network infiltration. An attacker with valid credentials can exploit this vulnerability to execute arbitrary commands on the device, potentially leading to persistent backdoor access, network reconnaissance, or even lateral movement within the network infrastructure. The ability to alter configuration settings means that an attacker could modify network parameters, disable security features, or redirect traffic to compromise network integrity and availability. This vulnerability directly maps to CWE-94 (Improper Control of Generation of Code) and CWE-284 (Improper Access Control) while aligning with ATT&CK techniques such as T1059 (Command and Scripting Interpreter) and T1566 (Phishing).
Organizations should immediately implement mitigations including firmware updates from Yamaha to address the vulnerability, restrict administrative access to only necessary personnel, and employ network segmentation to limit the potential impact of exploitation. Additional security measures should include monitoring for unauthorized administrative access attempts, implementing strong authentication controls, and conducting regular security assessments of network infrastructure devices. The vulnerability highlights the importance of proper software lifecycle management and the critical need to remove debug code and development artifacts before deploying production firmware versions. Network administrators should also consider implementing intrusion detection systems to monitor for suspicious activity patterns that might indicate exploitation attempts.