CVE-2018-16224 in iSmartAlarm Cube One
Summary
by MITRE
Incorrect access control for the diagnostic files of the iSmartAlarm Cube One through 2.2.4.10 allows an attacker to retrieve them via a specifically crafted TCP request to port 12345 and 22306, and access sensitive information from the device.
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Analysis
by VulDB Data Team • 06/11/2023
The vulnerability CVE-2018-16224 represents a critical access control flaw in the iSmartAlarm Cube One security device firmware versions up to 2.2.4.10. This issue stems from improper authentication mechanisms that allow unauthorized access to diagnostic files through specific network ports. The vulnerability affects the device's security architecture by creating an unauthorized data exposure channel that bypasses normal access controls and authentication procedures. The affected device operates with a default configuration that exposes diagnostic information without requiring proper credentials or authorization checks, fundamentally undermining its security posture.
The technical implementation of this vulnerability occurs through the device's network service handling on ports 12345 and 22306 which are designated for diagnostic communication. Attackers can exploit this flaw by crafting specific TCP requests that target these ports without proper authentication, allowing them to retrieve sensitive diagnostic information from the device's file system. This represents a classic case of insufficient authorization checks where the device fails to validate incoming requests before serving diagnostic content. The flaw aligns with CWE-284 which addresses improper access control, specifically focusing on inadequate permissions for sensitive resources. The vulnerability demonstrates a failure in the principle of least privilege where diagnostic functionality should be restricted to authorized personnel only.
The operational impact of this vulnerability extends beyond simple information disclosure to potentially enable more sophisticated attacks against the security device and its network environment. An attacker who successfully exploits this vulnerability could gain access to device configuration details, system logs, network settings, and other sensitive diagnostic information that could be used to plan further attacks or understand the device's operational behavior. This information disclosure could provide attackers with insights into the device's internal architecture, communication protocols, and potential weaknesses in the broader security infrastructure. The vulnerability also creates opportunities for lateral movement within networks where such devices are deployed, as the diagnostic information might reveal network topology or other sensitive operational details that could be leveraged for privilege escalation or additional compromise attempts.
The exploitation of this vulnerability directly contradicts established security best practices and standards such as those outlined in the MITRE ATT&CK framework where this would fall under the T1083 technique for discovering system information. Organizations should implement immediate mitigations including network segmentation to isolate affected devices, disabling unnecessary diagnostic ports when not actively needed, and applying firmware updates to resolve the access control issue. Additionally, regular security audits should be conducted to ensure that diagnostic services are properly configured and that access controls are appropriately enforced. The vulnerability highlights the importance of proper security testing during device development and deployment phases, particularly for IoT and security appliances where unauthorized access can have significant operational and security implications. Organizations should also consider implementing network monitoring to detect anomalous access patterns to these diagnostic ports and establish proper incident response procedures to address potential exploitation attempts.