CVE-2018-16224

Vulnerability

CVE-2018-16224 describes an incorrect access control vulnerability in the iSmartAlarm Cube One through firmware version 2.2.4.10. The device exposes its diagnostic files on TCP ports 12345 and 22306 without requiring any authentication. An attacker can send a specifically crafted TCP request to these ports to retrieve these files [1].

Exploitation

An attacker needs only network connectivity to the target device on ports 12345 or 22306. No authentication, user interaction, or privileged network position is required. The attacker simply crafts a TCP request to the open port and receives the diagnostic file in response [1].

Impact

Successful retrieval of the diagnostic files discloses sensitive information about the device, including credentials and other configuration data. This leakage can lead to full compromise of the device and may expose the user's home network to further attack [1].

Mitigation

iSmartAlarm has not released a patch for this vulnerability as of the available references. The affected firmware version is 2.2.4.10. Users should isolate the device on a separate network segment or block external access to ports 12345 and 22306 until a fix is provided. The vulnerability is not listed on the CISA Known Exploited Vulnerabilities (KEV) catalog as of this writing [1].