CVE-2020-27555

Vulnerability

The BASETech GE-131 BT-1837836 IP camera running firmware version 20180921 uses default credentials for its telnet server. The official description confirms the presence of default password on the telnet service, which is also referenced in the analysis [1]. This allows any remote attacker to connect to the device's telnet interface without any additional authentication bypass steps.

Exploitation

An attacker with network access to the camera can connect to the telnet service using default credentials (likely root/123456 or similar, as the mobile app pre-fills 123456 as default password [1]). No prior authentication or user interaction is required. The attacker can then simply log in and execute commands at the shell prompt.

Impact

Successful exploitation grants the attacker full root-level command execution on the device. This results in complete compromise of confidentiality, integrity, and availability of the camera, including access to the video stream, configuration data, and the ability to modify device behavior or use it as a foothold in the network.

Mitigation

As of the publication date (2020-11-17), no firmware update was available for this device [1]. The vendor appears to have not released any patch, and the camera may be end-of-life. The only mitigation is to disable telnet access (if possible via device configuration) or to isolate the camera on a separate network segment that is not accessible from untrusted networks. If the device cannot be updated or secured, replacement with a supported product is recommended.