Moxa OnCell G3100-HSPA Series Firmware version 1.6 Build 17100315 and prior
- Impact: Attacker can obtain sensitive information such as administrative credentials
- Access Vector: Remote
- CVSS v3 Vector: AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Overall CVSS Score: 9.8
- CVE ID: CVE-2018-11421
- CWE ID: 213
Moxa OnCell G3100-HSPA Series devices are industrial five-band HSPA high speed IP gateways with VPN functionality
"Moxa OnCell G3100-HSPA Series version 1.6 Build 17100315 and prior use a proprietary monitoring protocol that does not provide confidentiality, integrity and authenticity security controls. All information is sent in plain text, and can be intercepted and modified. The protocol is vulnerable to remote unauthenticated disclosure of sensitive information, including the administrator's password. In certain conditions, it’s also possible to retrieve additional information, such as content of HTTP requests to the device, or the previously used password due to memory leakagaes."
Apply firmware patch from vendor.
Vulnerability was discovered by Eugenie Potseluevskaya (Kaspersky Lab).