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CVE-2018-10603: Martem Telem Gwm Firmware: Missing Authentication for Critical Functionality

CVE-2018-10603 is rated critical with a CVSS v3.0 base score of 9.8 and NVD lists 2 affected products, including Martem Telem Gwm Firmware. Per its scoring, it can be exploited over the network, without authentication, without any user interaction. The scored impact on confidentiality, integrity and availability is the highest available.

Vulnerability description

Martem TELEM GW6 and GWM devices with firmware 2018.04.18-linux_4-01-601cb47 and prior do not perform authentication of IEC-104 control commands, which may allow a rogue node a remote control of the industrial process.

Severity breakdown

CVSS v3.0 9.8: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack vector: Network. Exploitable remotely over the network, with no need for local or physical access.
Attack complexity: Low. No special conditions; the attack can be repeated reliably.
Privileges required: None. No account or prior access is needed.
User interaction: None. No action from any user is needed.
Scope: Unchanged. Impact stays within the vulnerable component.
Confidentiality impact: High. Total loss of confidentiality; sensitive data can be fully disclosed.
Integrity impact: High. Total loss of integrity; data or system state can be fully modified.
Availability impact: High. Total loss of availability; the component can be shut down.

Underlying weakness

CWE-306: Missing Authentication for Critical Functionality

The product does not perform any authentication for functionality that requires a provable user identity or consumes a significant amount of resources.

CWE-287: Improper Authentication

When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.

Affected products

Martem Telem Gwm Firmware: up to and including 2018.04.18-linux_4-01-601cb47
Martem Telem Gw6 Firmware: up to and including 2018.04.18-linux_4-01-601cb47