Incomplete Firmware Signature Allows Local Attackers to Upgrade Belden Hirschmann Tofino Xenon Security Appliance with Unsigned Data

CVE-2017-11400 · HIGH Severity

AV:L/AC:L/AU:N/C:C/I:C/A:C

An issue has been discovered on the Belden Hirschmann Tofino Xenon Security Appliance before 03.2.00. An incomplete firmware signature allows a local attacker to upgrade the equipment (kernel, file system) with unsigned, attacker-controlled, data. This occurs because the appliance_config file is signed but the .tar.sec file is unsigned.

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