Incomplete Fix of CVE-2017-11401 Allows Bypass of ModBus Enforcer on Schneider Electric ConneXium Tofino Firewall and Belden Tofino Xenon Security Appliance

CVE-2021-30065 · HIGH Severity

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

On Schneider Electric ConneXium Tofino Firewall TCSEFEA23F3F22 before 03.23, TCSEFEA23F3F20/21, and Belden Tofino Xenon Security Appliance, crafted ModBus packets can bypass the ModBus enforcer. NOTE: this issue exists because of an incomplete fix of CVE-2017-11401.

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