TCP Sequence Number Validation Vulnerability in SIMATIC MV400 Family (All Versions < V7.0.6)

TCP Sequence Number Validation Vulnerability in SIMATIC MV400 Family (All Versions < V7.0.6)

CVE-2020-25241 · HIGH Severity

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

A vulnerability has been identified in SIMATIC MV400 family (All Versions < V7.0.6). The underlying TCP stack of the affected products does not correctly validate the sequence number for incoming TCP RST packages. An attacker could exploit this to terminate arbitrary TCP sessions.

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