Skip to content
OpenAdvisories
High SSA-549234 1 CVE

SSA-549234: Denial-of-Service Vulnerability in SIMATIC NET CP Modules

Published Sep 14, 2021 · Updated Apr 11, 2023 · Revision 4

Vendor: Siemens Product: SIMATIC CP 343-1 (incl. SIPLUS variants) Product: SIMATIC CP 343-1 Advanced (incl. SIPLUS variants) Product: SIMATIC CP 343-1 ERPC (6GK7343-1FX00-0XE0) Product: SIMATIC CP 343-1 Lean (incl. SIPLUS variants) Product: SIMATIC CP 443-1 (6GK7443-1EX30-0XE0) Product: SIMATIC CP 443-1 (6GK7443-1EX30-0XE1) Product: SIMATIC CP 443-1 Advanced (6GK7443-1GX30-0XE0) Product: SIPLUS NET CP 443-1 (6AG1443-1EX30-4XE0) Product: SIPLUS NET CP 443-1 Advanced (6AG1443-1GX30-4XE0)

Summary

A denial of service vulnerability was identified in different types of Communication Processors. An attacker could exploit this vulnerability causing the device to become un-operational until the device is restarted.

Siemens has released updates for several affected products and recommends to update to the latest versions. Siemens recommends specific countermeasures for products where updates are not, or not yet available.

Vulnerabilities 1

Revision history

  1. #4

    Added fix for SIMATIC CP 443-1 and CP 443-1 Advanced

  2. #3

    Specifically added that SIMATIC CP 443-1 Advanced devices do not have any fix planned

  3. #2

    Specifically added that SIMATIC CP 343-1 devices do not have any fix planned

  4. #1

    Publication Date

References