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OpenAdvisories
High SSA-270778 1 CVE

SSA-270778: Denial-of-Service Vulnerability in SIMATIC PCS 7, SIMATIC WinCC and SIMATIC NET PC Software

Published Feb 11, 2020 · Updated Apr 11, 2023 · Revision 9

Vendor: Siemens Product: OpenPCS 7 V8.1 Product: OpenPCS 7 V8.2 Product: OpenPCS 7 V9.0 Product: SIMATIC BATCH V8.1 Product: SIMATIC BATCH V8.2 Product: SIMATIC BATCH V9.0 Product: SIMATIC NET PC Software V14 Product: SIMATIC NET PC Software V15 Product: SIMATIC NET PC Software V16 Product: SIMATIC PCS 7 V8.1 Product: SIMATIC PCS 7 V8.2 Product: SIMATIC PCS 7 V9.0 Product: SIMATIC Route Control V8.1 Product: SIMATIC Route Control V8.2 Product: SIMATIC Route Control V9.0 Product: SIMATIC WinCC (TIA Portal) V13 Product: SIMATIC WinCC (TIA Portal) V14 Product: SIMATIC WinCC (TIA Portal) V15.1 Product: SIMATIC WinCC (TIA Portal) V16 Product: SIMATIC WinCC V7.3 Product: SIMATIC WinCC V7.4 Product: SIMATIC WinCC V7.5

Summary

A Denial-of-Service vulnerability was found in SIMATIC PCS 7, SIMATIC WinCC and SIMATIC NET PC software when encrypted communication is enabled. The vulnerability could allow
an attacker with network access to cause a Denial-of-Service condition under certain circumstances (versions prior to SIMATIC WinCC V7.3 or SIMATIC PCS 7 V8.1 are not affected as encrypted communication is not an option).

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.

Note: The vulnerability is part of a shared component, used by various Siemens products (SIMATIC Communication Services - SCS). The installation of a fix version of any product also removes the vulnerability for other products on the same system, even if those products were not updated.

Vulnerabilities 1

Revision history

  1. #9

    Added fix for SIMATIC BATCH V8.2; updated fix information for OpenPCS 7 V8.2 and SIMATIC Route Control V8.2; added download links for SIMATIC PCS 7 V8.2 SP1 and V9.0 SP3

  2. #8

    Added solution for SIMATIC PCS 7 V8.2 and related components; added solution for SIMATIC NET PC Software V14 and clarified affected versions; added a note regarding shared components

  3. #7

    Added solution for SIMATIC WinCC (TIA Portal) V14

  4. #6

    Added solution for SIMATIC WinCC (TIA Portal) V15.1

  5. #5

    Added solution for SIMATIC PCS 7 V9.0

  6. #4

    Added solution for SIMATIC WinCC V7.4

  7. #3

    Added solution for SIMATIC WinCC (TIA Portal) V16

  8. #2

    Added solution for SIMATIC NET PC Software

  9. #1

    Publication Date

References