Siemens TCP Stack of SIMATIC MV400

Vulnerabilities 2

• Unscored —
  CVE-2020-25241

  A vulnerability has been identified in SIMATIC MV400 family (All Versions < V7.0.6). The underlying TCP stack of the af…

  Siemens SIMATIC MV400 family ICS / OT
  Mar 15, 2021
• Unscored —
  CVE-2020-27632

  In SIMATIC MV400 family versions prior to v7.0.6, the ISN generator is initialized with a constant value and has consta…

  Mar 10, 2021

Revision history

1. 2021-03-09 #1

   Publication Date

References

• SSA-599268: Several Vulnerabilities in TCP Stack of SIMATIC MV400 family - HTML Version
  https://cert-portal.siemens.com/productcert/html/ssa-599268.html
• ICS Advisory ICSA-21-068-07 - Web Version
  https://www.cisa.gov/news-events/ics-advisories/icsa-21-068-07
• Recommended Practices
  https://www.cisa.gov/uscert/ics/alerts/ICS-ALERT-10-301-01
• Recommended Practices
  https://www.cisa.gov/resources-tools/resources/ics-recommended-practices
• Recommended Practices
  https://www.cisa.gov/topics/industrial-control-systems
• Recommended Practices
  https://us-cert.cisa.gov/sites/default/files/recommended_practices/NCCIC_ICS-CERT_Defense_in_Depth_2016_S508C.pdf
• Recommended Practices
  https://www.cisa.gov/sites/default/files/publications/Cybersecurity_Best_Practices_for_Industrial_Control_Systems.pdf
• Recommended Practices
  https://www.cisa.gov/uscert/ics/tips/ICS-TIP-12-146-01B