medium
6.5
CWE
522
Advisory Published
Updated

CVE-2020-15791

First published: Wed Sep 09 2020(Updated: )

A vulnerability has been identified in SIMATIC S7-300 CPU family (incl. related ET200 CPUs and SIPLUS variants) (All versions), SIMATIC S7-400 CPU family (incl. SIPLUS variants) (All versions), SIMATIC WinAC RTX (F) 2010 (All versions), SINUMERIK 840D sl (All versions). The authentication protocol between a client and a PLC via port 102/tcp (ISO-TSAP) insufficiently protects the transmitted password. This could allow an attacker that is able to intercept the network traffic to obtain valid PLC credentials.

Credit: productcert@siemens.com

Affected SoftwareAffected VersionHow to fix
Siemens Simatic S7-300 Cpu 312 Firmware
Siemens Simatic S7-300 Cpu 312
Siemens Simatic S7-300 Cpu 314 Firmware
Siemens Simatic S7-300 Cpu 314
Siemens Simatic S7-300 Cpu 315-2 Dp Firmware
Siemens Simatic S7-300 Cpu 315-2 Dp
Siemens Simatic S7-300 Cpu 315-2 Pn Firmware
Siemens Simatic S7-300 Cpu 315-2 Pn
Siemens Simatic S7-300 Cpu 317-2 Pn Firmware
Siemens Simatic S7-300 Cpu 317-2 Pn
Siemens Simatic S7-300 Cpu 317-2 Dp Firmware
Siemens Simatic S7-300 Cpu 317-2 Dp
Siemens Simatic S7-300 Cpu 315f-2 Dp Firmware
Siemens Simatic S7-300 Cpu 315f-2 Dp
Siemens Simatic S7-300 Cpu 315f-2 Pn Firmware
Siemens Simatic S7-300 Cpu 315f-2 Pn
Siemens Simatic S7-300 Cpu 317f-2 Pn Firmware
Siemens Simatic S7-300 Cpu 317f-2 Pn
Siemens Simatic S7-300 Cpu 317f-2 Dp Firmware
Siemens Simatic S7-300 Cpu 317f-2 Dp
Siemens Simatic S7-400 Cpu 412 Firmware
Siemens Simatic S7-400 Cpu 412
Siemens Simatic S7-400 Cpu 414 Firmware
Siemens Simatic S7-400 Cpu 414
Siemens Simatic S7-400 Cpu 416 Firmware
Siemens Simatic S7-400 Cpu 416
Siemens Simatic S7-400 Cpu 417 Firmware
Siemens Simatic S7-400 Cpu 417

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Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2020-15791?

    The severity of CVE-2020-15791 is medium with a CVSS score of 6.5.

  • What software versions are affected by CVE-2020-15791?

    CVE-2020-15791 affects SIMATIC S7-300 CPU family, SIMATIC S7-400 CPU family, SIMATIC WinAC RTX (F) 2010, and SINUMERIK 840D sl.

  • How does CVE-2020-15791 impact Siemens Simatic S7-300 Cpu 312?

    Siemens Simatic S7-300 Cpu 312 is not vulnerable to CVE-2020-15791.

  • What is the Common Weakness Enumeration (CWE) ID of CVE-2020-15791?

    The Common Weakness Enumeration (CWE) ID of CVE-2020-15791 is 522.

  • How can I fix CVE-2020-15791?

    To fix CVE-2020-15791, it is recommended to apply the security patches provided by Siemens.

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