high
7.5
CWE
400
Advisory Published
Updated

CVE-2019-13940

First published: Tue Feb 11 2020(Updated: )

A vulnerability has been identified in SIMATIC ET 200pro IM154-8 PN/DP CPU (All versions < V3.X.17), SIMATIC ET 200pro IM154-8F PN/DP CPU (All versions < V3.X.17), SIMATIC ET 200pro IM154-8FX PN/DP CPU (All versions < V3.X.17), SIMATIC ET 200S IM151-8 PN/DP CPU (All versions < V3.X.17), SIMATIC ET 200S IM151-8F PN/DP CPU (All versions < V3.X.17), SIMATIC S7-1200 CPU family (incl. SIPLUS variants) (All versions < V4.1), SIMATIC S7-300 CPU 314C-2 PN/DP (All versions < V3.X.17), SIMATIC S7-300 CPU 315-2 PN/DP (All versions < V3.X.17), SIMATIC S7-300 CPU 315F-2 PN/DP (All versions < V3.X.17), SIMATIC S7-300 CPU 315T-3 PN/DP (All versions < V3.X.17), SIMATIC S7-300 CPU 317-2 PN/DP (All versions < V3.X.17), SIMATIC S7-300 CPU 317F-2 PN/DP (All versions < V3.X.17), SIMATIC S7-300 CPU 317T-3 PN/DP (All versions < V3.X.17), SIMATIC S7-300 CPU 317TF-3 PN/DP (All versions < V3.X.17), SIMATIC S7-300 CPU 319-3 PN/DP (All versions < V3.X.17), SIMATIC S7-300 CPU 319F-3 PN/DP (All versions < V3.X.17), SIMATIC S7-400 PN/DP V6 and below CPU family (incl. SIPLUS variants) (All versions), SIMATIC S7-400 PN/DP V7 CPU family (incl. SIPLUS variants) (All versions), SIMATIC WinAC RTX 2010 (All versions), SIMATIC WinAC RTX F 2010 (All versions), SIPLUS ET 200S IM151-8 PN/DP CPU (All versions < V3.X.17), SIPLUS ET 200S IM151-8F PN/DP CPU (All versions < V3.X.17), SIPLUS S7-300 CPU 314C-2 PN/DP (All versions < V3.X.17), SIPLUS S7-300 CPU 315-2 PN/DP (All versions < V3.X.17), SIPLUS S7-300 CPU 315F-2 PN/DP (All versions < V3.X.17), SIPLUS S7-300 CPU 317-2 PN/DP (All versions < V3.X.17), SIPLUS S7-300 CPU 317F-2 PN/DP (All versions < V3.X.17). Affected devices contain a vulnerability that could cause a denial of service condition of the web server by sending specially crafted HTTP requests to ports 80/tcp and 443/tcp. Beyond the web service, no other functions or interfaces are affected by the denial of service condition.

Credit: productcert@siemens.com

Affected SoftwareAffected VersionHow to fix
Siemens Simatic S7-1200 CPU 1211C Firmware<4.1
Siemens CPU 1211C Firmware
Siemens S7-1200 CPU 1212C Firmware<4.1
Siemens S7-1200 CPU 1212C Firmware
Siemens CPU 1214C Firmware<4.1
Siemens CPU 1214C Firmware
Siemens S7-1200 CPU 1215C<4.1
Siemens S7-1200 CPU 1215C Firmware
Siemens CPU 1217C Firmware<4.1
Siemens Simatic S7-1200 CPU 1217C
Siemens S7-1200 CPU 1212FC Firmware<4.1
Siemens S7-1200 CPU 1212FC Firmware
Siemens CPU 1214FC Firmware<4.1
Siemens CPU 1214FC Firmware
Siemens Simatic S7-1200 CPU Firmware<4.1
Siemens S7-1200 CPU 1215FC Firmware
Siemens SIPLUS S7-1200<4.1
Siemens S7-1200 PLC
Siemens SIPLUS CPU 1211c<4.1
Siemens S7-1200 CPU 1211C
Siemens SIPLUS CPU 1212C<4.1
siemens SIPLUS CPU 1212c firmware
Siemens SIPLUS CPU 1214c<=4.1
Siemens SIPLUS CPU 1214c
Siemens SIPLUS CPU 1215c Firmware<4.1
Siemens SIPLUS CPU 1215c Firmware
Siemens SIMATIC S7-300 CPU 319-3 PN/DP Firmware
Siemens SIMATIC S7-300 CPU 319-3 PN/DP
Siemens SIMATIC S7-300 CPU 315-2 DP firmware
Siemens SIMATIC S7-300 CPU 315-2 PN Firmware
siemens SIMATIC S7-300 CPU 315-2 pn/dp firmware
Siemens SIMATIC S7-300 CPU 315-2 PN/DP
Siemens SIMATIC S7-300 CPU 317-2 DP
Siemens SIMATIC S7-300 CPU 317-2 PN/DP
Siemens SIMATIC S7-300 CPU 317-2 PN/DP firmware
Siemens SIMATIC S7-300 CPU 317-2 PN/DP
siemens SIPLUS S7-300 CPU 314
siemens SIPLUS S7-300 CPU 314
siemens SIPLUS S7-300 CPU 315-2 pn/dp firmware
Siemens S7-300 CPU 315-2 DP
siemens SIPLUS S7-300 CPU 315-2 pn/dp firmware
siemens SIPLUS S7-300 CPU 315-2 pn/dp
siemens SIPLUS S7-300 CPU 317-2 pn/dp firmware
siemens SIPLUS S7-300 CPU 317-2 pn/dp=v6
Siemens SIMATIC S7-400 PN/DP CPU Firmware
Siemens SIMATIC S7-400 PN/DP CPU=v7
Siemens Simatic Winac RTX (F) 2010

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Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2019-13940?

    The severity of CVE-2019-13940 is high with a severity value of 7.5.

  • Which software versions are affected by CVE-2019-13940?

    SIMATIC ET 200pro IM154-8 PN/DP CPU (All versions < V3.X.17), SIMATIC ET 200pro IM154-8F PN/DP CPU (All versions < V3.X.17), SIMATIC ET 200pro IM154-8FX PN/DP CPU (All versions < V3.X.17), SIMATIC ET 200S IM151-8 PN/DP CPU (All versions < V3.X.17).

  • How can I fix CVE-2019-13940?

    Apply the recommended security patch or upgrade to a version equal to or greater than V3.X.17.

  • What is the CVE ID for this vulnerability?

    The CVE ID for this vulnerability is CVE-2019-13940.

  • Where can I find more information about CVE-2019-13940?

    You can find more information about CVE-2019-13940 in the Siemens Product CERT advisory at the following link: [https://cert-portal.siemens.com/productcert/pdf/ssa-431678.pdf]

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