CVE-2019-13940

Description

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.

Category

5.3
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.60%
Vendor Advisory siemens.com
Affected: Siemens SIMATIC ET 200pro IM154-8 PN/DP CPU
Affected: Siemens SIMATIC ET 200pro IM154-8F PN/DP CPU
Affected: Siemens SIMATIC ET 200pro IM154-8FX PN/DP CPU
Affected: Siemens SIMATIC ET 200S IM151-8 PN/DP CPU
Affected: Siemens SIMATIC ET 200S IM151-8F PN/DP CPU
Affected: Siemens SIMATIC S7-1200 CPU family (incl. SIPLUS variants)
Affected: Siemens SIMATIC S7-300 CPU 314C-2 PN/DP
Affected: Siemens SIMATIC S7-300 CPU 315-2 PN/DP
Affected: Siemens SIMATIC S7-300 CPU 315F-2 PN/DP
Affected: Siemens SIMATIC S7-300 CPU 315T-3 PN/DP
Affected: Siemens SIMATIC S7-300 CPU 317-2 PN/DP
Affected: Siemens SIMATIC S7-300 CPU 317F-2 PN/DP
Affected: Siemens SIMATIC S7-300 CPU 317T-3 PN/DP
Affected: Siemens SIMATIC S7-300 CPU 317TF-3 PN/DP
Affected: Siemens SIMATIC S7-300 CPU 319-3 PN/DP
Affected: Siemens SIMATIC S7-300 CPU 319F-3 PN/DP
Affected: Siemens SIMATIC S7-400 PN/DP V6 and below CPU family (incl. SIPLUS variants)
Affected: Siemens SIMATIC S7-400 PN/DP V7 CPU family (incl. SIPLUS variants)
Affected: Siemens SIMATIC WinAC RTX 2010
Affected: Siemens SIMATIC WinAC RTX F 2010
Affected: Siemens SIPLUS ET 200S IM151-8 PN/DP CPU
Affected: Siemens SIPLUS ET 200S IM151-8F PN/DP CPU
Affected: Siemens SIPLUS S7-300 CPU 314C-2 PN/DP
Affected: Siemens SIPLUS S7-300 CPU 315-2 PN/DP
Affected: Siemens SIPLUS S7-300 CPU 315F-2 PN/DP
Affected: Siemens SIPLUS S7-300 CPU 317-2 PN/DP
Affected: Siemens SIPLUS S7-300 CPU 317F-2 PN/DP
Published at:
Updated at:

References

Link Tags
https://cert-portal.siemens.com/productcert/pdf/ssa-431678.pdf vendor advisory

Frequently Asked Questions

What is the severity of CVE-2019-13940?
CVE-2019-13940 has been scored as a medium severity vulnerability.
How to fix CVE-2019-13940?
To fix CVE-2019-13940, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2019-13940 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2019-13940 is being actively exploited. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2019-13940?
CVE-2019-13940 affects Siemens SIMATIC ET 200pro IM154-8 PN/DP CPU, Siemens SIMATIC ET 200pro IM154-8F PN/DP CPU, Siemens SIMATIC ET 200pro IM154-8FX PN/DP CPU, Siemens SIMATIC ET 200S IM151-8 PN/DP CPU, Siemens SIMATIC ET 200S IM151-8F PN/DP CPU, Siemens SIMATIC S7-1200 CPU family (incl. SIPLUS variants), Siemens SIMATIC S7-300 CPU 314C-2 PN/DP, Siemens SIMATIC S7-300 CPU 315-2 PN/DP, Siemens SIMATIC S7-300 CPU 315F-2 PN/DP, Siemens SIMATIC S7-300 CPU 315T-3 PN/DP, Siemens SIMATIC S7-300 CPU 317-2 PN/DP, Siemens SIMATIC S7-300 CPU 317F-2 PN/DP, Siemens SIMATIC S7-300 CPU 317T-3 PN/DP, Siemens SIMATIC S7-300 CPU 317TF-3 PN/DP, Siemens SIMATIC S7-300 CPU 319-3 PN/DP, Siemens SIMATIC S7-300 CPU 319F-3 PN/DP, Siemens SIMATIC S7-400 PN/DP V6 and below CPU family (incl. SIPLUS variants), Siemens SIMATIC S7-400 PN/DP V7 CPU family (incl. SIPLUS variants), Siemens SIMATIC WinAC RTX 2010, Siemens SIMATIC WinAC RTX F 2010, Siemens SIPLUS ET 200S IM151-8 PN/DP CPU, Siemens SIPLUS ET 200S IM151-8F PN/DP CPU, Siemens SIPLUS S7-300 CPU 314C-2 PN/DP, Siemens SIPLUS S7-300 CPU 315-2 PN/DP, Siemens SIPLUS S7-300 CPU 315F-2 PN/DP, Siemens SIPLUS S7-300 CPU 317-2 PN/DP, Siemens SIPLUS S7-300 CPU 317F-2 PN/DP.
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