CVE-2022-38465

Description

A vulnerability has been identified in SIMATIC Drive Controller family (All versions < V2.9.2), SIMATIC ET 200SP Open Controller CPU 1515SP PC (incl. SIPLUS variants) (All versions), SIMATIC ET 200SP Open Controller CPU 1515SP PC2 (incl. SIPLUS variants) (All versions < V21.9), SIMATIC S7-1200 CPU family (incl. SIPLUS variants) (All versions < V4.5.0), SIMATIC S7-1500 CPU family (incl. related ET200 CPUs and SIPLUS variants) (All versions < V2.9.2), SIMATIC S7-1500 Software Controller (All versions < V21.9), SIMATIC S7-PLCSIM Advanced (All versions < V4.0), SINUMERIK MC (All versions < V6.21), SINUMERIK ONE (All versions < V6.21). Affected products protect the built-in global private key in a way that cannot be considered sufficient any longer. The key is used for the legacy protection of confidential configuration data and the legacy PG/PC and HMI communication. This could allow attackers to discover the private key of a CPU product family by an offline attack against a single CPU of the family. Attackers could then use this knowledge to extract confidential configuration data from projects that are protected by that key or to perform attacks against legacy PG/PC and HMI communication.

Category

9.3
CVSS
Severity: Critical
CVSS 3.1 •
EPSS 0.08%
Vendor Advisory siemens.com
Affected: Siemens SIMATIC Drive Controller family
Affected: Siemens SIMATIC ET 200SP Open Controller CPU 1515SP PC (incl. SIPLUS variants)
Affected: Siemens SIMATIC ET 200SP Open Controller CPU 1515SP PC2 (incl. SIPLUS variants)
Affected: Siemens SIMATIC S7-1200 CPU family (incl. SIPLUS variants)
Affected: Siemens SIMATIC S7-1500 CPU family (incl. related ET200 CPUs and SIPLUS variants)
Affected: Siemens SIMATIC S7-1500 Software Controller
Affected: Siemens SIMATIC S7-PLCSIM Advanced
Affected: Siemens SINUMERIK MC
Affected: Siemens SINUMERIK ONE
Published at:
Updated at:

References

Link Tags
https://cert-portal.siemens.com/productcert/pdf/ssa-568427.pdf vendor advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-568428.pdf

Frequently Asked Questions

What is the severity of CVE-2022-38465?
CVE-2022-38465 has been scored as a critical severity vulnerability.
How to fix CVE-2022-38465?
To fix CVE-2022-38465, 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-2022-38465 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2022-38465 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2022-38465?
CVE-2022-38465 affects Siemens SIMATIC Drive Controller family, Siemens SIMATIC ET 200SP Open Controller CPU 1515SP PC (incl. SIPLUS variants), Siemens SIMATIC ET 200SP Open Controller CPU 1515SP PC2 (incl. SIPLUS variants), Siemens SIMATIC S7-1200 CPU family (incl. SIPLUS variants), Siemens SIMATIC S7-1500 CPU family (incl. related ET200 CPUs and SIPLUS variants), Siemens SIMATIC S7-1500 Software Controller, Siemens SIMATIC S7-PLCSIM Advanced, Siemens SINUMERIK MC, Siemens SINUMERIK ONE.
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