Home/CVE/A vulnerability has been identified in SIMATIC Drive Controller family (All versions < V2.9.2), SIMATIC ET 200SP Open Co
CVE

CVE-2022-38465

A vulnerability has been identified in SIMATIC Drive Controller family (All versions < V2.9.2), SIMATIC ET 200SP Open Co

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.

CRITICAL · CVSS 9.3 EPSS 0.00155
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-522Insufficiently Protected Credentials
▤

Affected Products & Versions

45
siemens simatic et 200 sp open controller cpu 1515sp pc2 firmware< 21.9
siemens simatic et 200 sp open controller cpu 1515sp pc firmwareall versions
siemens simatic drive controller cpu 1504d tf firmware< 2.9.2
siemens simatic drive controller cpu 1507d tf firmware< 2.9.2
siemens simatic s7-1200 cpu 12 1211c firmware< 4.5.0
siemens simatic s7-1200 cpu 12 1212c firmware< 4.5.0
siemens simatic s7-1200 cpu 12 1212fc firmware< 4.5.0
siemens simatic s7-1200 cpu 12 1214fc firmware< 4.5.0
▣

Scoring & Timeline

9.3
CRITICAL · CVSS v3.1 · productcert@siemens.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD11 Oct 2022 · 11:15 AM
CVSS VectorCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
no
Technical impact
total
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
⚑

Vendor Advisories

4
siemens-csafSSA-568428
siemens-csafSSA-568427
cisa-csafcisa-csaf-csaf_files-OT-white-2022-icsa-22-286-04
cisa-csafcisa-csaf-csaf_files-OT-white-2022-icsa-22-314-04
🔗

References & Sources

2
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://cert-portal.siemens.com/productcert/pdf/ssa-568427.pdfVendor Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-568428.pdf
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