CVE-2020-28397

Description

A vulnerability has been identified in SIMATIC Drive Controller family (All versions < V2.9.2), SIMATIC ET 200SP Open Controller CPU 1515SP PC2 (incl. SIPLUS variants) (All versions < V21.9), SIMATIC S7 PLCSIM Advanced (All versions > V2 < V4), SIMATIC S7-1200 CPU family (incl. SIPLUS variants) (Version V4.4), SIMATIC S7-1500 CPU family (incl. related ET200 CPUs and SIPLUS variants) (All versions > V2.5 < V2.9.2), SIMATIC S7-1500 Software Controller (All versions > V2.5 < V21.9), TIM 1531 IRC (incl. SIPLUS NET variants) (Version V2.1). Due to an incorrect authorization check in the affected component, an attacker could extract information about access protected PLC program variables over port 102/tcp from an affected device when reading multiple attributes at once.

Category

5.3
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.18%
Vendor Advisory siemens.com
Affected: Siemens SIMATIC Drive Controller family
Affected: Siemens SIMATIC ET 200SP Open Controller CPU 1515SP PC2 (incl. SIPLUS variants)
Affected: Siemens SIMATIC S7 PLCSIM Advanced
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 TIM 1531 IRC (incl. SIPLUS NET variants)
Published at:
Updated at:

References

Link Tags
https://cert-portal.siemens.com/productcert/pdf/ssa-865327.pdf patch vendor advisory

Frequently Asked Questions

What is the severity of CVE-2020-28397?
CVE-2020-28397 has been scored as a medium severity vulnerability.
How to fix CVE-2020-28397?
To fix CVE-2020-28397, 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-2020-28397 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2020-28397 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-2020-28397?
CVE-2020-28397 affects Siemens SIMATIC Drive Controller family, Siemens SIMATIC ET 200SP Open Controller CPU 1515SP PC2 (incl. SIPLUS variants), Siemens SIMATIC S7 PLCSIM Advanced, 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 TIM 1531 IRC (incl. SIPLUS NET variants).
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