Security Flaw in SCALANCE X-200RNA and X-300 Switch Families by Siemens
CVE-2020-28395

5.9MEDIUM

Key Information:

Vendor
Siemens
Status
Scalance X-200rna Switch Family
Scalance X-300 Switch Family (incl. X408 And Siplus Net Variants)
Vendor
CVE Published:
12 January 2021

Summary

A flaw exists in the SCALANCE X-200RNA and X-300 switch families due to the failure of these devices to generate a new unique private key after a factory reset. This vulnerability can be exploited by an attacker to perform man-in-the-middle attacks, allowing them to intercept and decrypt previously captured traffic, potentially compromising sensitive data.

Affected Version(s)

SCALANCE X-200RNA switch family All versions < V3.2.7

SCALANCE X-300 switch family (incl. X408 and SIPLUS NET variants) All versions < V4.1.0

References

https://cert-portal.siemens.com/productcert/pdf/ssa-27490...
https://us-cert.cisa.gov/ics/advisories/icsa-21-012-02

CVSS V3.1

Score:
5.9
Severity:
MEDIUM
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
High
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.