Weakness in Encryption Implementation in LOGO! 8 BM from Siemens
CVE-2020-25233

5.5MEDIUM

Key Information:

Vendor

Siemens
Status
Logo! 8 Bm (incl. Siplus Variants)
Vendor
CVE Published:
14 December 2020

What is CVE-2020-25233?

A vulnerability has been discovered in the LOGO! 8 BM series, including its SIPLUS variants, where firmware versions prior to V8.3 contain a private RSA key embedded within. This exposure can potentially allow unauthorized parties to decrypt communications with the device, leading to possible data integrity and confidentiality breaches.

Affected Version(s)

LOGO! 8 BM (incl. SIPLUS variants) All versions < V8.3

References

https://cert-portal.siemens.com/productcert/pdf/ssa-48082...
x_refsource_MISC

CVSS V3.1

Score:
5.5
Severity:
MEDIUM
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.