Vulnerability in LOGO! 8 BM and Soft Comfort by Siemens
CVE-2020-25234

7.7HIGH

Key Information:

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

Summary

A security vulnerability has been found in Siemens LOGO! 8 BM and LOGO! Soft Comfort. The affected software allows users to save user-defined functions (UDF) with password protection. However, due to the way program files are generated and displayed, attackers can reverse engineer these UDFs directly from the stored program files, potentially exposing sensitive information. This vulnerability highlights the need for robust security practices in the use of programmable logic controllers.

Affected Version(s)

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

LOGO! Soft Comfort All versions < V8.3

References

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

CVSS V3.1

Score:
7.7
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.