Hard-Coded Password Vulnerability in Siemens CP-8031 and CP-8050 Master Modules
CVE-2023-33920

6.8MEDIUM

Key Information:

Vendor
Siemens
Status
Cp-8031 Master Module
Cp-8050 Master Module
Vendor
CVE Published:
13 June 2023

Summary

A security flaw has been identified in the CP-8031 and CP-8050 Master Modules from Siemens, where the root password is hard-coded within the device firmware. This flaw exposes the modules to potential exploitation, particularly through UART console access for attackers with direct physical access. Any unauthorized individual gaining access to the hardware could exploit this weakness, leading to unauthorized control over the affected systems. It's crucial for users of these devices to ensure they are running the latest firmware versions to mitigate this risk.

Affected Version(s)

CP-8031 MASTER MODULE All versions < CPCI85 V05

CP-8050 MASTER MODULE All versions < CPCI85 V05

References

https://cert-portal.siemens.com/productcert/pdf/ssa-73191...
http://seclists.org/fulldisclosure/2023/Jul/14
http://packetstormsecurity.com/files/173370/Siemens-A8000...

CVSS V3.1

Score:
6.8
Severity:
MEDIUM
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Physical
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.