CVE-2020-25231 Explained : Impact and Mitigation

A vulnerability has been identified in LOGO! 8 BM (incl. SIPLUS variants) and LOGO! Soft Comfort versions below V8.3, where the encryption of program data uses a static key, potentially allowing attackers to extract confidential information.

Understanding CVE-2020-25231

This CVE involves a vulnerability in Siemens' LOGO! 8 BM and LOGO! Soft Comfort products due to the use of a hard-coded cryptographic key.

What is CVE-2020-25231?

The vulnerability in LOGO! 8 BM and LOGO! Soft Comfort allows attackers to exploit a static key used for encrypting program data, enabling them to access protected program files.

The Impact of CVE-2020-25231

The exploitation of this vulnerability could lead to unauthorized access to confidential information stored in the affected devices, compromising data integrity and confidentiality.

Technical Details of CVE-2020-25231

This section provides detailed technical information about the vulnerability.

Vulnerability Description

The vulnerability arises from the use of a static key for encrypting program data in LOGO! 8 BM and LOGO! Soft Comfort, making it susceptible to extraction by malicious actors.

Affected Systems and Versions

Product: LOGO! 8 BM (incl. SIPLUS variants)
Vendor: Siemens
Affected Versions: All versions < V8.3
Product: LOGO! Soft Comfort
Vendor: Siemens
Affected Versions: All versions < V8.3

Exploitation Mechanism

Attackers can exploit the static key used for encryption to extract confidential information from protected program files on the affected devices.

Mitigation and Prevention

To address CVE-2020-25231, follow these mitigation strategies:

Immediate Steps to Take

Update affected devices to version V8.3 or higher to eliminate the vulnerability.
Implement network segmentation to restrict access to vulnerable devices.
Monitor and analyze network traffic for any suspicious activities.

Long-Term Security Practices

Regularly update and patch software to address security vulnerabilities.
Conduct security training for employees to enhance awareness of potential threats.

Patching and Updates

Siemens may release patches or updates to address the vulnerability; ensure timely installation to secure the devices.