CVE-2019-10919 : Exploit Details and Defense Strategies

A weakness has been discovered in LOGO! 8 BM (including SIPLUS variants) (All versions < V8.3) by Siemens. Malicious individuals with access to port 10005/tcp can modify device configurations and retrieve project files without user interaction, impacting device confidentiality, integrity, and availability.

Understanding CVE-2019-10919

This CVE identifies a vulnerability in Siemens' LOGO! 8 BM (incl. SIPLUS variants) affecting versions below V8.3.

What is CVE-2019-10919?

The vulnerability allows unauthorized attackers to manipulate device settings and access project files via port 10005/tcp without authentication, posing risks to device security.

The Impact of CVE-2019-10919

Attackers can compromise device confidentiality, integrity, and availability by exploiting this vulnerability.
No instances of public exploitation have been reported as of the advisory publication.

Technical Details of CVE-2019-10919

Siemens LOGO! 8 BM vulnerability details.

Vulnerability Description

CWE-306: Missing Authentication for Critical Function
Attackers can reconfigure devices and retrieve project files via port 10005/tcp without authentication.

Affected Systems and Versions

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

Exploitation Mechanism

Unauthorized attackers with network access to port 10005/tcp can exploit the vulnerability without user interaction.

Mitigation and Prevention

Protecting systems from CVE-2019-10919.

Immediate Steps to Take

Secure access to port 10005/tcp to prevent unauthorized manipulation.
Monitor network traffic for any suspicious activities.

Long-Term Security Practices

Implement network segmentation to restrict access to critical ports.
Regularly update device firmware and security patches.

Patching and Updates

Siemens may release patches or updates to address this vulnerability.