CVE-2019-6571 Explained : Impact and Mitigation

A vulnerability has been discovered in the SIEMENS LOGO!8 devices that could potentially lead to a Denial-of-Service situation. Attackers gaining network access to specific ports can exploit this vulnerability.

Understanding CVE-2019-6571

This CVE identifies a security flaw in SIEMENS LOGO!8 devices that could be exploited by unauthorized network access.

What is CVE-2019-6571?

The vulnerability in SIEMENS LOGO!8 devices allows attackers to cause a Denial-of-Service scenario by sending crafted packets to the device's port 10005/tcp.

The Impact of CVE-2019-6571

Unauthorized attackers can exploit the vulnerability without user interaction
Successful exploitation can compromise the availability of the targeted system
No known instances of public exploitation at the time of advisory publication

Technical Details of CVE-2019-6571

This section provides detailed technical information about the CVE.

Vulnerability Description

The vulnerability is due to improper handling of network traffic on specific ports, allowing attackers to disrupt the device's availability.

Affected Systems and Versions

SIEMENS LOGO!8 (6ED1052-xyyxx-0BA8 FS:01 to FS:06 / Firmware version V1.80.xx and V1.81.xx)
SIEMENS LOGO!8 (6ED1052-xyy08-0BA0 FS:01 / Firmware version < V1.82.02)

Exploitation Mechanism

Attackers gain network access to port 10005/tcp
Send specially crafted packets to the LOGO! device
No authentication required for exploitation

Mitigation and Prevention

Protecting systems from CVE-2019-6571 requires immediate actions and long-term security practices.

Immediate Steps to Take

Monitor network traffic for any suspicious activities on port 10005/tcp
Implement access controls to restrict unauthorized access

Long-Term Security Practices

Regularly update firmware to patch known vulnerabilities
Conduct security assessments to identify and mitigate potential risks

Patching and Updates

Apply firmware updates provided by Siemens to address the vulnerability