CVE-2019-13924 : Exploit Details and Defense Strategies

A security issue has been discovered in various versions of SCALANCE S602, SCALANCE S612, SCALANCE S623, SCALANCE S627-2M, SCALANCE X-200 switch family, SCALANCE X-200IRT switch family, SCALANCE X-200RNA switch family, and SCALANCE X-300 switch family. The vulnerability allows for Clickjacking attacks due to the absence of the X-Frame-Option Header in the administrative web interface.

Understanding CVE-2019-13924

This CVE identifies a vulnerability in Siemens SCALANCE devices that could be exploited for Clickjacking attacks.

What is CVE-2019-13924?

CVE-2019-13924 is a security issue affecting various Siemens SCALANCE devices, making them susceptible to Clickjacking attacks.

The Impact of CVE-2019-13924

The vulnerability could allow attackers to deceive authorized administrative users into performing unintended actions through compromised web interfaces.

Technical Details of CVE-2019-13924

Siemens SCALANCE devices are affected by a specific vulnerability that exposes them to Clickjacking attacks.

Vulnerability Description

The affected devices lack the X-Frame-Option Header in their administrative web interface, enabling attackers to conduct Clickjacking attacks.

Affected Systems and Versions

SCALANCE S602: All versions < V4.1
SCALANCE S612: All versions < V4.1
SCALANCE S623: All versions < V4.1
SCALANCE S627-2M: All versions < V4.1
SCALANCE X-200 switch family (incl. SIPLUS NET variants): All versions < 5.2.4
SCALANCE X-200IRT switch family (incl. SIPLUS NET variants): All versions < V5.5.0
SCALANCE X-200RNA switch family: All versions < V3.2.7
SCALANCE X-300 switch family (incl. X408 and SIPLUS NET variants): All versions < 4.1.3

Exploitation Mechanism

Exploiting this vulnerability requires deceiving authorized administrative users into visiting a malicious website controlled by the attacker.

Mitigation and Prevention

Steps to address and prevent the CVE-2019-13924 vulnerability.

Immediate Steps to Take

Implement security awareness training to educate users about Clickjacking attacks.
Regularly monitor network traffic for suspicious activities.
Configure web servers to include the X-Frame-Options header to mitigate Clickjacking risks.

Long-Term Security Practices

Keep systems up to date with the latest security patches and updates.
Conduct regular security assessments and penetration testing to identify and address vulnerabilities.

Patching and Updates

Apply the necessary patches and updates provided by Siemens to address the vulnerability in the affected SCALANCE devices.