CVE-2019-19875 : What You Need to Know

A vulnerability was found in B&R Industrial Automation APROL, allowing the injection of arbitrary commands through the AprolCluster script with root privileges.

Understanding CVE-2019-19875

This CVE identifies a security flaw in B&R Industrial Automation APROL before version R4.2 V7.08, enabling the execution of arbitrary commands.

What is CVE-2019-19875?

This vulnerability permits the injection of arbitrary commands, particularly through Python scripts, by exploiting the AprolCluster script invoked using sudo, granting root-level command execution.

The Impact of CVE-2019-19875

The vulnerability poses a significant risk as attackers can execute unauthorized commands with elevated privileges, potentially leading to system compromise and unauthorized access.

Technical Details of CVE-2019-19875

This section delves into the specifics of the vulnerability.

Vulnerability Description

The flaw in B&R Industrial Automation APROL before R4.2 V7.08 allows attackers to inject arbitrary commands via Python scripts using the AprolCluster script invoked with sudo, enabling root-level command execution.

Affected Systems and Versions

Product: B&R Industrial Automation APROL
Versions Affected: Before R4.2 V7.08

Exploitation Mechanism

Attackers exploit the AprolCluster script invoked with sudo to execute arbitrary commands, leveraging Python scripts to achieve unauthorized root-level access.

Mitigation and Prevention

Protecting systems from CVE-2019-19875 requires immediate action and long-term security measures.

Immediate Steps to Take

Update to version R4.2 V7.08 or later to mitigate the vulnerability.
Restrict access to the AprolCluster script and sudo permissions to minimize the risk of unauthorized command execution.

Long-Term Security Practices

Regularly monitor and audit system commands and scripts for any unauthorized activities.
Implement least privilege access controls to limit the impact of potential security breaches.

Patching and Updates

Apply security patches and updates provided by B&R Industrial Automation to address the vulnerability and enhance system security.