CVE-2021-38405 : What You Need to Know

This CVE-2021-38405 article provides insights into a vulnerability affecting Siemens products and the necessary actions to mitigate the risk effectively.

Understanding CVE-2021-38405

The CVE-2021-38405 vulnerability involves memory corruption in the Datalogics APDFL library, leading to potential code execution in Siemens products.

What is CVE-2021-38405?

The Datalogics APDFL library in Siemens products is susceptible to memory corruption when processing crafted PDF files, enabling a threat actor to execute code within the current process context.

The Impact of CVE-2021-38405

The vulnerability's impact is significant, with a CVSS base score of 7.8 (High severity) and the potential for unauthorized code execution within affected products.

Technical Details of CVE-2021-38405

This section delves into the specific aspects of the CVE-2021-38405 vulnerability.

Vulnerability Description

The vulnerability stems from memory corruption in the Datalogics APDFL library used in Siemens products, allowing malicious code execution.

Affected Systems and Versions

Siemens products affected include JT2Go and Teamcenter Visualization, with specific vulnerable versions listed.

Exploitation Mechanism

Threat actors can exploit the memory corruption flaw by coercing the processing of malevolent PDF files to trigger unauthorized code execution.

Mitigation and Prevention

Understanding the necessary steps to reduce vulnerability risks and secure affected systems.

Immediate Steps to Take

Refrain from opening suspicious files from unknown sources on impacted products.

Long-Term Security Practices

Implement network access protection mechanisms for devices.
Configure IT environments following Siemens' operational security guidelines.
Refer to product manuals for additional security best practices.
Explore Siemens' industrial security webpage for more insights.

Patching and Updates

Siemens has released updates for affected products, recommending immediate installation for enhanced security.
Update JT2Go to version 13.2.0.7 or newer.
Update Teamcenter Visualization versions 13.1, 13.2, and 13.3 to the specified patched versions.
Consult Siemens' security advisory SSA-301589 for comprehensive guidance.