CVE-2021-44016 Explained : Impact and Mitigation

A vulnerability has been identified in JT2Go, Solid Edge SE2021, Solid Edge SE2022, Teamcenter Visualization V13.1, Teamcenter Visualization V13.2, and Teamcenter Visualization V13.3 allowing execution of arbitrary code.

Understanding CVE-2021-44016

This CVE encompasses multiple Siemens products with specific version vulnerabilities.

What is CVE-2021-44016?

The vulnerability resides in the plmxmlAdapterSE70.dll library, leading to memory corruption that can be exploited via specially crafted PAR files to execute code within the current process context.

The Impact of CVE-2021-44016

The vulnerability could be exploited by attackers to execute arbitrary code on affected systems, potentially leading to serious security breaches and unauthorized access.

Technical Details of CVE-2021-44016

This section presents in-depth technical information about the CVE.

Vulnerability Description

The plmxmlAdapterSE70.dll library in Siemens products is susceptible to a memory corruption issue, allowing attackers to execute arbitrary code via manipulated PAR files.

Affected Systems and Versions

The following Siemens products are affected:

JT2Go: All versions < V13.2.0.7
Solid Edge SE2021: All versions < SE2021MP9
Solid Edge SE2022: All versions < SE2022MP1
Teamcenter Visualization V13.1: All versions < V13.1.0.9
Teamcenter Visualization V13.2: All versions < V13.2.0.7
Teamcenter Visualization V13.3: All versions < V13.3.0.1

Exploitation Mechanism

Attackers can exploit this vulnerability through crafted PAR files that trigger a memory corruption condition, enabling them to execute arbitrary code within the affected process.

Mitigation and Prevention

Protect your systems and data with the following measures:

Immediate Steps to Take

Apply updates or patches provided by Siemens promptly.
Monitor Siemens' security advisories for any new information or patches.
Implement network segmentation to contain potential threats.

Long-Term Security Practices

Conduct regular security assessments and penetration testing.
Train employees on recognizing and reporting suspicious activities.
Implement robust access control and authentication mechanisms.

Patching and Updates

Ensure all affected Siemens products are updated to the latest secure versions.
Regularly check for security updates and apply them as soon as they are available.