CVE-2020-8810 : What You Need to Know

An issue was discovered in Gurux GXDLMS Director through 8.5.1905.1301 that allows attackers to execute code by sending malicious files.

Understanding CVE-2020-8810

This CVE identifies a vulnerability in Gurux GXDLMS Director that can lead to code execution by exploiting a flaw in handling downloaded files.

What is CVE-2020-8810?

The vulnerability in Gurux GXDLMS Director allows attackers to send and execute malicious files, potentially leading to unauthorized code execution.

The Impact of CVE-2020-8810

Exploiting this vulnerability can result in attackers executing arbitrary code on the system, even without the presence of any add-ins.

Technical Details of CVE-2020-8810

This section delves into the technical aspects of the vulnerability.

Vulnerability Description

The issue arises when downloading OBIS codes, as the software fails to verify the files' authenticity, enabling attackers to send and execute arbitrary files.

Affected Systems and Versions

Gurux GXDLMS Director through version 8.5.1905.1301

Exploitation Mechanism

Attackers can exploit this vulnerability by sending executable files to the system, placing them in autorun directories, or inserting DLLs into the existing GXDLMS Director installation.

Mitigation and Prevention

Protecting systems from CVE-2020-8810 requires immediate actions and long-term security practices.

Immediate Steps to Take

Update Gurux GXDLMS Director to a patched version if available
Avoid downloading files from untrusted sources
Implement strict file verification mechanisms

Long-Term Security Practices

Regularly update software and security patches
Conduct security audits and penetration testing

Patching and Updates

Apply patches provided by Gurux for GXDLMS Director
Stay informed about security updates and best practices