CVE-2019-10122 : Vulnerability Insights and Analysis

Devices from eQ-3 HomeMatic CCU2 with versions earlier than 2.41.9 and CCU3 devices with versions earlier than 3.43.16 are found to have buffer overflows in the ReGa ise GmbH HTTP-Server 2.0 component, known as HMCCU-179. This vulnerability poses a risk of remote code execution.

Understanding CVE-2019-10122

This CVE identifies a buffer overflow vulnerability in eQ-3 HomeMatic CCU2 and CCU3 devices, potentially allowing remote code execution.

What is CVE-2019-10122?

The CVE-2019-10122 vulnerability involves buffer overflows in the ReGa ise GmbH HTTP-Server 2.0 component, affecting specific versions of eQ-3 HomeMatic CCU2 and CCU3 devices.

The Impact of CVE-2019-10122

The vulnerability could be exploited by attackers to execute arbitrary code remotely on affected devices, leading to potential security breaches and unauthorized access.

Technical Details of CVE-2019-10122

This section provides detailed technical information about the CVE-2019-10122 vulnerability.

Vulnerability Description

The buffer overflow in the ReGa ise GmbH HTTP-Server 2.0 component, labeled as HMCCU-179, allows attackers to potentially execute malicious code remotely.

Affected Systems and Versions

eQ-3 HomeMatic CCU2 devices before version 2.41.9
eQ-3 HomeMatic CCU3 devices before version 3.43.16

Exploitation Mechanism

Attackers can exploit the buffer overflow in the HTTP-Server 2.0 component to inject and execute unauthorized code remotely.

Mitigation and Prevention

Protecting systems from CVE-2019-10122 requires immediate actions and long-term security practices.

Immediate Steps to Take

Update affected eQ-3 HomeMatic CCU2 devices to version 2.41.9 or later
Update affected eQ-3 HomeMatic CCU3 devices to version 3.43.16 or later
Implement network segmentation to limit exposure

Long-Term Security Practices

Regularly monitor for security updates and patches
Conduct security assessments and penetration testing
Educate users on safe computing practices

Patching and Updates

Apply firmware updates provided by eQ-3 for HomeMatic CCU2 and CCU3 devices to address the vulnerability