CVE-2019-15849 : Exploit Details and Defense Strategies

The firmware version 3.41.11 of eQ-3 HomeMatic CCU3 device has a vulnerability related to session fixation, allowing attackers to compromise the system.

Understanding CVE-2019-15849

This CVE identifies a security flaw in the eQ-3 HomeMatic CCU3 firmware version 3.41.11 that enables session fixation attacks.

What is CVE-2019-15849?

The vulnerability in the eQ-3 HomeMatic CCU3 firmware version 3.41.11 allows attackers to manipulate session IDs, leading to unauthorized access and potential system compromise.

The Impact of CVE-2019-15849

The exploitation of this vulnerability can result in attackers gaining the ability to create SSH logins, ultimately compromising the entire system.

Technical Details of CVE-2019-15849

This section provides detailed technical information about the vulnerability.

Vulnerability Description

The flaw in the eQ-3 HomeMatic CCU3 firmware version 3.41.11 enables session fixation, allowing attackers to generate and exploit session IDs.

Affected Systems and Versions

Product: eQ-3 HomeMatic CCU3
Version: 3.41.11 (affected)

Exploitation Mechanism

Attackers can create session IDs and send them to victims. Once victims log in, attackers can exploit the session, potentially leading to system compromise.

Mitigation and Prevention

Protecting systems from CVE-2019-15849 requires immediate actions and long-term security practices.

Immediate Steps to Take

Update the firmware to a patched version if available.
Monitor system logs for any suspicious activities related to session management.

Long-Term Security Practices

Implement strong session management controls to prevent session fixation attacks.
Conduct regular security assessments and audits to identify and address vulnerabilities.

Patching and Updates

Stay informed about security updates and patches released by the vendor.
Apply patches promptly to mitigate the risk of exploitation.