CVE-2018-7296 Explained : Impact and Mitigation
Learn about CVE-2018-7296, a vulnerability in the User.getLanguage method of eQ-3 AG Homematic CCU2 allowing unauthorized remote attackers to read files. Find out the impact, affected systems, and mitigation steps.
A vulnerability in the User.getLanguage method of eQ-3 AG Homematic CCU2 version 2.29.2 and earlier allows unauthorized remote attackers to read the initial line of any file saved on the filesystem of CCU2.
Understanding CVE-2018-7296
This CVE entry describes a security flaw in the eQ-3 AG Homematic CCU2 that enables attackers to perform directory traversal and read arbitrary files on the system.
What is CVE-2018-7296?
The vulnerability in the User.getLanguage method of eQ-3 AG Homematic CCU2 version 2.29.2 and earlier allows unauthorized remote attackers to read the initial line of any file saved on the filesystem of CCU2. Attackers can exploit this flaw without authentication as long as they have access to the web interface.
The Impact of CVE-2018-7296
This vulnerability poses a significant risk as it allows attackers to access sensitive information stored on the CCU2 filesystem without proper authorization.
Technical Details of CVE-2018-7296
The technical details of CVE-2018-7296 provide insights into the vulnerability's specifics.
Vulnerability Description
The vulnerability enables remote attackers to perform directory traversal and read the first line of any file on the CCU2's filesystem through the User.getLanguage method.
Affected Systems and Versions
- Affected system: eQ-3 AG Homematic CCU2
- Affected versions: 2.29.2 and earlier
Exploitation Mechanism
Attackers can exploit this vulnerability by accessing the web interface of the CCU2 without the need for authentication, allowing them to read sensitive files on the system.
Mitigation and Prevention
Protecting systems from CVE-2018-7296 requires immediate actions and long-term security practices.
Immediate Steps to Take
- Update the eQ-3 AG Homematic CCU2 to a patched version that addresses the vulnerability.
- Restrict access to the web interface of the CCU2 to authorized users only.
Long-Term Security Practices
- Regularly monitor and audit file access and permissions on the CCU2 system.
- Implement network segmentation to limit the exposure of critical systems to potential attacks.
Patching and Updates
Ensure timely installation of security patches and updates provided by eQ-3 AG to mitigate the vulnerability.