CVE-2023-37856 Explained : Impact and Mitigation
Learn about CVE-2023-37856, a medium severity vulnerability in PHOENIX CONTACT's WP 6xxx Web panels allowing remote attackers to gain unauthorized read-access to the device filesystem. Take immediate steps to patch and secure affected systems.
A detailed analysis of CVE-2023-37856 focusing on the unauthorized read-access vulnerability in PHOENIX CONTACT's WP 6xxx Web panels.
Understanding CVE-2023-37856
An overview of the vulnerability impacting PHOENIX CONTACT's WP 6xxx Web panels.
What is CVE-2023-37856?
CVE-2023-37856 involves a remote attacker with low privileges gaining limited read-access to the device-filesystem through a configuration dialog within the embedded Qt browser in PHOENIX CONTACT's WP 6xxx series web panels prior to version 4.0.10.
The Impact of CVE-2023-37856
The vulnerability poses a medium severity risk with a base score of 4.3. It allows attackers to access sensitive device filesystem information, compromising confidentiality with low privileges required and no impact on integrity or availability.
Technical Details of CVE-2023-37856
A deeper dive into the technical aspects of the vulnerability.
Vulnerability Description
An attacker can exploit the vulnerability in WP 6xxx Web panels to gain unauthorized read-access to the root filesystem, potentially leading to unauthorized data exposure.
Affected Systems and Versions
The vulnerability affects PHOENIX CONTACT's WP 6xxx Web panels with versions prior to 4.0.10.
Exploitation Mechanism
Attackers can leverage a configuration dialog within the embedded Qt browser to gain limited read-access to device filesystems remotely.
Mitigation and Prevention
Effective strategies to mitigate and prevent exploitation of CVE-2023-37856.
Immediate Steps to Take
- Update affected systems to version 4.0.10 or later to patch the vulnerability.
- Restrict access to configuration dialogs to authorized users only.
Long-Term Security Practices
- Regularly monitor and audit device filesystem access for unauthorized activities.
- Implement network segmentation to limit exposure of critical devices.
Patching and Updates
Stay informed about security updates from PHOENIX CONTACT and promptly apply patches to secure systems against known vulnerabilities.