CVE-2020-8973 : Security Advisory and Response
Learn about CVE-2020-8973 involving improper access control in ZGR TPS200 NG firmware and hardware versions, allowing unauthorized parameter changes. Take immediate steps to secure affected devices.
CVE-2020-8973, assigned by INCIBE, involves improper access control in ZGR TPS200 NG firmware and hardware versions. The vulnerability allows unauthorized users to manipulate device parameters.
Understanding CVE-2020-8973
What is CVE-2020-8973?
CVE-2020-8973 pertains to ZGR TPS200 NG's 2.00 firmware version and 1.01 hardware version, enabling attackers on the network to modify settings without proper user authentication.
The Impact of CVE-2020-8973
The vulnerability poses a critical threat with a CVSS base score of 9.3, allowing attackers to compromise confidentiality and integrity without requiring user privileges.
Technical Details of CVE-2020-8973
Vulnerability Description
- ZGR TPS200 NG fails to validate requests, enabling unauthorized parameter changes.
Affected Systems and Versions
- ZGR TPS200 NG 2.00 firmware version
- ZGR TPS200 NG 1.01 hardware version
Exploitation Mechanism
- Attackers can exploit the vulnerability over an adjacent network without user interaction.
Mitigation and Prevention
Immediate Steps to Take
- Ensure affected devices are isolated on secure networks.
- Monitor network traffic for any suspicious activity.
Long-Term Security Practices
- Regularly update firmware and apply security patches.
- Implement proper access controls and user authentication mechanisms.
Patching and Updates
- ZGR is developing a new TPS design with enhanced cybersecurity measures to address the vulnerability.