CVE-2020-8974 : Exploit Details and Defense Strategies
Learn about CVE-2020-8974, a critical vulnerability in ZGR TPS200 NG firmware and hardware versions that allows attackers to upload malicious modifications, impacting device availability.
CVE-2020-8974, assigned by INCIBE, involves a vulnerability in ZGR TPS200 NG firmware and hardware versions that allows attackers to render the device unusable.
Understanding CVE-2020-8974
This CVE identifies a critical vulnerability in ZGR TPS200 NG devices that can be exploited to upload malicious firmware modifications.
What is CVE-2020-8974?
The vulnerability in ZGR TPS200 NG firmware and hardware versions allows attackers to upload modified firmware without any restrictions, potentially leading to device compromise.
The Impact of CVE-2020-8974
The impact of this vulnerability is critical, with a CVSS base score of 10, indicating a high availability impact and rendering the device unusable.
Technical Details of CVE-2020-8974
This section provides detailed technical information about the vulnerability.
Vulnerability Description
The firmware upload process in ZGR TPS200 NG 2.00 firmware version and 1.01 hardware version lacks restrictions, enabling attackers to upload malicious modifications via the web.
Affected Systems and Versions
- Product: ZGR TPS200 NG
- Vendor: ZGR
- Affected Versions:
- 2.00 firmware version 2.00
- 1.01 hardware version 1.01
Exploitation Mechanism
Attackers can exploit this vulnerability by uploading modified firmware to the affected ZGR TPS200 NG devices without any restrictions.
Mitigation and Prevention
To address CVE-2020-8974, immediate steps and long-term security practices are crucial.
Immediate Steps to Take
- Ensure affected equipment is connected to properly isolated and secured networks
Long-Term Security Practices
- Regularly update firmware and software to mitigate vulnerabilities
- Implement network segmentation to isolate critical devices
- Conduct security assessments and penetration testing
Patching and Updates
The ZGR team is developing a new design for TPS devices with enhanced cybersecurity measures to address identified vulnerabilities. Affected equipment should be connected to secure networks to mitigate risks.