CVE-2020-8472 : Vulnerability Insights and Analysis
Learn about CVE-2020-8472 affecting ABB System 800xA products like OPC Server for AC 800M and Control Builder M Professional. Discover the impact, affected versions, and mitigation steps.
Insufficient folder permissions in ABB System 800xA products allow low privileged users to manipulate system files, potentially leading to privilege escalation and system disruption.
Understanding CVE-2020-8472
This CVE involves weak file permissions in various ABB products, enabling unauthorized access and potential system compromise.
What is CVE-2020-8472?
Insufficient folder permissions in ABB System 800xA products like OPC Server for AC 800M and Control Builder M Professional allow unauthorized users to access and modify critical system files.
The Impact of CVE-2020-8472
- Attack Vector: Local
- Attack Complexity: Low
- Privileges Required: Low
- Availability Impact: High
- Base Score: 5.5 (Medium Severity)
- Vulnerability: CWE-732 Incorrect Permission Assignment for Critical Resource
Technical Details of CVE-2020-8472
This section provides detailed technical insights into the vulnerability.
Vulnerability Description
The vulnerability arises from inadequate folder permissions in ABB System 800xA products, enabling unauthorized users to manipulate system and application files.
Affected Systems and Versions
- OPC Server for AC 800M: Version 6.0 and earlier
- Control Builder M Professional: Version 6.1 and earlier
- MMS Server for AC 800M: Version 6.1 and earlier
- Base Software for SoftControl: Version 6.1 and earlier
Exploitation Mechanism
Unauthorized users with low privileges can exploit the weak file permissions to read, modify, add, and delete critical system and application files, potentially causing system disruptions and privilege escalation.
Mitigation and Prevention
Protect your systems from CVE-2020-8472 with these mitigation strategies.
Immediate Steps to Take
- Regularly review and adjust folder permissions to restrict unauthorized access.
- Implement the principle of least privilege to limit user capabilities.
- Monitor system logs for any suspicious activities related to file manipulation.
Long-Term Security Practices
- Conduct regular security audits to identify and address permission-related vulnerabilities.
- Educate users on secure file handling practices to prevent unauthorized access.
Patching and Updates
- Apply patches and updates provided by ABB to address the weak file permissions vulnerability in affected products.