CVE-2021-43984 : Exploit Details and Defense Strategies
Learn about CVE-2021-43984, a critical vulnerability in mySCADA myPRO versions 8.20.0 and prior allowing OS command injection. Find mitigation steps and upgrade recommendations here.
A critical vulnerability in mySCADA myPRO versions 8.20.0 and prior could allow an attacker to execute arbitrary OS commands.
Understanding CVE-2021-43984
What is CVE-2021-43984?
mySCADA myPRO versions 8.20.0 and earlier contain a vulnerability that permits injection of arbitrary operating system commands due to a firmware update feature.
The Impact of CVE-2021-43984
The vulnerability has a high impact on confidentiality, integrity, and availability, with a critical base severity score of 10.
Technical Details of CVE-2021-43984
Vulnerability Description
An attacker can exploit the firmware update feature in mySCADA myPRO versions 8.20.0 and prior to inject unauthorized OS commands through a specific parameter.
Affected Systems and Versions
- Product: myPRO
- Vendor: mySCADA
- Versions affected: <= 8.20.0 (All)
Exploitation Mechanism
- Attack Complexity: Low
- Attack Vector: Network
- Privileges Required: None
- Scope: Changed
- User Interaction: None
Mitigation and Prevention
Immediate Steps to Take
- Upgrade to mySCADA myPRO Version 8.22.0 or higher
- Contact mySCADA technical support for further assistance
Long-Term Security Practices
- Regularly update software and firmware to latest versions
- Implement network segmentation and access controls
Patching and Updates
Follow mySCADA's recommendations for patching vulnerabilities and stay informed on security advisories.