CVE-2019-18243 : Security Advisory and Response
Learn about CVE-2019-18243, a vulnerability in HMI/SCADA iFIX Versions 6.1 and earlier that allows local users to modify system-wide configurations, potentially leading to privilege escalation. Find mitigation steps and best practices here.
HMI/SCADA iFIX (Versions 6.1 and prior) allows a local authenticated user to modify system-wide iFIX configurations through the registry, potentially leading to privilege escalation.
Understanding CVE-2019-18243
The vulnerability in HMI/SCADA iFIX could enable unauthorized users to elevate their privileges, posing a security risk.
What is CVE-2019-18243?
CVE-2019-18243 is a vulnerability in HMI/SCADA iFIX Versions 6.1 and earlier that permits local users to manipulate system-wide configurations, potentially resulting in privilege escalation.
The Impact of CVE-2019-18243
The vulnerability could allow a logged-in local user to alter iFIX configurations across the entire system, leading to an elevation of privileges.
Technical Details of CVE-2019-18243
The following technical details provide insight into the vulnerability.
Vulnerability Description
The registry in HMI/SCADA iFIX (Versions 6.1 and earlier) allows a user logged in locally to modify iFIX configurations system-wide, potentially resulting in privilege escalation.
Affected Systems and Versions
- Product: HMI/SCADA iFIX
- Vendor: n/a
- Versions Affected: Versions 6.1 and prior
Exploitation Mechanism
The vulnerability enables a local authenticated user to exploit the registry to alter iFIX configurations, potentially gaining elevated privileges.
Mitigation and Prevention
Taking immediate steps and implementing long-term security practices can help mitigate the risks associated with CVE-2019-18243.
Immediate Steps to Take
- Monitor and restrict access to critical systems and configurations.
- Implement the principle of least privilege to limit user permissions.
- Regularly review and update access controls to prevent unauthorized changes.
Long-Term Security Practices
- Conduct regular security training for users to raise awareness of potential threats.
- Employ network segmentation to isolate critical systems from less secure areas.
- Implement robust authentication mechanisms to verify user identities.
Patching and Updates
- Apply patches and updates provided by the vendor to address the vulnerability in affected versions of HMI/SCADA iFIX.