CVE-2019-18255 : What You Need to Know
Learn about CVE-2019-18255, a vulnerability in HMI/SCADA iFIX allowing local authenticated users to escalate privileges. Find mitigation steps and long-term security practices here.
HMI/SCADA iFIX (Versions 6.1 and prior) allows a local authenticated user to modify system-wide iFIX configurations through section objects, potentially leading to privilege escalation.
Understanding CVE-2019-18255
This CVE involves incorrect permission assignment for critical resources in HMI/SCADA iFIX.
What is CVE-2019-18255?
CVE-2019-18255 pertains to a vulnerability in HMI/SCADA iFIX versions 6.1 and earlier that enables authenticated local users to alter iFIX configurations system-wide using section objects, potentially resulting in an elevation of privileges.
The Impact of CVE-2019-18255
The vulnerability could allow an attacker with local access to escalate their privileges within the system, posing a significant security risk.
Technical Details of CVE-2019-18255
This section provides more technical insights into the vulnerability.
Vulnerability Description
The flaw in HMI/SCADA iFIX versions 6.1 and prior allows authenticated local users to modify system-wide iFIX configurations through section objects, potentially leading to privilege escalation.
Affected Systems and Versions
- Product: HMI/SCADA iFIX
- Vendor: n/a
- Versions affected: 6.1 and prior
Exploitation Mechanism
The vulnerability can be exploited by a user authenticated locally to manipulate iFIX configurations across the entire system using section objects, thereby gaining elevated privileges.
Mitigation and Prevention
Protecting systems from CVE-2019-18255 requires immediate actions and long-term security practices.
Immediate Steps to Take
- Apply security patches provided by the vendor promptly.
- Restrict access to critical systems to authorized personnel only.
- Monitor system logs for any suspicious activities.
Long-Term Security Practices
- Implement the principle of least privilege to restrict user access rights.
- Conduct regular security audits and assessments to identify and address vulnerabilities.
- Educate users on secure practices and the importance of maintaining system integrity.
- Keep systems and software up to date with the latest security patches.
- Consider implementing additional security measures such as multi-factor authentication.
Patching and Updates
Regularly check for updates and patches released by the vendor to address the vulnerability and ensure the security of the system.