CVE-2019-6527 : Vulnerability Insights and Analysis

PR100088 Modbus gateway versions prior to Release R02 (or Software Version 1.1.13166) may allow unauthorized modification of an admin user's password.

Understanding CVE-2019-6527

Versions of the PR100088 Modbus gateway released before R02 (or Software Version 1.1.13166) have a vulnerability that enables unauthorized parties to modify the password of an admin user.

What is CVE-2019-6527?

The vulnerability allows unauthorized parties to change the password of an admin user who is currently or previously logged in, provided the device has not been restarted.

The Impact of CVE-2019-6527

Unauthorized modification of admin passwords can lead to unauthorized access and potential compromise of the device and its data.

Technical Details of CVE-2019-6527

PR100088 Modbus gateway is affected by the following:

Vulnerability Description

Improper authentication vulnerability (CWE-287) allows unauthorized password modification.

Affected Systems and Versions

Product: PR100088 Modbus gateway
Vendor: ICS-CERT
Affected Versions: All versions prior to Release R02 (or Software Version 1.1.13166)

Exploitation Mechanism

Unauthorized parties can exploit the vulnerability to change the admin user's password without proper authentication.

Mitigation and Prevention

Immediate Steps to Take:

Update the device to Release R02 (or Software Version 1.1.13166) to mitigate the vulnerability.
Regularly monitor and review admin user activities for any unauthorized changes. Long-Term Security Practices:
Implement strong password policies and multi-factor authentication.
Conduct regular security assessments and audits to identify and address vulnerabilities.
Educate users on secure password practices and the importance of device security.
Patching and Updates: Apply security patches and updates promptly to address known vulnerabilities.