CVE-2020-11644 : Exploit Details and Defense Strategies

A vulnerability in B&R GateManager versions allows authenticated users to create fake audit log messages.

Understanding CVE-2020-11644

This CVE involves an information disclosure vulnerability in B&R GateManager versions, enabling users to spoof audit log messages.

What is CVE-2020-11644?

The vulnerability in B&R GateManager versions <9.0.20262 and <9.2.620236042 permits authenticated users to generate false audit log entries.

The Impact of CVE-2020-11644

The vulnerability poses a medium severity risk with a CVSS base score of 6.5. It can lead to high availability impact but does not affect confidentiality or integrity.

Technical Details of CVE-2020-11644

This section provides in-depth technical insights into the CVE.

Vulnerability Description

The vulnerability allows authenticated users to manipulate audit log messages in B&R GateManager versions <9.0.20262 and <9.2.620236042.

Affected Systems and Versions

Product: GateManager
Vendor: B&R
Affected Versions: 4260, 9250 (<9.0.20262), 8250 (<9.2.620236042)

Exploitation Mechanism

The vulnerability can be exploited by authenticated users to create fake audit log messages, potentially leading to misinformation.

Mitigation and Prevention

Protecting systems from CVE-2020-11644 is crucial for maintaining security.

Immediate Steps to Take

Update GateManager to versions above the specified vulnerable versions.
Monitor audit logs for any suspicious activities.

Long-Term Security Practices

Regularly review and update security policies.
Conduct security training for users to prevent unauthorized actions.

Patching and Updates

Apply patches provided by B&R to address the vulnerability and enhance system security.