CVE-2020-10754 : Exploit Details and Defense Strategies

A vulnerability in NetworkManager's nmcli command line interface could lead to insecure network connections.

Understanding CVE-2020-10754

This CVE involves NetworkManager's nmcli not properly handling certain authentication settings, potentially compromising network security.

What is CVE-2020-10754?

The nmcli tool fails to honor specific authentication settings, leading to insecure network connections.

The Impact of CVE-2020-10754

CVSS Score: 4.3 (Medium Severity)
Attack Vector: Network
Confidentiality Impact: Low
Integrity Impact: None
Privileges Required: Low
Vulnerability Type: CWE-287, CWE-306

Technical Details of CVE-2020-10754

A closer look at the technical aspects of this vulnerability.

Vulnerability Description

The issue arises from nmcli not respecting certain authentication settings, resulting in insecure network connections.

Affected Systems and Versions

Affected Product: NetworkManager
Vendor: Red Hat
Affected Version: 1.24.2

Exploitation Mechanism

When creating a new profile, nmcli fails to apply 802-1x.ca-path and 802-1x.phase2-ca-path settings, leading to insecure network connections.

Mitigation and Prevention

Guidelines to address and prevent the CVE-2020-10754 vulnerability.

Immediate Steps to Take

Update NetworkManager to a patched version that addresses the authentication issue.
Monitor network connections for any suspicious activity.

Long-Term Security Practices

Regularly review and update network security configurations.
Educate users on secure network connection practices.

Patching and Updates

Apply security patches provided by Red Hat to fix the vulnerability.