CVE-2019-6675 : What You Need to Know

Systems configured with BIG-IP using Active Directory, LDAP, or Client Certificate LDAP for authentication during management are vulnerable to an authentication bypass. This vulnerability exposes the system to a potential compromise. It is important to note that this issue only affects specific engineering hotfixes that utilize the mentioned authentication configurations. This vulnerability does not impact any of the major, minor, or maintenance releases obtained from downloads.f5.com. The affected builds include Hotfix-BIGIP-14.1.0.3.0.79.6-ENG.iso, Hotfix-BIGIP-14.1.0.3.0.97.6-ENG.iso, Hotfix-BIGIP-14.1.0.3.0.99.6-ENG.iso, Hotfix-BIGIP-14.1.0.5.0.15.5-ENG.iso, Hotfix-BIGIP-14.1.0.5.0.36.5-ENG.iso, Hotfix-BIGIP-14.1.0.5.0.40.5-ENG.iso, Hotfix-BIGIP-14.1.0.6.0.11.9-ENG.iso, Hotfix-BIGIP-14.1.0.6.0.14.9-ENG.iso, Hotfix-BIGIP-14.1.0.6.0.68.9-ENG.iso, Hotfix-BIGIP-14.1.0.6.0.70.9-ENG.iso, Hotfix-BIGIP-14.1.2.0.11.37-ENG.iso, Hotfix-BIGIP-14.1.2.0.18.37-ENG.iso, Hotfix-BIGIP-14.1.2.0.32.37-ENG.iso, Hotfix-BIGIP-14.1.2.1.0.46.4-ENG.iso, Hotfix-BIGIP-14.1.2.1.0.14.4-ENG.iso, Hotfix-BIGIP-14.1.2.1.0.16.4-ENG.iso, Hotfix-BIGIP-14.1.2.1.0.34.4-ENG.iso, Hotfix-BIGIP-14.1.2.1.0.97.4-ENG.iso, Hotfix-BIGIP-14.1.2.1.0.99.4-ENG.iso, Hotfix-BIGIP-14.1.2.1.0.105.4-ENG.iso, Hotfix-BIGIP-14.1.2.1.0.111.4-ENG.iso, Hotfix-BIGIP-14.1.2.1.0.115.4-ENG.iso, Hotfix-BIGIP-14.1.2.1.0.122.4-ENG.iso, Hotfix-BIGIP-15.0.1.0.33.11-ENG.iso, and Hotfix-BIGIP-15.0.1.0.48.11-ENG.iso.

Understanding CVE-2019-6675

This CVE affects systems using BIG-IP with specific engineering hotfixes and authentication configurations, potentially leading to an authentication bypass.

What is CVE-2019-6675?

CVE-2019-6675 is an authentication bypass vulnerability that impacts systems configured with BIG-IP using Active Directory, LDAP, or Client Certificate LDAP for management authentication.

The Impact of CVE-2019-6675

The vulnerability allows for an authentication bypass, potentially leading to a complete compromise of the system.
This issue affects specific engineering hotfixes utilizing the mentioned authentication configurations.

Technical Details of CVE-2019-6675

This section provides more technical insights into the vulnerability.

Vulnerability Description

Systems using BIG-IP with Active Directory, LDAP, or Client Certificate LDAP for management authentication are exposed to an authentication bypass vulnerability.

Affected Systems and Versions

Affected systems include those running specific engineering hotfixes listed in the description.

Exploitation Mechanism

Attackers can exploit this vulnerability to bypass authentication mechanisms and potentially compromise the system.

Mitigation and Prevention

Protecting systems from CVE-2019-6675 is crucial to maintaining security.

Immediate Steps to Take

Apply patches or updates provided by the vendor to address the vulnerability.
Monitor network traffic for any suspicious activity that may indicate exploitation of the vulnerability.

Long-Term Security Practices

Regularly update and patch systems to prevent known vulnerabilities from being exploited.
Implement multi-factor authentication to enhance security measures.

Patching and Updates

Stay informed about security advisories and updates from the vendor to apply patches promptly.