CVE-2019-19346 Explained : Impact and Mitigation

A security flaw has been discovered in container openshift/mariadb-apb, affecting versions prior to 4.3.5, 4.2.21, 4.1.37, and 3.11.188-4. Unauthorized access could lead to privilege escalation by altering the /etc/passwd file.

Understanding CVE-2019-19346

This CVE involves an insecure modification vulnerability in the /etc/passwd file within the openshift/mariadb-apb container.

What is CVE-2019-19346?

The vulnerability allows unauthorized individuals to access the container and potentially modify the /etc/passwd file, leading to privilege escalation.

The Impact of CVE-2019-19346

CVSS Score: 7.0 (High)
Attack Vector: Local
Attack Complexity: High
Privileges Required: Low
Confidentiality Impact: High
Integrity Impact: High
Availability Impact: High

Technical Details of CVE-2019-19346

This section provides detailed technical information about the vulnerability.

Vulnerability Description

The flaw resides in the /etc/passwd file of the openshift/mariadb-apb container, allowing attackers to increase their privileges.

Affected Systems and Versions

Affected Product: openshift/mariadb-apb
Vendor: Openshift Enterprise
Affected Versions:
Fixed in 4.3.5-202003020549
Fixed in 4.2.21-202002240343
Fixed in 4.1.37-202003021622
Fixed in 3.11.188-4

Exploitation Mechanism

Unauthorized individuals gaining access to the container can exploit the vulnerability to alter the /etc/passwd file and elevate their privileges.

Mitigation and Prevention

Protect your systems from CVE-2019-19346 with the following steps:

Immediate Steps to Take

Update the affected container to the fixed versions mentioned.
Monitor container access and restrict unauthorized entry.
Implement least privilege access controls.

Long-Term Security Practices

Regularly audit and review container configurations.
Conduct security training for personnel accessing containers.

Patching and Updates

Apply security patches promptly to ensure protection against known vulnerabilities.