CVE-2019-19348 : Security Advisory and Response

A security flaw in the openshift/apb-base container's /etc/passwd file allows attackers to gain elevated privileges by modifying the file. This vulnerability affects versions prior to 4.3.5, 4.2.21, 4.1.37, and 3.11.188-4.

Understanding CVE-2019-19348

This CVE involves a security vulnerability in the openshift/apb-base container that could be exploited by attackers to escalate privileges.

What is CVE-2019-19348?

CVE-2019-19348 is a vulnerability in the /etc/passwd file of the openshift/apb-base container, enabling unauthorized users to gain elevated privileges.

The Impact of CVE-2019-19348

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-2019-19348

This section provides detailed technical information about the CVE.

Vulnerability Description

The vulnerability allows attackers with container access to modify the /etc/passwd file, leading to privilege escalation.

Affected Systems and Versions

The following versions are affected:

openshift/apb-base 4.3.5-202003020549
openshift/apb-base 4.2.21-202002240343
openshift/apb-base 4.1.37-202003021622
openshift/apb-base 3.11.188-4

Exploitation Mechanism

Attackers with container access can exploit the vulnerability by altering the /etc/passwd file to gain elevated privileges.

Mitigation and Prevention

Protect your systems from CVE-2019-19348 with the following steps:

Immediate Steps to Take

Update the openshift/apb-base container to the fixed versions.
Monitor container access and restrict privileges.

Long-Term Security Practices

Regularly audit and review container configurations.
Implement least privilege access controls.

Patching and Updates

Apply security patches promptly to mitigate vulnerabilities.