CVE-2020-1707 : Vulnerability Insights and Analysis

A vulnerability was found in all openshift/postgresql-apb 4.x.x versions prior to 4.3.0, allowing an attacker to escalate privileges by modifying the /etc/passwd file within the container openshift/postgresql-apb.

Understanding CVE-2020-1707

This CVE identifies an insecure modification vulnerability in the /etc/passwd file of openshift/postgresql-apb containers.

What is CVE-2020-1707?

The vulnerability in openshift/postgresql-apb 4.x.x versions prior to 4.3.0 permits unauthorized modification of the /etc/passwd file, potentially leading to privilege escalation for attackers.

The Impact of CVE-2020-1707

The vulnerability could be exploited by an attacker with access to the container to modify critical system files and potentially escalate their privileges within the system.

Technical Details of CVE-2020-1707

This section delves into the technical specifics of the vulnerability.

Vulnerability Description

The insecure modification vulnerability in openshift/postgresql-apb versions could allow an attacker to alter the /etc/passwd file, opening the door for privilege escalation attacks.

Affected Systems and Versions

Vendor: [UNKNOWN]
Product: openshift/postgresql-apb
Affected Version: 4.x.x (prior to 4.3.0)

Exploitation Mechanism

Attack Vector: LOCAL
Attack Complexity: HIGH
Privileges Required: LOW
User Interaction: NONE
Confidentiality Impact: HIGH
Integrity Impact: HIGH
Availability Impact: HIGH
Base Score: 7 (High severity)

Mitigation and Prevention

Here are the steps to mitigate and prevent the CVE-2020-1707 vulnerability.

Immediate Steps to Take

Upgrade affected openshift/postgresql-apb versions to 4.3.0 or newer.
Monitor container activities for suspicious modifications to critical files.

Long-Term Security Practices

Regularly audit and review container configurations and permissions.
Implement the principle of least privilege to restrict unnecessary access.
Stay informed about security updates and best practices in container security.

Patching and Updates

Apply patches provided by the vendor promptly to address security vulnerabilities.