CVE-2023-41118 : Security Advisory and Response

An issue was discovered in EnterpriseDB Postgres Advanced Server (EPAS) before 11.21.32, 12.x before 12.16.20, 13.x before 13.12.16, 14.x before 14.9.0, and 15.x before 15.4.0. It may allow an authenticated user to bypass authorization requirements and access underlying implementation functions when a superuser has configured file locations using CREATE DIRECTORY. This can enable users to perform actions like read, write, copy, rename, and delete.

Understanding CVE-2023-41118

This section provides an in-depth look at the vulnerability discovered in EnterpriseDB Postgres Advanced Server.

What is CVE-2023-41118?

CVE-2023-41118 is a security issue found in EnterpriseDB Postgres Advanced Server versions prior to 11.21.32, 12.x before 12.16.20, 13.x before 13.12.16, 14.x before 14.9.0, and 15.x before 15.4.0. It allows authenticated users to bypass authorization requirements and access critical functions, posing a risk to the system's integrity.

The Impact of CVE-2023-41118

The vulnerability enables users, with certain configurations in place, to perform unauthorized actions that could compromise data integrity, confidentiality, and availability. Unauthorized access to underlying implementation functions can lead to serious security breaches.

Technical Details of CVE-2023-41118

This section outlines specific technical aspects of the CVE-2023-41118 vulnerability.

Vulnerability Description

The issue in EPAS versions allows authenticated users to circumvent authorization controls and utilize critical functions that can manipulate files, potentially leading to unauthorized operations.

Affected Systems and Versions

EnterpriseDB Postgres Advanced Server versions before 11.21.32, 12.x before 12.16.20, 13.x before 13.12.16, 14.x before 14.9.0, and 15.x before 15.4.0 are impacted by this vulnerability.

Exploitation Mechanism

By exploiting this vulnerability, authenticated users can utilize features designated for superuser roles to access and perform unauthorized actions on critical implementation functions.

Mitigation and Prevention

To address CVE-2023-41118, immediate steps and long-term security practices are essential.

Immediate Steps to Take

Organizations should update to the latest patched versions of EnterpriseDB Postgres Advanced Server to mitigate the risk of unauthorized access to critical functions and file manipulation.

Long-Term Security Practices

Implement least privilege access controls, regularly monitor system activities, and conduct security audits to prevent similar vulnerabilities and unauthorized access attempts.

Patching and Updates

Regularly check for security updates and patches provided by EnterpriseDB and promptly apply them to ensure system security.