CVE-2017-12625 : What You Need to Know

Apache Hive versions 2.1.x before 2.1.2, 2.2.x before 2.2.1, and 2.3.0 have a vulnerability that allows the incorrect enforcement of masking policies on tables or views, leading to information disclosure.

Understanding CVE-2017-12625

Apache Hive vulnerability impacting versions 2.1.x, 2.2.x, and 2.3.0.

What is CVE-2017-12625?

CVE-2017-12625 is a vulnerability in Apache Hive that enables the definition of masking policies on tables or views using Apache Ranger. However, the enforcement of policies on masked columns of the table is not correctly executed when a view is created.

The Impact of CVE-2017-12625

This vulnerability results in information disclosure due to the incorrect enforcement of masking policies, potentially exposing sensitive data.

Technical Details of CVE-2017-12625

Details on the technical aspects of the vulnerability.

Vulnerability Description

Apache Hive versions 2.1.x, 2.2.x, and 2.3.0 expose an interface for defining masking policies on tables or views.
Policy enforcement fails on masked columns when a view is created over a specific table.

Affected Systems and Versions

Product: Apache Hive
Vendor: Apache Software Foundation
Affected Versions: 2.1.x before 2.1.2, 2.2.x before 2.2.1, 2.3.0

Exploitation Mechanism

The vulnerability allows attackers to potentially access masked column data due to the incorrect enforcement of policies when views are created.

Mitigation and Prevention

Measures to address and prevent the CVE-2017-12625 vulnerability.

Immediate Steps to Take

Update Apache Hive to versions 2.1.2, 2.2.1, or later to mitigate the vulnerability.
Review and adjust masking policies to ensure proper enforcement on tables and views.

Long-Term Security Practices

Regularly monitor and audit access to sensitive data within Apache Hive.
Implement least privilege access controls to limit exposure of confidential information.

Patching and Updates

Apply patches provided by Apache Software Foundation to address the vulnerability.