CVE-2018-3827 : Vulnerability Insights and Analysis

CVE-2018-3827 was published on September 19, 2018, and affects Elasticsearch versions before 6.3.0. The vulnerability lies in the Elasticsearch repository-azure plugin, potentially leading to the exposure of sensitive data through inadvertent logging of Azure credentials.

Understanding CVE-2018-3827

This CVE involves a flaw in the Elasticsearch repository-azure plugin that could result in the disclosure of sensitive data due to misconfigured logging settings.

What is CVE-2018-3827?

A sensitive data disclosure vulnerability in the Elasticsearch repository-azure plugin allows Azure credentials to be unintentionally logged when the plugin is set to log at the TRACE level.

The Impact of CVE-2018-3827

The vulnerability may lead to the exposure of Azure credentials, potentially compromising sensitive data stored in Elasticsearch.

Technical Details of CVE-2018-3827

The technical aspects of this CVE include:

Vulnerability Description

The flaw in the Elasticsearch repository-azure plugin allows for the inadvertent logging of Azure credentials when configured to log at the TRACE level.

Affected Systems and Versions

Product: Elasticsearch
Vendor: Elastic
Versions Affected: Before 6.3.0

Exploitation Mechanism

The vulnerability is exploited when the Elasticsearch repository-azure plugin is misconfigured to log at the TRACE level, leading to the logging of Azure credentials.

Mitigation and Prevention

To address CVE-2018-3827, consider the following steps:

Immediate Steps to Take

Upgrade Elasticsearch to version 6.3.0 or newer.
Adjust logging configurations to avoid sensitive data exposure.

Long-Term Security Practices

Regularly review and update logging configurations to prevent inadvertent data exposure.
Implement least privilege access controls for Elasticsearch and associated plugins.

Patching and Updates

Apply security updates and patches provided by Elastic to address the vulnerability and enhance system security.