CVE-2021-22145 : What You Need to Know

A memory disclosure vulnerability was identified in Elasticsearch versions 7.10.0 to 7.13.3 error reporting, allowing a user to receive an error message containing sensitive data from a data buffer.

Understanding CVE-2021-22145

This section provides insights into the vulnerability's nature and impact.

What is CVE-2021-22145?

The CVE-2021-22145 vulnerability in Elasticsearch versions 7.10.0 to 7.13.3 allows an attacker to obtain sensitive information through error messages.

The Impact of CVE-2021-22145

The vulnerability enables attackers to access previously used data buffers, potentially exposing Elasticsearch documents and authentication details.

Technical Details of CVE-2021-22145

Explore the specifics of the vulnerability to understand its implications further.

Vulnerability Description

The flaw allows users to submit malformed queries, triggering error messages that reveal sensitive data stored in data buffers.

Affected Systems and Versions

Elasticsearch versions 7.10.0 to 7.13.3 are affected by this vulnerability, making them susceptible to data disclosure attacks.

Exploitation Mechanism

Attackers can exploit this vulnerability by crafting queries that trigger error responses leaking sensitive information.

Mitigation and Prevention

Learn how to address and prevent the CVE-2021-22145 vulnerability effectively.

Immediate Steps to Take

Users are advised to update Elasticsearch to version 7.13.4 or later to mitigate the risk of data exposure.

Long-Term Security Practices

Implement strict access controls and monitoring to detect and prevent unauthorized access to sensitive data.

Patching and Updates

Regularly apply security patches and updates provided by Elasticsearch to protect systems from known vulnerabilities.