CVE-2021-36151 Explained : Impact and Mitigation

Apache Gobblin has a security vulnerability tracked as CVE-2021-36151 that allows local users on Unix-like systems to view the Hadoop token. It impacts versions up to 0.15.0 and users are advised to upgrade to version 0.16.0 to fix this issue.

Understanding CVE-2021-36151

This vulnerability in Apache Gobblin exposes the Hadoop token to all local users, posing a risk to the confidentiality of credentials.

What is CVE-2021-36151?

CVE-2021-36151 is a local credentials disclosure vulnerability in Apache Gobblin, where the Hadoop token is stored in a temporary file that can be accessed by any local user on Unix-like systems.

The Impact of CVE-2021-36151

The vulnerability allows unauthorized users to view the Hadoop token, potentially leading to the exposure of sensitive credentials and compromising the security of the system.

Technical Details of CVE-2021-36151

This section provides insight into the specific details of the CVE-2021-36151 vulnerability.

Vulnerability Description

The issue arises from the improper storage of the Hadoop token in a temporary file accessible to all local users, breaching the confidentiality of the token.

Affected Systems and Versions

Apache Gobblin versions up to 0.15.0 are impacted by this vulnerability, making the Hadoop token visible to unauthorized local users.

Exploitation Mechanism

Unauthorized users can exploit this vulnerability by accessing the temporary file where the Hadoop token is stored, gaining unauthorized access to sensitive credentials.

Mitigation and Prevention

To address CVE-2021-36151 and enhance the security of Apache Gobblin, users should take the following actions.

Immediate Steps to Take

Users are strongly advised to upgrade to version 0.16.0 of Apache Gobblin to mitigate the risk of local credentials exposure.

Long-Term Security Practices

Implement strict access controls and permissions to restrict unauthorized access to critical system files and enhance overall security posture.

Patching and Updates

Regularly monitor for security updates and patches released by Apache Gobblin to prevent security vulnerabilities and ensure a secure environment.