CVE-2021-3167 : Vulnerability Insights and Analysis

In Cloudera Data Engineering (CDE) 1.3.0, JWT authentication tokens are exposed to administrators in virtual cluster server logs.

Understanding CVE-2021-3167

This CVE highlights a security vulnerability in Cloudera Data Engineering (CDE) version 1.3.0 where JWT authentication tokens are inadvertently exposed to administrators through virtual cluster server logs.

What is CVE-2021-3167?

CVE-2021-3167 is a vulnerability in Cloudera Data Engineering (CDE) version 1.3.0 that allows administrators to access JWT authentication tokens through server logs, posing a security risk to the system.

The Impact of CVE-2021-3167

The exposure of JWT authentication tokens in the server logs can lead to unauthorized access and potential exploitation of the system by malicious actors, compromising the security and integrity of the CDE environment.

Technical Details of CVE-2021-3167

The technical details of CVE-2021-3167 are as follows:

Vulnerability Description

The vulnerability allows administrators to retrieve JWT authentication tokens from virtual cluster server logs, which can be exploited by threat actors to gain unauthorized access.

Affected Systems and Versions

Cloudera Data Engineering (CDE) version 1.3.0 is affected by this vulnerability, potentially impacting systems that utilize this specific version.

Exploitation Mechanism

Malicious actors with access to server logs can exploit this vulnerability to obtain JWT authentication tokens and use them to infiltrate the system, bypassing security measures.

Mitigation and Prevention

To address CVE-2021-3167 and enhance security measures within CDE environments, the following steps are recommended:

Immediate Steps to Take

Update Cloudera Data Engineering (CDE) to a patched version that addresses the vulnerability.
Monitor and restrict access to server logs containing sensitive information like authentication tokens.

Long-Term Security Practices

Implement robust logging policies to prevent exposure of sensitive data in server logs.
Conduct regular security audits and risk assessments to identify and mitigate potential vulnerabilities.

Patching and Updates

Stay informed about security bulletins and releases from Cloudera to promptly apply patches and updates that address known vulnerabilities like CVE-2021-3167.