CVE-2021-25284 : Exploit Details and Defense Strategies

An issue was discovered in through SaltStack Salt before 3002.5. salt.modules.cmdmod can log credentials to the info or error log level.

Understanding CVE-2021-25284

This CVE involves a vulnerability in SaltStack Salt software that can potentially expose credentials to the info or error log level.

What is CVE-2021-25284?

CVE-2021-25284 is a security issue found in SaltStack Salt versions prior to 3002.5. It allows the salt.modules.cmdmod to inadvertently log credentials to logs at the info or error level.

The Impact of CVE-2021-25284

The impact of this CVE is significant as it can lead to exposure of sensitive information such as credentials, potentially resulting in unauthorized access or other security breaches.

Technical Details of CVE-2021-25284

This section delves into the technical aspects of the CVE.

Vulnerability Description

The vulnerability in SaltStack Salt before 3002.5 allows the

salt.modules.cmdmod

to log credentials to the info or error log level, potentially exposing sensitive information.

Affected Systems and Versions

All versions of SaltStack Salt before 3002.5 are affected by this vulnerability, regardless of the specific vendor or product.

Exploitation Mechanism

Attackers can exploit this vulnerability by leveraging the ability of the

cmdmod

module to log data, leading to the exposure of credentials in the generated logs.

Mitigation and Prevention

To safeguard systems from the risks associated with CVE-2021-25284, certain mitigation and prevention measures should be implemented.

Immediate Steps to Take

Upgrade SaltStack Salt to version 3002.5 or later to address this vulnerability promptly.
Monitor logs and audit trails for any signs of unauthorized access or unusual activity.

Long-Term Security Practices

Regularly review and update access controls and permissions to limit exposure of sensitive information.
Conduct security training for personnel to raise awareness about logging practices and potential risks.

Patching and Updates

Stay informed about security advisories and patches released by SaltStack to ensure timely application of updates and fixes.
Establish a patch management process to systematically apply security patches across the IT environment.