CVE-2017-5192 : Vulnerability Insights and Analysis

SaltStack Salt versions prior to 2015.8.13, 2016.3.x before 2016.3.5, and 2016.11.x before 2016.11.2 are affected by a vulnerability that allows for the bypassing of all authentication measures when using the local_batch client in salt-api.

Understanding CVE-2017-5192

This CVE highlights a security issue in SaltStack Salt versions that could lead to the unauthorized bypassing of authentication mechanisms.

What is CVE-2017-5192?

SaltStack Salt versions before specific releases fail to honor external authentication when utilizing the local_batch client in salt-api, enabling the circumvention of all authentication protocols.

The Impact of CVE-2017-5192

The vulnerability in SaltStack Salt versions could result in unauthorized access and compromise of systems due to the lack of proper authentication enforcement.

Technical Details of CVE-2017-5192

SaltStack Salt versions are susceptible to exploitation due to the mishandling of external authentication in the local_batch client.

Vulnerability Description

The issue arises from the failure to respect external authentication, allowing malicious actors to bypass all authentication measures.

Affected Systems and Versions

SaltStack Salt versions prior to 2015.8.13
SaltStack Salt 2016.3.x before 2016.3.5
SaltStack Salt 2016.11.x before 2016.11.2

Exploitation Mechanism

By leveraging the local_batch client in salt-api, attackers can exploit the vulnerability to bypass authentication and gain unauthorized access.

Mitigation and Prevention

It is crucial to take immediate steps to address and prevent the exploitation of CVE-2017-5192.

Immediate Steps to Take

Update SaltStack Salt to versions 2015.8.13, 2016.3.5, or 2016.11.2 or later to mitigate the vulnerability.
Monitor for any unauthorized access or suspicious activities on the affected systems.

Long-Term Security Practices

Implement multi-factor authentication to enhance security measures.
Regularly review and update access control policies to prevent unauthorized access.

Patching and Updates

Apply patches and updates provided by SaltStack to ensure the security of the systems.