CVE-2021-42786 Explained : Impact and Mitigation

A critical Remote Code Execution vulnerability was discovered in the SteelCentral AppInternals Dynamic Sampling Agent, affecting versions 10.x, 12.13.0, and 11.8.8.

Understanding CVE-2021-42786

This CVE involves a severe vulnerability in the SteelCentral AppInternals Dynamic Sampling Agent that allows Remote Code Execution.

What is CVE-2021-42786?

The vulnerability in the AgentControllerServlet of the Dynamic Sampling Agent enables attackers to execute malicious code through API requests without input validation.

The Impact of CVE-2021-42786

The vulnerability poses a critical risk with a CVSS 3.1 base score of 9.8, impacting confidentiality, integrity, and availability of affected systems.

Technical Details of CVE-2021-42786

The following provides a detailed insight into the technical aspects of this CVE.

Vulnerability Description

The vulnerability allows Remote Code Execution through API requests without input validation.

Affected Systems and Versions

SteelCentral AppInternals Dynamic Sampling Agent versions 10.x, 12.13.0, and 11.8.8 are affected.

Exploitation Mechanism

Attackers can inject malicious payloads into API requests due to the lack of input validation.

Mitigation and Prevention

Taking immediate action and following security best practices is crucial in mitigating the risks associated with CVE-2021-42786.

Immediate Steps to Take

Update the affected SteelCentral AppInternals Dynamic Sampling Agent to a non-affected version.
Implement proper input validation mechanisms for incoming requests.
Monitor network traffic for any suspicious activities.

Long-Term Security Practices

Regularly apply security patches and updates to all software components.
Conduct security trainings for staff to raise awareness about code security best practices.

Patching and Updates

Aternity has likely released patches to address the vulnerability; ensure prompt installation and updates to secure systems against potential exploits.