CVE-2021-0265 : What You Need to Know

An unvalidated REST API in the AppFormix Agent of Juniper Networks AppFormix allows an unauthenticated remote attacker to execute commands as root on the host running the AppFormix Agent, granting the attacker full control over the environment.

Understanding CVE-2021-0265

This CVE affects Juniper Networks' Contrail Insights versions prior to 3.1.22, 3.2.14, 3.3.0. It was published on April 14, 2021.

What is CVE-2021-0265?

CVE-2021-0265 involves an unvalidated REST API in the AppFormix Agent of Juniper Networks AppFormix, enabling a remote attacker to execute commands as root when certain conditions are met.

The Impact of CVE-2021-0265

The vulnerability carries a CVSS base score of 8.1 (High), with high impacts on confidentiality, integrity, and availability. Successful exploitation could lead to full control of the affected environment.

Technical Details of CVE-2021-0265

The vulnerability allows remote command execution on the Contrail Insights application versions less than 3.1.22, 3.2.14, 3.3.0.

Vulnerability Description

An unauthenticated attacker can run commands as root on the host where AppFormix Agent is located, potentially taking over the system.

Affected Systems and Versions

Juniper Networks AppFormix versions preceding 3.1.22, 3.2.14, and 3.3.0 are impacted by this vulnerability.

Exploitation Mechanism

The attacker can exploit the unvalidated REST API to execute arbitrary commands on the host running the AppFormix Agent.

Mitigation and Prevention

To address CVE-2021-0265, Juniper Networks released updated versions - AppFormix 3.1.22, 3.2.14, 3.3.0, and subsequent releases.

Immediate Steps to Take

Upgrade to the fixed versions provided by Juniper Networks to prevent exploitation of this vulnerability.

Long-Term Security Practices

Regularly update software and follow security best practices to protect against similar vulnerabilities.

Patching and Updates

Apply the released patches promptly to secure the Contrail Insights application.