CVE-2024-21887 : Vulnerability Insights and Analysis

This CVE record highlights a critical command injection vulnerability found in web components of Ivanti Connect Secure (9.x, 22.x) and Ivanti Policy Secure (9.x, 22.x). It allows authenticated administrators to execute arbitrary commands on the appliance by sending specially crafted requests.

Understanding CVE-2024-21887

This section will delve into the details of CVE-2024-21887, providing insights into the vulnerability's nature and impact.

What is CVE-2024-21887?

CVE-2024-21887 is a command injection vulnerability that affects Ivanti Connect Secure (ICS) and Ivanti Policy Secure (IPS) versions 9.x and 22.x. It enables authenticated administrators to execute arbitrary commands on the appliance through specially crafted requests.

The Impact of CVE-2024-21887

The impact of this vulnerability is rated as critical with a CVSS base score of 9.1. As it allows for arbitrary command execution, threat actors could exploit this flaw to gain unauthorized access, manipulate sensitive data, or disrupt system operations.

Technical Details of CVE-2024-21887

In this section, we will explore the vulnerability description, affected systems and versions, as well as the exploitation mechanism associated with CVE-2024-21887.

Vulnerability Description

The vulnerability arises due to improper input validation in the web components of Ivanti Connect Secure and Ivanti Policy Secure, which enables authenticated administrators to inject and execute arbitrary commands.

Affected Systems and Versions

Ivanti Connect Secure (ICS)
Versions: 9.1R18, 22.6R2
Ivanti Policy Secure (IPS)
Versions: 9.1R18, 22.6R1

Exploitation Mechanism

By leveraging this command injection vulnerability, authenticated administrators can send crafted requests to the affected systems and execute unauthorized commands, potentially leading to severe security breaches.

Mitigation and Prevention

To protect systems from the risks posed by CVE-2024-21887, immediate steps should be taken along with the implementation of long-term security practices and timely patching.

Immediate Steps to Take

Ivanti Connect Secure (ICS) and Ivanti Policy Secure (IPS) administrators should restrict access to the vulnerable components and review access controls.
Monitor network traffic for any suspicious activity or attempts to exploit the vulnerability.
Implement strict validation mechanisms for user inputs to prevent unauthorized command execution.

Long-Term Security Practices

Regularly update and patch Ivanti products to mitigate known vulnerabilities and enhance security measures.
Conduct security training for administrators to increase awareness of potential risks and best practices for secure system management.

Patching and Updates

Ivanti has released updates and patches to address the command injection vulnerability in Connect Secure and Policy Secure versions. Administrators are strongly advised to apply these patches promptly to safeguard their systems from exploitation.

By following these mitigation strategies and maintaining proactive security measures, organizations can reduce the likelihood of falling victim to CVE-2024-21887 and similar security threats.