CVE-2024-8190: OS Command Injection Vulnerability in Ivanti Cloud Services Appliance

_Ivanti Cloud Services Appliance versions 4.6 Patch 518 and earlier have been found to contain an OS command injection vulnerability. This vulnerability allows remote authenticated attackers with admin level privileges to achieve remote code execution on the affected system._

Introduction

CVE-2024-8190 is a critical security vulnerability found in the Ivanti Cloud Services Appliance that permits command injection by remote authenticated users with admin level privileges. This post will delve into the details of the vulnerability, including code snippets and information about its exploitation.

Description

Ivanti Cloud Services Appliance (CSA) is an essential component of the Ivanti software infrastructure. The vulnerability found, designated as CVE-2024-8190, specifically relates to an OS command injection vulnerability found in the appliance.

An attacker with valid authentication credentials and admin level privileges can take advantage of this vulnerability by exploiting the lack of proper input validation in the web-based management interface of the CSA. This opens a window for the attacker to inject their code.

Code Snippet

The following code snippet demonstrates a possible exploitation of the OS command injection vulnerability:

import requests

TARGET_URL = 'https://target_ivanti_csa.example.com/';
AUTH_TOKEN = 'your_auth_token_here'

# Injection point
INJECTION_STRING = "admin'; echo 'shell_executed'; #"

payload = {
    'method': 'some_valid_method',
    'args': [INJECTION_STRING]
}

headers = {
    'Authorization': f'Bearer {AUTH_TOKEN}',
    'Content-Type': 'application/json'
}

response = requests.post(TARGET_URL, json=payload, headers=headers)
print(response.text)

This script attempts to exploit the vulnerability by injecting the INJECTION_STRING in the args parameter of a valid API request made with administrator privileges. If successful, the server will execute the injected code, and return the text "shell_executed" in the response.

Original References

1. Ivanti Security Advisory (ISA)
2. National Vulnerability Database (NVD) entry for CVE-2024-8190

This vulnerability can be exploited as follows

1. The attacker must obtain valid admin level credentials for the target Ivanti CSA. This can be done through various means, such as brute force or social engineering.
2. With the proper credentials, the attacker can access the web-based management interface of the Ivanti CSA, which is a potential starting point for exploitation.
3. The attacker can then craft malicious payloads to exploit the lack of input validation in the web-based management interface, injecting their remote code.
4. Success in exploiting the vulnerability allows the attacker to achieve remote code execution, which may result in the compromise of the targeted Ivanti CSA and any connected systems.

Conclusion

CVE-2024-8190 is a severe vulnerability in the Ivanti Cloud Services Appliance, emphasizing the importance of proper input validation and the need to restrict administrative access. Organizations that use Ivanti CSA solutions are urged to update their software to a version beyond Patch 518 of the 4.6 release. Awareness and proper security measures can help to prevent exploitation and mitigate the risks associated with this vulnerability.

_Advanced threat actors may exploit this critical vulnerability for malicious purposes. Protect your Ivanti environment by updating to the latest version, regularly monitoring system logs, and implementing strong access control and authentication mechanisms._

Timeline

Published on: 09/10/2024 21:15:14 UTC
Last modified on: 09/16/2024 13:44:18 UTC