CVE-2024-22116 - Arbitrary Code Execution in Monitoring Hosts Section by Restricted Administrators

A new vulnerability has been identified in the Monitoring Hosts section of the popular cybersecurity software. This vulnerability, designated CVE-2024-22116, permits an administrator with restricted permissions to exploit the script execution functionality and execute arbitrary code using the Ping script. The absence of default escaping for script parameters results in the unintentional granting of such privileges, which consequently compromises the infrastructure.

This blog post discusses the critical details of the CVE-2024-22116 vulnerability, along with useful code snippets, links to the original references, and the provided exploit details. By using simple American language, the consequent sections break down the vulnerability into more manageable terms to facilitate understanding.

Code Snippet

Here's an example of a vulnerable code snippet, showcasing the lack of escaping for script parameters:

import sys
import subprocess

def execute_ping(host):
    command = "ping -c 4 {}".format(host)
    output = subprocess.check_output(command, shell=True)

host = sys.argv[1]
execute_ping(host)

In the code snippet provided, the 'host' parameter is directly consumed without appropriate sanitization, allowing possible code injections.

Original References

1. Official CVE Details - CVE-2024-22116
2. Official NVD Entry - CVE-2024-22116

Exploit Details

A malicious user can execute arbitrary code by injecting it into the 'host' parameter in the execute_ping() function. Here is an example exploit where an attacker inserts an additional command, 'whoami', to obtain the user's identity:

Exploit

python vulnerable_script.py "127...1; whoami"

To mitigate this vulnerability, developers should incorporate appropriate input validation measures to counter any potential exploitation attempts. One solution is to use safe functions that do not involve invoking a shell to execute commands. Another method entails applying a proper escaping mechanism for script parameters and restricting administrators with limited permissions from using the script execution functionality.

Conclusion

The CVE-2024-22116 vulnerability poses a significant threat to a system's security, as it allows the execution of arbitrary code without proper permissions. To ensure the utmost security, developers should update their software regularly and take preventative measures such as proper input validation and parameter escaping.

As a general recommendation, always adopt the principle of least privilege to limit the potential damage caused by a user who misuses or abuses their privileges—whether with malicious intent or due to an error. Regularly assess, document, and review your privilege configurations to maintain a secure infrastructure.

Timeline

Published on: 08/12/2024 13:38:15 UTC
Last modified on: 08/12/2024 13:41:36 UTC