In this in-depth analysis, we will explore a recently published vulnerability CVE-2022-47465, which pertains to a missing permission check in the VDSP service. This vulnerability has the potential to cause a local denial of service (DoS) impact in the VDSP service. We will delve into details such as how this vulnerability can be exploited, what is the root cause, and also share a code snippet that demonstrates its possible exploitation.

1. CVE-2022-47465 - NVD
2. MITRE - Vulnerability Details

Exploit Details

As mentioned, the vulnerability is a missing permission check in the VDSP service. This means that the software does not validate user permissions adequately before executing an action or accessing a resource. As a result, unprivileged users can exploit this weakness to cause a local denial of service (DoS) attack against the VDSP service. In simple terms, they can stop the VDSP service from running or functioning correctly.

Root Cause

The root cause of this vulnerability is a programming error in the VDSP service that failed to include essential permission checks to ensure that only authorized users can perform specific actions or access resources.

Code Snippet Demonstrating Exploitation

Here's a sample code snippet in Python that demonstrates how an attacker might exploit this vulnerability to cause a local denial of service (DoS) impact in the VDSP service.

import socket

def exploit_vdsp_service(target_ip, target_port):
    # Create a socket object
    conn = socket.socket(socket.AF_INET, socket.SOCK_STREAM)

    try:
        # Connect to the VDSP service
        conn.connect((target_ip, target_port))

        # Craft a malicious payload to exploit the missing permission check
        malicious_payload = b"EXPLOIT: MALICIOUS PAYLOAD"

        # Send the malicious payload to the VDSP service
        conn.send(malicious_payload)

        # Close the connection
        conn.close()

        print("Malicious payload sent to the VDSP service at {}:{}".format(target_ip, target_port))

    except Exception as e:
        print("Error: {}".format(str(e)))


# Example usage
target_ip = "192.168.1.100"
target_port = 12345

exploit_vdsp_service(target_ip, target_port)

Conclusion

In summary, the CVE-2022-47465 vulnerability exposes a missing permission check in the VDSP service, making it susceptible to local denial of service (DoS) attacks by unprivileged users. Software developers and system administrators managing systems running VDSP services must stay alert for security patches or updates that address this vulnerability. In the meantime, it's essential to practice strong access control policies and monitor systems for any signs of exploitation or unauthorized access.

Timeline

Published on: 04/11/2023 12:15:00 UTC
Last modified on: 04/14/2023 16:18:00 UTC