CVE-2023-22101: Critical Vulnerability in Oracle WebLogic Server Allows Unauthenticated Attackers to Compromise and Takeover the System

A security vulnerability, identified as CVE-2023-22101, has been discovered in Oracle WebLogic Server, a product of Oracle Fusion Middleware. This vulnerability is found in the core component of Oracle WebLogic Server, and affects versions 12.2.1.4. and 14.1.1... The vulnerability is difficult to exploit, but when successful, it can result in the complete takeover of Oracle WebLogic Server by an unauthenticated attacker with network access via T3 and IIOP.

In this post, we will provide you with the technical details of the vulnerability, share a code snippet to demonstrate its exploitation, and provide links to the original references for further investigation.

Description of the Vulnerability (CVE-2023-22101)

CVE-2023-22101 is a critical vulnerability with a CVSS 3.1 Base Score of 8.1, indicating that an attacker can exploit it to gain unauthorized access to a system, modify its data, and execute arbitrary code. The CVSS Vector for this vulnerability is (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H), highlighting that the vulnerability has high impacts on Confidentiality, Integrity, and Availability.

This vulnerability is difficult to exploit, as it requires an unauthenticated attacker to have network access via T3 and IIOP, which are two of the communication protocols used in Oracle WebLogic Server.

Exploit Details

While we won't provide the complete exploit code for ethical reasons, we will share a code snippet to help you understand how an attacker might exploit this vulnerability. Please note that this is only for educational purposes and should not be used for malicious activities.

import socket
import sys

def build_payload():
    # Malicious payload creation logic goes here
    pass

def send_exploit(server_ip, server_port):
    payload = build_payload()
    sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
    try:
        sock.connect((server_ip, server_port))
        sock.sendall(payload)
        print("Payload sent.")
    except Exception as e:
        print("Error connecting to server:", e)
    finally:
        sock.close()

if __name__ == "__main__":
    if len(sys.argv) != 3:
        print("Usage: python3 exploit.py <server_ip> <server_port>")
        exit()
    server_ip = sys.argv[1]
    server_port = int(sys.argv[2])
    send_exploit(server_ip, server_port)

This code snippet is only provided to demonstrate the basic structure of an exploit. A real-world implementation would require further customization to create a malicious payload and successfully compromise the targeted Oracle WebLogic Server.

For more information on CVE-2023-22101, please refer to the following official sources

1. Oracle Security Alert Advisory: https://www.oracle.com/security-alerts/advisory
2. CVE Details: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-22101
3. NVD - National Vulnerability Database: https://nvd.nist.gov/vuln/detail/CVE-2023-22101

Conclusion

CVE-2023-22101 is a critical vulnerability that affects Oracle WebLogic Server versions 12.2.1.4. and 14.1.1... It allows unauthenticated attackers with network access via T3 and IIOP to compromise and takeover the system. Enterprises using these affected versions of Oracle WebLogic Server should promptly review their security posture, apply appropriate patches and mitigation measures, and monitor their systems for potential exploitation.

Timeline

Published on: 10/17/2023 22:15:15 UTC
Last modified on: 10/23/2023 18:19:52 UTC