A critical vulnerability has been identified in the Oracle WebLogic Server product of Oracle Fusion Middleware (component: Core). The vulnerability affects supported versions and 14.1.1... This easily exploitable vulnerability allows an unauthenticated attacker with network access via T3, IIOP protocols to compromise Oracle WebLogic Server. Successful exploitation of this vulnerability can result in unauthorized access to critical data, or even complete access to all Oracle WebLogic Server accessible data.

The Common Vulnerability Scoring System (CVSS) 3.1 Base Score for this vulnerability is 7.5, considering the Confidentiality impacts. The CVSS Vector is: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N).

In this post, we will discuss the details of the vulnerability, how to exploit it, and how to mitigate it.

Vulnerability Details

The vulnerability exists in the Core component of Oracle WebLogic Server. An attacker can exploit this vulnerability by sending a specially crafted request over the T3, IIOP network protocols to an affected version of Oracle WebLogic Server.

The following code snippet demonstrates how an attacker could potentially exploit this vulnerability

import socket
import sys

TARGET_IP = ""  # Replace with your target IP
TARGET_PORT = 7001  # Target WebLogic Server T3 port

payload = "..."
# This payload, if crafted correctly, would compromise the server

def exploit(ip, port, payload):
    s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
    s.connect((ip, port))
    response = s.recv(1024)
    return response

if __name__ == "__main__":
    response = exploit(TARGET_IP, TARGET_PORT, payload)
    if "SUCCESS" in response:  # Replace "SUCCESS" with the actual response indicating success
        print("Exploit succeeded!")
        print("Exploit failed.")

Original References and Exploit Details

For more details about the vulnerability and its exploit, you can refer to the original disclosure at the following locations:

1. CVE-2023-22108 - NVD Details
2. Oracle Security Advisory
3. Vulnerability disclosure by the researcher who found it (Replace with the actual link)


To mitigate this vulnerability, Oracle has released patches for the affected versions. Users are advised to apply the patches as soon as possible. If you cannot apply the patches immediately, you can mitigate the risk by restricting access to the T3, IIOP network protocols from untrusted sources. You can also monitor for any suspicious activity indicating potential exploitation attempts.

In the long term, it is recommended that you upgrade your Oracle WebLogic Server to the latest version to ensure that your installation is protected against future vulnerabilities.

In conclusion, the CVE-2023-22108 vulnerability poses a significant risk to users of Oracle WebLogic Server, and immediate action is required to address the exploit and protect your critical data. Take the necessary steps to secure your installation by following the guidelines provided in this post.


Published on: 10/17/2023 22:15:15 UTC
Last modified on: 10/23/2023 18:19:57 UTC