A critical vulnerability (CVE-2023-22086) has been discovered in the Oracle WebLogic Server product of Oracle Fusion Middleware, a popular enterprise application server utilized by numerous organizations across the globe. The affected component is the "Core" of the server and specifically impacts server versions and 14.1.1... This post will discuss the details of this vulnerability, its exploit methodology, and provide links to essential references and resources.

Vulnerability Overview

CVE-2023-22086 represents an easily exploitable vulnerability that allows unauthenticated attackers with network access via T3 or IIOP protocols to compromise the Oracle WebLogic Server. Successful exploitation of this weakness can grant adversaries unauthorized access to critical data or even complete access to all Oracle WebLogic Server accessible data. The vulnerability has been assigned a CVSS 3.1 Base Score of 7.5, which signifies confidentiality impacts. The complete CVSS vector is as follows: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

Exploit Details

The vulnerability resides in the Core component of Oracle's WebLogic Server, rendering it susceptible to attacks by unauthenticated adversaries equipped with network access. The T3 and IIOP application protocols serve as potential attack vectors, allowing intruders to access and compromise the server. Consequently, targeted organizations risk suffering severe data breaches, unauthorized manipulations, or unauthorized restorations of server data.

Code Snippet

Unfortunately, we cannot provide a direct code snippet showcasing the exploitation of this vulnerability, as doing so could enable malicious use. However, a general understanding of the T3 and IIOP protocols and how they communicate with Oracle WebLogic Server is essential in grasping the exploit's mechanism and potential consequences.

For instance, T3 protocol is used for communication between components within the WebLogic Server environment, and IIOP is a widely utilized communication protocol, particularly in Java-based applications that rely on the Common Object Request Broker Architecture (CORBA). If left unsecured, these communication channels can enable unauthorized access to the server.

References and Resources

It is of utmost importance to patch the affected Oracle WebLogic Server versions ( and 14.1.1..) to mitigate any potential risks. For more details, refer to the following original references and sources:

1. Oracle Security Advisory: https://www.oracle.com/security-alerts/cpuoct2023.html
2. CVE Details: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-22086
3. National Vulnerability Database (NVD): https://nvd.nist.gov/vuln/detail/CVE-2023-22086


CVE-2023-22086 serves as a stern reminder for organizations to regularly update and maintain their software and systems, particularly those housing sensitive data or essential infrastructure. This critical vulnerability showcases the potential dangers posed by seemingly innocuous application protocols, as well as the necessity for comprehensive security policies and practices. Addressing such issues is a fundamental aspect of safeguarding valuable resources and preserving an organization's reputation and integrity.


Published on: 10/17/2023 22:15:13 UTC
Last modified on: 10/23/2023 18:19:42 UTC