CVE-2024-21216 - Critical Vulnerability in Oracle WebLogic Server Leading to Takeover of the System

A critical vulnerability, CVE-2024-21216, has been identified in the Oracle WebLogic Server product of Oracle Fusion Middleware. This vulnerability affects supported versions 12.2.1.4. and 14.1.1.., and can potentially lead to the takeover of the server when successfully exploited. Due to its high impact on the system's Confidentiality, Integrity, and Availability, it holds a CVSS 3.1 Base Score of 9.8. The CVSS Vector for this vulnerability is (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).

Exploit Details

This easily exploitable vulnerability allows an unauthenticated attacker with network access via T3 and IIOP protocols to compromise the Oracle WebLogic Server. Successful attacks can enable the attacker to access sensitive information and even take control of the server.

CVSS 3.1 Base Score: 9.8

CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)

Code Snippet

The vulnerability lies in the Core component of the Oracle WebLogic Server product, so it is important to keep track of the server configurations that use T3 and IIOP protocols. The following code snippet is an example of a configuration with these protocols:

<server>
  ...
  <listen-address>your.server.address</listen-address>
  <listen-port>7001</listen-port>
  <t3-channel>
    <listen-address>your.server.address</listen-address>
    ...
  </t3-channel>
  ...
  <iiop>
    <listen-address>your.server.address</listen-address>
    ...
  </iiop>
  ...
</server>

Mitigation

It is highly recommended that affected users apply the necessary patches provided by Oracle. You can find detailed instructions on how to obtain and apply these patches in the Oracle Critical Patch Update Advisory:

Oracle Critical Patch Update Advisory – January 2022

Additionally, it is advised to closely monitor the access logs for any suspicious activity. Moreover, network access rules should be properly configured to restrict unauthorized access to your WebLogic Server.

Prevention

To avoid falling victim to this vulnerability, ensure that you always have the latest patches and updates installed for your Oracle WebLogic Server. Regularly review your server configurations, network access rules, and general system hardening best practices.

Conclusion

CVE-2024-21216 is a critical vulnerability in Oracle WebLogic Server that can potentially lead to the takeover of your system. As supported versions 12.2.1.4. and 14.1.1.. are affected, it is vital to apply the necessary patches and maintain regular security updates. Staying vigilant against this threat and implementing strong network access rules can further enhance your server's security and prevent unauthorized access.

Timeline

Published on: 10/15/2024 20:15:10 UTC
Last modified on: 10/18/2024 18:19:46 UTC