CVE-2023-22101 in WebLogic Server
Summary
by MITRE • 10/25/2023
Vulnerability in the Oracle WebLogic Server product of Oracle Fusion Middleware (component: Core). Supported versions that are affected are 12.2.1.4.0 and 14.1.1.0.0. Difficult to exploit vulnerability allows unauthenticated attacker with network access via T3, IIOP to compromise Oracle WebLogic Server. Successful attacks of this vulnerability can result in takeover of Oracle WebLogic Server. CVSS 3.1 Base Score 8.1 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H).
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Analysis
by VulDB Data Team • 03/06/2025
The vulnerability identified as CVE-2023-22101 represents a critical security flaw within Oracle WebLogic Server, specifically within the Core component of Oracle Fusion Middleware. This vulnerability affects two major versions including 12.2.1.4.0 and 14.1.1.0.0, making it a significant concern for organizations relying on these server implementations. The flaw exists in the server's handling of network protocols and authentication mechanisms, creating a pathway for malicious actors to gain unauthorized access to critical enterprise infrastructure.
This vulnerability operates through the T3 and IIOP protocols, which are fundamental communication mechanisms used by WebLogic Server for internal and external communications. The T3 protocol specifically serves as the primary communication channel for WebLogic Server's administration and management functions, while IIOP provides interoperability with CORBA-based systems. The attack vector requires only network access without any authentication requirements, making exploitation particularly dangerous as it can be executed remotely by attackers who have no prior credentials or access rights. The CVSS score of 8.1 indicates high severity with impacts spanning confidentiality, integrity, and availability, suggesting that successful exploitation could lead to complete system compromise.
The operational impact of this vulnerability extends far beyond simple unauthorized access, as it enables full takeover of the affected Oracle WebLogic Server instances. This level of compromise allows attackers to execute arbitrary code, modify system configurations, access sensitive data, and potentially use the compromised server as a launching point for further attacks within the network infrastructure. Organizations running affected versions face significant risk of data breaches, service disruptions, and potential regulatory compliance violations. The difficulty to exploit rating of "hard" suggests that while sophisticated attackers can leverage this vulnerability, it requires specific technical knowledge and conditions to be successfully exploited, though the low barrier to entry through network access makes it attractive to threat actors.
Organizations should immediately implement mitigations including network segmentation to restrict access to WebLogic Server ports, particularly those associated with T3 and IIOP protocols. The recommended approach involves disabling these protocols entirely when not required for business operations, as outlined in the CWE-699 category of software security weaknesses related to protection mechanisms. Additionally, implementing network access controls through firewalls and intrusion detection systems can help prevent unauthorized access attempts. The ATT&CK framework categorizes this vulnerability under the T1190 technique of Exploit Public-Facing Application, highlighting the need for proper network boundary protection. Organizations should also consider deploying WebLogic Server updates and patches as soon as they become available through Oracle's security advisories, while maintaining comprehensive monitoring of network traffic for suspicious T3 and IIOP protocol activity. The vulnerability underscores the importance of principle of least privilege and regular security assessments of enterprise application servers to prevent similar incidents in the future.