CVE-2019-2441 in WebLogic Server
Summary
by MITRE
Vulnerability in the Oracle WebLogic Server component of Oracle Fusion Middleware (subcomponent: Application Container - JavaEE). The supported version that is affected is 12.2.1.3. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle WebLogic Server. Successful attacks of this vulnerability can result in unauthorized read access to a subset of Oracle WebLogic Server accessible data. CVSS 3.0 Base Score 5.3 (Confidentiality impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N).
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Analysis
by VulDB Data Team • 06/28/2023
The vulnerability identified as CVE-2019-2441 affects Oracle WebLogic Server version 12.2.1.3 within the Application Container - JavaEE subcomponent of Oracle Fusion Middleware. This represents a significant security weakness that exposes organizations to potential data breaches through unauthorized network access. The vulnerability operates within the HTTP protocol layer, making it particularly dangerous as it requires no authentication credentials for exploitation, allowing attackers to directly target the server infrastructure without prior access rights. The affected system component serves as a critical application container that hosts enterprise Java applications, making it a prime target for cyber adversaries seeking to access sensitive business data.
This vulnerability manifests as an easily exploitable flaw that permits unauthenticated attackers to gain unauthorized read access to specific subsets of data within the Oracle WebLogic Server environment. The technical nature of the vulnerability stems from insufficient input validation or access control mechanisms within the application container, allowing malicious actors to bypass normal authentication procedures. The CVSS 3.0 scoring system rates this vulnerability with a base score of 5.3, indicating a medium severity threat that specifically impacts confidentiality aspects of the system. The attack vector is classified as network-based (AV:N) with low complexity requirements (AC:L), meaning that exploitation can occur remotely without requiring specialized skills or privileged access. The vulnerability's impact is limited to read access operations (C:L) while maintaining no influence on integrity or availability aspects of the system.
The operational impact of CVE-2019-2441 extends beyond simple data exposure, as it represents a fundamental weakness in the security architecture of Oracle WebLogic Server implementations. Organizations utilizing this version of the middleware face potential exposure of sensitive business data, including but not limited to customer information, financial records, and proprietary business intelligence. The vulnerability's designation as easily exploitable means that automated attack tools could potentially leverage this weakness, amplifying the threat landscape for affected enterprises. Security professionals must consider the broader implications of this vulnerability within enterprise networks, particularly when WebLogic Server instances are exposed to untrusted networks or lack proper network segmentation controls. The vulnerability's impact is further compounded by the fact that it affects a core middleware component that likely serves multiple applications and services within an organization's IT infrastructure.
Mitigation strategies for CVE-2019-2441 should prioritize immediate patch deployment from Oracle, as this represents the most effective defense against the vulnerability. Organizations should implement network-level controls including firewall rules that restrict HTTP access to WebLogic Server instances, particularly when such access is not strictly required for business operations. The principle of least privilege should be enforced by ensuring that only authorized personnel have access to administrative functions of the WebLogic Server, while network segmentation can help limit the potential impact of successful exploitation attempts. Security monitoring should be enhanced to detect unusual access patterns or unauthorized data read attempts against WebLogic Server components. Additionally, organizations should conduct comprehensive vulnerability assessments to identify all instances of affected Oracle WebLogic Server versions and ensure proper patch management procedures are in place to prevent similar vulnerabilities from arising in the future. This vulnerability aligns with CWE-284 (Improper Access Control) and represents a clear violation of security best practices outlined in various cybersecurity frameworks including the MITRE ATT&CK matrix for privilege escalation and credential access techniques.