CVE-2019-2395 in WebLogic Server
Summary
by MITRE
Vulnerability in the Oracle WebLogic Server component of Oracle Fusion Middleware (subcomponent: WLS - Web Services). The supported version that is affected is 10.3.6.0. Easily exploitable vulnerability allows low privileged 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 and unauthorized ability to cause a partial denial of service (partial DOS) of Oracle WebLogic Server. CVSS 3.0 Base Score 5.4 (Confidentiality and Availability impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:L).
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Analysis
by VulDB Data Team • 06/27/2023
The vulnerability identified as CVE-2019-2395 resides within Oracle WebLogic Server's Web Services component, specifically within the WLS subcomponent of Oracle Fusion Middleware. This flaw represents a significant security weakness that affects version 10.3.6.0 of the server software. The vulnerability's classification as easily exploitable indicates that attackers with minimal privileges and network access can potentially compromise the system. The attack vector requires only HTTP network access, making it particularly dangerous as it can be exploited from remote locations without requiring physical access to the network infrastructure. The CVSS 3.0 score of 5.4 reflects the moderate severity of this vulnerability, with specific impacts to both confidentiality and availability aspects of the system.
The technical nature of this vulnerability stems from inadequate access controls within the WebLogic Server's web services implementation. Attackers with low privileges can leverage this flaw to gain unauthorized read access to sensitive data within the server's accessible scope. This unauthorized data access capability represents a confidentiality breach where adversaries can potentially extract information that should remain protected within the server environment. Additionally, the vulnerability enables attackers to cause partial denial of service conditions, which can disrupt legitimate operations and reduce system availability. The partial denial of service impact suggests that while the system may not completely crash, certain functionalities or services may become unavailable to authorized users, affecting operational continuity and business processes.
From an operational standpoint, the implications of CVE-2019-2395 extend beyond simple data exposure. Organizations running affected WebLogic Server versions face potential data breaches that could compromise sensitive enterprise information, including user credentials, business data, and system configurations. The partial denial of service component creates additional operational risks where legitimate business processes may be disrupted, potentially leading to financial losses and reduced productivity. The vulnerability's accessibility via HTTP network access means that threat actors can exploit it from anywhere on the internet, making it particularly dangerous for organizations that do not properly segment their network infrastructure or implement adequate perimeter security controls. This vulnerability aligns with CWE-284 (Improper Access Control) and represents a classic example of insufficient privilege validation in web service implementations.
The attack surface for this vulnerability is particularly concerning given Oracle WebLogic Server's widespread deployment across enterprise environments. Security professionals should note that this vulnerability can be exploited by attackers with minimal privileges, suggesting that internal threat actors or compromised low-privilege accounts could potentially leverage this flaw to escalate their access. The CVSS vector analysis indicates that no user interaction is required for exploitation, which means that automated attacks could potentially target vulnerable systems without human intervention. Organizations should consider implementing network segmentation strategies, firewall rules to restrict HTTP access to WebLogic Server components, and regular vulnerability assessments to identify systems running affected versions. The vulnerability also demonstrates the importance of timely patch management and adherence to security best practices for enterprise application servers, as this flaw could be exploited to gain unauthorized access to critical business systems. Organizations should also monitor for indicators of compromise related to HTTP traffic patterns and unauthorized access attempts to their WebLogic Server installations.