CVE-2019-3027 in Application Object Library
Summary
by MITRE
Vulnerability in the Oracle Application Object Library product of Oracle E-Business Suite (component: Login Help). Supported versions that are affected are 12.2.5-12.2.9. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle Application Object Library. Successful attacks of this vulnerability can result in unauthorized ability to cause a partial denial of service (partial DOS) of Oracle Application Object Library. CVSS 3.0 Base Score 5.3 (Availability impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L).
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Analysis
by VulDB Data Team • 01/09/2024
The vulnerability identified as CVE-2019-3027 resides within the Oracle Application Object Library component of Oracle E-Business Suite, specifically affecting the Login Help functionality. This weakness exists in versions 12.2.5 through 12.2.9, representing a significant security gap that exposes organizations to potential exploitation by unauthenticated attackers. The vulnerability's classification as easily exploitable indicates that attackers require minimal technical expertise or resources to leverage this flaw effectively. The attack vector is accessible via HTTP network connections, making it particularly dangerous as it can be exploited from remote locations without requiring any prior authentication credentials or privileged access to the system.
The technical flaw manifests as a weakness in the application's authentication and authorization mechanisms within the Login Help component, allowing attackers to bypass normal access controls and potentially manipulate the application's behavior. This vulnerability operates at the application layer and specifically targets the availability aspect of the system's security posture according to the CVSS 3.0 scoring system. The base score of 5.3 indicates a moderate severity level, though the availability impact rating of 5.3 suggests that successful exploitation could result in partial denial of service conditions that would disrupt normal application functionality and user access to critical business applications.
The operational impact of this vulnerability extends beyond simple service disruption, as it represents a potential pathway for attackers to gain unauthorized access to sensitive business data and applications within the Oracle E-Business Suite environment. Organizations utilizing affected versions face risks including unauthorized data access, potential system compromise, and disruption of critical business processes that rely on the application object library for proper functioning. The partial denial of service condition could affect multiple users simultaneously, particularly during peak business hours when application availability is critical for operational continuity. This vulnerability aligns with CWE-284 (Improper Access Control) and represents a classic example of insufficient authentication mechanisms that allow unauthorized access to application resources.
Mitigation strategies should prioritize immediate patch deployment for affected Oracle E-Business Suite versions, as Oracle typically releases security patches to address such vulnerabilities in their quarterly updates. Organizations should also implement network-level restrictions such as firewall rules to limit access to the affected application components, particularly restricting HTTP access to trusted network segments only. The implementation of additional authentication layers and monitoring solutions can help detect and prevent exploitation attempts. Security teams should conduct comprehensive vulnerability assessments to identify any additional attack surfaces within the Oracle E-Business Suite environment that might be similarly affected by authentication bypass vulnerabilities. According to ATT&CK framework, this vulnerability maps to T1190 (Exploit Public-Facing Application) and T1071.004 (Application Layer Protocol: DNS) as attackers may leverage this weakness to establish persistent access to business applications. Organizations should also consider implementing network segmentation and least privilege access controls to minimize potential blast radius if exploitation occurs, while maintaining detailed logging and monitoring capabilities to detect anomalous access patterns that might indicate exploitation attempts.