CVE-2020-14879 in BI Publisher
Summary
by MITRE • 10/21/2020
Vulnerability in the BI Publisher product of Oracle Fusion Middleware (component: E-Business Suite - XDO). Supported versions that are affected are 5.5.0.0.0, 11.1.1.9.0, 12.2.1.3.0 and 12.2.1.4.0. Easily exploitable vulnerability allows low privileged attacker with network access via HTTP to compromise BI Publisher. While the vulnerability is in BI Publisher, attacks may significantly impact additional products. Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all BI Publisher accessible data as well as unauthorized update, insert or delete access to some of BI Publisher accessible data. CVSS 3.1 Base Score 8.5 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N).
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Analysis
by VulDB Data Team • 11/24/2020
The vulnerability identified as CVE-2020-14879 represents a critical security flaw within Oracle Fusion Middleware's BI Publisher component, specifically within the E-Business Suite XDO module. This vulnerability affects multiple version streams including 5.5.0.0.0, 11.1.1.9.0, 12.2.1.3.0, and 12.2.1.4.0, indicating a widespread impact across Oracle's Fusion Middleware ecosystem. The flaw manifests as an easily exploitable weakness that can be leveraged by low-privileged attackers who possess network access through HTTP protocols. The CVSS 3.1 scoring system assigns this vulnerability a base score of 8.5, reflecting high severity with significant confidentiality and integrity impacts while maintaining a moderate availability impact. The vulnerability's classification under CVSS vector AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N demonstrates its accessibility characteristics where network-based attacks require low privileges but can lead to catastrophic consequences including unauthorized access to critical business data and complete data compromise.
The technical nature of this vulnerability stems from inadequate input validation and access control mechanisms within the BI Publisher component, which processes XML data and document generation requests. Attackers can exploit this weakness to gain unauthorized access to sensitive business intelligence data, potentially compromising entire corporate information systems that rely on BI Publisher for report generation and data visualization. The vulnerability's impact extends beyond the immediate BI Publisher application as evidenced by the CVSS scope vector S:C, indicating that successful exploitation can affect additional products within the Oracle Fusion Middleware environment. This cascading effect occurs because BI Publisher often serves as a central data processing component that interfaces with various Oracle applications, creating potential attack vectors that can propagate through interconnected systems. The vulnerability allows attackers to achieve unauthorized update, insert, or delete operations on accessible data, creating both data integrity and confidentiality breaches that can severely compromise business operations and regulatory compliance requirements.
The operational impact of CVE-2020-14879 extends far beyond simple data theft, as it enables attackers to manipulate business intelligence workflows and potentially disrupt critical business processes. Organizations utilizing affected Oracle Fusion Middleware versions face significant risk of data exfiltration, where attackers can extract sensitive corporate information including financial data, customer records, and proprietary business intelligence. The vulnerability's classification as easily exploitable means that attackers can leverage automated tools to discover and exploit the flaw without requiring advanced technical skills or significant time investment. This characteristic makes the vulnerability particularly dangerous in environments where security monitoring may be insufficient or where multiple Oracle applications share common infrastructure components. The potential for unauthorized data modification creates additional operational risks including false reporting, manipulated business metrics, and compromised decision-making processes based on corrupted data.
Organizations should implement immediate mitigation strategies including applying Oracle's security patches and updates as released through their regular patching cycles. Network segmentation and access control measures should be strengthened to limit exposure of vulnerable BI Publisher components to untrusted networks. The implementation of web application firewalls and intrusion detection systems can help monitor for exploitation attempts targeting this specific vulnerability. Security administrators should conduct thorough vulnerability assessments to identify all instances of affected Oracle Fusion Middleware versions across their infrastructure and prioritize remediation efforts accordingly. According to CWE classification, this vulnerability aligns with CWE-20: Improper Input Validation, which addresses the fundamental issue of inadequate validation of input parameters that can lead to various injection and access control vulnerabilities. From an ATT&CK framework perspective, this vulnerability maps to T1190: Exploit Public-Facing Application, representing a common attack pattern where adversaries target exposed web applications to gain initial access to enterprise networks. Organizations should also consider implementing comprehensive logging and monitoring solutions to detect anomalous access patterns that may indicate exploitation attempts, particularly focusing on unusual data access or modification activities within BI Publisher environments.