CVE-2020-2871 in Advanced Outbound Telephony
Summary
by MITRE
Vulnerability in the Oracle Advanced Outbound Telephony product of Oracle E-Business Suite (component: User Interface). Supported versions that are affected are 12.1.1-12.1.3 and 12.2.3-12.2.9. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle Advanced Outbound Telephony. Successful attacks require human interaction from a person other than the attacker and while the vulnerability is in Oracle Advanced Outbound Telephony, attacks may significantly impact additional products. Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all Oracle Advanced Outbound Telephony accessible data as well as unauthorized update, insert or delete access to some of Oracle Advanced Outbound Telephony accessible data. CVSS 3.0 Base Score 8.2 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N).
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Analysis
by VulDB Data Team • 05/08/2025
The vulnerability identified as CVE-2020-2871 represents a critical security flaw within Oracle Advanced Outbound Telephony component of the Oracle E-Business Suite ecosystem. This vulnerability specifically affects versions 12.1.1 through 12.1.3 and 12.2.3 through 12.2.9, making it a widespread issue across multiple release branches of the enterprise suite. The flaw resides within the User Interface component of the Advanced Outbound Telephony product, which serves as the primary interface for telephony operations within the Oracle E-Business Suite environment. This positioning makes the vulnerability particularly dangerous as it sits at the intersection of user interaction and core telephony functionality, creating multiple attack vectors for potential exploitation.
The technical nature of this vulnerability allows an unauthenticated attacker to compromise the Oracle Advanced Outbound Telephony system through network-based HTTP access, requiring minimal prerequisites for exploitation. The CVSS 3.0 score of 8.2 reflects the severity of the flaw, with a base score indicating high impact across confidentiality and integrity domains. The attack vector AV:N indicates network accessibility, while AC:L shows low attack complexity, making this vulnerability particularly dangerous as it can be exploited remotely without authentication requirements. The PR:N designation reveals that no privileges are required for exploitation, while UI:R indicates that successful attacks require human interaction from a legitimate user, suggesting that social engineering or targeted user engagement may be necessary to complete the attack chain. The S:C classification demonstrates that the vulnerability can affect additional products beyond the targeted component, indicating potential cascading effects throughout the Oracle E-Business Suite environment.
The operational impact of CVE-2020-2871 extends far beyond simple unauthorized access, as successful exploitation can result in complete compromise of Oracle Advanced Outbound Telephony accessible data. Attackers can achieve unauthorized access to critical data and gain unauthorized update, insert, or delete access to sensitive information within the system. This comprehensive access capability aligns with CWE-284, which addresses improper access control vulnerabilities, and represents a significant threat to data integrity and confidentiality within enterprise telephony systems. The vulnerability's potential to impact additional products demonstrates the interconnected nature of Oracle E-Business Suite components, where compromise of one element can create cascading security failures. Organizations utilizing affected versions face substantial risk of data breaches, unauthorized modifications to telephony configurations, and potential disruption of critical business communications that rely on the Advanced Outbound Telephony functionality.
Mitigation strategies for this vulnerability should prioritize immediate patch deployment from Oracle, as the flaw affects multiple supported versions across different release branches. Organizations should implement network-level controls including firewall rules to restrict access to Oracle E-Business Suite components, particularly those exposed via HTTP interfaces. The implementation of network segmentation can help limit the potential impact of successful exploitation by containing compromised systems within specific network zones. Additionally, organizations should conduct comprehensive vulnerability assessments to identify all instances of affected Oracle E-Business Suite versions and ensure proper access controls are implemented for administrative functions. Monitoring and logging of HTTP traffic to Oracle components should be enhanced to detect potential exploitation attempts. The vulnerability's classification under ATT&CK framework as a privilege escalation or credential access vector underscores the need for comprehensive security monitoring and incident response procedures. Organizations should also consider implementing additional authentication mechanisms and access controls for Oracle E-Business Suite interfaces, particularly for components that handle sensitive telephony data and operations.