CVE-2019-2847 in FLEXCUBE Investor Servicing
Summary
by MITRE
Vulnerability in the Oracle FLEXCUBE Investor Servicing component of Oracle Financial Services Applications (subcomponent: Infrastructure). Supported versions that are affected are 12.0.1, 12.0.3, 12.0.4, 12.1.0, 12.3.0, 12.4.0, 14.0.0 and 14.1.0. Easily exploitable vulnerability allows low privileged attacker with network access via HTTP to compromise Oracle FLEXCUBE Investor Servicing. Successful attacks require human interaction from a person other than the attacker. Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all Oracle FLEXCUBE Investor Servicing accessible data. CVSS 3.0 Base Score 5.7 (Confidentiality impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N).
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Analysis
by VulDB Data Team • 07/05/2020
The vulnerability identified as CVE-2019-2847 affects the Oracle FLEXCUBE Investor Servicing component within Oracle Financial Services Applications, specifically targeting the Infrastructure subcomponent. This security flaw exists across multiple version releases including 12.0.1, 12.0.3, 12.0.4, 12.1.0, 12.3.0, 12.4.0, 14.0.0, and 14.1.0, indicating a widespread impact within the financial services application ecosystem. The vulnerability resides in the way the system handles HTTP requests and authentication processes, creating a pathway for malicious actors to exploit the system's security controls.
The technical nature of this vulnerability stems from insufficient access controls and authentication mechanisms within the FLEXCUBE Investor Servicing infrastructure. Attackers with low privilege levels and network access via HTTP can potentially exploit this weakness to gain unauthorized access to sensitive financial data. The vulnerability requires human interaction from users other than the attacker, suggesting that social engineering or targeted user manipulation may be necessary to facilitate successful exploitation. This characteristic aligns with CWE-284, which addresses improper access control issues in software systems. The attack vector operates through network-based HTTP communication, making it accessible to attackers who can establish network connectivity to the target system.
The operational impact of this vulnerability is significant given the nature of financial services applications and the sensitive data they handle. Successful exploitation can result in unauthorized access to critical financial data or complete access to all data accessible through the FLEXCUBE Investor Servicing system. This represents a high-impact confidentiality breach that could expose sensitive customer information, transaction details, and financial records. The CVSS 3.0 base score of 5.7 indicates a medium severity vulnerability, but the potential for "unauthorized access to critical data or complete access to all Oracle FLEXCUBE Investor Servicing accessible data" suggests that the actual business impact could be severe. Organizations using these vulnerable versions face substantial risk of data breaches and regulatory compliance violations, particularly under financial services regulations such as SOX, GDPR, and PCI DSS standards.
Mitigation strategies for CVE-2019-2847 should focus on immediate patching of affected Oracle FLEXCUBE Investor Servicing installations to the latest supported versions that contain security fixes. Organizations should implement network segmentation and access controls to limit HTTP access to the vulnerable components, ensuring that only authorized personnel can interact with the system. Additionally, security monitoring should be enhanced to detect unusual access patterns or unauthorized attempts to access sensitive data. The vulnerability's classification under CVSS vector AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N indicates that network-level access with low privileges and user interaction are required for exploitation, which suggests implementing additional authentication layers and user awareness training. Organizations should also consider implementing application firewalls and web application security controls to protect against HTTP-based attacks. This vulnerability demonstrates the importance of maintaining up-to-date security patches and following the principle of least privilege in financial services environments where data sensitivity is paramount. The ATT&CK framework would classify this vulnerability under techniques related to credential access and privilege escalation, as attackers may leverage this weakness to gain deeper system access and extract sensitive financial information.