CVE-2017-3487 in FLEXCUBE Investor Servicing
Summary
by MITRE
Vulnerability in the Oracle FLEXCUBE Investor Servicing component of Oracle Financial Services Applications (subcomponent: Unit Trust). Supported versions that are affected are 12.0.1, 12.0.2, 12.0.3, 12.0.4, 12.1.0, 12.2.0 and 12.3.0. Difficult to exploit vulnerability allows low privileged attacker with network access via HTTP to compromise Oracle FLEXCUBE Investor Servicing. Successful attacks of this vulnerability can result in unauthorized update, insert or delete access to some of Oracle FLEXCUBE Investor Servicing accessible data. CVSS 3.0 Base Score 3.1 (Integrity impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N).
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Analysis
by VulDB Data Team • 12/19/2020
The vulnerability identified as CVE-2017-3487 resides within Oracle FLEXCUBE Investor Servicing, a critical component of Oracle Financial Services Applications designed for managing investor servicing operations. This specific flaw affects multiple versions of the Unit Trust subcomponent including 12.0.1 through 12.3.0, representing a significant attack surface across the Oracle financial services ecosystem. The vulnerability operates within the context of financial services applications where data integrity and access controls are paramount for regulatory compliance and operational security.
The technical nature of this vulnerability manifests as a weakness in the application's authorization mechanisms, allowing an attacker with minimal privileges to exploit a network-based HTTP interface. This represents a classic case of insufficient authorization checks where the system fails to properly validate user permissions before granting access to modify data within the investor servicing framework. The CVSS score of 3.1 reflects the relatively low complexity required to exploit this vulnerability, though it demands network access and targets the integrity aspect of the CIA triad. The vulnerability's classification under CWE 285 (Improper Authorization) aligns with the fundamental security principle that systems should enforce proper access controls to prevent unauthorized modifications.
The operational impact of this vulnerability extends beyond simple data integrity concerns, potentially allowing attackers to perform unauthorized modifications to investor records, transaction histories, and other sensitive financial data. While the current CVSS assessment shows limited confidentiality impact, the ability to insert, update, or delete data within the investor servicing environment creates substantial risk for financial institutions. The vulnerability's exploitation could lead to financial loss, regulatory violations, and reputational damage for affected organizations. Attackers could manipulate investor portfolios, alter transaction records, or disrupt the normal functioning of investor servicing operations, particularly affecting unit trust management systems that handle complex financial instruments and investor relationships.
Organizations affected by CVE-2017-3487 should prioritize immediate remediation through Oracle's official security patches and updates, while implementing network segmentation and access controls to limit exposure. The vulnerability demonstrates the importance of regular security assessments and patch management processes within financial services environments where regulatory compliance and data protection are critical. Security teams should conduct comprehensive vulnerability scans to identify all instances of affected Oracle FLEXCUBE versions and implement monitoring solutions to detect potential exploitation attempts. The ATT&CK framework classification would likely include techniques related to privilege escalation and data manipulation within application environments, emphasizing the need for layered security approaches that include both network-based controls and application-level access restrictions. Organizations should also consider implementing additional logging and audit controls to detect unauthorized data modifications and maintain compliance with financial regulatory requirements.