CVE-2017-3482 in FLEXCUBE Universal Banking
Summary
by MITRE
Vulnerability in the Oracle FLEXCUBE Universal Banking component of Oracle Financial Services Applications (subcomponent: Infrastructure). Supported versions that are affected are 12.0.0, 12.0.1, 12.0.2, 12.0.3, 12.1.0, 12.2.0 and 12.3.0. Easily "exploitable" vulnerability allows low privileged attacker with network access via HTTP to compromise Oracle FLEXCUBE Universal Banking. Successful attacks require human interaction from a person other than the attacker and while the vulnerability is in Oracle FLEXCUBE Universal Banking, attacks may significantly impact additional products. Successful attacks of this vulnerability can result in unauthorized update, insert or delete access to some of Oracle FLEXCUBE Universal Banking accessible data as well as unauthorized read access to a subset of Oracle FLEXCUBE Universal Banking accessible data. CVSS 3.0 Base Score 5.4 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N).
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Analysis
by VulDB Data Team • 12/19/2020
The vulnerability identified as CVE-2017-3482 resides within Oracle FLEXCUBE Universal Banking, a critical component of Oracle Financial Services Applications that serves as the foundation for banking operations. This particular flaw manifests in the Infrastructure subcomponent of the FLEXCUBE Universal Banking system, affecting multiple version releases including 12.0.0 through 12.3.0, indicating a widespread impact across the product lifecycle. The vulnerability's classification as easily exploitable suggests that attackers can leverage relatively straightforward techniques to gain unauthorized access to the system, making it particularly concerning for financial institutions that rely heavily on these platforms for core banking services.
The technical nature of this vulnerability stems from insufficient access controls and authentication mechanisms within the HTTP interface of the FLEXCUBE Universal Banking system. Attackers with low privilege levels and network access can exploit this weakness to perform unauthorized operations against the database and application components. The vulnerability's CVSS 3.0 score of 5.4 reflects a moderate severity level, with the primary impacts being confidentiality and integrity, though the vector analysis shows the attack requires human interaction from individuals other than the attacker. This human interaction requirement typically involves social engineering or phishing techniques where end users are manipulated into performing actions that facilitate the attack. The vulnerability's potential to affect additional products beyond the primary target indicates a cascading risk that could extend beyond the immediate FLEXCUBE environment.
The operational impact of this vulnerability extends far beyond simple data access violations, as successful exploitation can result in unauthorized modification of critical financial data through update, insert, and delete operations. Additionally, attackers can gain unauthorized read access to sensitive information that should remain protected within the banking system. This dual impact on both confidentiality and integrity creates significant risks for financial institutions, potentially leading to data corruption, unauthorized transactions, and exposure of sensitive customer information. The CVSS vector analysis indicates that the vulnerability requires network access (AV:N) with low attack complexity (AC:L) and low privilege requirements (PR:L), making it accessible to attackers with minimal technical expertise. The fact that the attack requires human interaction (UI:R) suggests that social engineering components are necessary, but this also means that the vulnerability can be exploited through user manipulation rather than purely technical means.
Organizations affected by CVE-2017-3482 should implement immediate mitigations including applying the relevant Oracle security patches, strengthening access controls and authentication mechanisms, and implementing network segmentation to limit exposure. The vulnerability aligns with CWE-284 (Improper Access Control) and represents a significant concern from an ATT&CK perspective, particularly under the T1078 (Valid Accounts) and T1068 (Local Privilege Escalation) techniques. Financial institutions should also consider implementing enhanced monitoring and logging of HTTP traffic to detect anomalous behavior, while conducting regular security assessments to identify potential exploitation attempts. The vulnerability's impact on multiple versions of the software emphasizes the importance of comprehensive patch management programs and regular security updates to prevent similar incidents. Organizations should also review their incident response procedures to ensure readiness for potential exploitation attempts that could result in unauthorized data modification or access.