CVE-2016-3463 in FLEXCUBE Direct Banking
Summary
by MITRE
Unspecified vulnerability in the Oracle FLEXCUBE Direct Banking component in Oracle Financial Services Software 12.0.3 allows remote attackers to affect confidentiality and integrity via vectors related to Pre-Login.
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Analysis
by VulDB Data Team • 07/26/2022
The vulnerability identified as CVE-2016-3463 resides within the Oracle FLEXCUBE Direct Banking component of Oracle Financial Services Software version 12.0.3, representing a significant security weakness that affects financial institutions utilizing this banking platform. This unspecified vulnerability specifically impacts the pre-login phase of the authentication process, creating a critical window where attackers can exploit the system's security posture before users establish legitimate sessions. The affected component is part of Oracle's comprehensive financial services software suite designed for banking operations, making this vulnerability particularly concerning given the sensitive nature of financial data and transactions that flow through such systems.
The technical flaw manifests during the pre-login phase, where the system fails to properly validate or secure communications before authentication occurs. This weakness allows remote attackers to manipulate or intercept data exchanges that should remain protected until proper authentication is completed. The vulnerability's impact spans both confidentiality and integrity dimensions, meaning attackers can potentially read sensitive information and modify data within the system. According to CWE classification, this vulnerability aligns with CWE-284 Access Control Issues, specifically related to inadequate access control during authentication phases, and may also fall under CWE-312 Cleartext Storage of Sensitive Data if sensitive information is transmitted or stored in an unencrypted format during pre-login operations.
The operational impact of CVE-2016-3463 extends beyond simple data compromise, as it provides attackers with a foothold within financial systems that could enable more sophisticated attacks. Remote exploitation means that threat actors can target these systems from anywhere on the internet without requiring physical access or local network presence, significantly expanding the attack surface. Financial institutions using Oracle FLEXCUBE Direct Banking may experience unauthorized access to customer account information, transaction data, and system configuration details. The vulnerability's presence during the pre-login phase creates a particularly dangerous scenario where attackers can potentially manipulate session establishment processes, leading to session hijacking or credential theft that could persist beyond the initial attack vector.
Organizations affected by this vulnerability should implement immediate mitigations including network segmentation to isolate the affected components, deployment of intrusion detection systems to monitor for suspicious pre-login activities, and implementation of secure communication protocols that enforce encryption even during authentication phases. The ATT&CK framework categorizes this vulnerability under T1071.004 Application Layer Protocol: DNS, as attackers may use DNS-related techniques to establish initial access or maintain persistence within the network. Additionally, the vulnerability may enable techniques categorized under T1566 Credential Access through network infiltration, where attackers can leverage the compromised pre-login phase to escalate privileges and gain deeper access to financial systems. Regular security assessments and monitoring of authentication logs should be implemented to detect potential exploitation attempts, while patch management procedures should be prioritized to address the underlying vulnerability in Oracle's software components.