CVE-2016-5543 in FLEXCUBE Enterprise Limits
Summary
by MITRE
Unspecified vulnerability in the Oracle FLEXCUBE Enterprise Limits and Collateral Management component in Oracle Financial Services Applications 12.0.0 and 12.1.0 allows remote attackers to affect confidentiality and integrity via vectors related to INFRA.
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Analysis
by VulDB Data Team • 09/27/2022
The vulnerability identified as CVE-2016-5543 resides within Oracle FLEXCUBE Enterprise Limits and Collateral Management component, a critical financial services application designed for managing enterprise-level credit limits and collateral arrangements. This component forms part of Oracle Financial Services Applications suite, which serves financial institutions globally for core banking operations. The unspecified nature of the vulnerability indicates that the exact technical flaw remains undisclosed, though it has been categorized as affecting both confidentiality and integrity aspects of the system. The vulnerability specifically relates to INFRA vectors, suggesting it operates within the infrastructure layer of the application architecture.
The technical flaw manifests as a remote attack surface that allows adversaries to exploit the system without requiring physical access or local privileges. This remote accessibility significantly broadens the potential attack scope, enabling malicious actors to compromise the system from external networks. The vulnerability's impact on both confidentiality and integrity means that attackers could potentially access sensitive financial data while simultaneously modifying critical operational parameters. The INFRA classification indicates the vulnerability likely resides in underlying system components such as network protocols, authentication mechanisms, or data processing layers that handle core infrastructure functions. Such vulnerabilities typically represent foundational weaknesses that can serve as entry points for more sophisticated attacks targeting financial data integrity and proprietary business information.
The operational impact of CVE-2016-5543 extends beyond immediate data compromise to potentially disrupt critical financial operations within enterprise banking environments. Financial institutions relying on FLEXCUBE for limits management and collateral handling could face severe consequences including unauthorized access to credit exposure data, manipulation of collateral values, or disruption of limit enforcement mechanisms. The confidentiality breach could expose sensitive client information, exposure limits, and proprietary risk management algorithms that are fundamental to financial institution operations. Integrity compromise may result in unauthorized modifications to critical financial parameters, potentially leading to incorrect credit decisions, fraudulent transactions, or regulatory compliance violations. These impacts align with CWE-200 (Information Exposure) and CWE-310 (Cryptographic Issues) classifications, where the vulnerability's infrastructure nature suggests potential weaknesses in system-level security controls.
Organizations should implement comprehensive mitigation strategies including immediate patching of affected Oracle Financial Services Applications versions 12.0.0 and 12.1.0, network segmentation to limit access to the vulnerable component, and enhanced monitoring of network traffic for suspicious activities related to the INFRA vectors. Security controls should focus on strengthening authentication mechanisms and implementing robust access controls for the limits and collateral management functions. The vulnerability's classification aligns with ATT&CK techniques such as T1071.004 (Application Layer Protocol: DNS) and T1566 (Phishing), where attackers may leverage the remote access capability to establish persistent access or conduct data exfiltration operations. Regular security assessments and vulnerability scanning should be conducted to identify potential exploitation of similar infrastructure-level weaknesses, as the vulnerability's nature suggests it may be part of broader architectural security gaps in financial services applications.