CVE-2017-10071 in FLEXCUBE Universal Banking
Summary
by MITRE
Vulnerability in the Oracle FLEXCUBE Universal Banking component of Oracle Financial Services Applications (subcomponent: All Modules). Supported versions that are affected are 11.3.0, 11.4.0, 12.0.1, 12.0.2, 12.0.3, 12.1.0, 12.2.0 and 12.3.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle FLEXCUBE Universal Banking. Successful attacks require human interaction from a person other than the attacker. Successful attacks of this vulnerability can result in unauthorized update, insert or delete access to some of Oracle FLEXCUBE Universal Banking accessible data. CVSS 3.0 Base Score 4.3 (Integrity impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N).
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Analysis
by VulDB Data Team • 01/03/2021
The vulnerability identified as CVE-2017-10071 affects Oracle FLEXCUBE Universal Banking, a comprehensive banking application suite widely deployed in financial institutions globally. This critical security flaw resides within the Oracle Financial Services Applications ecosystem, specifically targeting the FLEXCUBE Universal Banking component across multiple version releases including 11.3.0 through 12.3.0. The vulnerability represents a significant risk to financial organizations as it enables unauthorized access to core banking data through a network-based attack vector that requires minimal privileges from an unauthenticated attacker. The affected subcomponent encompasses all modules within the FLEXCUBE Universal Banking framework, indicating a systemic weakness that could potentially impact the entire banking application suite.
The technical nature of this vulnerability stems from insufficient input validation and authentication mechanisms within the HTTP handling components of the FLEXCUBE Universal Banking system. Attackers can exploit this weakness by sending specially crafted HTTP requests that bypass normal authentication procedures, allowing them to perform unauthorized data manipulation operations. The vulnerability's classification as easily exploitable indicates that the attack surface is accessible without requiring specialized tools or extensive technical knowledge. The CVSS 3.0 scoring of 4.3 reflects the integrity impact severity, where attackers can achieve unauthorized update, insert, or delete operations against sensitive banking data. The attack vector requires network access via HTTP and the presence of human interaction from users other than the attacker, suggesting that the exploitation may involve social engineering or user interaction components that could be leveraged to amplify the attack effectiveness.
The operational impact of this vulnerability extends beyond simple data integrity concerns to potentially compromise the entire financial transaction processing system. Successful exploitation could enable attackers to modify customer records, alter transaction histories, manipulate account balances, or insert fraudulent entries into the banking system. This capability directly violates fundamental banking security principles and could result in significant financial losses, regulatory penalties, and reputational damage for affected institutions. The vulnerability's potential to affect all modules within the FLEXCUBE Universal Banking system means that the attack surface is extensive, potentially allowing attackers to access sensitive financial data across multiple banking functions including customer management, transaction processing, and account administration.
Organizations should implement immediate mitigations including network segmentation, firewall rule configurations to restrict HTTP access to critical banking systems, and mandatory patching of affected versions. The vulnerability's CVSS vector indicates that it requires low attack complexity and no privilege requirements, making it particularly dangerous for organizations with inadequate network security controls. According to CWE standards, this vulnerability aligns with CWE-284 (Improper Access Control) and CWE-352 (Cross-Site Request Forgery) classifications, highlighting the fundamental security flaws in access control mechanisms. Additionally, the ATT&CK framework would categorize this vulnerability under T1190 (Exploit Public-Facing Application) and T1071.004 (Application Layer Protocol: DNS), emphasizing the network-based exploitation techniques that attackers would employ. Organizations must also consider implementing intrusion detection systems to monitor for suspicious HTTP traffic patterns and establish robust incident response procedures to address potential exploitation attempts. The human interaction requirement suggests that security awareness training for banking staff becomes crucial to prevent social engineering components that may accompany this vulnerability exploitation.