CVE-2020-2684 in FLEXCUBE Universal Banking
Summary
by MITRE
Vulnerability in the Oracle FLEXCUBE Universal Banking product of Oracle Financial Services Applications (component: Infrastructure). Supported versions that are affected are 12.0.1-12.4.0 and 14.0.0-14.3.0. Easily exploitable vulnerability allows low privileged attacker with network access via HTTP to compromise Oracle FLEXCUBE Universal Banking. Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all Oracle FLEXCUBE Universal Banking accessible data. CVSS 3.0 Base Score 6.5 (Confidentiality impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N).
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Analysis
by VulDB Data Team • 03/22/2024
The vulnerability identified as CVE-2020-2684 affects Oracle FLEXCUBE Universal Banking, a comprehensive banking solution within Oracle Financial Services Applications. This critical security flaw resides in the infrastructure component of the software, specifically impacting versions ranging from 12.0.1 through 12.4.0 and 14.0.0 through 14.3.0. The vulnerability represents a significant risk to financial institutions relying on this platform for their core banking operations, as it allows exploitation by attackers with minimal privileges and network access through standard HTTP protocols.
The technical nature of this vulnerability stems from insufficient access controls within the Oracle FLEXCUBE Universal Banking infrastructure, creating an avenue for unauthorized data access. The CVSS 3.0 scoring system rates this vulnerability with a base score of 6.5, classified as medium severity, though the confidentiality impact is rated as high. The attack vector requires network access via HTTP with low privilege levels, making it particularly concerning as it can be exploited by adversaries who have minimal initial access to the network. The vulnerability's exploitability is considered easily accessible, meaning that skilled attackers can leverage this flaw without requiring specialized tools or extensive technical knowledge.
The operational impact of successfully exploiting CVE-2020-2684 can be devastating for financial institutions. Attackers who successfully compromise the system gain unauthorized access to critical data and potentially complete access to all data accessible through the Oracle FLEXCUBE Universal Banking platform. This includes sensitive customer information, transaction records, account details, and other proprietary banking data that could be used for financial fraud, identity theft, or other malicious activities. The vulnerability essentially undermines the fundamental security controls that protect financial data, potentially leading to significant financial losses and regulatory penalties for affected organizations.
Organizations should implement immediate mitigations including applying the relevant Oracle security patches and updates released to address this vulnerability. Network segmentation and access controls should be strengthened to limit exposure, while monitoring systems should be enhanced to detect anomalous access patterns that might indicate exploitation attempts. The vulnerability aligns with CWE-284 (Improper Access Control) and represents a clear violation of the principle of least privilege, which is fundamental to cybersecurity frameworks. From an ATT&CK perspective, this vulnerability maps to techniques involving privilege escalation and credential access, potentially enabling attackers to progress through the kill chain by gaining access to sensitive data that would otherwise be protected by proper access controls. Financial institutions should also conduct thorough security assessments to identify any potential unauthorized access that may have occurred prior to implementing protective measures.