CVE-2020-2718 in Banking Corporate Lending
Summary
by MITRE
Vulnerability in the Oracle Banking Corporate Lending product of Oracle Financial Services Applications (component: Core). Supported versions that are affected are 12.3.0-12.4.0 and 14.0.0-14.3.0. Easily exploitable vulnerability allows low privileged attacker with network access via HTTP to compromise Oracle Banking Corporate Lending. Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all Oracle Banking Corporate Lending accessible data as well as unauthorized update, insert or delete access to some of Oracle Banking Corporate Lending accessible data. CVSS 3.0 Base Score 7.1 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N).
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Analysis
by VulDB Data Team • 03/22/2024
The vulnerability identified as CVE-2020-2718 resides within Oracle Banking Corporate Lending, a critical component of Oracle Financial Services Applications designed for corporate lending operations. This flaw affects specific version ranges including 12.3.0 through 12.4.0 and 14.0.0 through 14.3.0, representing a substantial portion of the product's supported releases. The vulnerability's classification as easily exploitable indicates that attackers with minimal technical expertise and network access via HTTP can successfully leverage this weakness, making it particularly dangerous for financial institutions that rely on these systems for core banking operations.
The technical nature of this vulnerability stems from insufficient access controls within the application's authentication and authorization mechanisms. The flaw allows a low privileged attacker to bypass normal security restrictions and gain unauthorized access to sensitive financial data within the corporate lending system. The CVSS 3.0 scoring of 7.1 reflects the severity of the potential impact, with high confidentiality impact and low integrity impact, indicating that unauthorized data access represents the primary threat vector. The vulnerability's CVSS vector (AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N) reveals that network-based attacks require low attack complexity, only low privilege requirements, and no user interaction, while the scope remains unchanging, meaning the attack affects the same security scope as the vulnerable component.
The operational impact of this vulnerability extends beyond simple data theft, as successful exploitation can result in complete access to all accessible data within the Oracle Banking Corporate Lending system. Additionally, attackers can perform unauthorized updates, inserts, or deletions of data, creating potential for both data exfiltration and data corruption within critical financial processes. This dual impact on confidentiality and integrity creates a significant risk for financial institutions, as corporate lending systems contain sensitive customer information, loan details, credit assessments, and other proprietary financial data that requires strict protection. The vulnerability essentially provides attackers with a backdoor into the core lending operations, potentially disrupting business continuity and exposing institutions to regulatory compliance violations.
Organizations should prioritize immediate patching of affected systems to remediate this vulnerability, as the CVSS score indicates a high-risk exposure that could lead to substantial financial losses and reputational damage. The vulnerability's classification under CWE 284 (Improper Access Control) aligns with common attack patterns documented in the ATT&CK framework under T1078 (Valid Accounts) and T1566 (Phishing) as attackers may leverage this weakness after gaining initial access through social engineering or other means. Security teams should implement network segmentation and monitoring to detect unauthorized access attempts, while also conducting comprehensive access control reviews to ensure that privilege levels align with the principle of least privilege. Additionally, organizations should consider implementing additional authentication controls, such as multi-factor authentication, to reduce the risk of exploitation even if the underlying vulnerability remains unpatched temporarily.