CVE-2018-3040 in Banking Corporate Lending
Summary
by MITRE
Vulnerability in the Oracle Banking Corporate Lending component of Oracle Financial Services Applications (subcomponent: Core module). Supported versions that are affected are 12.3.0, 12.4.0, 12.5.0, 14.0.0 and 14.1.0. 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 ability to cause a hang or frequently repeatable crash (complete DOS) of Oracle Banking Corporate Lending. CVSS 3.0 Base Score 6.5 (Availability impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H).
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Analysis
by VulDB Data Team • 04/10/2023
The vulnerability identified as CVE-2018-3040 resides within Oracle Banking Corporate Lending component of Oracle Financial Services Applications, specifically within the Core module of affected versions 12.3.0 through 14.1.0. This represents a significant security weakness that affects financial institutions relying on Oracle's corporate lending solutions for their banking operations. The vulnerability falls under the Common Weakness Enumeration category CWE-125, which describes out-of-bounds read conditions that can lead to system instability and potential denial of service scenarios.
The technical flaw manifests as an easily exploitable vulnerability that requires minimal privileges for exploitation, with an attacker needing only network access via HTTP protocol to initiate the attack. This low privilege requirement significantly increases the attack surface and makes the vulnerability particularly dangerous in environments where network access is not strictly controlled. The vulnerability's classification as CVSS 3.0 Base Score 6.5 indicates a moderate to high severity threat, with the availability impact scoring highest at 7.5, demonstrating the potential for complete denial of service conditions that can bring critical banking operations to a halt. The attack vector AV:N indicates network-based exploitation, while AC:L shows low attack complexity, and PR:L demonstrates that only low privileges are required for successful exploitation.
The operational impact of this vulnerability extends beyond simple system unavailability, as successful exploitation can result in unauthorized ability to cause hangs or frequently repeatable crashes that constitute complete denial of service conditions. This means that legitimate users and authorized personnel would be unable to access critical corporate lending functionalities, potentially disrupting loan processing, customer service, and financial operations that depend on these systems. The vulnerability's impact on system availability directly affects business continuity and can result in significant financial losses, regulatory compliance issues, and damage to institutional reputation. Organizations using affected Oracle Financial Services Applications versions face potential operational disruptions that could last from hours to days depending on the severity of the attack and the time required for remediation.
Mitigation strategies should focus on immediate patch application from Oracle as the primary defense mechanism, while also implementing network-level controls to restrict access to the affected components. Organizations should consider network segmentation to isolate critical banking applications, implement intrusion detection systems to monitor for exploitation attempts, and establish incident response procedures specific to denial of service attacks. The vulnerability's characteristics align with ATT&CK technique T1499.004 for network denial of service attacks, making it essential for security teams to monitor for patterns consistent with this attack methodology. Additionally, implementing comprehensive logging and monitoring of HTTP traffic to the affected modules can help detect exploitation attempts before they succeed in causing system disruptions. Regular vulnerability assessments and penetration testing should be conducted to identify similar weaknesses in the broader Oracle Financial Services Applications ecosystem, as this vulnerability demonstrates the potential for exploitation in financial services environments where availability is paramount.