CVE-2018-2707 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 and 12.4.0. 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 creation, deletion or modification access to critical data or all Oracle Banking Corporate Lending accessible data and unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of Oracle Banking Corporate Lending. CVSS 3.0 Base Score 8.1 (Integrity and Availability impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H).
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Analysis
by VulDB Data Team • 01/30/2021
The vulnerability identified as CVE-2018-2707 resides within the Oracle Banking Corporate Lending component of Oracle Financial Services Applications, specifically affecting the Core module in versions 12.3.0 and 12.4.0. This represents a critical security flaw that demonstrates the inherent risks associated with financial application components that handle sensitive corporate lending data. The vulnerability's classification as easily exploitable indicates that attackers with minimal privileges and network access can potentially compromise the system, highlighting the importance of proper access controls and network segmentation in financial environments. The CVSS 3.0 score of 8.1 reflects the severity of impact, with high scores for both integrity and availability, indicating that successful exploitation could result in significant data manipulation and service disruption. The vulnerability's accessibility via HTTP connections means that attackers can potentially exploit it from external networks without requiring physical access to the system.
The technical nature of this vulnerability stems from insufficient input validation or authentication mechanisms within the Core module of the Oracle Banking Corporate Lending system. Attackers with low privileged network access can leverage this weakness to perform unauthorized actions that affect the integrity and availability of the entire system. The potential for unauthorized creation, deletion, or modification of critical data represents a severe threat to data integrity, particularly in financial applications where data accuracy is paramount for regulatory compliance and business operations. Additionally, the ability to cause complete denial of service through hang or frequently repeatable crashes demonstrates the availability impact that can severely disrupt business operations and potentially lead to financial losses. This vulnerability directly relates to CWE-284 (Improper Access Control) and CWE-400 (Uncontrolled Resource Consumption) as it allows for both unauthorized access to system resources and the potential for resource exhaustion through repeated exploitation attempts.
The operational impact of CVE-2018-2707 extends beyond simple data compromise to encompass complete system availability disruption that can severely impact financial institutions' operations. Organizations relying on Oracle Banking Corporate Lending for their corporate lending processes face significant risk of service interruption that could affect loan processing, customer service, and regulatory reporting. The vulnerability's ability to allow unauthorized modification of critical data could lead to financial losses, regulatory violations, and reputational damage. Furthermore, the potential for complete system crashes means that business continuity planning must account for the possibility of extended service outages. The low privilege requirement for exploitation suggests that this vulnerability could be leveraged by insiders or attackers who have gained minimal network access, making it particularly dangerous in environments where network segmentation is not properly implemented. This aligns with ATT&CK technique T1078 (Valid Accounts) and T1499 (Endpoint Denial of Service) as attackers could potentially use compromised accounts to exploit this vulnerability and cause service disruption.
Organizations should implement immediate mitigations including applying the relevant Oracle security patches, implementing network segmentation to limit access to the affected system, and monitoring for unauthorized access attempts. The vulnerability's CVSS vector indicates that network-level protections such as firewalls and intrusion detection systems should be configured to restrict access to the affected applications. Regular security assessments and vulnerability scanning should be conducted to identify similar weaknesses in other Oracle Financial Services Applications components. Additionally, organizations should review their access control policies to ensure that only authorized personnel have access to the affected system and that proper authentication mechanisms are in place. The implementation of web application firewalls and input validation controls can help prevent exploitation attempts, while comprehensive logging and monitoring can provide early detection of potential attacks. Given the high availability impact, business continuity plans should include procedures for rapid recovery from system crashes and data restoration from backups. The vulnerability's exploitation potential underscores the necessity of maintaining current security patches and implementing defense-in-depth strategies to protect critical financial applications from similar threats.