CVE-2024-21021 in Complex Maintenance, Repair, and Overhaul
Summary
by MITRE • 04/17/2024
Vulnerability in the Oracle Complex Maintenance, Repair, and Overhaul product of Oracle E-Business Suite (component: LOV). Supported versions that are affected are 12.2.3-12.2.13. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle Complex Maintenance, Repair, and Overhaul. Successful attacks require human interaction from a person other than the attacker and while the vulnerability is in Oracle Complex Maintenance, Repair, and Overhaul, attacks may significantly impact additional products (scope change). Successful attacks of this vulnerability can result in unauthorized update, insert or delete access to some of Oracle Complex Maintenance, Repair, and Overhaul accessible data as well as unauthorized read access to a subset of Oracle Complex Maintenance, Repair, and Overhaul accessible data. CVSS 3.1 Base Score 6.1 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N).
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Analysis
by VulDB Data Team • 04/05/2025
The vulnerability identified as CVE-2024-21021 affects Oracle Complex Maintenance, Repair, and Overhaul within the Oracle E-Business Suite ecosystem, specifically within the List of Values (LOV) component. This represents a significant security weakness that impacts versions 12.2.3 through 12.2.13 of the suite. The vulnerability's classification as easily exploitable indicates that attackers can leverage it without requiring specialized skills or access privileges, making it particularly dangerous for organizations running these legacy systems. The attack vector operates through HTTP network connections, meaning that an unauthenticated attacker can potentially compromise the system simply by accessing it over the network without prior authentication.
The technical flaw manifests in the LOV component's insufficient validation of user inputs and inadequate access controls during data operations. This weakness allows attackers to perform unauthorized data manipulation activities including updates, inserts, and deletions of sensitive maintenance data. Additionally, the vulnerability enables unauthorized read access to specific subsets of data within the maintenance system, potentially exposing confidential operational information. The vulnerability requires human interaction from users other than the attacker, suggesting that while the initial exploitation may be automated, some form of user involvement or system interaction is necessary to fully realize the attack. The CVSS 3.1 base score of 6.1 indicates a medium severity vulnerability with significant impacts to both confidentiality and integrity, reflecting the potential for data compromise and modification.
The operational impact of this vulnerability extends beyond the immediate scope of the Complex Maintenance, Repair, and Overhaul module, as indicated by the scope change aspect of the attack vector. This means that successful exploitation could potentially affect additional Oracle E-Business Suite components or integrated systems that rely on the maintenance data. Organizations may experience unauthorized modifications to critical maintenance schedules, work orders, and repair records that could disrupt operational workflows and compromise safety protocols. The confidentiality impact suggests that sensitive maintenance data, including equipment specifications, repair histories, and operational procedures, could be accessed by unauthorized parties, potentially exposing proprietary information and operational strategies. The integrity impact indicates that attackers could modify maintenance records, potentially leading to incorrect maintenance procedures or compromised equipment reliability.
Organizations should implement immediate mitigations including network segmentation to limit access to the affected Oracle E-Business Suite components, deployment of web application firewalls to monitor and filter HTTP traffic, and implementation of strict access controls for the LOV functionality. The recommended approach involves applying Oracle's official security patches as soon as they become available, while also conducting comprehensive vulnerability assessments to identify any potential exploitation attempts. Security monitoring should focus on unusual data access patterns and unauthorized modifications to maintenance records. The vulnerability aligns with CWE-284 (Improper Access Control) and may map to ATT&CK techniques involving credential access and privilege escalation. Organizations should also consider implementing additional logging and audit mechanisms to track user interactions with the LOV component and establish incident response procedures specifically addressing potential maintenance data compromise scenarios.