CVE-2024-21020 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-2024-21020 affects Oracle Complex Maintenance, Repair, and Overhaul component within the Oracle E-Business Suite ecosystem. This security flaw resides in the List of Values (LOV) functionality and impacts versions 12.2.3 through 12.2.13 of the suite. The vulnerability represents a significant security concern as it allows unauthenticated attackers to compromise the targeted system through HTTP network access without requiring any prior authentication credentials or privileged access. The CVSS 3.1 base score of 6.1 indicates a medium severity threat level with confidentiality and integrity impacts rated as low, though the potential for scope expansion makes this vulnerability particularly concerning for enterprise environments.
The technical implementation of this vulnerability stems from insufficient access controls within the LOV component of the maintenance and repair system. Attackers can exploit this weakness by crafting specific HTTP requests that bypass normal authentication mechanisms, potentially gaining unauthorized access to sensitive maintenance data. The vulnerability requires human interaction from an individual other than the attacker, suggesting that the exploitation may involve social engineering elements or targeted user actions that facilitate the attack. The attack vector is network-based, meaning that an attacker can potentially exploit this vulnerability from external network locations without requiring physical access to the system infrastructure.
The operational impact of CVE-2024-21020 extends beyond the immediate scope of the Complex Maintenance, Repair, and Overhaul component, as indicated by the scope change aspect of the vulnerability. Successful exploitation can result in unauthorized modification of maintenance records, including updates, inserts, and deletions of critical data within the system. Additionally, attackers can gain unauthorized read access to sensitive subsets of data that should remain protected within the maintenance and repair environment. This compromise affects the integrity and confidentiality of maintenance workflows, potentially leading to operational disruptions, data corruption, or unauthorized changes to maintenance schedules and repair procedures that could impact system reliability and safety.
Organizations should implement immediate mitigations including network segmentation to restrict access to the affected Oracle E-Business Suite components, deployment of web application firewalls to monitor and filter suspicious HTTP requests, and implementation of strong access controls for the LOV functionality. The vulnerability aligns with CWE-284 (Improper Access Control) and may be exploited through techniques consistent with ATT&CK tactics such as T1190 (Exploit Public-Facing Application) and T1071.3 (Application Layer Protocol: Web Protocols). Regular monitoring of system logs for unusual access patterns, implementation of network intrusion detection systems, and immediate patch deployment upon Oracle's release of security updates should form part of the comprehensive mitigation strategy. The vulnerability's classification under CVSS vector AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N indicates that while the attack requires minimal technical expertise and no prior privileges, human interaction is necessary for successful exploitation, making user education and awareness programs critical components of the defense strategy.