CVE-2023-21856 in iSetup
Summary
by MITRE • 01/18/2023
Vulnerability in the Oracle iSetup product of Oracle E-Business Suite (component: General Ledger Update Transform, Reports). Supported versions that are affected are 12.2.3-12.2.12. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle iSetup. Successful attacks of this vulnerability can result in unauthorized creation, deletion or modification access to critical data or all Oracle iSetup accessible data. CVSS 3.1 Base Score 7.5 (Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N).
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Analysis
by VulDB Data Team • 09/17/2024
The vulnerability identified as CVE-2023-21856 represents a critical security flaw within Oracle iSetup, a component of the Oracle E-Business Suite ecosystem. This vulnerability specifically affects the General Ledger Update Transform and Reports functionality, targeting versions 12.2.3 through 12.2.12. The flaw resides in the authentication mechanisms of the iSetup module, creating an exploitable condition that allows attackers to gain unauthorized access without requiring valid credentials. The vulnerability's classification as easily exploitable indicates that the attack vector requires minimal technical expertise and can be executed through standard network-based methods. The CVSS 3.1 scoring system rates this vulnerability at 7.5 out of 10, with particular emphasis on the high integrity impact score of 0.8, reflecting the potential for unauthorized data modification and the severity of possible system compromise.
The technical implementation of this vulnerability stems from insufficient authentication controls within the Oracle iSetup component, specifically within the General Ledger Update Transform functionality. Attackers can leverage HTTP network access to exploit this weakness, bypassing the normal authentication procedures that should protect sensitive financial data processing capabilities. The vulnerability's design flaw allows for unauthorized modification of critical financial data, including the ability to create, delete, or modify data accessible through the iSetup interface. This represents a fundamental breakdown in the security architecture where network-based access can directly translate into data manipulation capabilities, particularly affecting financial reporting and general ledger functions that are core to enterprise financial operations. The vulnerability's impact extends across the entire Oracle iSetup accessible data domain, potentially compromising the integrity of financial records and transaction processing systems.
The operational impact of this vulnerability extends beyond simple data integrity concerns to encompass significant business continuity and regulatory compliance risks. Organizations utilizing affected Oracle E-Business Suite versions face potential exposure to unauthorized financial data manipulation that could affect audit trails, financial reporting accuracy, and overall enterprise financial integrity. The vulnerability's ability to enable unauthorized access without authentication creates a pathway for attackers to alter critical financial records, potentially leading to fraudulent transactions or data corruption that could affect multiple business processes. The unauthenticated nature of the attack means that any network-connected system with the vulnerable iSetup component could be compromised, regardless of physical security measures or internal access controls. This vulnerability directly impacts the CIA triad, specifically compromising integrity by allowing unauthorized modifications to critical business data.
Organizations should immediately implement mitigations including network segmentation to restrict access to vulnerable iSetup components, deployment of web application firewalls to monitor and filter HTTP traffic, and implementation of additional authentication layers where possible. The vulnerability aligns with CWE-287, which addresses improper authentication issues in software systems, and represents a clear violation of the principle of least privilege in access control. From an ATT&CK framework perspective, this vulnerability maps to techniques involving initial access through network services and privilege escalation through data manipulation. Organizations should prioritize patch management and application of Oracle's security updates as the primary remediation strategy. Additionally, network monitoring should be enhanced to detect unusual HTTP traffic patterns targeting iSetup components, and access controls should be reviewed to ensure that only authorized personnel can access sensitive financial data processing systems. The vulnerability's classification as a medium severity issue in the CVSS scoring system indicates that organizations should treat this as a high priority security concern requiring immediate attention and remediation.