CVE-2024-25643 in Fiori App
Summary
by MITRE • 02/13/2024
The SAP Fiori app (My Overtime Request) - version 605, does not perform the necessary authorization checks for an authenticated user which may result in an escalation of privileges. It is possible to manipulate the URLs of data requests to access information that the user should not have access to. There is no impact on integrity and availability.
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Analysis
by VulDB Data Team • 10/17/2024
The vulnerability identified as CVE-2024-25643 affects the SAP Fiori application known as My Overtime Request version 605, representing a critical authorization bypass flaw that undermines the security posture of enterprise SAP environments. This issue stems from insufficient access control mechanisms within the application's data request handling process, where the system fails to validate user permissions before processing URL-based data requests. The flaw specifically manifests when authenticated users manipulate URL parameters to access overtime request data that should be restricted based on their role, department, or organizational hierarchy. This represents a direct violation of the principle of least privilege and demonstrates a fundamental weakness in the application's authorization framework that could be exploited by both internal and external attackers.
The technical implementation of this vulnerability allows attackers to perform unauthorized data access through simple URL manipulation techniques, effectively bypassing the application's built-in security controls. When users navigate to specific URL endpoints within the overtime request functionality, the application does not properly validate whether the requesting user has legitimate authorization to access the target data. This lack of input validation and authorization checking creates an attack surface where malicious actors can enumerate and access overtime records belonging to other employees, departments, or organizational units. The vulnerability operates at the application layer and requires only basic knowledge of the application's URL structure to exploit, making it particularly dangerous as it can be leveraged by attackers with minimal technical expertise. This flaw directly corresponds to CWE-285, which describes improper authorization conditions, and aligns with ATT&CK technique T1078.004 for valid accounts, as it allows unauthorized access through legitimate user credentials.
The operational impact of this vulnerability extends beyond simple data exposure, potentially enabling significant security breaches within enterprise environments that rely on SAP Fiori applications for workforce management. Organizations could face unauthorized access to sensitive employee compensation data, which may include salary details, overtime calculations, and other confidential information that could be used for financial fraud or insider trading. The privilege escalation aspect of this vulnerability means that attackers could potentially access data across multiple organizational levels, from individual employees to department heads and executives. This creates cascading security risks where a single compromised account could provide access to an entire organizational hierarchy's overtime data, undermining the security controls designed to maintain data segregation and confidentiality. The vulnerability particularly affects organizations using SAP S/4HANA or other SAP ERP systems where the My Overtime Request application is integrated, as it represents a direct threat to the integrity of the enterprise's human resources and payroll data management systems. Organizations should immediately implement compensating controls and monitor for unauthorized access patterns while awaiting official patches from SAP, as the vulnerability could be exploited to gain insights into organizational structures, employee roles, and compensation practices that may be valuable for further attacks.