OData MERGE bypasses read-only fields in Bank Statement Draft
CVE-2024-45282 Published on October 8, 2024
HTTP Verb Tampering in SAP S/4 HANA(Manage Bank Statements)
Fields which are in 'read only' state in Bank Statement Draft in Manage Bank Statements application, could be modified by MERGE method. The property of an OData entity representing assumably immutable method is not protected against external modifications leading to integrity violations. Confidentiality and Availability are not impacted.
Vulnerability Analysis
CVE-2024-45282 is exploitable with network access, and requires small amount of user privileges. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality, with no impact on integrity, and no impact on availability.
Weakness Type
Trusting HTTP Permission Methods on the Server Side
The server contains a protection mechanism that assumes that any URI that is accessed using HTTP GET will not cause a state change to the associated resource. This might allow attackers to bypass intended access restrictions and conduct resource modification and deletion attacks, since some applications allow GET to modify state. The HTTP GET method and some other methods are designed to retrieve resources and not to alter the state of the application or resources on the server side. Furthermore, the HTTP specification requires that GET requests (and other requests) should not have side effects. Believing that it will be enough to prevent unintended resource alterations, an application may disallow the HTTP requests to perform DELETE, PUT and POST operations on the resource representation. However, there is nothing in the HTTP protocol itself that actually prevents the HTTP GET method from performing more than just query of the data. Developers can easily code programs that accept a HTTP GET request that do in fact create, update or delete data on the server. For instance, it is a common practice with REST based Web Services to have HTTP GET requests modifying resources on the server side. However, whenever that happens, the access control needs to be properly enforced in the application. No assumptions should be made that only HTTP DELETE, PUT, POST, and other methods have the power to alter the representation of the resource being accessed in the request.
Products Associated with CVE-2024-45282
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Affected Versions
SAP_SE SAP S/4 HANA (Manage Bank Statements):- Version S4CORE is affected.
- Version 102 is affected.
- Version 103 is affected.
- Version 104 is affected.
- Version 105 is affected.
- Version 106 is affected.
- Version 107 is affected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.