The SAP HANA Node.js client package versions from 2.0.0 before 2.21.31 is impacted by Prototype Pollution vulnerability allowing an attacker to add arbitrary properties to global object prototypes. This is due to improper user input sanitation when using the nestTables feature causing low impact on the availability of the application. This has no impact on Confidentiality and Integrity.
The product receives input from an upstream component that specifies attributes that are to be initialized or updated in an object, but it does not properly control modifications of attributes of the object prototype.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Hana-client | Sap | 2.0.0 (including) | 2.21.31 (excluding) |
By adding or modifying attributes of an object prototype, it is possible to create attributes that exist on every object, or replace critical attributes with malicious ones. This can be problematic if the product depends on existence or non-existence of certain attributes, or uses pre-defined attributes of object prototype (such as hasOwnProperty, toString or valueOf). This weakness is usually exploited by using a special attribute of objects called proto, constructor or prototype. Such attributes give access to the object prototype. This weakness is often found in code that assigns object attributes based on user input, or merges or clones objects recursively.