### [CVE-2017-16687](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-16687)
![](https://img.shields.io/static/v1?label=Product&message=SAP%20HANA%20extended%20application%20services&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=SAP%20HANA%20Database%201.00%2C%202.00%20&color=brightgreen)
![](https://img.shields.io/static/v1?label=Vulnerability&message=Information%20Disclosure&color=brightgreen)

### Description

The user self-service tools of SAP HANA extended application services, classic user self-service, a part of SAP HANA Database versions 1.00 and 2.00, can be misused to enumerate valid and invalid user accounts. An unauthenticated user could use the error messages to determine if a given username is valid.

### POC

#### Reference
- https://blogs.sap.com/2017/12/12/sap-security-patch-day-december-2017/

#### Github
No PoCs found on GitHub currently.