cve/2017/CVE-2017-8449.md

### [CVE-2017-8449](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-8449)
![](https://img.shields.io/static/v1?label=Product&message=Elastic%20X-Pack%20Security&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Vulnerability&message=CWE-732%3A%20Incorrect%20Permission%20Assignment%20for%20Critical%20Resource&color=brighgreen)

### Description

X-Pack Security 5.2.x would allow access to more fields than the user should have seen if the field level security rules used a mix of grant and exclude rules when merging multiple rules with field level security rules for the same index.

### POC

#### Reference
- https://www.elastic.co/community/security

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