cve/2023/CVE-2023-6787.md

### [CVE-2023-6787](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-6787)
![](https://img.shields.io/static/v1?label=Product&message=Red%20Hat%20Single%20Sign-On%207&color=blue)
![](https://img.shields.io/static/v1?label=Product&message=Red%20Hat%20build%20of%20Keycloak%2022&color=blue)
![](https://img.shields.io/static/v1?label=Product&message=Red%20Hat%20build%20of%20Keycloak%2022.0.10&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Vulnerability&message=Improper%20Authentication&color=brighgreen)

### Description

A flaw was found in Keycloak that occurs from an error in the re-authentication mechanism within org.keycloak.authentication. This flaw allows hijacking an active Keycloak session by triggering a new authentication process with the query parameter "prompt=login," prompting the user to re-enter their credentials. If the user cancels this re-authentication by selecting "Restart login," an account takeover may occur, as the new session, with a different SUB, will possess the same SID as the previous session.

### POC

#### Reference
No PoCs from references.

#### Github
- https://github.com/fkie-cad/nvd-json-data-feeds