### [CVE-2015-5352](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-5352)
![](https://img.shields.io/static/v1?label=Product&message=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=n%2Fa%20&color=brightgreen)
![](https://img.shields.io/static/v1?label=Vulnerability&message=n%2Fa&color=brightgreen)

### Description

The x11_open_helper function in channels.c in ssh in OpenSSH before 6.9, when ForwardX11Trusted mode is not used, lacks a check of the refusal deadline for X connections, which makes it easier for remote attackers to bypass intended access restrictions via a connection outside of the permitted time window.

### POC

#### Reference
- http://www.oracle.com/technetwork/topics/security/bulletinjan2016-2867206.html
- http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html
- https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf

#### Github
- https://github.com/Live-Hack-CVE/CVE-2015-5352
- https://github.com/Maribel0370/Nebula-io
- https://github.com/lekctut/sdb-hw-13-01
- https://github.com/pedr0alencar/vlab-metasploitable2
- https://github.com/vshaliii/DC-1-Vulnhub-Walkthrough
- https://github.com/vshaliii/DC-2-Vulnhub-Walkthrough