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CVE-2015-5352

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