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OpenSSH bypass timeout checks and XSECURITY restrictions (CVE-2015-5352)


Oct 10, 2023

Summary

An access restriction bypass vulnerability in OpenSSH allows remote attackers to evade X11 forwarding connection deadlines.

Vulnerability ID Vulnerability Overview
CVE-2015-5352 The x11_open_helper function in OpenSSH (before version 6.9) does not properly check the refusal deadline for X connections when ForwardX11Trusted mode is disabled. This vulnerability makes it easier for a compromised or malicious remote X application to bypass intended access restrictions and establish a connection to the local X server outside of the permitted time window.


Affected Supported TeraStations

None

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Date Description
10/10/2023 Initial release


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