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Date: Thu, 22 Oct 2020 06:46:06 -0400
From: Kevin R <krandall2013@...il.com>
To: fulldisclosure@...lists.org
Subject: [FD] CVE-2020-24990 Q-SYS <= 8.2.1 TFTP Directory Traversal

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256

> [Suggested description]
> An issue was discovered in QSC Q-SYS Core Manager 8.2.1. By utilizing
> the TFTP service running on UDP port 69, a remote attacker can perform
> a directory traversal and obtain operating system files via a TFTP
> GET request, as demonstrated by reading /etc/passwd or /proc/version.
>
> ------------------------------------------
>
> [Vulnerability Type]
> Directory Traversal
>
> ------------------------------------------
>
> [Vendor of Product]
> QSC LLC
>
> ------------------------------------------
>
> [Affected Product Code Base]
> Q-SYS Core Manager - Version 8.2.1
>
> ------------------------------------------
>
> [Affected Component]
> TFTP Service running on UDP port 69 allows for retrieval of arbitrary
files through a TFTP GET request
>
> ------------------------------------------
>
> [Attack Type]
> Remote
>
> ------------------------------------------
>
> [Impact Information Disclosure]
> true
>
> ------------------------------------------
>
> [Attack Vectors]
> Remote while unauthenticated to the system
>
> ------------------------------------------
>
> [Reference]
> https://q-syshelp.qsc.com/Content/Core_Manager/CoreManager_Overview.htm
>
> ------------------------------------------
>
> [Discoverer]
> Kevin Randall

Use CVE-2020-24990.

- --
CVE Assignment Team
M/S M300, 202 Burlington Road, Bedford, MA 01730 USA
[ A PGP key is available for encrypted communications at
http://cve.mitre.org/cve/request_id.html ]
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-- 
Kevin Randall

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