Vulnerability Note VU#751328
QNAP QTS is vulnerable to a path traversal attack when used with the AFP protocol and OS X
Original Release date: 12 Oct 2015 | Last revised: 13 Oct 2015
QNAP QTS is a Network-Attached Storage (NAS) system. The QNAP QTS is vulnerable to a path traversal attack when used with the AFP protocol and OS X.
CWE-23: Relative Path Traversal – CVE-2015-6003
When the Apple Filing Protocol (AFP) is enabled, any OS X user account (including the unauthenticated guest account) may be able to read and write arbitrary files on the QNAP QTS device.
According to documentation, AFP is disabled by default on the device, so only users specifically enabling this service are impacted.
According to the reporter, the TS-420 with firmware version prior to 4.1.4 Build 0910 is vulnerable. It is likely that all devices running firmware version 4.1.4 are affected; previous firmware versions may also be affected.
For more information, please see QNAP’s security advisory.
An unauthenticated remote user may be able to read and write arbitrary files on the device.
Update the firmware
QNAP has released firmware version QTS 4.1.4 Build 0910 and QTS 4.2.0 Build 0910(RC2) to address this issue. Affected users are encouraged to update as soon as possible.
Vendor Information (Learn More)
VendorStatusDate NotifiedDate UpdatedQNAPAffected28 Aug 201513 Oct 2015If you are a vendor and your product is affected, let
CVSS Metrics (Learn More)
Thanks to Marcin Ochab for reporting this vulnerability.
This document was written by Garret Wassermann.
12 Oct 2015
Date First Published:
12 Oct 2015
Date Last Updated:
13 Oct 2015
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