BugTraq
[SYSS-2015-060] Thru Managed File Transfer Portal 9.0.2 - Improperly Implemented Security Check for Standard (REVISED) Mar 04 2016 11:02AM
erlijn vangenuchten syss de
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Advisory ID: SYSS-2015-060
Product: Thru Managed File Transfer Portal
Manufacturer: Thru
Affected Version(s): 9.0.2
Tested Version(s): 9.0.2
Vulnerability Type: Improperly Implemented Security Check for Standard
(CWE-358)
Risk Level: Medium
Solution Status: Fixed
Manufacturer Notification: 2015-10-28
Solution Date: 2016-01-22
Public Disclosure: 2016-02-15
CVE Reference: Not yet assigned
Author of Advisory: Dr. Erlijn van Genuchten (SySS GmbH)

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Overview:

Thru Managed File Transfer Portal is a web based file transfer application.
According to the Thru website [1], the application aims to offload large
file transfer to a single platform, to protect files, to replace FTP
servers and to allow access to files anytime, anywhere.

The Thru Managed File Transfer application allows both unauthenticated
and authenticated users to upload files, including viruses.

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Vulnerability Details:

The SySS GmbH identified that the application promises users that "all
files are automatically scanned for viruses." However, it was possible
to upload and download the EICAR test virus, which is recognised by all
virus scanners.

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Proof of Concept (PoC):

The EICAR test virus was uploaded using the upload functionality. The
upload was successful both as unauthorized and authorized user.

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Solution:

The reported security vulnerability has been fixed in a new software
release. Update to the new software version.

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Disclosure Timeline:

2015-10-26: Vulnerability discovered
2015-10-28: Vulnerability reported to manufacturer
2016-01-22: Manufacturer announced update
2016-02-15: Public release of security advisory
2016-03-02: Public release of revised security advisory (corrected
solution status)

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

References:

[1] Thru Homepage
http://www.thruinc.com
[2] SySS Security Advisory SYSS-2015-060
https://www.syss.de/fileadmin/dokumente/Publikationen/Advisories/SYSS-20
15-060.txt
[3] SySS Responsible Disclosure Policy
https://www.syss.de/en/news/responsible-disclosure-policy/

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Credits:

This security vulnerability was found by Dr. Erlijn van Genuchten of the
SySS GmbH.

E-Mail: erlijn.vangenuchten (at) syss (dot) de [email concealed]
Public Key: https://www.syss.de/fileadmin/dokumente/Materialien/PGPKeys/Erlijn_vanGe
nuchten.asc
Key ID: 0xBD96FF2A
Key Fingerprint: 17BB 4CED 755A CBB3 2D47 C563 0CA5 8637 BD96 FF2A

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Disclaimer:

The information provided in this security advisory is provided "as is"
and without warranty of any kind. Details of this security advisory may
be updated in order to provide as accurate information as possible. The
latest version of this security advisory is available on the SySS Web
site.

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Copyright:

Creative Commons - Attribution (by) - Version 3.0
URL: http://creativecommons.org/licenses/by/3.0/deed.en
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