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Advisory ID: SYSS-2015-056
Product: Thru Managed File Transfer Portal
Manufacturer: Thru
Affected Version(s): 9.0.2
Tested Version(s): 9.0.2
Vulnerability Type: SQL Injection (CWE-89)
Risk Level: High
Solution Status: Open
Manufacturer Notification: 2015-10-28
Solution Date: 2016-01-22
Public Disclosure: 2016-02-15
CVE Reference: Not yet assigned
Authors of Advisory: Dr. Erlijn van Genuchten, Danny Österreicher
                     (SySS GmbH)

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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.

An SQL injection vulnerability was identified in one of the GET request.

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Vulnerability Details:

The SQL injection vulnerability was found in a GET request that causes
contact data to be sorted. At least the attribute values of sortorder
and  letterrange are not correctly sanitized and therefore can be abused
to  inject arbitrary SQL statements.

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Proof of Concept (PoC):

The following HTTP request can be used to show that the SQL statement
causing a delay is executed and results in a 500 server error:

GET /App/asp///contacts.asp?sortorder=1;WAITFOR+DELAY+'0:0:5'--&letterrange=all&fromrec=0&torec=20 HTTP/1.1
Host: [HOST]
Cookie: [COOKIES]

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Solution:

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

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Disclosure Timeline:

2015-10-27: Vulnerability discovered
2015-10-28: Vulnerability reported to manufacturer
2016-01-22: Manufacturer announced update
2016-02-15: Public release of security advisory

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References:

[1] Thru Homepage
    http://www.thruinc.com
[2] SySS Security Advisory SYSS-2015-056
    https://www.syss.de/fileadmin/dokumente/Publikationen/Advisories/SYSS-2015-056.txt
[3] SySS Responsible Disclosure Policy
    https://www.syss.de/en/news/responsible-disclosure-policy/

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Credits:

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

E-Mail: erlijn.vangenuchten@syss.de
Public Key: https://www.syss.de/fileadmin/dokumente/Materialien/PGPKeys/Erlijn_vanGenuchten.asc
Key ID: 0xBD96FF2A
Key Fingerprint: 17BB 4CED 755A CBB3 2D47 C563 0CA5 8637 BD96 FF2A

E-Mail: danny.oesterreicher@syss.de
Public Key: https://www.syss.de/fileadmin/dokumente/Materialien/PGPKeys/Danny_Oesterreicher.asc
Key ID: 0x96029AC7
Key Fingerprint: 0B53 8B52 9B5F 39C9 68F5 18C9 9284 FCEB 9602 9AC7

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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.

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Copyright:

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