Vulnerability Note VU#857948
Honeywell Tuxedo Touch Controller contains multiple vulnerabilities
Original Release date: 24 Jul 2015 | Last revised: 24 Jul 2015

Overview
All versions of Honeywell Tuxedo Touch Controller are vulnerable to authentication bypass and cross-site request forgery (CSRF).

Description
CWE-603: Use of Client-Side Authentication – CVE-2015-2847
The Honeywell Tuxedo Touch Controller web interface uses JavaScript to check for client authentication and redirect unauthorized users to a login page. By intercepting and dropping requests containing the string USERACCT=USERNAME:_,PASSWORD:_, an unauthenticated user may bypass authentication and access restricted pages.

CWE-353: Cross-Site Request Forgery (CSRF) – CVE-2015-2848

Honeywell Tuxedo Touch Controller contains a global cross-site request forgery (CSRF) vulnerability. An attacker can perform actions with the same permissions as a victim user, provided the victim has an active session and is induced to trigger the malicious request. Note that these actions may include issuing commands to home automation devices controlled by the Tuxedo Touch Controller, such as unlocking or locking doors.

The CVSS score reflects CVE-2015-2848.

Impact
A remote, unauthenticated attacker may be able to bypass authentication checks to view restricted pages, or trick an authenticated user into making an unintentional request to the web server which will be treated as an authentic request. Compromised Tuxedo Touch Controllers may be leveraged to operate home automation devices, such as unlocking or locking doors.

Solution
Apply an update

Honeywell has released firmware version TUXW_V5.2.19.0_VA to address these vulnerabilities. Since all prior firmware versions are affected, users are strongly encouraged to update their devices.

Vendor Information (Learn More)

VendorStatusDate NotifiedDate UpdatedHoneywellAffected15 May 201516 Jun 2015If you are a vendor and your product is affected, let
us know.

CVSS Metrics (Learn More)

Group
Score
Vector

Base
6.8
AV:N/AC:M/Au:N/C:P/I:P/A:P

Temporal
5.3
E:POC/RL:OF/RC:C

Environmental
1.8
CDP:LM/TD:L/CR:ND/IR:H/AR:ND

References

http://www.tuxedotouchtoolkit.com/software-downloads/tuxedo-touch/index.html
http://www.tuxedotouchtoolkit.com/
https://cwe.mitre.org/data/definitions/603.html
https://cwe.mitre.org/data/definitions/352.html

Credit

Thanks to Maxim Rupp for reporting this vulnerability.
This document was written by Joel Land.

Other Information

CVE IDs:
CVE-2015-2847
CVE-2015-2848

Date Public:
24 Jul 2015

Date First Published:
24 Jul 2015

Date Last Updated:
24 Jul 2015

Document Revision:
17

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