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Advisory ID: SYSS-2016-061
Product: PERIDUO-710W
Manufacturer: Perixx Computer GmbH
Affected Version(s): Part No. KG-1027
Tested Version(s): Part No. KG-1027
Vulnerability Type: Insufficient Verification of Data Authenticity (CWE-345)
                    Mouse Spoofing Attack
Risk Level: Medium
Solution Status: Open
Manufacturer Notification: 2016-06-28
Solution Date: -
Public Disclosure: 2016-09-30
CVE Reference: Not yet assigned
Authors of Advisory: Matthias Deeg and Gerhard Klostermeier (SySS GmbH)

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Overview:

PERIDUO-710W is a wireless desktop set consisting of a mouse and a
keyboard.

The manufacturer describes the product as follows (see [1]):

"PERIDUO can create flexible, convenient and wireless working
environment with its design. PERIDUO offers a reliable 2.4GHz high
frequency penetration, low interference, and omni-directional signal
transmissions with 10Meters meters [sic] receiving distance."

Due to unencrypted and unauthenticated mouse data communication, the
wireless desktop set PERIDUO-710W is prone to mouse spoofing attacks.

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Vulnerability Details:

The SySS GmbH found out that the mouse of the wireless desktop set
PERIDUO-710W is prone to spoofing attacks, as the mouse data
communication is unencrypted and unauthenticated.

An attacker can analyze the unencrypted mouse data packets of the 2.4
GHz radio communication sent by the mouse to the receiver (USB dongle)
in order to learn the used protocol. By knowing the used mouse data
protocol, it is possible to spoof mouse actions like mouse movements or
mouse clicks by sending forged data packets.

Thus, an attacker is able to remotely control the mouse pointer of a
target system that is operated with the wireless desktop set
PERIDUO-710W. If the graphical user interface of the victim's system
is unlocked, an attacker can for example send a list of mouse actions
that start the virtual on-screen keyboard of the operating system and
execute arbitrary commands in the context of the currently logged in
user, for instance a download and execute attack vector.

As the attacker may not have an unobstructed view to the target system's
screen and may not know the used operating system, the screen resolution,
or the current mouse settings, this kind mouse spoofing attack is based
on heuristics. But concerning an unlocked and unattended system, an
attacker can simply try different attack vectors for different target
system configurations sequentially.

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Proof of Concept (PoC):

The SySS GmbH could successfully perform mouse spoofing attacks against
a target system operated with the wireless desktop set PERIDUO-710W
using an in-house developed software tool in combination with the USB
radio dongle Crazyradio PA (see [3]).

A proof-of-concept mouse spoofing attack resulting in remote code
execution using the SySS software tool Radioactive Mouse is demonstrated
in a video (see [4]).

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Solution:

The SySS GmbH is not aware of a solution for this reported security
vulnerability.

For further information please contact the manufacturer.

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Disclosure Timeline:

2016-06-28: Vulnerability reported to manufacturer
2016-09-30: Public release of the security advisory

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References:

[1] User manual for Perixx PERIDUO-710W
    http://perixx.com/en/service/Perixx_Manual/DUO/PERIDUO-710_manual.pdf
[2] Product website for Perixx PERIDUO-710W
    http://perixx.com/en/products/perixx-pro-11.html
[3] Product website for Crazyradio PA
    https://www.bitcraze.io/crazyradio-pa/
[4] SySS Proof-of-Concept Mouse Spoofing Attack Video
    https://www.youtube.com/watch?v=PkR8EODee44
[5] SySS Security Advisory SYSS-2016-061

https://www.syss.de/fileadmin/dokumente/Publikationen/Advisories/SYSS-2016-061.txt
[6] SySS Responsible Disclosure Policy
    https://www.syss.de/en/responsible-disclosure-policy/

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Credits:

This security vulnerability was found by Matthias Deeg and Gerhard
Klostermeier of the SySS GmbH.

E-Mail: matthias.deeg (at) syss.de
Public Key:
https://www.syss.de/fileadmin/dokumente/Materialien/PGPKeys/Matthias_Deeg.asc
Key fingerprint = D1F0 A035 F06C E675 CDB9 0514 D9A4 BF6A 34AD 4DAB

E-Mail: gerhard.klostermeier (at) syss.de
Public Key:
https://www.syss.de/fileadmin/dokumente/PGPKeys/Gerhard_Klostermeier.asc
Key fingerprint = 8A9E 75CC D510 4FF6 8DB5 CC30 3802 3AAB 573E B2E7

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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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