[FD] CWE-80 XSS Bose Soundtouch App

[ProSec <info@xxxxxxxxxxxxxxxxxxx>]

Hi guys,

happy new year we would like to inform you about the following security issue.

CWE-80 XSS Bose Soundtouch App 

Internal reference: - 
Vulnerability type: Cross-Site Scripting (CWE-80)
Vulnerable version: 18.1.4 and maybe older versions, too (not tested)
Vulnerable component: IOS Frontend of the application 
Report confidence: Unconfirmed
Solution status: Could be fixed by vendor?
Fixed version: - 
Vendor notification: 2018-06-21
Solution date: ? 
CVE reference: CVE-2018-12638
CVSSv3: Calculator:  4.3 AV:P/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N 
<https://nvd.nist.gov/vuln-metrics/cvss/v3-calculator?vector=AV:P/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N/CR:X/IR:X/AR:X/MAV:N/MAC:X/MPR:N/MUI:R/MS:U/MC:H/MI:N/MA:N>
 
Researcher Credits: Tim Schughart

Vulnerability Details:
The smartphone name isn’t filtered properly and is reflected unfiltered to
 the app. This results in an cross site scritping, if you just connect to the 
Bose box via the app. 

Risk:
Malicious javascript code can be executed within a users context. This can lead 
to session hijacking or triggering unwanted actions via the interface. 

Steps to reproduce:
Just name your iOS device in „<script>alert(1)</script>“ and pair your box with 
your smartphone via the app. Many popups will occur. 

Solution:
You should filter the input (the name of connected device)


An issue was discovered in the Bose Soundtouch app 18.1.4 for iOS.
There is no frontend input validation of the device name. A malicious
device name can execute JavaScript on the
registered Bose User Account if a speaker has been connected to the app.

History:
2018-07-17 Informed Vendor about the Security Issue
2019-01-02 No response from vendor
2019-01-02 Public release


Best regards / Mit freundlichen Grüßen 

Chris Hein
Penetrationtester

--
ProSec GmbH
Robert-Koch-Straße 1-9
56751 Polch 

Website: https://www.prosec-networks.com 
E-Mail: c.hein@xxxxxxxxxxxxxxxxxxx 
Phone: +49 (0)261 450 930 90

Sitz der Gesellschaft / company domiciled in: Polch
Registergericht / registry court: Amtsgericht Koblenz, HRB 26457
Geschäftsführer / chief executive: Tim Schughart
USt-IdNr./ VAT ID: DE290654714

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