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Barco ClickShare XSS / Remote Code Execution / Path Traversal

Barco ClickShare XSS / Remote Code Execution / Path Traversal
Posted Nov 14, 2016
Authored by Vincent Ruijter

Barco ClickShare suffers from remote code execution, cross site scripting, path traversal, and file disclosure vulnerabilities.

tags | advisory, remote, vulnerability, code execution, xss, file inclusion
advisories | CVE-2016-3149, CVE-2016-3150, CVE-2016-3151, CVE-2016-3152
MD5 | 1d7938eea6afae957119665c90e9c8b9

Barco ClickShare XSS / Remote Code Execution / Path Traversal

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CVE-2016-3149 - Remote Code Execution in Barco ClickShare CSC-1 and CSM-1
Affected versions: all versions prior to v01.09.03 (CSC-1) and v01.06.02 (CSM-1).
A remote code execution vulnerability exists within the Barco ClickShare base unit software, that could lead to full compromise of the appliance.

CVE-2016-3150 - Cross-site Scripting in Barco ClickShare CSC-1, CSM-1 and CSE-200
Affected versions: all versions prior to v01.09.03 (CSC-1), v01.06.02 (CSM-1) and v01.03.02 (CSE-200)
A Cross-Site Scripting vulnerability exists within Barco ClickShare's CSC-1 base unit's wallpaper.php due to invalid input and output sanitisation.

CVE-2016-3151 - Path Traversal in Barco ClickShare CSC-1, CSM-1 and CSE-200
Affected versions: all versions prior to v01.09.03 (CSC-1), v01.06.02 (CSM-1) and v01.03.02 (CSE-200).
A Path Traversal vulnerability exists within Barco ClickShare's wallpaper parsing functionality, which leads to disclosure of the /etc/shadow file on the file system.

CVE-2016-3152 - /etc/shadow file disclosure in the CSC-1 firmware update
Affected versions: all versions prior to v01.09.03 (CSC-1)
It is possible to download and extract the firmware image of the CSC-1 and obtain the root password.

The vendor has acknowledged and patched the aforementioned issues. It is recommended to download and apply the most recent firmware update for your appliance.

References:
http://www.barco.com/en/mybarco/mysupport/documentation/software/software-detail?nr=R33050020&rev=001002000009
http://www.barco.com/en/mybarco/mysupport/productsupport/software/software-detail?nr=R33050037&rev=001001000113
https://www.barco.com/en/mybarco/mysupport/productsupport/software/software-detail?nr=R33050070&rev=001001000008

--

Regards,

Vincent Ruijter
Ethical Hacker
Chief Information Security Office
KPN B.V.


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