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HDX - Improper Neutralization of Special Elements used in a Command ('Command Injection')

Vulnerability Summary

The Poly HDX is susceptible to a command injection vulnerability which allows an authenticated malicious user to execute arbitrary commands on the system when using the firmware update functionality. Poly made changes to the HDX systems starting with the commercial software build to prevent this vulnerability. Input validation was improved so that commands are no longer processed as instructions and the software update will be aborted.


Last Update: 3/4/2022
Initial Public Release: 3/13/2013
Advisory ID:  PLYTV13-05

Products Affected
HDX 4000

Prior to and above
HDX 6000
Prior to and above
HDX 7000
Prior to and above
HDX 8000
Prior to and above
HDX 9000
Prior to and above

Poly recommends customers upgrade to firmware build or later.



For customers who cannot upgrade to a fixed version, administrators can:

  • Disable the web interface on the HDX
  • Use the Whitelist option to limit connections to the web management interface to certain, approved IP addresses.

Please consult the HDX Administrator’s Guide for information and instructions on these options.


Any customer using an affected system who is concerned about this vulnerability within their deployment should contact Poly Technical Support(888) 248-4143, (916) 928-7561, or visit the Poly Support Site.



Poly would like to thank Jon Doe from Research Lab for reporting security vulnerabilities to us and for their coordinated disclosure.

Revision History
1.0 3/13/2013
Initial Release
2.0 3/4/2022 Format Changes

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