Vulnerability Summary
Polycom HDX endpoints that are running software versions older than 3.1.13 contain security vulnerabilities that have been previously listed on the Polycom Security Center. These security vulnerabilities may render HDX endpoints vulnerable to takeover by a botnet.
A botnet is a network of computer systems that have been infected with malicious software and controlled as a group without the systems owners’ knowledge. Currently Polycom HDX endpoints can be affected by Yowai, Hades and Bushido Botnets.
Published
Last Update: 3/7/2022
Initial Public Release: 2/20/2019
Advisory ID: PLYTV19-02
Product Affected
| PRODUCTS | FIRMWARE | FIX |
|---|---|---|
| HDX 4000 | Prior to 3.1.13 | 3.1.13 and above |
| HDX 6000 | Prior to 3.1.13 |
3.1.13 and above |
| HDX 7000 | Prior to 3.1.13 |
3.1.13 and above |
| HDX 8000 | Prior to 3.1.13 |
3.1.13 and above |
| HDX 9000 | Prior to 3.1.13 |
3.1.13 and above |
Solution
Update HDX endpoints to software version 3.1.13, which fixes known vulnerabilities and protects against botnets and other infections. You can download version 3.1.13 from Poly Support.
To determine if an HDX is infected with a botnet, or has been exploited by known vulnerabilities in older versions of HDX software, perform the following steps:
- Login to the HDX web UI
- Go to the “diagnostics” tab
- Click on “download logs”
- Click on “download support information package”
- Your browser will download a file named “polycom_info...tgz”.
- Uncompress this file, this will result in several files whose names start with “messages”
- Examine these files for the occurrence of this string: ${IFS} (without spaces)
If ${IFS} appears in any log files, the HDX has been exploited by a known vulnerability in old HDX software, and the HDX should be factory reset and updated to 3.1.13 as soon as possible.
Workaround
Poly recommends keeping the HDX endpoint’s software up to date.
In addition, Poly recommends following standard best practices for Unified Communications, as detailed in our best practices paper.
Contact
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.
RECOGNITION
Poly would like to thank WootCloud for reporting security vulnerabilities to us and for their coordinated disclosure.
Revision History
| VERSION | DATE | DESCRIPTION |
|---|---|---|
| 1.0 | 2/20/2019 | Initial Release |
| 2.0 | 3/7/2022 | Format Changes |