Saturday, January 18, 2020

[UHP Networks] Multiple Reflected XSS in UHP routers (CVE-2020-7235 - CVE-2020-7236)

UHP Networks] Multiple Reflected XSS in UHP routers

UHP Networks is a company dedicated to devolping, manufacturing and marketing of VSAT satellite networking equipment. Its main products include various UHP universal satellite routers, where the main application of these devices is broadband, SCADA and multimedia connectivity in large VSAT networks using HTS (High Throughput Satellite).



When searching for these devices in ZoomEye, I found several administration panels of the UHP-100 device, which in most cases was accessible without the need for credentials.

When accessing one of these devices, I noticed that it was possible to change any parameters of site, profiles, and network.

Reflected XSS #1


In the profiles section, the “Title” field caught my attention, which was the only one where I could enter data. So, I decided to try simple HTML payloads and javascript codes.


Before entering my payload in the field, I increased the maximum length, since it was not possible to enter more than 10 characters.



When the changes apply, the XSS was immediately triggered but I believed that this would happen by entering the profiles tab where you can see the title of all of them. Then, I reviewed the request that was sent, and I noticed that the data was sent by GET method to "http: // [IP] / cB3" interpreting them right there.


  Then I decided to go directly to the page where the data is sent, but this time I only used the “da” and “ta” parameters which correspond to the profile number and title. At the time of entering with these parameters, the XSS was once again successful.


Reflected XSS #2


I tried the same thing in the "Site name" field of the "Site setup" section, and the XSS was triggered as well.



Using these simple URLs, we can determine if our UHP device is vulnerable:

• XSS 1: http://[ IP ]/cw2?td=%22%3E%3Csvg%2Fonload%3Dalert(1)%3E
• XSS 2: http://[ IP ]/cB3?da=9&ta=%22%3E%3Csvg%2Fonload%3Dalert(1)%3E


Tested on:
Version 3.4.1.15 (03.10.2017)
Version 3.4.2.4 (26.01.2018)
Version 3.4.3 (18.07.2018)














CesarSilence

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