PT-2021-13784 · Telus · Telus Wi-Fi Hub

Evan Grant · Published 2021-10-11 · Updated 2021-10-18 · CVE-2021-20121

Positive Technologies (AI Summary)

CVSS v3.1

4.0

Medium

Base vector

AV:P/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N

Name of the Vulnerable Software and Affected Versions: Telus Wi-Fi Hub (PRV65B444A-S-TS) version 3.00.20

Description: The issue allows an authenticated user with physical access to the device to read arbitrary files from the device. This can be achieved by preparing and connecting a specially prepared USB drive to the device and making a series of crafted requests to the device's web interface.

Recommendations: For Telus Wi-Fi Hub (PRV65B444A-S-TS) version 3.00.20, consider restricting physical access to the device and limiting the ability to connect USB drives until a patch is available. As a temporary workaround, avoid using the device's web interface to make crafted requests that could exploit this issue. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Related Identifiers

CVE-2021-20121

Affected Products

Telus Wi-Fi Hub

References · 4

• 🔥 https://tenable.com/security/research/tra-2021-41 · Exploit
• https://osv.dev/vulnerability/CVE-2021-20121 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-20121 · Security Note
• https://t.me/cibsecurity/30351 · Telegram Post