9.8
CRITICAL
CVE-2020-35757
Libre Wireless LS9 Unauthenticated Root ADB Access Over TCP
Description

An issue was discovered on Libre Wireless LS9 LS1.5/p7040 devices. There is Unauthenticated Root ADB Access Over TCP. The LS9 web interface provides functionality to access ADB over TCP. This is not enabled by default, but can be enabled by sending a crafted request to a web management interface endpoint. Requests made to this endpoint do not require authentication. As such, any unauthenticated user who is able to access the web interface will be able to gain root privileges on the LS9 module.

INFO

Published Date :

May 3, 2021, 9:15 p.m.

Last Modified :

Nov. 21, 2024, 5:28 a.m.

Remotely Exploitable :

Yes !

Impact Score :

5.9

Exploitability Score :

3.9
Affected Products

The following products are affected by CVE-2020-35757 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Librewireless ls9_firmware
2 Librewireless ls9
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2020-35757.

URL Resource
https://www.iot-inspector.com/blog/advisory-multiple-issues-libre-wireless-ls9/ Exploit Third Party Advisory
https://www.iot-inspector.com/blog/advisory-multiple-issues-libre-wireless-ls9/ Exploit Third Party Advisory

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2020-35757 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2020-35757 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference https://www.iot-inspector.com/blog/advisory-multiple-issues-libre-wireless-ls9/
  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • CWE Remap by [email protected]

    Jul. 12, 2022

    Action Type Old Value New Value
    Changed CWE CWE-269 CWE-306
  • Initial Analysis by [email protected]

    May. 19, 2021

    Action Type Old Value New Value
    Added CVSS V2 NIST (AV:N/AC:M/Au:N/C:C/I:C/A:C)
    Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    Changed Reference Type https://www.iot-inspector.com/blog/advisory-multiple-issues-libre-wireless-ls9/ No Types Assigned https://www.iot-inspector.com/blog/advisory-multiple-issues-libre-wireless-ls9/ Exploit, Third Party Advisory
    Added CWE NIST CWE-269
    Added CPE Configuration AND OR *cpe:2.3:o:librewireless:ls9_firmware:7040:*:*:*:*:*:*:* OR cpe:2.3:h:librewireless:ls9:-:*:*:*:*:*:*:*
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2020-35757 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

2.20 }} 1.11%

score

0.82924

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
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Scope
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Latest DB Update: Jul. 14, 2025 20:50