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CVE-2020-35755

7.5 · HIGH

An issue was discovered on Libre Wireless LS9 LS1.5/p7040 devices.

Published May 3, 2021CWE-306EPSS 1.11%

Overview

CVE-2020-35755 is a high-severity vulnerability. It was published on May 3, 2021 and has a CVSS 3.1 base score of 7.5 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

An issue was discovered on Libre Wireless LS9 LS1.5/p7040 devices. There is a luci_service Read_ NVRAM Direct Access Information Leak. The luci_service deamon running on port 7777 provides a sub-category of commands for which Read_ is prepended. Commands in this category are able to directly read the contents of the device configuration NVRAM. The NVRAM contains sensitive information, such as the Wi-Fi password (in cleartext), as well as connected account tokens for services such as Spotify.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refwww.iot-inspector.com/blog/advisory-multiple-issues-libre-wireless-ls9/Refwww.iot-inspector.com/blog/advisory-multiple-issues-libre-wireless-ls9/

How CyberStrike helps

Frequently asked questions

What is CVE-2020-35755?

CVE-2020-35755 is a high-severity vulnerability. It was published on May 3, 2021 and has a CVSS 3.1 base score of 7.5 (HIGH).

How severe is CVE-2020-35755?

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2020-35755?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2020-35755?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2020-35755 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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