CVE-2020-35755 Information disclosure in n/a

High 7.5 Published Updated

Attackers can read sensitive NVRAM data, including cleartext Wi-Fi passwords and service tokens, via the luci_service daemon on port 7777.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2020-35755?

CVE-2020-35755 is a high-severity vulnerability in n/a, published on 3 May 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official 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.

Weakness: CWE-306

Which versions are affected by CVE-2020-35755?

It affects 1 product.

Products include Librewireless Ls9 Firmware.

How do I fix CVE-2020-35755?

No fix has been published for CVE-2020-35755 yet. Limit exposure of the affected software until one is available.

Is CVE-2020-35755 being exploited?

There is no known exploitation of CVE-2020-35755 in the wild and no public exploit code.

Sources

Also known as GHSA-mq75-jhcv-prqv.

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