CVE-2020-28946

Severity: high (CVSS 7.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.2% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2020-12-08 · updated 2026-06-17
Weakness: CWE-306

Description

An improper webserver configuration on Plum IK-401 devices with firmware before 1.02 allows an attacker (with network access to the device) to obtain the configuration file, including hashed credential data. Successful exploitation could allow access to hashed credential data with a single unauthenticated GET request.

Affected products

Plummac Ik-401 Firmware: before 1.02 — fixed in 1.02

How to fix

Upgrade to a fixed version: Plummac Ik-401 Firmware 1.02. Check the vendor advisory for mitigations.

References

https://plummac.com/project/ik-401/
https://www.cert.pl/news/single/coraz-wiecej-urzadzen-przemyslowych-podlaczonych-do-internetu/
https://plummac.com/project/ik-401/
https://www.cert.pl/news/single/coraz-wiecej-urzadzen-przemyslowych-podlaczonych-do-internetu/

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