CVE-2020-9473

Severity: medium (CVSS 6.6 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.0% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2020-04-06 · updated 2026-06-17
Weakness: CWE-306

Description

The S. Siedle & Soehne SG 150-0 Smart Gateway before 1.2.4 has a passwordless ftp ssh user. By using an exploit chain, an attacker with access to the network can get root access on the gateway.

Affected products

Siedle Sg 150-0 Firmware: before 1.2.4 — fixed in 1.2.4

How to fix

Upgrade to a fixed version: Siedle Sg 150-0 Firmware 1.2.4. Check the vendor advisory for mitigations.

References

https://research.hisolutions.com/2020/04/open-the-gates-insecurity-of-cloudless-smart-door-systems/
https://research.hisolutions.com/2020/04/open-the-gates-insecurity-of-cloudless-smart-door-systems/

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