CVE-2020-9473Public exploitNetwork attack vector

Root access via passwordless SSH account

Published Apr 6, 2020 · Updated Aug 4, 2024

Missing authentication in S. Siedle & Soehne SG 150-0 Smart Gateway before 1.2.4 allows remote attackers to access its ftp SSH account. The firmware leaves the ftp system account without a password, enabling password assignment over SSH and tunneling to the internal MySQL service. Network access is required; the demonstrated chain uses a static database root password to create a web administrator who can reconfigure connected devices and open doors.

CVSS severity6.6
Medium
EPSS probability1.01%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing authentication in S. Siedle & Soehne SG 150-0 Smart Gateway before 1.2.4 allows remote attackers to access its ftp SSH account. The firmware leaves the ftp system account without a password, enabling password assignment over SSH and tunneling to the internal MySQL service. Network access is required; the demonstrated chain uses a static database root password to create a web administrator who can reconfigure connected devices and open doors.

The record

CVE
CVE-2020-9473
Published
Apr 6, 2020
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-306, T1078
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 6, 2020CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

8.5NIST NVDAV:N/AC:M/Au:S/C:C/I:C/A:C
6.6NIST NVDCVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-306Missing Authentication for Critical Function
T1078Valid Accounts

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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