CVE-2023-43700Network attack vector

Unauthenticated data modification via unchecked HTTP requests

Published Oct 9, 2023 · Updated Sep 19, 2024

Missing authorization in RDT400 on SICK APU0200 before 4.0.0.6 allows remote attackers to modify data through HTTP requests. The RDT400 HTTP interface processes data-changing requests without authentication or an authorization check on the requested operation. Network access to the appliance is required; published material does not identify the affected endpoints or bound the modified data.

CVSS severity7.5
High
EPSS probability0.63%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing authorization in RDT400 on SICK APU0200 before 4.0.0.6 allows remote attackers to modify data through HTTP requests. The RDT400 HTTP interface processes data-changing requests without authentication or an authorization check on the requested operation. Network access to the appliance is required; published material does not identify the affected endpoints or bound the modified data.

The record

CVE
CVE-2023-43700
Published
Oct 9, 2023
Updated
Sep 19, 2024
Vendor
SICK AG
Product
RDT400 Remote Diagnostic Tool
Classifications
CWE-862, T1565
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 9, 2023CVE publishedPublication date reported by the CVE source.
  2. Sep 19, 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?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=*

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

SICK AG · RDT400 Remote Diagnostic Toolversion=0 <=*
SICK AG · APU0200version=all versions

Published CVSS scores

7.7SICK AGCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:H
7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-862Missing Authorization
T1565Data Manipulation

Public exploit references

No public exploit references are available in this record.

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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