CVE-2023-22339

HIGH

CONPROSYS HMI System <3.4.5 - Auth Bypass

Title source: llm

Description

Improper access control vulnerability in CONPROSYS HMI System (CHS) Ver.3.4.5 and earlier allows a remote unauthenticated attacker to bypass access restriction and obtain the server certificate including the private key of the product.

References (4)

Core 4

Core References

Patch, Third Party Advisory

https://jvn.jp/en/vu/JVNVU96873821

Third Party Advisory, US Government Resource

https://www.cisa.gov/uscert/ics/advisories/icsa-22-347-03

Patch, Vendor Advisory

https://www.contec.com/api/downloadlogger?download=/-/media/Contec/jp/support/security-info/contec_security_chs_230110_en.pdf

Patch, Vendor Advisory

https://www.contec.com/download/contract/contract4/?itemid=ea8039aa-3434-4999-9ab6-897aa690210c&downloaditemid=866d7d3c-aae9-438d-87f3-17aa040df90b

Scores

CVSS v3 7.5

EPSS 0.0114

EPSS Percentile 62.5%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact partial

Details

CWE

CWE-284

Status published

Products (1)

contec/conprosys_hmi_system < 3.4.5

Published Jan 20, 2023

Tracked Since Feb 18, 2026