CVE-2024-33894

HIGH

Ewon Cosy+ Firmware 21.x < 21.2s10 and 22.x < 22.1s3 - Insecure Permission Assignment

Title source: llm

Description

Insecure Permission vulnerability in Cosy+ devices running a firmware 21.x below 21.2s10 or a firmware 22.x below 22.1s3 are executing several processes with elevated privileges.

References (5)

Core 5

Core References

Vendor Advisory

https://www.hms-networks.com/cyber-security

Exploit, Mailing List

http://seclists.org/fulldisclosure/2024/Aug/23

Exploit, Third Party Advisory

https://blog.syss.com/posts/hacking-a-secure-industrial-remote-access-gateway/

Vendor Advisory

https://hmsnetworks.blob.core.windows.net/nlw/docs/default-source/products/cybersecurity/security-advisory/hms-security-advisory-2024-07-29-001--ewon-several-cosy--vulnerabilities.pdf

Product

https://www.ewon.biz/products/cosy/ewon-cosy-wifi

Scores

CVSS v3 8.8

EPSS 0.0085

EPSS Percentile 53.3%

Attack Vector NETWORK

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

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact total

Details

CWE

CWE-269

Status published

Products (1)

hms-networks/ewon_cosy\+_firmware 21.0s0 - 21.2s10

Published Aug 02, 2024

Tracked Since Feb 18, 2026