High severity · published Aug 2, 2024
CVE-2024-33894
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
8.8
CVSS
0.8%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.8% · higher than 58% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
EC
Ewon Cosy+ Firmware · Hms-networks
21.0s0 before 21.2s10; 22.0s0 before 22.1s3 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2024-33894
CVE.org
https://www.cve.org/CVERecord?id=CVE-2024-33894
Exploit
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
Vendor Advisory
https://www.hms-networks.com/cyber-security
Exploit
http://seclists.org/fulldisclosure/2024/Aug/23
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7.2
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6.1
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Cosy+ devices running a firmware 21.x below 21.2s10 or a firmware 22.x below 22.1s3 are vulnerable to XSS when displaying the logs due to improper input sanitization