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High severity · published Jun 1, 2023
CVE-2023-28399
Incorrect permission assignment for critical resource exists in CONPROSYS HMI System (CHS) versions prior to 3.5.3
7.8
CVSS
0.2%
EPSS
No
On KEV
Description
Incorrect permission assignment for critical resource exists in CONPROSYS HMI System (CHS) versions prior to 3.5.3. ACL (Access Control List) is not appropriately set to the local folder where the affected product is installed, therefore a wide range of privileges is permitted to a user of the PC where the affected product is installed. As a result, the user may be able to destroy the system and/or execute a malicious program.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 8% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
CH
Conprosys Hmi System · Contec
before 3.5.3 · source: NVD
Affected product
CH
Conprosys Hmi System
Contec
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-28399
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-28399
Third Party Advisory
https://jvn.jp/en/vu/JVNVU93372935/
Vendor Advisory
https://www.contec.com/api/downloadlogger?download=/-/media/Contec/jp/support/security-info/contec_security_chs_230531_en.pdf
Vendor Advisory
https://www.contec.com/jp/api/downloadlogger?download=/-/media/Contec/jp/support/security-info/contec_security_chs_230531_jp.pdf
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