High severity · published Jun 1, 2023
CVE-2023-28657
Improper access control vulnerability exists in CONPROSYS HMI System (CHS) versions prior to 3.5.3
8.8
CVSS
0.7%
EPSS
No
On KEV
Description
Improper access control vulnerability exists in CONPROSYS HMI System (CHS) versions prior to 3.5.3. A user of the PC where the affected product is installed may gain an administrative privilege. As a result, information regarding the product may be obtained and/or altered by the user.
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)0.7% · higher than 53% 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
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-28657
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-28657
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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