SARA / Free Tools / CVE / CVE-2023-27396

CVE-2023-27396 — FINS (Factory Interface Network Service) is a message communication protocol, wh

FINS (Factory Interface Network Service) is a message communication protocol, which is designed to be used in closed FA (Factory Automation) networks, and is used in FA networks composed of OMRON products. Multiple OMRON products that implement FINS protocol contain following sec

CVSS
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EPSS
1.83% (top 17.30%)
CWE
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Published
2023-06-19T00:00:00.000Z
Last modified
2024-12-24T16:45:20.428Z
CVSS vector
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01What is this vulnerability?

FINS (Factory Interface Network Service) is a message communication protocol, which is designed to be used in closed FA (Factory Automation) networks, and is used in FA networks composed of OMRON products. Multiple OMRON products that implement FINS protocol contain following security issues -- (1)Plaintext communication, and (2)No authentication required. When FINS messages are intercepted, the…

02Affected products

VendorProductVersions
OMRON CorporationMultiple OMRON products which implement FINS protocolSYSMAC CS-series CPU Units all versions, SYSMAC CJ-series CPU Units all versions, SYSMAC CP-series CPU Units all versions, SYSMAC NJ-series CPU Units all versions, SYSMAC NX1P-series CPU Units all versions, SYSMAC NX102-series CPU Units all versions, and SYSMAC NX7 Database Connection CPU Units Ver.1.16 or later

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

09References

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