Administrative controller access via hard-coded credentials
Published Jun 28, 2022 · Updated Aug 3, 2024
Hard-coded credentials in Yokogawa STARDOM FCN/FCJ R4.10 through R4.31 allow attackers to alter controller configuration. The dual-redundant FCN/FCJ CPU-module environment embeds credentials that grant administrative access instead of requiring unique secrets. Only dual-redundant CPU configurations are exposed; the credentials cannot access single-CPU controllers, but permit configuration reads and writes or tampered firmware installation.
Summary
What happened
Hard-coded credentials in Yokogawa STARDOM FCN/FCJ R4.10 through R4.31 allow attackers to alter controller configuration. The dual-redundant FCN/FCJ CPU-module environment embeds credentials that grant administrative access instead of requiring unique secrets. Only dual-redundant CPU configurations are exposed; the credentials cannot access single-CPU controllers, but permit configuration reads and writes or tampered firmware installation.
The record
- CVE
- CVE-2022-30997
- Published
- Jun 28, 2022
- Updated
- Aug 3, 2024
- Vendor
- Yokogawa Electric Corporation
- Product
- STARDOM FCN Firmware
- Classifications
- CWE-798, T0859
- Attack vector
- adjacent
- Privileges
- admin
Timeline
How it unfolded
- Jun 28, 2022CVE publishedPublication date reported by the CVE source.
- Aug 3, 2024Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=r4.10 <=r4.31
What conditions does exploitation require?
What is affected?
Published CVSS scores
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Attacks
What attackers are doing with it
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Public exploit references
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Technologies
Your stack
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Your stack
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