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[Japanese]
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JVNDB-2021-000014
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Calsos CSDJ fails to restrict access permissions
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Calsos CSDJ provided by NEC Platforms, Ltd. fails to restrict access permissions (CWE-264), which may lead to an unauthorized user being able to view the historical data without access privileges.
Takayuki Sasaki and Katsunari Yoshioka of Yokohama National University reported this vulnerability to IPA.
JPCERT/CC coordinated with the developer under Information Security Early Warning Partnership.
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CVSS V3 Severity:
Base Metrics 4.3 (Medium) [IPA Score]
- Attack Vector: Network
- Attack Complexity: Low
- Privileges Required: Low
- User Interaction: None
- Scope: Unchanged
- Confidentiality Impact: Low
- Integrity Impact: None
- Availability Impact: None
CVSS V2 Severity:
Base Metrics 4.0 (Medium) [IPA Score]
- Access Vector: Network
- Access Complexity: Low
- Authentication: Single Instance
- Confidentiality Impact: Partial
- Integrity Impact: None
- Availability Impact: None
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NEC Platforms, Ltd.
- CSDJ -A 03.08.00 and earlier
- CSDJ -B 01.08.00 and earlier
- CSDJ -D 01.08.00 and earlier
- CSDJ -H 01.08.00 and earlier
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A user who can login to the product may obtain unauthorized historical data without access privileges.
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[Apply the appropriate firmware update]
Apply the appropriate firimware update according to the information provided by the developer.
[Apply a Workaround]
The following workaround may mitigate the impacts of this vulnerability.
*Restrict the user permission to view all histrical data (i.e. "Login histry", "Operation history", "Control history", and "Report history")
For more information, please refer to the information provided by the developer (Japanese only).
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NEC Platforms, Ltd.
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- Permissions(CWE-264) [IPA Evaluation]
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- CVE-2021-20653
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- JVN : JVN#87164507
- National Vulnerability Database (NVD) : CVE-2021-20653
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- [2021/02/15]
Web page was published
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