IR 05000313/2024404

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Cybersecurity Inspection Report 05000313/2024404 and 05000368/2024404
ML24242A217
Person / Time
Site: Arkansas Nuclear  Entergy icon.png
Issue date: 08/29/2024
From: Nick Taylor
NRC/RGN-IV/DORS/EB2
To: Pehrson D
Entergy Operations
References
IR 2024404
Download: ML24242A217 (9)


Text

August 29, 2024

SUBJECT:

ARKANSAS NUCLEAR ONE - CYBERSECURITY INSPECTION REPORT 05000313/2024404 AND 05000368/2024404

Dear Doug Pehrson:

On August 22, 2024, the U.S. Nuclear Regulatory Commission (NRC) completed an inspection at Arkansas Nuclear One. On August 22, 2024, the NRC inspectors discussed the results of this inspection with Brian Patrick, Director, Regulatory & Performance Improvement and other members of your staff. The results of this inspection are documented in the enclosed report.

No findings or violations of more than minor significance were identified during this inspection.

This letter, its enclosure, and your response (if any) will be made available for public inspection and copying at http://www.nrc.gov/reading-rm/adams.html and at the NRC Public Document Room in accordance with Title 10 of the Code of Federal Regulations 2.390, Public Inspections, Exemptions, Requests for Withholding.

Sincerely, Nicholas H. Taylor, Chief Engineering Branch 2 Division of Operating Reactor Safety Docket Nos. 05000313, 05000368 License Nos. DPR-51, NPF-6

Enclosure:

As stated

Inspection Report

Docket Numbers:

05000313 and 05000368

License Numbers:

DPR-51 and NPF-6

Report Numbers:

05000313/2024404 and 05000368/2024404

Enterprise Identifier:

I-2024-404-0010

Licensee:

Entergy Operations, Inc.

Facility:

Arkansas Nuclear One

Location:

Russellville, AR

Inspection Dates:

August 19, 2024, to August 22, 2024

Inspectors:

J. Drake, Senior Reactor Inspector

S. Graves, Senior Reactor Inspector

Approved By:

Nicholas H. Taylor, Chief

Engineering Branch 2

Division of Operating Reactor Safety

SUMMARY

The U.S. Nuclear Regulatory Commission (NRC) continued monitoring the licensees performance by conducting a cybersecurity inspection at Arkansas Nuclear One, in accordance with the Reactor Oversight Process. The Reactor Oversight Process is the NRCs program for overseeing the safe operation of commercial nuclear power reactors. Refer to https://www.nrc.gov/reactors/operating/oversight.html for more information.

List of Findings and Violations

No findings or violations of more than minor significance were identified.

Additional Tracking Items

None.

INSPECTION SCOPES

Inspections were conducted using the appropriate portions of the inspection procedures (IPs) in effect at the beginning of the inspection unless otherwise noted. Currently approved IPs with their attached revision histories are located on the public website at http://www.nrc.gov/reading-rm/doc-collections/insp-manual/inspection-procedure/index.html. Samples were declared complete when the IP requirements most appropriate to the inspection activity were met consistent with Inspection Manual Chapter (IMC) 2201, Security Inspection Program for Commercial Nuclear Power Reactors. The inspectors reviewed selected procedures and records, observed activities, and interviewed personnel to assess licensee performance and compliance with Commission rules and regulations, license conditions, site procedures, and standards.

SAFEGUARDS

71130.10 - Cybersecurity

Cybersecurity (1 Sample)

(1) The team reviewed implementation of Arkansas Nuclear Ones Cybersecurity Plan (CSP) and focused on evaluating changes to the program, critical systems, and critical digital assets (CDAs).

The following IP sections were completed and constitute completion of 1 sample:

  • 03.01, Review Ongoing Monitoring and Assessment Activities
  • 03.02, Verify Defense-in-Depth Protective Strategies (Partial)
  • 03.03, Review of Configuration Management Change Control (Partial)
  • 03.05, Evaluation of Corrective Actions The inspection reviewed the following cybersecurity program change:
  • EC-54065725 Sallyport Security and Cybersecurity Upgrades The team reviewed boundary device configurations, procedures and processes, staff training, and incident response implementation procedures.
  • C619-DD 4 (Canary CT20SD)
  • C629-NIDS-0000626856 (M920 IPS-NS3200 /M920)
  • SIEM (Level 2) SPLUNK The team also reviewed the following CDAs and their coverage by the cybersecurity plan.
  • C618-ADA (PA Active Directory Server)
  • 2C324-IDS1 (Level 3 NIDS McAfee IPS-NS3200 Dell R610)

INSPECTION RESULTS

No findings were identified.

EXIT MEETINGS AND DEBRIEFS

The inspectors verified no proprietary information was retained or documented in this report.

  • On August 22, 2024, the inspectors presented the cyber security inspection results to Brian Patrick, Director, Regulatory & Performance Improvement and other members of the licensee staff.

DOCUMENTS REVIEWED

Inspection

Procedure

Type

Designation

Description or Title

Revision or

Date

CR-ANO-

C-2022-02184, C-2023-00106, C-2023-00386, C-2023-

00390, C-2023-00425, C-2023-00427, C-2023-00429, C-

23-00432, C-2023-00433, C-2023-00434, C-2023-00435,

C-2023-00436, C-2023-00437, C-2024-00580, C-2024-

00581, C-2023-00109, C-2024-01401, C-2024-01402, C-

24-01403, C-2024-01404, C-2024-01407, C-2024-01415,

Corrective Action

Documents

CR-HQN-

22-01377, 2023-00042, 2023-00146, 2023-00161, 2023-

00486, 2023-03651, 2024-00285, 2024-00893

CR-ANO-

C-2024-01428, C-2024-01429, C-2024-01442, C-2024-

01444

Corrective Action

Documents

Resulting from

Inspection

CR-HQN-

24-00907, 2020-00908, 2024-00914, 2024-00915

EN-IT-103-08 Attachment 2 for L3 Kiosk (Unannounced drill)

1/11/2023

ANO-CDA-1902-

00009

NEI 13-10 Indirect CDA Assessment - Level 3 Remediation

Rack CDAs

ANO-CDA-1905-

00017

C619-DD PA Security Data Diode (SEC ANO1)

ANO-CDA-2007-

00006

SIEM white paper and assessment combined document.

CDA-1701-00204

Technical Controls 08-09 Assessment

CDA-2211-00003

Plant Monitoring Computer System NEI 13-10 EP and

Indirect Combined Assessment

CDA-2311-00001

Sally Port Security Equipment NEI 08-09 Direct Assessment

Checklist

OIT-Employee Off Boarding - Account Management

08/28/2023

F-BIT-SQA

Software Quality Assurance (SQA} Training

FCBT-BIT-SQA

Software Quality Assurance (SQA} Training

FCBT-CSG-

CSCNAN

Generic Cyber Security Awareness

FCBT-ESPP-

CYBRINV

Maintain Cyber Security Technical Controls

71130.10

Miscellaneous

FCBT-ESPP-

WLKDWN

Cyber Security Walkdowns

Inspection

Procedure

Type

Designation

Description or Title

Revision or

Date

FCBT-GET-PDM

Control of Portable Digital Media

FCBT-IT-CSAT

Security Assessment Team (CSAT) Activities

FCBT-lT-NCIRT

Nuclear Cyber Incident Response Team

FCBT-SEC-CSGI

Protection Of Unclassified Safeguards & Safeguards

Information-Modified Handling

FFAM-IT-CDAA

Job Familiarization Guide for Perform CDA Assessor

Activities

FFAM-IT-

LAPHARDN

Portable Digital Media Lap11op Hardening and Scanning

FFAM-IT-

MEDIASCAN

Portable Digital Media Kiosk Maintenance and Media

Scanning

FLP-ESP-CDA

Critical Digital Asset Assessor

LO-ALO-2023-

00040

Cyber Security Program Effectiveness Review

SIEM White

Paper

White paper describing Entergys site Cyber Security

Monitoring System (CSMS)

Whitepaper

Vulnerability Management Recovery Plan - 2024 ANO

Inspection

Whitepaper XR-

Actions taken on Northpoint Receiving Warehouse X-Ray

Machine

WT-WTANO-

23-00152

Level Specific Firmware Protected Devices

05/20/2023

0CAN021802

ANO Cyber Security Plan Arkansas Nuclear One - Units 1

and 2 Docket Nos. 50-313 and 50-368

CSWI-1250

Change CDA Passwords Work Instructions

2/20/2018

CSWI-1255

Review of Audit Log Records (Logical) Work Instructions

CSWI-1270

Account Management Work Instructions

CSWI-1280

Monthly Operational Review and Verification of the SIEM

Infrastructure Work Instructions

10/8/2020

EN-EP-202-01

ANO EITER (Equipment Important To Emergency

Response) Matrix

EN-IT-103-01

Control of Portable Digital Media Connected to Critical Digital

Assets

Procedures

EN-IT-103-02

Cyber Security Periodic Activities

Inspection

Procedure

Type

Designation

Description or Title

Revision or

Date

EN-IT-103-06

Audit & Accountability

EN-IT-103-12

Cyber Security Configuration and Change Management

EN-IT-103-14

Vulnerability Management

EN-IT-104

Software Quality Assurance Program

EN-TQ-131

Nuclear Cyber Security Training & Qualifications

Work Orders

54137012, 54126919, 54115753, 54067379