DHN1: Secure Network Design Company A Risk Analysis
Company A Risk Analysis
Company A performed an internal risk analysis in anticipation of system integration with Company B. This risk analysis was performed in accordance with NIST SP 800-30 Rev 1 to identify the following:
• vulnerabilities
• risk likelihood
Table A. Risk Classifications
Risk Level
Description
High
The loss of confidentiality, integrity, or availability may be expected to have a severe or catastrophic adverse effect on organizational operations, organizational assets, or individuals.
Moderate
The loss of confidentiality, integrity, or availability may be expected to have a serious adverse effect on organizational operations, organizational assets, or individuals.
Low
The loss of confidentiality, integrity, or availability may be expected to have a limited adverse effect on organizational operations, organizational assets, or individuals.
Table B. Data Sensitivity
Type of Data
Sensitivity
Confidentiality
Integrity
Availability
Customer PII (e.g., Account Numbers, Social Security Numbers, and Phone Numbers)
High
High
Moderate
Employee PII (e.g., Social Security Numbers and Employee Identification Numbers)
High
High
Moderate
Company intellectual property (e.g., credit scoring calculations)
High
High
Moderate
Marketing and advertising
Moderate
Moderate
Low
Table C. System Inventory
System Components
Servers
Windows server 2019; role: internal SharePoint server
Windows server 2019; role: Exchange server
Windows server 2012; role: Application server
Windows server 2012R2; File server
DMZ Windows server 2012; role: FTP and external Web Server
Workstations
75 – Windows 10 Pro
20 – configured for remote desktop access
Switches
4 – Cisco 3750X
Firewall
Fortinet’s Fortigate 800D NGFW
Border router
Cisco 7600
Laptops
14 – Windows 7
6 – Windows 11
Wireless Access Points
2 – Meraki MR28
Cable plant
Cat5e
Table D. Risk Identification
Risk #
Vulnerability
Risk Likelihood
1
Open ports 21-90, 3389
High
2
All users use eight-character passwords
High
3
User accounts no longer required are not removed
Moderate
4
All users have local administrative privileges
Moderate
5
Regular password changes are not enforced
Moderate
6
End-of-Life Equipment in use
Low
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