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iDRAC10 Security Configuration Guide

Notes, cautions, and warnings
Overview
Built in iDRAC and PowerEdge Security
- Silicon-based Root-of-Trust
- Cryptographically Verified Trusted Booting
- Signed Firmware Updates
- Non-Root Support
- SELinux
- iDRAC Credential Vault
- BIOS Recovery and Hardware Root of Trust (RoT)
- Live Scanning
Securely Configuring iDRAC Web Server
- Webserver Information
- Enabling HTTPS Redirection
- Configuring the TLS Protocol
- Configuring Encryption Strength
- Configuring Cipher Suite Selection
  - Remote Syslog with TLS
- Setting Cipher Suite Selection using the iDRAC GUI
Secure Connection Using TLS/SSL Certificate
- Secure Connection Using TLS/SSL Certificate
Automatic Certificate Enrollment
Secure Shell (SSH)
- SSH Cryptography Configuration
- Supported SSH Cryptography Schemes
- Using Public Key Authentication for SSH
- Disable SSH in iDRAC
Network Security Configuration
- Dedicated NIC and Shared LOM
- OS to iDRAC Pass-through
- VLAN Usage
- IP Blocking
- IP Range Filtering
- Auto-Discovery
- Auto Config
- iDRAC USB Interfaces
- Configuring iDRAC Direct USB Connection Using the Webserver
Interfaces and Protocols to Access iDRAC
iDRAC Port Configuration
- Security Recommendations for Interfaces, Protocols, and Services
- Disabling IPMI over LAN using Web Interface
- Disabling Serial Over LAN using Web Interface
- Configuring Services using Web Interface
IPMI and SNMP Security Best Practices
- SNMP Security Best Practices
- IPMI Security Best Practices
- Secure NTP
- Redfish Session Login Authentication
Secure Enterprise Key Manager (SEKM) Security
- Create or Change SEKM Security Keys
Virtual Console and Virtual Media Security
VNC Security
- Setting up VNC Viewer with SSL Encryption
User Configuration and Access Control
- Configuring Local Users
- Disabling Access to Modify iDRAC Configuration Settings on Host System
- iDRAC User Roles and Privileges
  - Creating user roles
- Recommended Characters in Usernames and Passwords
- Password Strength Policy
- Secure Default Password
- Changing the Default Login Password using Web Interface
- Force Change of Password (FCP)
- Simple 2-Factor Authentication (Simple 2FA)
- RSA SecurID Two Factor Authentication (2FA) iDRAC10 Datacenter
- Active Directory
- LDAP
- Customizable Security Banner
System Lockdown Mode
Securely Configuring BIOS System Security
Secure Boot Configuration
Securely Erasing Data
Server Inventory, Lifecycle Log, Server Profiles, and Licenses Import and Export
- Configuring Lifecycle Controller Logs Export using Web Interface and HTTPS
- Using HTTPS with a Proxy Securely
Security Events Lifecycle Log
Default Configuration Values
Network Vulnerability Scanning
Security Licensing
Field Service Debug (FSD)
Security Protocol and Data Model
Best Practices
Appendix - References

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SSH Cryptography Configuration

iDRAC provides user control over the cryptographic settings for the SSH daemon such that the user can determine the ideal settings for their environment. The control given to the user is not a relaxation of the settings in any manner. Instead, the feature allows the user the ability to modify the value set for each option to achieve a narrower and stringent cryptographic policy. In other words, the user can only remove values from the options but is not able to add any values other than those that have been defined/allowed in the default value-set.

The cryptographic policies are configured using the following options:

Ciphers—Ciphers
Host-Key-Algorithms—HostKeyAlgorithms
Key-Exchange Algorithms—KeyExchangeAlgorithms
MACs—MACs

Typically, the values for each of these options are set to prudent settings that reflect the best security practices that cater to a wide variety of environments. As such the iDRAC default settings for these options are the same as those described by the SSH package open-source community. These settings can be configured using RACADM command-line interface. Values can only be removed from the options and cannot add any values other than those that have been defined/allowed in the default value-set. See iDRAC RACADM CLI User’s Guide.

Following are the commands to view the current set of cryptographic algorithms:

racadm>>get idrac.sshcrypto.ciphers