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Arista MLS EOS 4.2x NDM Security Technical Implementation Guide

  • Version/Release: V2R1
  • Published: 2024-06-04
  • Released: 2024-07-24
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This Security Technical Implementation Guide is published as a tool to improve the security of Department of Defense (DOD) information systems. The requirements are derived from the National Institute of Standards and Technology (NIST) 800-53 and related documents. Comments or proposed revisions to this document should be sent via email to the following address: disa.stig_spt@mail.mil.
b
The Arista network device must limit the number of concurrent sessions to an organization-defined number for each administrator account and/or administrator account type.
AC-10 - Medium - CCI-000054 - V-255947 - SV-255947r960735_rule
RMF Control
AC-10
Severity
Medium
CCI
CCI-000054
Version
ARST-ND-000010
Vuln IDs
  • V-255947
Rule IDs
  • SV-255947r960735_rule
Device management includes the ability to control the number of administrators and management sessions that manage a device. Limiting the number of allowed administrators and sessions per administrator based on account type, role, or access type is helpful in limiting risks related to denial-of-service (DoS) attacks. This requirement addresses concurrent sessions for administrative accounts and does not address concurrent sessions by a single administrator via multiple administrative accounts. The maximum number of concurrent sessions must be defined based upon mission needs and the operational environment for each system. At a minimum, limits must be set for SSH, HTTPS, account of last resort, and root account sessions.
Checks: C-59623r882181_chk

Verify the device is configured to limit the number of concurrent management sessions with the following commands: switch#sh run | section management ssh management ssh connection limit 5 ! If the Arista network device is not configured to limit the number of SSH concurrent sessions, this is a finding.

Fix: F-59566r882182_fix

Configure the switch to limit SSH concurrent connections to the device with the following commands: switch#configure switch(config)#management ssh switch(config-mgmt-ssh)#connection limit 5 switch(config-mgmt-ssh)#exit switch#wr !

b
The Arista network device must enforce approved authorizations for controlling the flow of management information within the network device based on information flow control policies.
AC-4 - Medium - CCI-001368 - V-255948 - SV-255948r991781_rule
RMF Control
AC-4
Severity
Medium
CCI
CCI-001368
Version
ARST-ND-000110
Vuln IDs
  • V-255948
Rule IDs
  • SV-255948r991781_rule
A mechanism to detect and prevent unauthorized communication flow must be configured or provided as part of the system design. If management information flow is not enforced based on approved authorizations, the network device may become compromised. Information flow control regulates where management information is allowed to travel within a network device. The flow of all management information must be monitored and controlled so it does not introduce any unacceptable risk to the network device or data. Application-specific examples of enforcement occur in systems that employ rule sets or establish configuration settings that restrict information system services or message-filtering capability based on message content (e.g., implementing key word searches or using document characteristics). Applications providing information flow control must be able to enforce approved authorizations for controlling the flow of management information within the system in accordance with applicable policy.
Checks: C-59624r882184_chk

Verify the Arista network device is configured with access control lists to control the flow of management information. Step 1: Verify SSH has an inbound ACL applied as shown in the example below. sh run | sec management ssh ip access-group MGMT_NETWORK in Step 2: Verify the ACL permits only hosts from the management network to access the device. sh run | sec access-list MGMT_NETWORK ip access-list MGMT_NETWORK 10 permit ip 10.1.12.0/24 any 20 deny ip any any log If the Arista network device is not configured to enforce approved authorizations for controlling the flow of management information within the device based on control policies, this is a finding.

Fix: F-59567r882185_fix

Step 1: Configure an ACL for SSH access using the following commands: switch(config)#ip access-list MGMT_NETWORK switch(config-acl-MGMT_NETWORK)#10 permit ip 10.1.12.0/24 any switch(config-acl-MGMT_NETWORK)#20 deny ip any any log switch(config-acl-MGMT_NETWORK)#exit Step 2: Apply the ACL to management ssh. switch(config)#management ssh switch(config-mgmt-ssh)#ip access-group MGMT_NETWORK in switch(config-mgmt-ssh)#exit

b
The Arista network device must be configured to enforce the limit of three consecutive invalid logon attempts, after which time it must block any login attempt for 15 minutes.
AC-7 - Medium - CCI-000044 - V-255949 - SV-255949r960840_rule
RMF Control
AC-7
Severity
Medium
CCI
CCI-000044
Version
ARST-ND-000120
Vuln IDs
  • V-255949
Rule IDs
  • SV-255949r960840_rule
By limiting the number of failed login attempts, the risk of unauthorized system access via user password guessing, otherwise known as brute-forcing, is reduced.
Checks: C-59625r882187_chk

Verify the Arista device is configured to enforce the limit of three consecutive invalid logon attempts with the following command: switch#show running-config | section aaa aaa authentication policy lockout failure 3 duration 900 If the Arista device is not configured to enforce the limit of three consecutive invalid logon attempts, this is a finding.

Fix: F-59568r882188_fix

Configure the account lockout policy using the following commands: switch(config)#aaa authentication policy lockout failure 3 switch(config)#duration 900 switch(config)#exit

b
The Arista network device must display the Standard Mandatory DOD Notice and Consent Banner before granting access to the device.
AC-8 - Medium - CCI-000048 - V-255950 - SV-255950r960843_rule
RMF Control
AC-8
Severity
Medium
CCI
CCI-000048
Version
ARST-ND-000130
Vuln IDs
  • V-255950
Rule IDs
  • SV-255950r960843_rule
Display of the DOD-approved use notification before granting access to the network device ensures privacy and security notification verbiage used is consistent with applicable federal laws, Executive Orders, directives, policies, regulations, standards, and guidance. System use notifications are required only for access via logon interfaces with human users. Satisfies: SRG-APP-000068-NDM-000215, SRG-APP-000069-NDM-000216
Checks: C-59626r882190_chk

Verify the Arista network device is configured to present a DOD-approved banner that is formatted in accordance with DTM-08-060. Verify the Arista device uses the following verbiage for applications that can accommodate banners of 1300 characters by using the following command: switch#show configuration | section banner "You are accessing a U.S. Government (USG) Information System (IS) that is provided for USG-authorized use only. By using this IS (which includes any device attached to this IS), you consent to the following conditions: -The USG routinely intercepts and monitors communications on this IS for purposes including, but not limited to, penetration testing, COMSEC monitoring, network operations and defense, personnel misconduct (PM), law enforcement (LE), and counterintelligence (CI) investigations. -At any time, the USG may inspect and seize data stored on this IS. -Communications using, or data stored on, this IS are not private, are subject to routine monitoring, interception, and search, and may be disclosed or used for any USG-authorized purpose. -This IS includes security measures (e.g., authentication and access controls) to protect USG interests--not for your personal benefit or privacy. -Notwithstanding the above, using this IS does not constitute consent to PM, LE or CI investigative searching or monitoring of the content of privileged communications, or work product, related to personal representation or services by attorneys, psychotherapists, or clergy, and their assistants. Such communications and work product are private and confidential. See User Agreement for details." Use the following verbiage for operating systems that have severe limitations on the number of characters that can be displayed in the banner: "I've read & consent to terms in IS user agreem't." If the Arista device does not display such a banner, this is a finding.

Fix: F-59569r882191_fix

Configure the Arista network device to display the Standard Mandatory DOD Notice and Consent Banner before granting access to the device. switch(config)#banner login Enter TEXT message. <Insert banner here> Type 'EOF' on its own line to end.

b
The Arista network device must be configured to audit all administrator activity.
AC-2 - Medium - CCI-000018 - V-255951 - SV-255951r960777_rule
RMF Control
AC-2
Severity
Medium
CCI
CCI-000018
Version
ARST-ND-000150
Vuln IDs
  • V-255951
Rule IDs
  • SV-255951r960777_rule
This requirement supports non-repudiation of actions taken by an administrator and is required in order to maintain the integrity of the configuration management process. All configuration changes to the network device are logged, and administrators authenticate with two-factor authentication before gaining administrative access. Together, these processes will ensure the administrators can be held accountable for the configuration changes they implement. Satisfies: SRG-APP-000026-NDM-000208, SRG-APP-000027-NDM-000209, SRG-APP-000028-NDM-000210, SRG-APP-000029-NDM-000211, SRG-APP-000080-NDM-000220, SRG-APP-000091-NDM-000223, SRG-APP-000101-NDM-000231, SRG-APP-000319-NDM-000283, SRG-APP-000343-NDM-000289, SRG-APP-000495-NDM-000318, SRG-APP-000499-NDM-000319, SRG-APP-000503-NDM-000320, SRG-APP-000504-NDM-000321, SRG-APP-000506-NDM-000323
Checks: C-59627r882193_chk

Verify the Arista network device is configured to audit all administrator activity. Verify the AAA logging settings in the configuration file with the following example: switch#show running-config | section aaa aaa authentication policy on-success log aaa authentication policy on-failure log aaa accounting exec default start-stop group radius logging aaa accounting system default start-stop group radius logging aaa accounting commands all default start-stop logging group radius If the Arista network device is not configured to audit all administrator activity, this is a finding.

Fix: F-59570r882194_fix

Configure the Arista network device to audit all administrator activity. Configure the AAA settings to capture administrator activity events. switch(config)#aaa authentication policy on-success log switch(config)#aaa authentication policy on-failure log switch(config)#aaa accounting exec default start-stop group radius logging switch(config)#aaa accounting system default start-stop group radius logging switch(config)#aaa accounting commands all default start-stop logging group radius

c
The Arista network device must be configured to prohibit the use of all unnecessary and/or nonsecure functions, ports, protocols, and/or services.
CM-7 - High - CCI-000382 - V-255952 - SV-255952r960966_rule
RMF Control
CM-7
Severity
High
CCI
CCI-000382
Version
ARST-ND-000340
Vuln IDs
  • V-255952
Rule IDs
  • SV-255952r960966_rule
To prevent unauthorized connection of devices, unauthorized transfer of information, or unauthorized tunneling (i.e., embedding of data types within data types), organizations must disable unused or unnecessary physical and logical ports/protocols on information systems. Network devices are capable of providing a wide variety of functions and services. Some of the functions and services provided by default may not be necessary to support essential organizational operations. Additionally, it is sometimes convenient to provide multiple services from a single component (e.g., email and web services); however, doing so increases risk over limiting the services provided by any one component. To support the requirements and principles of least functionality, the network device must support the organizational requirements providing only essential capabilities and limiting the use of ports, protocols, and/or services to only those required, authorized, and approved. Some network devices have capabilities enabled by default; if these capabilities are not necessary, they must be disabled. If a particular capability is used, then it must be documented and approved.
Checks: C-59628r882196_chk

Verify the Arista network device has telnet and https disabled. Step 1: Determine if telnet is disabled with the following command: switch#show management telnet Telnet status for Default VRF is disabled Telnet session limit is 20 Telnet session limit per host is 20 If telnet is enabled, this is a finding. Step 2: Determine if https is disabled with the following command: switch#show management http-server SSL Profile: none FIPS Mode: No QoS DSCP: 0 LogLevel: none CSP Frame Ancestor: None TLS Protocols: 1.0 1.1 1.2 VRF Server Status Enabled Services ------------------------------------------------------- default HTTPS: port 443 http-commands If Enabled Services in the output shows http-commands, this is a finding.

Fix: F-59571r882197_fix

Configure the Arista network device to prohibit the use of all unnecessary and/or nonsecure functions, ports, protocols, and/or services. Step 1: Disable telnet with the following command: switch#config switch(config)#management telnet switch(config-mgmt-telnet)#shutdown switch(config-mgmt-telnet)#exit switch(config)#exit Step 2: Disable https with the following command: switch#config switch(config)#management api http-commands switch(config-mgmt-api-http-commands)#shutdown switch(config-mgmt-api-http-commands)#exit switch(config)#exit

b
The Arista network device must be configured with only one local account to be used as the account of last resort in the event the authentication server is unavailable.
AC-2 - Medium - CCI-001358 - V-255953 - SV-255953r991782_rule
RMF Control
AC-2
Severity
Medium
CCI
CCI-001358
Version
ARST-ND-000350
Vuln IDs
  • V-255953
Rule IDs
  • SV-255953r991782_rule
Authentication for administrative (privileged level) access to the device is required at all times. An account can be created on the device's local database for use when the authentication server is down or connectivity between the device and the authentication server is not operable. This account is referred to as the account of last resort since it is intended to be used as a last resort and when immediate administrative access is absolutely necessary. The account of last resort logon credentials must be stored in a sealed envelope and kept in a safe. The safe must be periodically audited to verify the envelope remains sealed. The signature of the auditor and the date of the audit should be added to the envelope as a record. Administrators should secure the credentials and disable the root account (if possible) when not needed for system administration functions.
Checks: C-59629r882199_chk

Step 1: Verify on the Arista network device that an account of last resort is configured using the following command: switch#sh running-config | section username username Emergency-Admin privilege 15 role network-admin secret sha512 $6$ObuWg.Eu7DwGD8k/$EgT0uI.hLrStrmxUvJijecxDXr.Zy.imi1UrDzDP38q8Erqgkfe0IhHzIhYmR3ekW74XdAFf7I6SgzAoUFd0 Step 2: Verify the Arista network device default account has been overwritten with the local account of last resort. switch#sh running-config | section username username Emergency-Admin privilege 15 role network-admin secret sha512 $6$ObuWg.Eu7DwGD8k/$EgT0uI.hLrStrmxUvJijecxDXr.Zy.imi1UrDzDP38q8Erqgkfe0IhHzIhYmR3ekW74XdAFf7I6SgzAoUFd0 If one local account on the Arista network device does not exist for use as the account of last resort in the event the authentication server is unavailable, this is a finding. If the default admin account exists on the device, this is a finding.

Fix: F-59572r882200_fix

Step 1: Configure the Arista network device for a username "Emergency-Admin" account of last resort using the following command: switch#configure switch(config)#username Emergency-Admin privilege 15 role network-admin secret 0 <plain-text password> Step 2: Ensure the Arista network device default account has been overwritten with the local account of last resort. switch#sh running-config | section username username Emergency-Admin privilege 15 role network-admin secret sha512 $6$ObuWg.Eu7DwGD8k/$EgT0uI.hLrStrmxUvJijecxDXr.Zy.imi1UrDzDP38q8Erqgkfe0IhHzIhYmR3ekW74XdAFf7I6SgzAoUFd0 ! Use the following command to remove the default admin account if necessary: switch(config)#no username admin Step 3: As a final step in the case all administrative accounts are locked out of the device, ensure the username and password created for the account of last resort is contained within a sealed envelope and kept in a safe or secure network location.

b
The Arista network device must enforce a minimum 15-character password length.
- Medium - CCI-004066 - V-255954 - SV-255954r991783_rule
RMF Control
Severity
Medium
CCI
CCI-004066
Version
ARST-ND-000380
Vuln IDs
  • V-255954
Rule IDs
  • SV-255954r991783_rule
Password complexity, or strength, is a measure of the effectiveness of a password in resisting attempts at guessing and brute-force attacks. Password length is one factor of several that helps to determine strength and how long it takes to crack a password. The shorter the password, the lower the number of possible combinations that need to be tested before the password is compromised. Use of more characters in a password helps to exponentially increase the time and/or resources required to compromise the password.
Checks: C-59630r882202_chk

Review the Arista device configuration "show management security" to determine the minimum 15-character password length. switch#show run | section management security management security password minimum length 15 ! If the Arista network device does not enforce a minimum 15-character password length, this is a finding.

Fix: F-59573r882203_fix

Configure the Arista device to enforce a minimum password 15-character length. switch#configure switch(config)#management security switch(config-mgmt-security)#password minimum length 15 switch(config-mgmt-security)#exit switch(config)# !

c
The Arista network device must use FIPS 140-2 approved algorithms for authentication to a cryptographic module.
IA-7 - High - CCI-000803 - V-255955 - SV-255955r961050_rule
RMF Control
IA-7
Severity
High
CCI
CCI-000803
Version
ARST-ND-000470
Vuln IDs
  • V-255955
Rule IDs
  • SV-255955r961050_rule
Unapproved mechanisms used for authentication to the cryptographic module are not validated and therefore cannot be relied upon to provide confidentiality or integrity, and DOD data may be compromised. Network devices utilizing encryption are required to use FIPS-compliant mechanisms for authenticating to cryptographic modules. FIPS 140-2 is the current standard for validating that mechanisms used to access cryptographic modules utilize authentication that meets DOD requirements. However, authentication algorithms must configure security processes to use only FIPS-approved and NIST-recommended authentication algorithms.
Checks: C-59631r882205_chk

Determine if the Arista network device uses FIPS 140-2 approved algorithms for authentication to a cryptographic module. Step 1: Review the Arista network device configuration to verify hardware or software entropy is enabled and FIPS restrictions are used in accordance with NIST-specified validated cryptographic requirements. switch# show management security CPU Model: AMD GX-424CC SOC with Radeon(TM) R5E Graphics Security Chip: N313X Crypto Module: Arista EOS Crypto Module v2.0 Forwarding ASIC: Jericho0 Model: Jericho Blocked client protocols: None Hardware entropy generation is enabled Haveged entropy generation is disabled Jitter entropy generation is disabled ! If both hardware entropy and haveged entropy are disabled, this is a finding. Step 2: Review the Arista network device configuration to verify that FIPS restrictions are enabled for management security to use EOS Crypto Module for the RSA key pair used for SSH and the device can only use FIPS-approved algorithms. switch(config)show run | section management ssh management ssh fips restrictions ! If the FIPS restrictions line is not present, this is a finding.

Fix: F-59574r882206_fix

Configure the Arista network device to use FIPS 140-2 approved algorithms for authentication to a cryptographic module. Step 1: Configure the Arista network device to ensure hardware or software entropy is enabled and FIPS restrictions are used in accordance with NIST-specified validated cryptographic requirements. switch(config)#management security switch(config-mgmt-security)#entropy source hardware OR (only set one or the other, not both) switch(config-mgmt-security)#entropy source haveged ! Step 2: Configure the Arista network device to ensure the old RSA key pairs are zeroized and a new FIPS-approved hostkey is generated. It is extremely important to complete this step after hardware or software entropy is configured. switch#reset ssh hostkey rsa ! *IMPORTANT part of Step 2* Review the Arista network device configuration new key has been generated. switch#show management ssh hostkey rsa public ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQCz8vDiTWYcGuVrv04fwPj8YYBaHU+UFFl5zrFjeYiVl/dvswsiRSophF98aLjnRdJJ0NcjovjEEUnP0Q39UCoSYQRjrUzK2nzRMMD2IKxZyNhx9+/OT60lgh4M//kwxq0vMI1nk1pUO/wRaN1B4IzDizcyP9jY28bSdz8Y5TyLgrca6Ja4v99Io+lkHG0bj6X8s+VnBsFWMrlabw1s4bUPr9PzMfUHx9gLHCVR+DFZvPHMR4sSK14F949IJgOKsXj chassisAddr=84:73:cf:6f:6c:55 Step 3: Enable FIPS restrictions for SSH and so the device can only use FIPS-approved algorithms. switch(config)management ssh switch(config-mgmt-ssh)#fips restrictions

c
The Arista network device must terminate all network connections associated with a device management session at the end of the session, or the session must be terminated after 10 minutes of inactivity except to fulfill documented and validated mission requirements.
SC-10 - High - CCI-001133 - V-255956 - SV-255956r991784_rule
RMF Control
SC-10
Severity
High
CCI
CCI-001133
Version
ARST-ND-000490
Vuln IDs
  • V-255956
Rule IDs
  • SV-255956r991784_rule
Terminating an idle session within a short time period reduces the window of opportunity for unauthorized personnel to take control of a management session enabled on the console or console port that has been left unattended. In addition, quickly terminating an idle session will also free up resources committed by the managed network element. Terminating network connections associated with communications sessions includes, for example, de-allocating associated TCP/IP address/port pairs at the operating system level, or de-allocating networking assignments at the application level if multiple application sessions are using a single, operating system-level network connection. This does not mean that the device terminates all sessions or network access; it only ends the inactive session and releases the resources associated with that session. Satisfies: SRG-APP-000190-NDM-000267, SRG-APP-000186-NDM-000266
Checks: C-59632r882208_chk

Verify the Arista device is configured for 10-minute inactivity timeout for management sessions. switch#sh run | section management ! interface Management1 ip address 172.28.134.55/20 ! management console idle-timeout 10 ! management ssh idle-timeout 10 ! If the Arista network device is not configured to terminate the connection associated with a device management session at the end of the session or after 10 minutes of inactivity, this is a finding.

Fix: F-59575r882209_fix

Configure the Arista network device to terminate the connections after 10 minutes of inactivity. Step 1: Configure the settings for the console. switch(config)#management console switch(config-mgmt-console)#idle-timeout 10 switch(config-mgmt-console)#exit switch(config)# ! Step 2: Configure the settings for SSH. switch(config)#management ssh switch(config-mgmt-ssh)#idle-timeout 10 switch(config-mgmt-console)#exit switch(config)# !

b
If the Arista network device uses role-based access control, the network device must enforce organization-defined role-based access control policies over defined subjects and objects.
CM-5 - Medium - CCI-001813 - V-255957 - SV-255957r987662_rule
RMF Control
CM-5
Severity
Medium
CCI
CCI-001813
Version
ARST-ND-000550
Vuln IDs
  • V-255957
Rule IDs
  • SV-255957r987662_rule
Organizations can create specific roles based on job functions and the authorizations (i.e., privileges) to perform needed operations on organizational information systems associated with the organization-defined roles. When administrators are assigned to the organizational roles, they inherit the authorizations or privileges defined for those roles. Role-based access control (RBAC) simplifies privilege administration for organizations because privileges are not assigned directly to every administrator (which can be a significant number of individuals for mid- to large-size organizations) but are instead acquired through role assignments. RBAC can be implemented either as a mandatory or discretionary form of access control. The RBAC policies and the subjects and objects are defined uniquely for each network device, so they cannot be specified in the requirement. Satisfies: SRG-APP-000329-NDM-000287, SRG-APP-000380-NDM-000304
Checks: C-59633r882211_chk

Determine if the network device enforces role-based access control policy over defined subjects and objects. This requirement may be met through use of a properly configured authentication server. Note: If not using role-based access for the network device, this check is Not Applicable. Step 2: Verify the Arista network device configured AAA servers are synchronized for all role-based authentication access control structure defined by role types and user-defined control policies over defined subjects and objects. switch(config)#show running-config | section role role network-admin 10 permit command .* ! role operator 10 permit command show running-config [all|detail] sanitized 20 deny command &gt;|&gt;&gt;|extension|\||session|do|delete|copy|rmdir|mkdir|python-shell|bash|platform|scp|append|redirect|tee|more|less|who|show run.* 30 deny mode config command (no |default )?(username|role|aaa|tcpdump|schedule|event.*) 40 permit command .* ! role tester 10 permit command show running-config [all|detail] sanitized 20 deny command &gt;|&gt;&gt;|extension|\||session|do|delete|copy|rmdir|mkdir|python-shell|bash|platform|scp|append|redirect|tee|more|less|who|show run.* 30 deny mode config command (no |default )(username|role|aaa|tcpdump|schedule|event.*) 40 permit command .* If role-based access control policy is not enforced over defined subjects and objects, this is a finding.

Fix: F-59576r882212_fix

Configure the network device and its associated authentication server to enforce role-based access control policy over defined subjects and objects. switch(config)# role network-admin 10 permit command .* ! role operator 10 permit command show running-config [all|detail] sanitized 20 deny command >|>>|extension|\||session|do|delete|copy|rmdir|mkdir|python-shell|bash|platform|scp|append|redirect|tee|more|less|who|show run.* 30 deny mode config command (no |default )?(username|role|aaa|tcpdump|schedule|event.*) 40 permit command .* ! role tester 10 permit command show running-config [all|detail] sanitized 20 deny command >|>>|extension|\||session|do|delete|copy|rmdir|mkdir|python-shell|bash|platform|scp|append|redirect|tee|more|less|who|show run.* 30 deny mode config command (no |default )(username|role|aaa|tcpdump|schedule|event.*) 40 permit command .*

b
The Arista network device must be configured to synchronize internal system clocks using redundant authenticated time sources.
AU-8 - Medium - CCI-001889 - V-255958 - SV-255958r991785_rule
RMF Control
AU-8
Severity
Medium
CCI
CCI-001889
Version
ARST-ND-000600
Vuln IDs
  • V-255958
Rule IDs
  • SV-255958r991785_rule
The loss of connectivity to a particular authoritative time source will result in the loss of time synchronization (free-run mode) and increasingly inaccurate time stamps on audit events and other functions. Multiple time sources provide redundancy by including a secondary source. Time synchronization is usually a hierarchy; clients synchronize time to a local source while that source synchronizes its time to a more accurate source. The network device must utilize an authoritative time server and/or be configured to use redundant authoritative time sources. This requirement is related to the comparison done in CCI-001891. DOD-approved solutions consist of a combination of a primary and secondary time source using a combination or multiple instances of the following: a time server designated for the appropriate DOD network (NIPRNet/SIPRNet); United States Naval Observatory (USNO) time servers; and/or the Global Positioning System (GPS). The secondary time source must be located in a different geographic region than the primary time source. Satisfies: SRG-APP-000373-NDM-000298, SRG-APP-000374-NDM-000299, SRG-APP-000375-NDM-000300, SRG-APP-000395-NDM-000347
Checks: C-59634r882214_chk

Determine if the network device is configured to synchronize internal information system clocks with authenticated primary and secondary time sources. Verify the Arista network device configuration with the following example: switch# show running-config | section ntp ntp authentication-key 12 sha1 7 06131C2058470A58 ntp trusted-key 12 ntp authenticate servers ntp local-interface Management1 ntp server 192.168.16.36 prefer key 12 ntp server 192.168.16.37 key 12 If the Arista network device is not configured to synchronize internal system clocks with the primary and secondary time sources, this is a finding. If the Arista network device does not authenticate Network Time Protocol sources using authentication that is cryptographically based, this is a finding.

Fix: F-59577r882215_fix

Configure the Arista network device for at least two trusted time sources and to use cryptographic authentication with the following command example: switch#config switch(config)#ntp authentication-key 12 sha1 0 <key> switch(config)#ntp trusted-key 12 switch(config)#ntp authenticate servers switch(config)#ntp local-interface Management1 switch(config)#ntp server 192.168.16.36 prefer key 12 switch(config)#ntp server 192.168.16.37 key 12 switch(config)#exit Configure the local time zone for the device. switch#config switch(config)#clock timezone <timezone> switch(config)#exit

b
The Arista network device must be configured to authenticate SNMP messages using a FIPS-validated Keyed-Hash Message Authentication Code (HMAC).
IA-3 - Medium - CCI-001967 - V-255959 - SV-255959r961506_rule
RMF Control
IA-3
Severity
Medium
CCI
CCI-001967
Version
ARST-ND-000660
Vuln IDs
  • V-255959
Rule IDs
  • SV-255959r961506_rule
Without authenticating devices, unidentified or unknown devices may be introduced, thereby facilitating malicious activity. Bidirectional authentication provides stronger safeguards to validate the identity of other devices for connections that are of greater risk. A local connection is any connection with a device communicating without the use of a network. A network connection is any connection with a device that communicates through a network (e.g., local area or wide area network, internet). A remote connection is any connection with a device communicating through an external network (e.g., the internet). Because of the challenges of applying this requirement on a large scale, organizations are encouraged to only apply the requirement to those limited number (and type) of devices that truly need to support this capability.
Checks: C-59635r882217_chk

Review the network device configuration to verify SNMP messages are authenticated using a FIPS-validated HMAC. Verify the Arista network device is configured for the following SNMP example parameters: switch(config)#show run | section snmp snmp-server engineID local f5717f444ca880dbb200 snmp-server chassis-id ID CC-7050X3 snmp-server contact FedSE snmp-server location JITC snmp-server view snmpview system included snmp-server group testers v3 priv read snmpview snmp-server user jitc-sw testers v3 localized f8527f444ca990dcc200 auth sha 7b65225a6abf5111cd951e6cb7e105aef5bcd734 priv aes a1aedb1986642e766d4c8032d58e73b72bc3528b snmp-server host 192.168.10.31 version 3 priv jitc-sw snmp-server enable traps snmp authentication snmp-server enable traps snmp link-down snmp-server enable traps snmp link-up ! If the Arista network device is not configured to authenticate SNMP messages using a FIPS-validated HMAC, this is a finding.

Fix: F-59578r882218_fix

Configure the network device to authenticate SNMP messages using a FIPS-validated HMAC. Configure the Arista network device following the example SNMP parameters to ensure messages are authenticated using FIPS-validated HMAC: switch(config)#snmp-server engineID local f5717f444ca880dbb200 switch(config)#snmp-server chassis-id ID CC-7050X3 switch(config)#snmp-server contact FedSE switch(config)#snmp-server location JITC switch(config)#snmp-server view snmpview system included switch(config)#snmp-server group testers v3 priv read snmpview switch(config)#snmp-server user jitc-sw testers v3 localized f8527f444ca990dcc200 auth sha 7b65225a6abf5111cd951e6cb7e105aef5bcd734 priv aes a1aedb1986642e766d4c8032d58e73b72bc3528b switch(config)#snmp-server host 192.168.10.31 version 3 priv jitc-sw switch(config)#snmp-server enable traps snmp authentication switch(config)#snmp-server enable traps snmp link-down switch(config)#snmp-server enable traps snmp link-up

c
The Arista network devices must use FIPS-validated Keyed-Hash Message Authentication Code (HMAC) to protect the integrity of remote maintenance sessions.
IA-2 - High - CCI-001941 - V-255960 - SV-255960r961554_rule
RMF Control
IA-2
Severity
High
CCI
CCI-001941
Version
ARST-ND-000690
Vuln IDs
  • V-255960
Rule IDs
  • SV-255960r961554_rule
Unapproved mechanisms used for authentication to the cryptographic module are not verified and therefore cannot be relied upon to provide confidentiality or integrity, and DOD data may be compromised. Nonlocal maintenance and diagnostic activities are those activities conducted by individuals communicating through a network, either an external network (e.g., the internet) or an internal network. Currently, HMAC is the only FIPS-approved algorithm for generating and verifying message/data authentication codes in accordance with FIPS 198-1. Products that are FIPS 140-2 validated will have an HMAC that meets specification; however, the option must be configured for use as the only message authentication code used for authentication to cryptographic modules. Separate requirements for configuring applications and protocols used by each application (e.g., SNMPv3, SSHv2, NTP, HTTPS, and other protocols and applications that require server/client authentication) are required to implement this requirement. Where SSH is used, the SSHv2 protocol suite is required because it includes Layer 7 protocols such as SCP and SFTP, which can be used for secure file transfers. Satisfies: SRG-APP-000411-NDM-000330, SRG-APP-000156-NDM-000250
Checks: C-59636r882220_chk

Determine if the Arista network device is configured to use FIPS-validated HMAC to protect the integrity of remote maintenance sessions. NOTE: Although allowed by SP800-131Ar2 for some applications, SHA-1 is considered a compromised hashing standard and is being phased out of use by industry and government standards. Unless required for legacy use, DOD systems should not be configured to use SHA-1 for integrity of remote access sessions. Verify the HMAC settings for SSH using the following command: switch#sh run | section management ssh mac hmac-sha2-256 hmac-sha2-512 If the Arista network device does not implement replay-resistant authentication mechanisms for network access to privileged accounts, this is a finding.

Fix: F-59579r882221_fix

Configure the Arista network device to use FIPS-validated HMAC to protect the integrity of remote maintenance sessions. switch(config)#management ssh switch(config-mgmt-ssh)#mac hmac-sha2-256 hmac-sha2-512 switch(config-mgmt-ssh)#exit

c
The Arista network device must be configured to implement cryptographic mechanisms using a FIPS 140-2 approved algorithm to protect the confidentiality of remote maintenance sessions.
MA-4 - High - CCI-003123 - V-255961 - SV-255961r961557_rule
RMF Control
MA-4
Severity
High
CCI
CCI-003123
Version
ARST-ND-000700
Vuln IDs
  • V-255961
Rule IDs
  • SV-255961r961557_rule
This requires the use of secure protocols instead of their unsecured counterparts, such as SSH instead of telnet, SCP instead of FTP, and HTTPS instead of HTTP. If unsecured protocols (lacking cryptographic mechanisms) are used for sessions, the contents of those sessions will be susceptible to eavesdropping, potentially putting sensitive data (including administrator passwords) at risk of compromise and potentially allowing hijacking of maintenance sessions.
Checks: C-59637r882223_chk

Validate that a FIPS validated SSH encryption algorithm is selected. NOTE: AES-CBC algorithms have been considered compromised and are no longer recommended for cryptographic algorithms. AES-CTR and AES-GCM are both superior algorithms and are recommended. sh run | section management ssh cipher aes256-ctr aes512-ctr aes128-ctr If the Arista network device is not configured to implement cryptographic mechanisms to protect the confidentiality of remote maintenance sessions using a FIPS 140-2 approved algorithm, this is a finding.

Fix: F-59580r882224_fix

Configure the Arista network device to use FIPS-approved algorithms to protect the confidentiality of remote maintenance sessions. switch(config)#management ssh switch(config-mgmt-ssh)#cipher aes256-ctr aes512-ctr aes128-ctr

b
The Arista network device must be configured to capture all DOD auditable events.
AU-3 - Medium - CCI-000130 - V-255962 - SV-255962r960891_rule
RMF Control
AU-3
Severity
Medium
CCI
CCI-000130
Version
ARST-ND-000790
Vuln IDs
  • V-255962
Rule IDs
  • SV-255962r960891_rule
Auditing and logging are key components of any security architecture. Logging the actions of specific events provides a means to investigate an attack; to recognize resource utilization or capacity thresholds; or to identify an improperly configured network device. If auditing is not comprehensive, it will not be useful for intrusion monitoring, security investigations, and forensic analysis. Satisfies: SRG-APP-000095-NDM-000225, SRG-APP-000096-NDM-000226, SRG-APP-000097-NDM-000227, SRG-APP-000098-NDM-000228, SRG-APP-000099-NDM-000229, SRG-APP-000100-NDM-000230, SRG-APP-000516-NDM-000334, SRG-APP-000357-NDM-000293, SRG-APP-000360-NDM-000295, SRG-APP-000505-NDM-000322
Checks: C-59638r882226_chk

Verify the Arista network device is configured to audit all DOD auditable events. Verify the logging settings in the configuration file with the following example: switch#sh running-config | section logging logging buffered informational logging trap informational NOTE: Acceptable settings include debugging, informational, and notifications to adjust syslog server traffic impact. Setting to higher severity levels can cause necessary lower-level events to be missed. If the Arista network device is not configured to audit all DOD auditable events, this is a finding.

Fix: F-59581r882227_fix

Configure a logging level sufficient to capture all DOD auditable events. switch(config)#logging buffered informational switch(config)#logging trap informational NOTE: Acceptable settings include debugging, informational, and notifications to adjust syslog server traffic impact. Setting to higher severity levels can cause necessary lower-level events to be missed.

c
The network device must be configured to use an authentication server to authenticate users prior to granting administrative access.
CM-6 - High - CCI-000370 - V-255963 - SV-255963r961863_rule
RMF Control
CM-6
Severity
High
CCI
CCI-000370
Version
ARST-ND-000810
Vuln IDs
  • V-255963
Rule IDs
  • SV-255963r961863_rule
Centralized management of authentication settings increases the security of remote and nonlocal access methods. This control is particularly important protection against the insider threat. With robust centralized management, audit records for administrator account access to the organization's network devices can be more readily analyzed for trends and anomalies. The alternative method of defining administrator accounts on each device exposes the device configuration to remote access authentication attacks and system administrators with multiple authenticators for each network device.
Checks: C-59639r882229_chk

Verify the Arista network device is configured to use an authentication server as primary source for authentication. Verify the Arista network device configuration for RADIUS server IP, aaa group server, and defined encryption key using the following example command: switch#show running-config |section radius radius-server host 192.168.10.101 key 7 106D1A182224E12AZ ! aaa group server radius RADIUS_1 server 192.168.10.101 ! switch#show running-config | section aaa aaa authentication login default group radius local aaa authentication login console group radius local aaa authentication dot1x default group radius aaa authentication policy on-success log aaa authentication policy on-failure log aaa authorization console aaa authorization commands all default local aaa accounting exec default start-stop group radius logging aaa accounting system default start-stop group radius logging aaa accounting commands all default start-stop logging group radius If the Arista network device is not configured to use an authentication server to authenticate users prior to granting administrative access, this is a finding.

Fix: F-59582r882230_fix

Configure the Arista network device to use an authentication server. Step 1: Configure the Arista network device to use RADIUS server using the following commands: switch#config switch(config)#radius-server host 192.168.10.101 key 7 106D1A182224E12AZ aaa group server radius RADIUS_1 server 192.168.10.101 Step 2: Configure all network connections associated with device management to use an authentication server for login authentication. switch(config)#aaa authentication login default group radius local aaa authentication login console group radius local aaa authentication dot1x default group radius aaa authentication policy on-success log aaa authentication policy on-failure log aaa authorization console aaa authorization commands all default local aaa accounting exec default start-stop group radius logging aaa accounting system default start-stop group radius logging aaa accounting commands all default start-stop logging group radius switch(config)#exit

b
The network device must be configured to conduct backups of system level information contained in the information system when changes occur.
CP-9 - Medium - CCI-000537 - V-255964 - SV-255964r961863_rule
RMF Control
CP-9
Severity
Medium
CCI
CCI-000537
Version
ARST-ND-000820
Vuln IDs
  • V-255964
Rule IDs
  • SV-255964r961863_rule
System-level information includes default and customized settings and security attributes, including ACLs that relate to the network device configuration, as well as software required for the execution and operation of the device. Information system backup is a critical step in ensuring system integrity and availability. If the system fails and there is no backup of the system-level information, a denial of service condition is possible for all who utilize this critical network component. This control requires the network device to support the organizational central backup process for system-level information associated with the network device. This function may be provided by the network device itself; however, the preferred best practice is a centralized backup rather than each network device performing discrete backups.
Checks: C-59640r882232_chk

Verify the Arista network device is configured with an “event-handler” to complete an incremental backup of the running configuration, which can be maintained in the switch flash memory stored in /mnt/flash/startup-config_directory (filetime): switch#show run | section event-handler event-handler CFG_BACKUP trigger on-startup-config action bash buf () { filetime=$(date +%Y%m%d); cp /mnt/flash/startup-config /mnt/flash/startup-config_${filetime}; }; buf ! If the Arista network device is not configured to conduct backups of system-level data when changes occur, this is a finding.

Fix: F-59583r882233_fix

Configure the Arista network device with an “event-handler” to complete an incremental backup of the running configuration, which can be maintained in the switch flash memory stored in /mnt/flash/startup-config_directory (filetime): switch#config switch(config)#event-handler CFG_BACKUP switch(config-handler-CFG_BACKUP)#trigger on-startup-config switch(config-handler-CFG_BACKUP)#action bash buf () { filetime=$(date +%Y%m%d); cp /mnt/flash/startup-config /mnt/flash/startup-config_${filetime}; }; buf switch(config-handler-CFG_BACKUP)#exit switch(config)#exit !

b
The Arista network device must obtain its public key certificates from an appropriate certificate policy through an approved service provider.
SC-17 - Medium - CCI-001159 - V-255965 - SV-255965r961863_rule
RMF Control
SC-17
Severity
Medium
CCI
CCI-001159
Version
ARST-ND-000840
Vuln IDs
  • V-255965
Rule IDs
  • SV-255965r961863_rule
For user certificates, each organization obtains certificates from an approved, shared service provider, as required by OMB policy. For federal agencies operating a legacy public key infrastructure cross-certified with the Federal Bridge Certification Authority at medium assurance or higher, this Certification Authority will suffice.
Checks: C-59641r882235_chk

Determine if the Arista network device obtains public key certificates from an appropriate certificate policy through an approved service provider. Note: This check is Not Applicable if not using any PKI certificates. Verify the DOD PKI certificates are copied to /certificate directory on the switch as outlined in the Arista Military Deployment Guide and configured as in the section "Configuring RSA SecureID with OTP Management". switch# #dir certificate: Directory of certificate:/ -rw- 2025 Apr 30 17:34 ARISTA_ROOT_CA.crt -rw- 2110 Apr 30 17:34 ARISTA_SIGNING_CA.crt -rw- 2015 Apr 30 17:35 Arista-CCS-720XP-48Y6.pem -rw- 2020 Apr 30 17:35 DOD_JITC_Root_CA_3__0x01__DOD_JITC_Root_CA_3.cer -rw- 2125 Apr 30 17:35 CA-60.cer ! Verify the provider of the certificate is a DOD-approved certificate authority. If the Arista network device does not obtain its public key certificates from an appropriate certificate policy through an approved service provider, this is a finding.

Fix: F-59584r882236_fix

Configure the Arista network device to obtain its public key certificates from an appropriate certificate policy through an approved service provider. Step 1: Configure the Arista network device by following the steps outlined in the Arista Military Unique Deployment Guide to generate the DOD PKI certificate signing request [switch.csr] for submission to DOD PKI CA. Example configuration: switch#security pki certificate generate signing-request key rsa1.key Common Name for use in subject: 192.168.25.26 Two-Letter Country Code for use in subject: US State for use in subject: AZ Locality Name for use in subject: Ft Huachuca Organization Name for use in subject: CONTRACTOR,PKI,DOD Organization Unit Name for use in subject: U.S. GOVERNMENT Email address for use in subject: IP addresses (space separated) for use in subject-alternative-name: 192.168.25.26 DNS names (space separated) for use in subject-alternative-name: Email addresses (space separated) for use in subject-alternative-name: -----BEGIN CERTIFICATE REQUEST----- MIIC6DCCAdACAQAwgYAxCzAJBgNVBAYTAlVTMQswCQYDVQQIDAJBWjEUMBIGA1UE BwwLRnQgSHVhY2h1Y2ExGzAZBgNVBAoMEkNPTlRSQUNUT1IsUEtJLERvRDEYMBYG A1UECwwPVS5TLiBHT1ZFUk5NRU5UMRcwFQYDVQQDDA4xOTIuMTY4LjI0MC4yMzCC i7TGBvhm5PTbfAzBma8/hSlsBGJ0qnOteb1Zaw== <Abbreviated Output Due to Size> -----END CERTIFICATE REQUEST----- Step 2: Once the DOD PKI signed certificates are received, CA Root Certificate and Intermediate Certificates obtained from CA must be uploaded onto the Arista network device directory of /certificate: The certificate's transfer can be accomplished by SCP or USB. The detail configuration can be found in the Arista Military Unique Deployment Guide in the section "Configuring RSA SecureID with OTP Management". The following commands copy the certificates using device USB1: to directory of the certificate: switch#copy usb1:Arista-23.pem certificate: Copy completed successfully. switch#copy usb1: CA-60.crt certificate: Copy completed successfully. switch#copy usb1: DODDISASWCA_60.crt certificate: Copy completed successfully. ! The following commands verify all three certificates are correctly copied to the certificate directory: switch#directory certificate switch#dir certificate: Directory of certificate:/ -rw- 2025 Aug 11 10:52 CA-60.crt -rw- 2110 Aug 11 10:52 ARISTA_SIGNING_CA.crt -rw- 1724 Aug 9 14:35 DODDISASWCA_60.crt -rw- 1722 Aug 12 09:38 arista-b64.cer -rw- 1696 Aug 12 14:35 Arista-23.pem -rw- 1696 Aug 12 14:36 intCert.pem ! The following commands configure the SSL-profile using the PKI certificates on the switch with the RSA SecureID server and trust chain: switch(config)#management security switch(config-mgmt-security)#ssl profile RSA01 switch(config-mgmt-sec-ssl-profile-RSA01)#tls versions 1.2 switch(config-mgmt-sec-ssl-profile-RSA01)#certificate Arista-23.pem key rsa1.key switch(config-mgmt-sec-ssl-profile-RSA01)#trust certificate Arista-23.pem switch(config-mgmt-sec-ssl-profile-RSA01)#trust certificate DODDISASWCA_60.crt switch(config-mgmt-sec-ssl-profile-RSA01)#chain certificate CA-60.cer switch(config-mgmt-sec-ssl-profile-RSA01)#show active management security ssl profile RSA01 tls versions 1.2 certificate Arista-23.pem.pem key rsa1.key trust certificate certificate Arista-23.pem trust certificate CA-60.cer trust certificate DODDISASWCA_60.crt chain certificate CA-60.crt radius-server tls ssl-profile RSA01 ! Step 3: Configure the switch RadSec Proxy server and RSA SecureID server IP address and RADIUS attribute configuration for ssl-profile RSA01. switch(config)#radius-server tls ssl-profile RSA01 switch(config)#radius-server host 192.168.16.102 key 7 09595D080D0C1453 switch(config)#radius-server host 192.168.16.55 key 7 120C161606020F45 switch(config)#radius-server host 192.168.16.55 tls switch(config)#aaa group server radius RADsecProxy server 192.168.16.55 tls ! Step 4: Configure the AAA authentication and authorization parameters for SSL-profile and RadSec Proxy Server. switch(config)#no aaa root switch(config)#aaa authorization policy local default-role aristaadmin switch(config)#logging level AAA informational switch(config)#aaa group server radius RADsecProxy server 192.168.16.55 tls switch(config)#aaa group server radius TIC1 server 192.168.16.103 switch(config)#aaa authentication login default local group RADsecProxy switch(config)#aaa authentication login console local switch(config)#aaa authentication policy on-success log switch(config)#aaa authentication policy on-failure log switch(config)#aaa authorization exec default local group RADsecProxy switch(config)#aaa authorization commands all default local switch(config)#aaa accounting commands all default start-stop logging group radius switch(config)#write ! Step 5: Verify the AAA configuration to ensure all parameters from the previous step are accurate with the following command: switch(config)#show running-config | section aaa no aaa root aaa authorization policy local default-role aristaadmin logging level AAA informational aaa group server radius RADsecProxy server 192.168.16.55 tls aaa group server radius TIC1 server 192.168.16.103 aaa authentication login default local group RADsecProxy aaa authentication login console local aaa authentication policy on-success log aaa authentication policy on-failure log aaa authorization exec default local group RADsecProxy aaa authorization commands all default local aaa accounting commands all default start-stop logging group radius ! switch#show aaa methods authentication Authentication method lists for LOGIN: name=default methods=local, group RADsecProxy name=login methods=local Authentication method list for ENABLE: name=default methods=local Authentication method list for DOT1X: name=default methods= ! switch##sh radius RADIUS server : 192.168.16.45, authentication port 1812, accounting port 1813 Messages sent: 10 Messages received: 10 Requests accepted: 9 Requests rejected: 1 Requests timeout: 0 Requests retransmitted: 0 Bad responses: 0 Connection errors: 0 DNS errors: 0 CoA request received: 0 DM request received: 0 CoA ack sent: 0 DM ack sent: 0 CoA Nak sent: 0 DM Nak sent: 0 RADIUS server-group: RSA1 0: 192.168.16.45, authentication port 1812, accounting port 1813 RADIUS server-group: TIC1 0: 192.168.16.103, authentication port 1812, accounting port 1813 Last time counters were cleared: never ! trust certificate Arista-23.pem switch#(config-mgmt-sec-ssl-profile-RSA1)#Aug 24 15:56:41 switch SuperServer: %SECURITY-3-SSL_PROFILE_VALID: SSL profile 'RSA01' is valid.

c
The Arista network Arista device must be configured to send log data to a central log server for the purpose of forwarding alerts to the administrators and the ISSO.
AU-9 - High - CCI-000163 - V-255966 - SV-255966r961863_rule
RMF Control
AU-9
Severity
High
CCI
CCI-000163
Version
ARST-ND-000850
Vuln IDs
  • V-255966
Rule IDs
  • SV-255966r961863_rule
The aggregation of log data kept on a syslog server can be used to detect attacks and trigger an alert to the appropriate security personnel. The stored log data can used to detect weaknesses in security that enable the network IA team to find and address these weaknesses before breaches can occur. Reviewing these logs, whether before or after a security breach, are important in showing whether someone is an internal employee or an outside threat. Satisfies: SRG-APP-000516-NDM-000350, SRG-APP-000119-NDM-000236, SRG-APP-000120-NDM-000237, SRG-APP-000515-NDM-000325
Checks: C-59642r882238_chk

Verify the Arista network device has been configured Syslog server for auditing data by using the following command: switch#show running-config | section logging logging host 192.168.16.30 514 ! If logging host is not configured to send log data to a central log server, this is a finding.

Fix: F-59585r882239_fix

The Arista network device must be configured for Syslog server for auditing data by using the following commands: switch(config)#logging host 192.168.16.30 514

c
The Arista network device must be running an operating system release that is currently supported by the vendor.
CM-6 - High - CCI-000366 - V-255967 - SV-255967r961863_rule
RMF Control
CM-6
Severity
High
CCI
CCI-000366
Version
ARST-ND-000860
Vuln IDs
  • V-255967
Rule IDs
  • SV-255967r961863_rule
Network devices running an unsupported operating system lack current security fixes required to mitigate the risks associated with recent vulnerabilities.
Checks: C-59643r882241_chk

Verify the Arista device is running a certified version of EOS from the Arista.com website on the Support/Software Download section. switch#show version Arista DCS-7280SRA-48C6-F Hardware version: 21.00 Serial number: SSJ18250372 Hardware MAC address: 7483.ef6d.86f7 System MAC address: 7483.ef6d.86f7 Software image version: 4.26.4M Architecture: i686 Internal build version: 4.26.4M-25280047.4264M Internal build ID: 79589245-f1f3-49b7-8bee-cbfacac004e6 Image format version: 1.0 Uptime: 2 weeks, 0 days, 9 hours and 53 minutes Total memory: 8098984 kB Free memory: 6155528 kB If the Arista network device is not running an operating system release that is currently supported by Arista Networks, this is a finding.

Fix: F-59586r882242_fix

Upgrade the Arista network device to an operating system that is supported by the vendor. Step 1: The Administrator would log on to www.arista.com/support/software-download website and choose EOS/Active Releases and choose appropriate version of EOS to download. Step 2: Transfer the EOS-4.x.yz.swi.sha512sum to Arista network device directory "flash:". Step 3: From the EOS CLI, type dir flash: to verify the file EOS-4.x.yz.swi.sha512sum is in the directory "flash:". switch#directory flash: EOS-4.x.yz.swi.sha512sum Step 4: Use the command verify to verify the checksum sha512sum: switch#verify flash: /sha512 flash:EOS-4.x.yz checksum should match Step 5: The file can also be verified from bash. switch#bash #bash # sha512sum /mnt/flash/EOS-4.x.yz *note the Arista network device would not run an invalid version of EOS and if the checksum does not match, contact an Arista Representative for assistance.