Network devices STIGs
CAT II 34
Any vulnerability, the exploitation of which has a potential to result in loss of confidentiality, availability or integrity.
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The Cisco router must be configured to limit the number of concurrent management sessions to an organization-defined number.
Maps to AC-10 via CCI-000054Check
Note: This requirement is not applicable to file transfer actions such as FTP, SCP, and SFTP. Review the router configuration to determine if concurrent management sessions are limited as shown in the example below: ip http secure-server ip http max-connections 2 … … … For platforms that support the session-limit command: line vty 0 4 session-limit 2 transport input ssh For those platforms that do not support the session-limit command, the sessions can also be limited by reducing the number of active vty lines as shown in the example below. line vty 0 1 transport input ssh line vty 2 4 transport input none If the router is not configured to limit the number of concurrent management sessions, this is a finding.
Fix
Configure the router to limit the number of concurrent management sessions to an organization-defined number as shown in the example below. R4(config)#ip http max-connections 2 R4(config)#line vty 0 1 R4(config-line)#transport input ssh R4(config-line)#exit R4(config)#line vty 2 4 R4(config-line)# transport input none R4(config-line)#end To configure session limiting, use the example below. R4(config)#line vty 0 4 R4(config-line)#session-limit 2 R4(config-line)#transport input ssh
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The Cisco router must be configured to automatically audit account creation.
Maps to AC-2(4) via CCI-000018Check
Review the router configuration to determine if it automatically audits account creation. The configuration should look similar to the example below: archive log config logging enable Note: Configuration changes can be viewed using the show archive log config all command. If account creation is not automatically audited, this is a finding.
Fix
Configure the router to log account creation using the following commands: R4(config)#archive R4(config-archive)#log config R4(config-archive-log-cfg)#logging enable R4(config-archive-log-cfg)#logging size 1000 R4(config-archive-log-cfg)#notify syslog contenttype plaintext R4(config-archive-log-cfg)#hidekeys R4(config-archive-log-cfg)#end
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The Cisco router must be configured to automatically audit account modification.
Maps to AC-2(4) via CCI-001403Check
Review the router configuration to determine if it automatically audits account modification. The configuration should look similar to the example below: archive log config logging enable Note: Configuration changes can be viewed using the show archive log config all command. If account modification is not automatically audited, this is a finding.
Fix
Configure the router to log account modification using the following commands: R4(config)#archive R4(config-archive)#log config R4(config-archive-log-cfg)#logging enable R4(config-archive-log-cfg)#logging size 1000 R4(config-archive-log-cfg)#notify syslog contenttype plaintext R4(config-archive-log-cfg)#hidekeys R4(config-archive-log-cfg)#end
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The Cisco router must be configured to automatically audit account disabling actions.
Maps to AC-2(4) via CCI-001404Check
Review the router configuration to determine if it automatically audits account disabling. The configuration should look similar to the example below: archive log config logging enable Note: Configuration changes can be viewed using the show archive log config all command. If account disabling is not automatically audited, this is a finding.
Fix
Configure the router to log account disabling using the following commands: R4(config)#archive R4(config-archive)#log config R4(config-archive-log-cfg)#logging enable R4(config-archive-log-cfg)#logging size 1000 R4(config-archive-log-cfg)#notify syslog contenttype plaintext R4(config-archive-log-cfg)#hidekeys R4(config-archive-log-cfg)#end
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The Cisco router must be configured to automatically audit account removal actions.
Maps to AC-2(4) via CCI-001405Check
Review the router configuration to determine if it automatically audits account removal. The configuration should look similar to the example below: archive log config logging enable Note: Configuration changes can be viewed using the show archive log config all command. If account removal is not automatically audited, this is a finding.
Fix
Configure the router to log account removal using the following commands: R4(config)#archive R4(config-archive)#log config R4(config-archive-log-cfg)#logging enable R4(config-archive-log-cfg)#logging size 1000 R4(config-archive-log-cfg)#notify syslog contenttype plaintext R4(config-archive-log-cfg)#hidekeys R4(config-archive-log-cfg)#end
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The Cisco router must be configured to enforce approved authorizations for controlling the flow of management information within the device based on control policies.
Check
Review the Cisco router configuration to verify that it is compliant with this requirement. Step 1: Verify that the line vty has an ACL inbound applied as shown in the example below. line vty 0 1 access-class MANAGEMENT_NET in transport input ssh Step 2: Verify that the ACL permits only hosts from the management network to access the router. ip access-list extended MANAGEMENT_NET permit ip x.x.x.0 0.0.0.255 any deny ip any any log-input If the Cisco router 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
Configure the Cisco router to restrict management access to specific IP addresses via SSH as shown in the example below. SW2(config)#ip access-list standard MANAGEMENT_NET SW2(config-std-nacl)#permit x.x.x.0 0.0.0.255 SW2(config-std-nacl)#exit SW2(config)#line vty 0 1 SW2(config-line)#transport input ssh SW2(config-line)#access-class MANAGEMENT_NET in SW2(config-line)#end
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The Cisco router must be configured to enforce the limit of three consecutive invalid logon attempts, after which time it must lock out the user account from accessing the device for 15 minutes.
Maps to AC-7 via CCI-000044Check
Review the Cisco router configuration to verify that it enforces the limit of three consecutive invalid logon attempts as shown in the example below. login block-for 900 attempts 3 within 120 Note: The configuration example above will block any login attempt for 15 minutes after three consecutive invalid logon attempts within a two-minute period. If the Cisco router is not configured to enforce the limit of three consecutive invalid logon attempts, this is a finding.
Fix
Configure the Cisco router to enforce the limit of three consecutive invalid logon attempts as shown in the example below. R2(config)#login block-for 900 attempts 3 within 120
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The Cisco router must be configured to display the Standard Mandatory DoD Notice and Consent Banner before granting access to the device.
Maps to AC-8 via CCI-000048Check
Review the Cisco router configuration to verify that it is compliant with this requirement as shown in the example below. banner login ^C 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. ^C If the Cisco router is not configured to display the Standard Mandatory DoD Notice and Consent Banner before granting access to the device, this is a finding.
Fix
Configure the Cisco router to display the Standard Mandatory DoD Notice and Consent Banner before granting access as shown in the following example: R1(config)#banner login # Enter TEXT message. End with the character '#'. 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. # R1(config)#end
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The Cisco device must be configured to audit all administrator activity.
Check
Review the Cisco router configuration to verify that it is compliant with this requirement as shown in the example below. hostname R1 ! logging userinfo ! … … … archive log config logging enable ! Note: The logging userinfo global configuration command will generate a log when a user increases his or her privilege level. If logging of administrator activity is not configured, this is a finding.
Fix
Configure the router to log administrator activity as shown in the example below. R1(config)#logging userinfo R1(config)#archive R1(config-archive)#log config R1(config-archive-log-cfg)#logging enable R1(config-archive-log-cfg)#logging size 1000 R1(config-archive-log-cfg)#notify syslog contenttype plaintext R1(config-archive-log-cfg)#hidekeys R1(config-archive-log-cfg)#end
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The Cisco router must produce audit records containing information to establish when (date and time) the events occurred.
Maps to AU-3 via CCI-000131Check
Verify that the router is configured to include the date and time on all log records as shown in the configuration example below. service timestamps log datetime localtime If time stamps are not configured, this is a finding.
Fix
Configure the router to include the date and time on all log records as shown in the example below. R1(config)#service timestamps log datetime localtime
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The Cisco router must produce audit records containing information to establish where the events occurred.
Maps to AU-3 via CCI-000132Check
Review the deny statements in all interface ACLs to determine if the log-input parameter has been configured as shown in the example below. Note: log-input can only apply to interface bound ACLs. ip access-list extended BLOCK_INBOUND deny icmp any any log-input If the router is not configured with the log-input parameter after any deny statements to note where packets have been dropped via an ACL, this is a finding.
Fix
Configure the log-input parameter after any deny statements to provide the location as to where packets have been dropped via an ACL. R1(config)#ip access-list extended BLOCK_INBOUND R1(config-ext-nacl)#deny icmp any any log-input
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The Cisco router must be configured to generate audit records containing the full-text recording of privileged commands.
Maps to AU-3(1) via CCI-000135Check
Review the Cisco router configuration to verify that it is compliant with this requirement. The configuration example below will log all configuration changes. archive log config logging enable Note: Configuration changes can be viewed using the show archive log config all command. If the Cisco router is not configured to generate audit records of configuration changes, this is a finding.
Fix
Configure the Cisco router to log all configuration changes as shown in the example below. R4(config)#archive R4(config-archive)#log config R4(config-archive-log-cfg)#logging enable R4(config-archive-log-cfg)#logging size 1000 R4(config-archive-log-cfg)#notify syslog contenttype plaintext R4(config-archive-log-cfg)#hidekeys R4(config-archive-log-cfg)#end
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The Cisco router must be configured to protect audit information from unauthorized modification.
Maps to AU-9 via CCI-000163Check
Review the Cisco router configuration to verify that it is compliant with this requirement. Step 1: If persistent logging is enabled as shown in the example below, go to step 2. Otherwise, this requirement is not applicable. logging persistent url disk0:/logfile size 134217728 filesize 16384 Step 2: Verify that the router is not configured with a privilege level other than "15" to allow access to the file system as shown in the example below. file privilege 10 Note: The default privilege level required for access to the file system is "15"; hence, the command file privilege "15" will not be shown in the configuration. If the router is configured with a privilege level other than "15" to allow access to the file system, this is a finding.
Fix
If persistent logging is enabled, configure the router to only allow administrators with privilege level "15" access to the file system as shown in the example below. R4(config)#file privilege 15
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The Cisco router must be configured to protect audit information from unauthorized deletion.
Maps to AU-9 via CCI-000164Check
Review the Cisco router configuration to verify that it is compliant with this requirement. Step 1: If persistent logging is enabled as shown in the example below, go to step 2. Otherwise, this requirement is not applicable. logging persistent url disk0:/logfile size 134217728 filesize 16384 Step 2: Verify that the router is not configured with a privilege level other than "15" to allow access to the file system as shown in the example below. file privilege 10 Note: The default privilege level required for access to the file system is "15"; hence, the command file privilege "15" will not be shown in the configuration. If the router is configured with a privilege level other than "15" to allow access to the file system, this is a finding.
Fix
If persistent logging is enabled, configure the router to only allow administrators with privilege level "15" access to the file system as shown in the example below. R4(config)#file privilege 15
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The Cisco router must be configured to limit privileges to change the software resident within software libraries.
Maps to CM-5(6) via CCI-001499Check
Verify that the router is not configured with a privilege level other than "15" to allow access to the file system as shown in the example below. file privilege 10 Note: The default privilege level required for access to the file system is "15"; hence, the command file privilege "15" will not be shown in the configuration. If the router is configured with a privilege level other than "15" to allow access to the file system, this is a finding.
Fix
Configure the router to only allow administrators with privilege level "15" access to the file system as shown in the example below. R4(config)#file privilege 15
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The Cisco router 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.
Check
Step 1: Review the Cisco router configuration to verify that a local account for last resort has been configured. username xxxxxxxxxxx privilege nn common-criteria-policy PASSWORD_POLICY password xxxxxxxxxx Note: The configured Common Criteria policy must be used when creating or changing the local account password as shown in the example above. Step 2: Verify that local is defined after radius or tacas+ in the authentication order as shown in the example below. aaa authentication login default group tacacs+ local If the Cisco router is not configured with only one local account to be used as the account of last resort in the event the authentication server is unavailable, this is a finding.
Fix
Step 1: Configure a local account as shown in the example below. R2(config)#username xxxxxxxxx privilege nn secret xxxxxxx Step 2: Configure the authentication order to use the local account if the authentication server is not reachable as shown in the following example: R2(config)#aaa authentication login default group tacacs+ local
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The Cisco router must be configured to enforce a minimum 15-character password length.
Maps to IA-5(1) via CCI-004066, CCI-000205Check
Review the Cisco router configuration to verify that it is compliant with this requirement as shown in the example below. aaa new-model ! ! aaa common-criteria policy PASSWORD_POLICY min-length 15 If the Cisco router is not configured to enforce a minimum 15-character password length, this is a finding.
Fix
Configure the Cisco router to enforce a minimum 15-character password length as shown in the example below. R1(config)#aaa common-criteria policy PASSWORD_POLICY R1(config-cc-policy)#min-length 15 R1(config-cc-policy)#exit
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The Cisco router must be configured to enforce password complexity by requiring that at least one uppercase character be used.
Maps to IA-5(1) via CCI-004066, CCI-000192Check
Review the Cisco router configuration to verify that it is compliant with this requirement as shown in the example below. aaa new-model ! ! aaa common-criteria policy PASSWORD_POLICY upper-case 1 If the Cisco router is not configured to enforce password complexity by requiring that at least one uppercase character be used, this is a finding.
Fix
Configure the Cisco router to enforce password complexity by requiring that at least one uppercase character be used as shown in the example below. R1(config)#aaa common-criteria policy PASSWORD_POLICY R1(config-cc-policy)#upper-case 1 R1(config-cc-policy)#exit
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The Cisco router must be configured to enforce password complexity by requiring that at least one lowercase character be used.
Maps to IA-5(1) via CCI-004066, CCI-000193Check
Review the Cisco router configuration to verify that it is compliant with this requirement as shown in the example below. aaa new-model ! ! aaa common-criteria policy PASSWORD_POLICY lower-case 1 If the Cisco router is not configured to enforce password complexity by requiring that at least one lowercase character be used, this is a finding.
Fix
Configure the Cisco router to enforce password complexity by requiring that at least one lowercase character be used as shown in the example below. R1(config)#aaa common-criteria policy PASSWORD_POLICY R1(config-cc-policy)#lower-case 1 R1(config-cc-policy)#exit
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The Cisco router must be configured to enforce password complexity by requiring that at least one numeric character be used.
Maps to IA-5(1) via CCI-004066, CCI-000194Check
Review the Cisco router configuration to verify that it is compliant with this requirement as shown in the example below. aaa new-model ! ! aaa common-criteria policy PASSWORD_POLICY numeric-count 1 If the Cisco router is not configured to enforce password complexity by requiring that at least one numeric character be used, this is a finding.
Fix
Configure the Cisco router to enforce password complexity by requiring that at least one numeric character be used as shown in the example below. R1(config)#aaa common-criteria policy PASSWORD_POLICY R1(config-cc-policy)#numeric-count 1 R1(config-cc-policy)#exit
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The Cisco router must be configured to enforce password complexity by requiring that at least one special character be used.
Maps to IA-5(1) via CCI-004066, CCI-001619Check
Review the Cisco router configuration to verify that it is compliant with this requirement as shown in the example below. aaa new-model ! ! aaa common-criteria policy PASSWORD_POLICY special-case 1 If the Cisco router is not configured to enforce password complexity by requiring that at least one special character be used, this is a finding.
Fix
Configure the Cisco router to enforce password complexity by requiring that at least one special character be used as shown in the example below. R1(config)#aaa common-criteria policy PASSWORD_POLICY R1(config-cc-policy)#special-case 1 R1(config-cc-policy)#exit
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The Cisco router must be configured to require that when a password is changed, the characters are changed in at least eight of the positions within the password.
Maps to IA-5(1) via CCI-004066, CCI-000195Check
Review the Cisco router configuration to verify that it is compliant with this requirement as shown in the example below. aaa new-model ! ! aaa common-criteria policy PASSWORD_POLICY char-changes 8 If the Cisco router is not configured to require that when a password is changed, the characters are changed in at least eight of the positions within the password, this is a finding.
Fix
Configure the Cisco router to enforce password complexity by requiring that when a password is changed, the characters are changed in at least eight of the positions within the password as shown in the example below. R1(config)#aaa common-criteria policy PASSWORD_POLICY R1(config-cc-policy)#char-changes 8 R1(config-cc-policy)#exit
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The Cisco router must be configured to automatically audit account enabling actions.
Maps to AC-2(4) via CCI-002130Check
Review the router configuration to determine if it automatically audits account enabling. The configuration should look similar to the example below: archive log config logging enable Note: Configuration changes can be viewed using the show archive log config all command. If account enabling is not automatically audited, this is a finding.
Fix
Configure the router to log account enabling using the following commands: R4(config)#archive R4(config-archive)#log config R4(config-archive-log-cfg)#logging enable R4(config-archive-log-cfg)#logging size 1000 R4(config-archive-log-cfg)#notify syslog contenttype plaintext R4(config-archive-log-cfg)#hidekeys R4(config-archive-log-cfg)#end
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The Cisco router must be configured to allocate audit record storage capacity in accordance with organization-defined audit record storage requirements.
Maps to AU-4 via CCI-001849Check
Verify that the Cisco router is configured with a logging buffer size. The configuration should look like the example below: logging buffered xxxxxxxx informational If a logging buffer size is not configured, this is a finding. If the Cisco router is not configured to allocate audit record storage capacity in accordance with organization-defined audit record storage requirements, this is a finding.
Fix
Configure the buffer size for logging as shown in the example below. R2(config)#logging buffered xxxxxxxx informational
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The Cisco router must be configured to generate an alert for all audit failure events.
Check
Review the Cisco router configuration to verify that it is compliant with this requirement as shown in the example below. logging trap critical Note: The parameter "critical" can replaced with a lesser severity level (i.e. error, warning, notice, informational). Informational is the default severity level; hence, if the severity level is configured to informational, the logging trap command will not be shown in the configuration. If the Cisco router is not configured to generate an alert for all audit failure events, this is a finding.
Fix
Configure the Cisco router to send critical to emergency log messages to the syslog server as shown in the example below. R4(config)#logging trap critical Note: The parameter "critical" can replaced with a lesser severity level (i.e., error, warning, notice, informational).
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The Cisco router must be configured to synchronize its clock with the primary and secondary time sources using redundant authoritative time sources.
Maps to AU-8, AU-8(2), SC-45, SC-45(1), SC-45(2) via CCI-001889, CCI-001890, CCI-004928, CCI-004922, CCI-004923, CCI-001893Check
Review the Cisco router configuration to verify that it is compliant with this requirement as shown in the configuration example below. ntp server x.x.x.x ntp server y.y.y.y If the Cisco router is not configured to synchronize its clock with redundant authoritative time sources, this is a finding.
Fix
Configure the Cisco router to synchronize its clock with redundant authoritative time sources as shown in the example below. R2(config)#ntp server x.x.x.x R2(config)#ntp server y.y.y.y
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The Cisco router must be configured to authenticate SNMP messages using a FIPS-validated Keyed-Hash Message Authentication Code (HMAC).
Maps to IA-3(1) via CCI-001967Check
Review the Cisco router configuration to verify that it is compliant with this requirement as shown in the example below. snmp-server group V3GROUP v3 auth read V3READ write V3WRITE snmp-server host x.x.x.x version 3 auth V3USER Authentication used by the SNMP users can be viewed via the show snmp user command as shown in the example below: R4#show snmp user User name: V3USER Engine ID: 800000090300C2042B540000 storage-type: nonvolatile active Authentication Protocol: SHA Privacy Protocol: None Group-name: V3GROUP If the Cisco router is not configured to authenticate SNMP messages using a FIPS-validated HMAC, this is a finding.
Fix
Configure the Cisco router to authenticate SNMP messages as shown in the example below: R4(config)#snmp-server group V3GROUP v3 auth read V3READ write V3WRITE R4(config)#snmp-server user V3USER V3GROUP v3 auth sha xxxxxxx R4(config)#snmp-server host x.x.x.x version 3 auth V3USER
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The Cisco router must be configured to encrypt SNMP messages using a FIPS 140-2 approved algorithm.
Maps to AC-17(2) via CCI-000068Check
Review the Cisco router configuration to verify that it is compliant with this requirement as shown in the example below. snmp-server group V3GROUP v3 priv read V3READ write V3WRITE snmp-server view V3READ iso included snmp-server view V3WRITE iso included snmp-server host x.x.x.x version 3 auth V3USER Encryption used by the SNMP users can be viewed via the show snmp user command as shown in the example below. R4#show snmp user User name: V3USER Engine ID: 800000090300C2042B540000 storage-type: nonvolatile active Authentication Protocol: SHA Privacy Protocol: AES256 Group-name: V3GROUP If the Cisco router is not configured to encrypt SNMP messages using a FIPS 140-2 approved algorithm, this is a finding.
Fix
Configure the Cisco router to encrypt SNMP messages using a FIPS 140-2 approved algorithm as shown in the example below. R4(config)#snmp-server group V3GROUP v3 priv read V3READ write V3WRITE R4(config)#snmp-server user V3USER V3GROUP v3 auth sha xxxxxx priv aes 256 xxxxxx
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The Cisco router must be configured to authenticate Network Time Protocol (NTP) sources using authentication that is cryptographically based.
Maps to IA-3(1) via CCI-001967Check
Review the Cisco router configuration to verify that it is compliant with this requirement as shown in the configuration example below. ntp authentication-key 1 hmac-sha2-256 xxxxxx ntp authenticate ntp trusted-key 1 ntp server x.x.x.x key 1 ntp server y.y.y.y key 1 If the Cisco router is not configured to authenticate NTP sources using authentication that is cryptographically based, this is a finding.
Fix
Configure the Cisco router to authenticate NTP sources using authentication that is cryptographically based as shown in the example below. R2(config)#ntp authenticate R2(config)#ntp authentication-key 1 hmac-sha2-256 xxxxxxx R2(config)#ntp trusted-key 1 R2(config)#ntp server x.x.x.x key 1 R2(config)#ntp server y.y.y.y key 1
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The Cisco router must be configured to generate log records when administrator privileges are deleted.
Maps to AU-12 via CCI-000172Check
Review the Cisco router configuration to verify that it is compliant with this requirement as shown in the example below. archive log config logging enable If the Cisco router is not configured to generate log records when administrator privileges are deleted, this is a finding.
Fix
Configure the Cisco router to generate log records when administrator privileges are deleted as shown in the example below. R4(config)#archive R4(config-archive)#log config R4(config-archive-log-cfg)#logging enable R4(config-archive-log-cfg)#logging size 1000 R4(config-archive-log-cfg)#notify syslog contenttype plaintext R4(config-archive-log-cfg)#hidekeys R4(config-archive-log-cfg)#end
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The Cisco router must be configured to generate audit records when successful/unsuccessful logon attempts occur.
Maps to AU-12 via CCI-000172Check
Review the Cisco router configuration to verify that it is compliant with this requirement as shown in the examples below. login on-failure log login on-success log If the Cisco router is not configured to generate audit records when successful/unsuccessful logon attempts occur, this is a finding.
Fix
Configure the Cisco router to generate audit records when successful/unsuccessful logon attempts occur as shown in the example below. R5(config)#login on-failure log R5(config)#login on-success log
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The Cisco router must be configured to generate log records for privileged activities.
Maps to AU-12 via CCI-000172Check
Review the Cisco router configuration to verify that it is compliant with this requirement as shown in the example configurations below. archive log config logging enable If the Cisco router is not configured to generate log records for privileged activities, this is a finding.
Fix
Configure the Cisco router to generate log records for privileged activities as shown in the example below. R4(config)#archive R4(config-archive)#log config R4(config-archive-log-cfg)#logging enable R4(config-archive-log-cfg)#logging size 1000 R4(config-archive-log-cfg)#notify syslog contenttype plaintext R4(config-archive-log-cfg)#hidekeys R4(config-archive-log-cfg)#end
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The Cisco router must be configured to back up the configuration when changes occur.
Check
Review the Cisco router configuration to verify that it is compliant with this requirement. The example configuration below will send the configuration to a SCP server when a configuration change occurs. event manager applet BACKUP_CONFIG event syslog pattern "%SYS-5-CONFIG_I" action 1 info type routername action 2 cli command "enable" action 3 cli command "copy run scp" pattern "remote host" action 4 cli command "x.x.x.x" pattern "filename" action 5 cli command "$_info_routername-config" action 6 syslog priority informational msg "Configuration backup was executed" If the Cisco router is not configured to conduct backups of the configuration when changes occur, this is a finding.
Fix
Configure the Cisco router to send the configuration to a SCP server when a configuration change occurs as shown in the example below. R4(config)#event manager applet BACKUP_CONFIG R4(config-applet)#event syslog pattern "%SYS-5-CONFIG_I" R4(config-applet)#action 1 cli command "enable" R4(config-applet)#action 2 info type routername R4(config-applet)#action 3 cli command "copy run scp" pattern "remote host" R4(config-applet)#action 4 cli command "x.x.x.x" pattern "filename" R4(config-applet)#action 5 cli command "$_info_routername-config" R4(config-applet)#action 6 syslog priority informational msg "Configuration backup was executed" R4(config-applet)#end
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The Cisco router must be configured to obtain its public key certificates from an appropriate certificate policy through an approved service provider.
Maps to SC-17 via CCI-001159, CCI-004909Check
Review the router configuration to determine if a CA trust point has been configured. The CA trust point will contain the URL of the CA in which the router has enrolled with. Verify this is a DOD or DOD-approved CA. This will ensure the router has enrolled and received a certificate from a trusted CA. The CA trust point configuration would look similar to the example below. crypto pki trustpoint CA_X enrollment url http://trustpoint1.example.com Note: A remote end-point's certificate will always be validated by the router by verifying the signature of the CA on the certificate using the CA's public key, which is contained in the router's certificate it received at enrollment. Note: This requirement is not applicable if the router does not have any public key certificates. If the Cisco router is not configured to obtain its public key certificates from an appropriate certificate policy through an approved service provider, this is a finding.
Fix
Configure the router to obtain its public key certificates from an appropriate certificate policy through an approved service provider as shown in the example below. R2(config)# crypto pki trustpoint CA_X R2(ca-trustpoint)#enrollment url http://trustpoint1.example.com