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68 lines
1.9 KiB
YAML
68 lines
1.9 KiB
YAML
id: audit_flags_fm_configure
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title: "Configure System to Audit All Changes of Object Attributes"
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discussion: |
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The audit system _MUST_ be configured to record enforcement actions of attempts to modify file attributes (fm).
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Enforcement actions are the methods or mechanisms used to prevent unauthorized changes to configuration settings. One common and effective enforcement action method is using access restrictions (i.e., modifications to a file by applying file permissions).
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This configuration ensures that audit lists include events in which enforcement actions attempts to modify a file.
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Without auditing the enforcement of access restrictions, it is difficult to identify attempted attacks, as there is no audit trail available for forensic investigation.
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check: |
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/usr/bin/awk -F':' '/^flags/ { print $NF }' /etc/security/audit_control | /usr/bin/tr ',' '\n' | /usr/bin/grep -Ec '^fm'
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result:
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integer: 1
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fix: |
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[source,bash]
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----
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/usr/bin/grep -qE "^flags.*fm" /etc/security/audit_control || /usr/bin/sed -i.bak '/^flags/ s/$/,fm/' /etc/security/audit_control;/usr/sbin/audit -s
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----
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references:
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cce:
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- CCE-92719-4
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cci:
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- CCI-000172
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- CCI-001814
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800-53r5:
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- AC-2(12)
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- AU-12
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- AU-2
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- AU-9
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- CM-5(1)
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- MA-4(1)
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800-53r4:
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- AU-2
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- AU-12
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- AU-9
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- CM-5(1)
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- MA-4(1)
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srg:
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- SRG-OS-000064-GPOS-00033
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- SRG-OS-000365-GPOS-00152
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- SRG-OS-000458-GPOS-00203
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- SRG-OS-000461-GPOS-00205
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- SRG-OS-000463-GPOS-00207
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- SRG-OS-000465-GPOS-00209
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- SRG-OS-000466-GPOS-00210
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- SRG-OS-000467-GPOS-00211
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- SRG-OS-000468-GPOS-00212
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- SRG-OS-000474-GPOS-00219
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disa_stig:
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- N/A
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800-171r2:
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- N/A
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cmmc:
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- AU.L2-3.3.3
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- AU.L2-3.3.6
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- AU.L2-3.3.8
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- SI.L2-3.14.3
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macOS:
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- "14.0"
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tags:
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- cnssi-1253_moderate
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- cnssi-1253_low
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- cnssi-1253_high
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- cmmc_lvl2
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severity: "medium"
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mobileconfig: false
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mobileconfig_info: |