/
3_Security_Remediation.sh
executable file
·1090 lines (1015 loc) · 48.8 KB
/
3_Security_Remediation.sh
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
#!/bin/bash
####################################################################################################
#
# Copyright (c) 2017, Jamf, LLC. All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:
# * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# * Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
# * Neither the name of the JAMF Software, LLC nor the
# names of its contributors may be used to endorse or promote products
# derived from this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY JAMF SOFTWARE, LLC "AS IS" AND ANY
# EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
# DISCLAIMED. IN NO EVENT SHALL JAMF SOFTWARE, LLC BE LIABLE FOR ANY
# DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
# (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
# SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#
####################################################################################################
# written by Katie English, Jamf October 2016
# updated for 10.12 CIS benchmarks by Katie English, Jamf February 2017
# updated by Laurent Pertois, Jamf September 2018
# github.com/jamfprofessionalservices
# USAGE
# Reads from plist at /Library/Application Support/SecurityScoring/org_security_score.plist by default.
# For "true" items, runs query for current computer/user compliance.
# Non-compliant items are logged to /Library/Application Support/SecurityScoring/org_audit
plistlocation="/Library/Application Support/SecurityScoring/org_security_score.plist"
currentUser=$( ls -l /dev/console | cut -d " " -f4 )
hardwareUUID=$(/usr/sbin/system_profiler SPHardwareDataType | grep "Hardware UUID" | awk -F ": " '{print $2}' | xargs)
macos_version=$(sw_vers -productVersion)
os_vers=( ${macos_version//./ } )
os_vers_major="${os_vers[0]}"
os_vers_minor="${os_vers[1]}"
logFile="/Library/Application Support/SecurityScoring/remediation.log"
echo $(date -u) "Beginning remediation" > "$logFile"
if [[ ! -e $plistlocation ]]; then
echo "No scoring file present"
exit 0
fi
# 1.1 Verify all Apple provided software is current
# Verify organizational score
Audit1_1="$(defaults read "$plistlocation" OrgScore1_1)"
# If organizational score is 1 or true, check status of client
# If client fails, then remediate
if [ "$Audit1_1" = "1" ]; then
echo $(date -u) "Checking 1.1" | tee -a "$logFile"
countAvailableSUS="$(softwareupdate -l | grep "*" | wc -l | tr -d ' ')"
if [ "$countAvailableSUS" = "0" ]; then
echo $(date -u) "1.1 passed" | tee -a "$logFile"; else
# NOTE: INSTALLS ALL RECOMMENDED SOFTWARE UPDATES FROM CLIENT'S CONFIGURED SUS SERVER
softwareupdate -i -r
fi
fi
# 1.2 Enable Auto Update
# Verify organizational score
Audit1_2="$(defaults read "$plistlocation" OrgScore1_2)"
# If organizational score is 1 or true, check status of client
# If client fails, then remediate
if [ "$Audit1_2" = "1" ]; then
echo $(date -u) "Checking 1.2" | tee -a "$logFile"
automaticUpdates="$(defaults read /Library/Preferences/com.apple.SoftwareUpdate AutomaticCheckEnabled)"
if [ "$automaticUpdates" = "1" ]; then
echo $(date -u) "1.2 passed" | tee -a "$logFile"; else
defaults write /Library/Preferences/com.apple.SoftwareUpdate AutomaticCheckEnabled -int 1
echo $(date -u) "1.2 remediated" | tee -a "$logFile"
fi
fi
# 1.3 Enable app update installs
# Verify organizational score
Audit1_3="$(defaults read "$plistlocation" OrgScore1_3)"
# If organizational score is 1 or true, check status of client
# If client fails, then remediate
if [ "$Audit1_3" = "1" ]; then
echo $(date -u) "Checking 1.3" | tee -a "$logFile"
automaticAppUpdates="$(defaults read /Library/Preferences/com.apple.commerce AutoUpdate)"
if [ "$automaticAppUpdates" = "1" ]; then
echo $(date -u) "1.3 passed" | tee -a "$logFile"; else
defaults write /Library/Preferences/com.apple.commerce AutoUpdate -bool true
echo $(date -u) "1.3 remediated" | tee -a "$logFile"
fi
fi
# 1.4 Enable system data files and security update installs
# Verify organizational score
Audit1_4="$(defaults read "$plistlocation" OrgScore1_4)"
# If organizational score is 1 or true, check status of client
# If client fails, then remediate
if [ "$Audit1_4" = "1" ]; then
echo $(date -u) "Checking 1.4" | tee -a "$logFile"
criticalUpdates="$(defaults read /Library/Preferences/com.apple.SoftwareUpdate ConfigDataInstall)"
if [ "$criticalUpdates" = "1" ]; then
echo $(date -u) "1.4 passed" | tee -a "$logFile"; else
defaults write /Library/Preferences/com.apple.SoftwareUpdate ConfigDataInstall -bool true
defaults write /Library/Preferences/com.apple.SoftwareUpdate CriticalUpdateInstall -bool true
echo $(date -u) "1.4 remediated" | tee -a "$logFile"
fi
fi
# 1.5 Enable OS X update installs
# Verify organizational score
Audit1_5="$(defaults read "$plistlocation" OrgScore1_5)"
# If organizational score is 1 or true, check status of client
# If client fails, then remediate
if [ "$Audit1_5" = "1" ]; then
echo $(date -u) "Checking 1.5" | tee -a "$logFile"
updateRestart="$(defaults read /Library/Preferences/com.apple.commerce AutoUpdateRestartRequired)"
if [ "$updateRestart" = "1" ]; then
echo $(date -u) "1.5 passed" | tee -a "$logFile"; else
defaults write /Library/Preferences/com.apple.commerce AutoUpdateRestartRequired -bool true
echo $(date -u) "1.5 remediated" | tee -a "$logFile"
fi
fi
# 2.1.1 Turn off Bluetooth, if no paired devices exist
# Verify organizational score
Audit2_1_1="$(defaults read "$plistlocation" OrgScore2_1_1)"
# If organizational score is 1 or true, check status of client
# If client fails, then remediate
if [ "$Audit2_1_1" = "1" ]; then
echo $(date -u) "Checking 2.1.1" | tee -a "$logFile"
btPowerState="$(defaults read /Library/Preferences/com.apple.Bluetooth ControllerPowerState)"
if [ "$btPowerState" = "0" ]; then
echo $(date -u) "2.1.1 passed" | tee -a "$logFile"; else
connectable=$( system_profiler SPBluetoothDataType | grep Connectable | awk '{print $2}' | head -1 )
echo $(date -u) "2.1.1 remediated" | tee -a "$logFile"
if [ "$connectable" = "Yes" ]
then
echo $(date -u) "2.1.1 passed" | tee -a "$logFile"; else
defaults write /Library/Preferences/com.apple.Bluetooth ControllerPowerState -int 0
killall -HUP blued
echo $(date -u) "2.1.1 remediated" | tee -a "$logFile"
fi
fi
fi
# 2.1.3 Show Bluetooth status in menu bar
# Verify organizational score
Audit2_1_3="$(defaults read "$plistlocation" OrgScore2_1_3)"
# If organizational score is 1 or true, check status of client
# If client fails, then remediate
if [ "$Audit2_1_3" = "1" ]; then
echo $(date -u) "Checking 2.1.3" | tee -a "$logFile"
btMenuBar="$(defaults read /Users/"$currentUser"/Library/Preferences/com.apple.systemuiserver menuExtras | grep -c Bluetooth.menu)"
if [ "$btMenuBar" -gt "0" ]; then
echo $(date -u) "2.1.3 passed" | tee -a "$logFile"; else
open "/System/Library/CoreServices/Menu Extras/Bluetooth.menu"
echo $(date -u) "2.1.3 remediated" | tee -a "$logFile"
fi
fi
# 2.2.2 Ensure time set is within appropriate limits
# Not audited - only enforced if identified as priority
# Verify organizational score
Audit2_2_2="$(defaults read "$plistlocation" OrgScore2_2_2)"
# If organizational score is 1 or true, check status of client
if [ "$Audit2_2_2" = "1" ]; then
echo $(date -u) "Checking 2.2.2" | tee -a "$logFile"
timeServer=$(systemsetup -getnetworktimeserver | awk '{print $4}')
ntpdate -sv "$timeServer"
echo $(date -u) "2.2.2 enforced" | tee -a "$logFile"
fi
# 2.2.3 Restrict NTP server to loopback interface
# Verify organizational score
Audit2_2_3="$(defaults read "$plistlocation" OrgScore2_2_3)"
# If organizational score is 1 or true, check status of client
# If client fails, then remediate
if [ "$Audit2_2_3" = "1" ]; then
echo $(date -u) "Checking 2.2.3" | tee -a "$logFile"
restrictNTP=$(cat /etc/ntp-restrict.conf | grep -c "restrict lo")
if [ "$restrictNTP" = "0" ]; then
cp /etc/ntp-restrict.conf /etc/ntp-restrict_old.conf
echo -n "restrict lo interface ignore wildcard interface listen lo" >> /etc/ntp-restrict.conf
echo $(date -u) "2.2.3 remediated" | tee -a "$logFile"; else
echo $(date -u) "2.2.3 passed" | tee -a "$logFile"
fi
fi
# 2.3.1 Set an inactivity interval of 20 minutes or less for the screen saver
# Verify organizational score
Audit2_3_1="$(defaults read "$plistlocation" OrgScore2_3_1)"
# If organizational score is 1 or true, check status of client
# If client fails, then remediate
if [ "$Audit2_3_1" = "1" ]; then
echo $(date -u) "Checking 2.3.1" | tee -a "$logFile"
screenSaverTime="$(defaults read /Users/"$currentUser"/Library/Preferences/ByHost/com.apple.screensaver."$hardwareUUID" idleTime)"
if [ "$screenSaverTime" -le "1200" ]; then
echo $(date -u) "2.3.1 passed" | tee -a "$logFile"; else
defaults write /Users/"$currentUser"/Library/Preferences/ByHost/com.apple.screensaver."$hardwareUUID".plist idleTime -int 1200
chown "$currentUser":staff /Users/"$currentUser"/Library/Preferences/ByHost/com.apple.screensaver."$hardwareUUID".plist
echo $(date -u) "2.3.1 remediated" | tee -a "$logFile"
fi
fi
# 2.3.2 Secure screen saver corners
# Verify organizational score
Audit2_3_2="$(defaults read "$plistlocation" OrgScore2_3_2)"
# If organizational score is 1 or true, check status of client
# If client fails, then remediate
if [ "$Audit2_3_2" = "1" ]; then
echo $(date -u) "Checking 2.3.2" | tee -a "$logFile"
bl_corner=$(defaults read /Users/"$currentUser"/Library/Preferences/com.apple.dock wvous-bl-corner)
tl_corner=$(defaults read /Users/"$currentUser"/Library/Preferences/com.apple.dock wvous-tl-corner)
tr_corner=$(defaults read /Users/"$currentUser"/Library/Preferences/com.apple.dock wvous-tr-corner)
br_corner=$(defaults read /Users/"$currentUser"/Library/Preferences/com.apple.dock wvous-br-corner)
if [[ ( "$bl_corner" != "6" && "$bl_corner" != "" ) ]] && [[ ("$tl_corner" != "6" && "$tl_corner" != "" ) ]] && [[ ("$tr_corner" != "6" && "$tr_corner" != "" ) ]] && [[ ("$br_corner" != "6" && "$br_corner" != "" ) ]]; then
echo $(date -u) "2.3.2 passed" | tee -a "$logFile"
fi
if [ "$bl_corner" = "6" -o "$bl_corner" = "" ]; then
echo "Disabling hot corner"
defaults write /Users/"$currentUser"/Library/Preferences/com.apple.dock wvous-bl-corner 1
chown "$currentUser":staff /Users/"$currentUser"/Library/Preferences/com.apple.dock.plist
echo $(date -u) "2.3.2 remediated" | tee -a "$logFile"
fi
if [ "$tl_corner" = "6" -o "$tl_corner" = "" ]; then
echo "Disabling hot corner"
defaults write /Users/"$currentUser"/Library/Preferences/com.apple.dock wvous-tl-corner 1
chown "$currentUser":staff /Users/"$currentUser"/Library/Preferences/com.apple.dock.plist
echo $(date -u) "2.3.2 remediated" | tee -a "$logFile"
fi
if [ "$tr_corner" = "6" -o "$tr_corner" = "" ]; then
echo "Disabling hot corner"
defaults write /Users/"$currentUser"/Library/Preferences/com.apple.dock wvous-tr-corner 1
chown "$currentUser":staff /Users/"$currentUser"/Library/Preferences/com.apple.dock.plist
echo $(date -u) "2.3.2 remediated" | tee -a "$logFile"
fi
if [ "$br_corner" = "6" -o "$br_corner" = "" ]; then
echo "Disabling hot corner"
defaults write /Users/"$currentUser"/Library/Preferences/com.apple.dock wvous-br-corner 1
chown "$currentUser":staff /Users/"$currentUser"/Library/Preferences/com.apple.dock.plist
echo $(date -u) "2.3.2 remediated" | tee -a "$logFile"
fi
fi
# 2.3.4 Set a screen corner to Start Screen Saver
# Verify organizational score
Audit2_3_4="$(defaults read "$plistlocation" OrgScore2_3_4)"
# If organizational score is 1 or true, check status of client
# If client fails, then remediate
if [ "$Audit2_3_4" = "1" ]; then
echo $(date -u) "Checking 2.3.4" | tee -a "$logFile"
bl_corner=$(defaults read /Users/"$currentUser"/Library/Preferences/com.apple.dock wvous-bl-corner)
tl_corner=$(defaults read /Users/"$currentUser"/Library/Preferences/com.apple.dock wvous-tl-corner)
tr_corner=$(defaults read /Users/"$currentUser"/Library/Preferences/com.apple.dock wvous-tr-corner)
br_corner=$(defaults read /Users/"$currentUser"/Library/Preferences/com.apple.dock wvous-br-corner)
if [[ ( "$bl_corner" != "5" || "$bl_corner" = "" ) ]] || [[ ( "$tl_corner" != "5" || "$tl_corner" = "" ) ]] || [[ ( "$tr_corner" != "5" || "$tr_corner" = "" ) ]] || [[ ( "$br_corner" != "5" || "$br_corner" = "" ) ]]; then
defaults write /Users/"$currentUser"/Library/Preferences/com.apple.dock wvous-bl-corner 5
chown "$currentUser":staff /Users/"$currentUser"/Library/Preferences/com.apple.dock.plist
echo $(date -u) "2.3.4 remediated" | tee -a "$logFile"; else
echo $(date -u) "2.3.4 passed" | tee -a "$logFile"
fi
fi
# 2.4.1 Disable Remote Apple Events
# Verify organizational score
Audit2_4_1="$(defaults read "$plistlocation" OrgScore2_4_1)"
# If organizational score is 1 or true, check status of client
# If client fails, then remediate
if [ "$Audit2_4_1" = "1" ]; then
echo $(date -u) "Checking 2.4.1" | tee -a "$logFile"
remoteAppleEvents=$(systemsetup -getremoteappleevents | awk '{print $4}')
if [ "$remoteAppleEvents" = "Off" ]; then
echo $(date -u) "2.4.1 passed" | tee -a "$logFile"; else
systemsetup -setremoteappleevents off
echo $(date -u) "2.4.1 remediated" | tee -a "$logFile"
fi
fi
# 2.4.2 Disable Internet Sharing
# Verify organizational score
Audit2_4_2="$(defaults read "$plistlocation" OrgScore2_4_2)"
# If organizational score is 1 or true, check status of client
# If client fails, then remediate
if [ "$Audit2_4_2" = "1" ]; then
echo $(date -u) "Checking 2.4.2" | tee -a "$logFile"
if [ -e /Library/Preferences/SystemConfiguration/com.apple.nat.plist ]; then
/usr/libexec/PlistBuddy -c "Delete :NAT:AirPort:Enabled" /Library/Preferences/SystemConfiguration/com.apple.nat.plist
/usr/libexec/PlistBuddy -c "Add :NAT:AirPort:Enabled bool false" /Library/Preferences/SystemConfiguration/com.apple.nat.plist
/usr/libexec/PlistBuddy -c "Delete :NAT:Enabled" /Library/Preferences/SystemConfiguration/com.apple.nat.plist
/usr/libexec/PlistBuddy -c "Add :NAT:Enabled bool false" /Library/Preferences/SystemConfiguration/com.apple.nat.plist
/usr/libexec/PlistBuddy -c "Delete :NAT:PrimaryInterface:Enabled" /Library/Preferences/SystemConfiguration/com.apple.nat.plist
/usr/libexec/PlistBuddy -c "Add :NAT:PrimaryInterface:Enabled bool false" /Library/Preferences/SystemConfiguration/com.apple.nat.plist
echo $(date -u) "2.4.2 enforced" | tee -a "$logFile"; else
echo $(date -u) "2.4.2 passed" | tee -a "$logFile"
fi
fi
# 2.4.3 Disable Screen Sharing
# Verify organizational score
Audit2_4_3="$(defaults read "$plistlocation" OrgScore2_4_3)"
# If organizational score is 1 or true, check status of client
# If client fails, then remediate
if [ "$Audit2_4_3" = "1" ]; then
echo $(date -u) "Checking 2.4.3" | tee -a "$logFile"
screenSharing=$(defaults read /System/Library/LaunchDaemons/com.apple.screensharing Disabled)
if [ "$screenSharing" = "1" ]; then
echo $(date -u) "2.4.3 passed" | tee -a "$logFile"; else
defaults write /System/Library/LaunchDaemons/com.apple.screensharing Disabled -bool true
echo $(date -u) "2.4.3 remediated" | tee -a "$logFile"
fi
fi
# 2.4.5 Disable Remote Login
# Verify organizational score
Audit2_4_5="$(defaults read "$plistlocation" OrgScore2_4_5)"
# If organizational score is 1 or true, check status of client
# If client fails, then remediate
if [ "$Audit2_4_5" = "1" ]; then
echo $(date -u) "Checking 2.4.5" | tee -a "$logFile"
remoteLogin=$(systemsetup -getremotelogin | awk '{print $3}')
if [ "$remoteLogin" = "Off" ]; then
echo $(date -u) "2.4.5 passed" | tee -a "$logFile"; else
systemsetup -f -setremotelogin off
echo $(date -u) "2.4.5 remediated" | tee -a "$logFile"
fi
fi
# 2.4.6 Disable DVD or CD Sharing
# Verify organizational score
Audit2_4_6="$(defaults read "$plistlocation" OrgScore2_4_6)"
# If organizational score is 1 or true, check status of client
# If client fails, then remediate
if [ "$Audit2_4_6" = "1" ]; then
echo $(date -u) "Checking 2.4.6" | tee -a "$logFile"
discSharing=$(launchctl list | egrep ODSAgent)
if [ "$discSharing" = "" ]; then
echo $(date -u) "2.4.6 passed" | tee -a "$logFile"; else
launchctl unload -w /System/Library/LaunchDaemons/com.apple.ODSAgent.plist
echo $(date -u) "2.4.6 remediated" | tee -a "$logFile"
fi
fi
# 2.4.7 Disable Bluetooth Sharing
# Verify organizational score
Audit2_4_7="$(defaults read "$plistlocation" OrgScore2_4_7)"
# If organizational score is 1 or true, check status of client and user
# If client fails, then remediate
if [ "$Audit2_4_7" = "1" ]; then
echo $(date -u) "Checking 2.4.7" | tee -a "$logFile"
btSharing=$(/usr/libexec/PlistBuddy -c "print :PrefKeyServicesEnabled" /Users/"$currentUser"/Library/Preferences/ByHost/com.apple.Bluetooth."$hardwareUUID".plist)
if [ "$btSharing" = "false" ]; then
echo $(date -u) "2.4.7 passed" | tee -a "$logFile"; else
/usr/libexec/PlistBuddy -c "Delete :PrefKeyServicesEnabled" /Users/"$currentUser"/Library/Preferences/ByHost/com.apple.Bluetooth."$hardwareUUID".plist
/usr/libexec/PlistBuddy -c "Add :PrefKeyServicesEnabled bool false" /Users/"$currentUser"/Library/Preferences/ByHost/com.apple.Bluetooth."$hardwareUUID".plist
echo $(date -u) "2.4.7 remediated" | tee -a "$logFile"
fi
fi
# 2.4.8 Disable File Sharing
# Verify organizational score
Audit2_4_8="$(defaults read "$plistlocation" OrgScore2_4_8)"
# If organizational score is 1 or true, check status of client
# If client fails, then remediate
if [ "$Audit2_4_8" = "1" ]; then
echo $(date -u) "Checking 2.4.8" | tee -a "$logFile"
afpEnabled=$(launchctl list | egrep AppleFileServer)
smbEnabled=$(launchctl list | egrep smbd)
if [ "$afpEnabled" = "" ] && [ "$smbEnabled" = "" ]; then
echo $(date -u) "2.4.8 passed" | tee -a "$logFile"; else
launchctl unload -w /System/Library/LaunchDaemons/com.apple.AppleFileServer.plist
launchctl unload -w /System/Library/LaunchDaemons/com.apple.smbd.plist
echo $(date -u) "2.4.8 remediated" | tee -a "$logFile"
fi
fi
# 2.4.9 Disable Remote Management
# Verify organizational score
Audit2_4_9="$(defaults read "$plistlocation" OrgScore2_4_9)"
# If organizational score is 1 or true, check status of client
# If client fails, then remediate
if [ "$Audit2_4_9" = "1" ]; then
echo $(date -u) "Checking 2.4.9" | tee -a "$logFile"
remoteManagement=$(ps -ef | egrep ARDAgent | grep -c "/System/Library/CoreServices/RemoteManagement/ARDAgent.app/Contents/MacOS/ARDAgent")
if [ "$remoteManagement" = "1" ]; then
echo $(date -u) "2.4.9 passed" | tee -a "$logFile"; else
/System/Library/CoreServices/RemoteManagement/ARDAgent.app/Contents/Resources/kickstart -deactivate -configure -access -off
echo $(date -u) "2.4.9 remediated" | tee -a "$logFile"
fi
fi
# 2.5.1 Disable "Wake for network access"
# Verify organizational score
Audit2_5_1="$(defaults read "$plistlocation" OrgScore2_5_1)"
# If organizational score is 1 or true, check status of client
# If client fails, then remediate
if [ "$Audit2_5_1" = "1" ]; then
echo $(date -u) "Checking 2.5.1" | tee -a "$logFile"
wompEnabled=$(pmset -g | grep womp | awk '{print $2}')
if [ "$wompEnabled" = "0" ]; then
echo $(date -u) "2.5.1 passed" | tee -a "$logFile"; else
pmset -a womp 0
echo $(date -u) "2.5.1 remediated" | tee -a "$logFile"
fi
fi
# 2.5.2 Disable sleeping the computer when connected to power
# Verify organizational score
Audit2_5_2="$(defaults read "$plistlocation" OrgScore2_5_2)"
# If organizational score is 1 or true, check status of client
# If client fails, then remediate
if [ "$Audit2_5_2" = "1" ]; then
echo $(date -u) "Checking 2.5.2" | tee -a "$logFile"
disksleepEnabled=$(pmset -g | grep disksleep | awk '{print $2}')
if [ "$disksleepEnabled" = "0" ]; then
echo $(date -u) "2.5.2 passed" | tee -a "$logFile"; else
pmset -c disksleep 0
pmset -c sleep 0
echo $(date -u) "2.5.2 remediated" | tee -a "$logFile"
fi
fi
# 2.6.2 Enable Gatekeeper
# Verify organizational score
Audit2_6_2="$(defaults read "$plistlocation" OrgScore2_6_2)"
# If organizational score is 1 or true, check status of client
# If client fails, then remediate
if [ "$Audit2_6_2" = "1" ]; then
echo $(date -u) "Checking 2.6.2" | tee -a "$logFile"
gatekeeperEnabled=$(spctl --status | grep -c "assessments enabled")
if [ "$gatekeeperEnabled" = "1" ]; then
echo $(date -u) "2.6.2 passed" | tee -a "$logFile"; else
spctl --master-enable
echo $(date -u) "2.6.2 remediated" | tee -a "$logFile"
fi
fi
# 2.6.3 Enable Firewall
# Verify organizational score
Audit2_6_3="$(defaults read "$plistlocation" OrgScore2_6_3)"
# If organizational score is 1 or true, check status of client
# If client fails, then remediate
if [ "$Audit2_6_3" = "1" ]; then
echo $(date -u) "Checking 2.6.3" | tee -a "$logFile"
firewallEnabled=$(defaults read /Library/Preferences/com.apple.alf globalstate)
if [ "$firewallEnabled" = "0" ]; then
defaults write /Library/Preferences/com.apple.alf globalstate -int 2
echo $(date -u) "2.6.3 remediated" | tee -a "$logFile"; else
echo $(date -u) "2.6.3 passed" | tee -a "$logFile"
fi
fi
# 2.6.4 Enable Firewall Stealth Mode
# Verify organizational score
Audit2_6_4="$(defaults read "$plistlocation" OrgScore2_6_4)"
# If organizational score is 1 or true, check status of client
# If client fails, then remediate
if [ "$Audit2_6_4" = "1" ]; then
echo $(date -u) "Checking 2.6.4" | tee -a "$logFile"
stealthEnabled=$(/usr/libexec/ApplicationFirewall/socketfilterfw --getstealthmode | awk '{print $3}')
if [ "$stealthEnabled" = "enabled" ]; then
echo $(date -u) "2.6.4 passed" | tee -a "$logFile"; else
/usr/libexec/ApplicationFirewall/socketfilterfw --setstealthmode on
echo $(date -u) "2.6.4 remediated" | tee -a "$logFile"
fi
fi
# 2.6.5 Review Application Firewall Rules
# Verify organizational score
Audit2_6_5="$(defaults read "$plistlocation" OrgScore2_6_5)"
# If organizational score is 1 or true, check status of client
# If client fails, then remediate
if [ "$Audit2_6_5" = "1" ]; then
echo $(date -u) "Checking 2.6.5" | tee -a "$logFile"
appsInbound=$(/usr/libexec/ApplicationFirewall/socketfilterfw --listapps | grep ALF | awk '{print $7}')
if [ -z "$appsInbound" ] || [ "$appsInbound" -le 10 ]; then
echo $(date -u) "2.6.5 passed" | tee -a "$logFile"; else
echo $(date -u) "2.6.5 not remediated" | tee -a "$logFile"
fi
fi
# 2.8.1 Time Machine Auto-Backup
# Verify organizational score
Audit2_8_1="$(defaults read "$plistlocation" OrgScore2_8_1)"
# If organizational score is 1 or true, check status of client
# If client fails, then remediate
if [ "$Audit2_8_1" = "1" ]; then
echo $(date -u) "Checking 2.8.1" | tee -a "$logFile"
timeMachineAuto=$( defaults read /Library/Preferences/com.apple.TimeMachine.plist AutoBackup )
if [ "$timeMachineAuto" != "1" ]; then
defaults write /Library/Preferences/com.apple.TimeMachine.plist AutoBackup 1
echo $(date -u) "2.8.1 remediated" | tee -a "$logFile"; else
echo $(date -u) "2.8.1 passed" | tee -a "$logFile"
fi
fi
# 2.9 Pair the remote control infrared receiver if enabled
# Verify organizational score
Audit2_9="$(defaults read "$plistlocation" OrgScore2_9)"
# If organizational score is 1 or true, check status of client
# If client fails, then remediate
if [ "$Audit2_9" = "1" ]; then
echo $(date -u) "Checking 2.9" | tee -a "$logFile"
IRPortDetect=$(system_profiler SPUSBDataType | egrep "IR Receiver" -c)
if [ "$IRPortDetect" = "0" ]; then
echo $(date -u) "2.9 passed" | tee -a "$logFile"; else
defaults write /Library/Preferences/com.apple.driver.AppleIRController DeviceEnabled -bool false
echo $(date -u) "2.9 remediated" | tee -a "$logFile"
fi
fi
# 2.10 Enable Secure Keyboard Entry in terminal.app
# Verify organizational score
Audit2_10="$(defaults read "$plistlocation" OrgScore2_10)"
# If organizational score is 1 or true, check status of client
# If client fails, then remediate
if [ "$Audit2_10" = "1" ]; then
echo $(date -u) "Checking 2.10" | tee -a "$logFile"
secureKeyboard=$(defaults read /Users/"$currentUser"/Library/Preferences/com.apple.Terminal SecureKeyboardEntry)
if [ "$secureKeyboard" = "1" ]; then
echo $(date -u) "2.10 passed" | tee -a "$logFile"; else
defaults write /Users/"$currentUser"/Library/Preferences/com.apple.Terminal SecureKeyboardEntry -bool true
chown "$currentUser":staff /Users/"$currentUser"/Library/Preferences/com.apple.Terminal.plist
echo $(date -u) "2.10 remediated" | tee -a "$logFile"
fi
fi
# 3.1.1 Retain system.log for 90 or more days
# Verify organizational score
Audit3_1_1="$(defaults read "$plistlocation" OrgScore3_1_1)"
# If organizational score is 1 or true, check status of client
# If client fails, then remediate
if [ "$Audit3_1_1" = "1" ]; then
echo $(date -u) "Checking 3.1.1" | tee -a "$logFile"
sysRetention=$(grep "system.log" /etc/asl.conf | grep "ttl" | awk -F'ttl=' '{print $2}')
if [ "$sysRetention" -gt "89" ]; then
echo $(date -u) "3.1.1 passed" | tee -a "$logFile"; else
if [ "$sysRetention" = "" ]; then
mv /etc/asl.conf /etc/asl_sys_old.conf
awk '/system\.log /{$0=$0 " ttl=90"}1' /etc/asl_sys_old.conf > /etc/asl.conf
chmod 644 /etc/asl.conf
chown root:wheel /etc/asl.conf
echo $(date -u) "3.1.1 remediated" | tee -a "$logFile"; else
if [ "$sysRetention" -lt "90" ]; then
mv /etc/asl.conf /etc/asl_sys_old.conf
sed "s/"ttl=$sysRetention"/"ttl=90"/g" /etc/asl_sys_old.conf > /etc/asl.conf
chmod 644 /etc/asl.conf
chown root:wheel /etc/asl.conf
echo $(date -u) "3.1.1 remediated" | tee -a "$logFile"
fi
fi
fi
fi
# 3.1.2 Retain appfirewall.log for 90 or more days
# Verify organizational score
Audit3_1_2="$(defaults read "$plistlocation" OrgScore3_1_2)"
# If organizational score is 1 or true, check status of client
# If client fails, then remediate
if [ "$Audit3_1_2" = "1" ]; then
echo $(date -u) "Checking 3.1.2" | tee -a "$logFile"
alfRetention=$(grep "appfirewall.log" /etc/asl.conf | grep "ttl" | awk -F'ttl=' '{print $2}')
if [ "$alfRetention" -gt "89" ]; then
echo $(date -u) "3.1.2 passed" | tee -a "$logFile"; else
if [ "$alfRetention" = "" ]; then
mv /etc/asl.conf /etc/asl_alf_old.conf
awk '/appfirewall\.log /{$0=$0 " ttl=90"}1' /etc/asl_alf_old.conf > /etc/asl.conf
chmod 644 /etc/asl.conf
chown root:wheel /etc/asl.conf
echo $(date -u) "3.1.2 remediated" | tee -a "$logFile"; else
if [ "$alfRetention" -lt "90" ]; then
mv /etc/asl.conf /etc/asl_alf_old.conf
sed "s/"ttl=$alfRetention"/"ttl=90"/g" /etc/asl_alf_old.conf > /etc/asl.conf
chmod 644 /etc/asl.conf
chown root:wheel /etc/asl.conf
echo $(date -u) "3.1.2 remediated" | tee -a "$logFile"
fi
fi
fi
fi
# 3.1.3 Retain authd.log for 90 or more days
# Verify organizational score
Audit3_1_3="$(defaults read "$plistlocation" OrgScore3_1_3)"
# If organizational score is 1 or true, check status of client
# If client fails, then remediate
if [ "$Audit3_1_3" = "1" ]; then
echo $(date -u) "Checking 3.1.3" | tee -a "$logFile"
authdRetention=$(grep -i ttl /etc/asl/com.apple.authd | awk -F'ttl=' '{print $2}')
if [ "$authdRetention" -gt "89" ]; then
echo $(date -u) "3.1.3 passed" | tee -a "$logFile"; else
if [ "$authdRetention" = "" ]; then
mv /etc/asl/com.apple.authd /etc/asl/com.apple.authd.old
sed "s/"all_max=20M"/"all_max=20M\ ttl=90"/g" /etc/asl/com.apple.authd.old > /etc/asl/com.apple.authd
chmod 644 /etc/asl/com.apple.authd
chown root:wheel /etc/asl/com.apple.authd
echo $(date -u) "3.1.3 remediated" | tee -a "$logFile"; else
if [ "$authdRetention" -lt "90" ]; then
mv /etc/asl/com.apple.authd /etc/asl/com.apple.authd.old
sed "s/"ttl=$authdRetention"/"ttl=90"/g" /etc/asl/com.apple.authd.old > /etc/asl/com.apple.authd
chmod 644 /etc/asl/com.apple.authd
chown root:wheel /etc/asl/com.apple.authd
echo $(date -u) "3.1.3 remediated" | tee -a "$logFile"
fi
fi
fi
fi
# 3.2 Enable security auditing
# Verify organizational score
Audit3_2="$(defaults read "$plistlocation" OrgScore3_2)"
# If organizational score is 1 or true, check status of client
# If client fails, then remediate
if [ "$Audit3_2" = "1" ]; then
echo $(date -u) "Checking 3.2" | tee -a "$logFile"
auditdEnabled=$(launchctl list | grep -c auditd)
if [ "$auditdEnabled" -gt "0" ]; then
echo $(date -u) "3.1.3 passed" | tee -a "$logFile"; else
launchctl load -w /System/Library/LaunchDaemons/com.apple.auditd.plist
echo $(date -u) "3.2 remediated" | tee -a "$logFile"
fi
fi
# 3.3 Configure Security Auditing Flags
# Verify organizational score
Audit3_3="$(defaults read "$plistlocation" OrgScore3_3)"
# If organizational score is 1 or true, check status of client
# If client fails, then remediate
if [ "$Audit3_3" = "1" ]; then
echo $(date -u) "Checking 3.3" | tee -a "$logFile"
auditFlags=$(egrep "^flags:" /etc/security/audit_control)
if [[ ${auditFlags} != *"ad"* ]];then
cp /etc/security/audit_control /etc/security/audit_control_old
sed "s/"flags:lo,aa"/"flags:lo,ad,fd,fm,-all"/g" /etc/security/audit_control_old > /etc/security/audit_control
chmod 644 /etc/security/audit_control
chown root:wheel /etc/security/audit_control
echo $(date -u) "3.3 remediated" | tee -a "$logFile"; else
echo $(date -u) "3.3 passed" | tee -a "$logFile"
fi
fi
# 3.5 Retain install.log for 365 or more days
# Verify organizational score
Audit3_5="$(defaults read "$plistlocation" OrgScore3_5)"
# If organizational score is 1 or true, check status of client
# If client fails, then remediate
if [ "$Audit3_5" = "1" ]; then
echo $(date -u) "Checking 3.5" | tee -a "$logFile"
if [[ ${os_vers_major} -eq 10 ]] && [[ ${os_vers_minor} -ge 13 ]]; then
echo $(date -u) "3.5 not applicable to macOS 10.13" | tee -a "$logFile"
else
installRetention=$(grep -i ttl /etc/asl/com.apple.install | awk -F'ttl=' '{print $2}')
if [ "$installRetention" -gt "364" ]; then
echo $(date -u) "3.5 passed" | tee -a "$logFile"
fi
if [ "$installRetention" = "" ] || [ "$installRetention" -lt "365" ]; then
if [ "$installRetention" = "" ]; then
mv /etc/asl/com.apple.install /etc/asl/com.apple.install.old
sed "s/"format=bsd"/"format=bsd\ ttl=365"/g" /etc/asl/com.apple.install.old > /etc/asl/com.apple.install
chmod 644 /etc/asl/com.apple.install
chown root:wheel /etc/asl/com.apple.install
echo $(date -u) "3.5 remediated" | tee -a "$logFile"
fi
if [ "$installRetention" -lt "365" ]; then
mv /etc/asl/com.apple.install /etc/asl/com.apple.install.old
sed "s/"ttl=$installRetention"/"ttl=365"/g" /etc/asl/com.apple.install.old > /etc/asl/com.apple.install
chmod 644 /etc/asl/com.apple.install
chown root:wheel /etc/asl/com.apple.install
echo $(date -u) "3.5 remediated" | tee -a "$logFile"
fi
fi
fi
fi
# 4.1 Disable Bonjour advertising service
# Verify organizational score
Audit4_1="$(defaults read "$plistlocation" OrgScore4_1)"
# If organizational score is 1 or true, check status of client
# If client fails, then remediate
if [ "$Audit4_1" = "1" ]; then
echo $(date -u) "Checking 4.1" | tee -a "$logFile"
bonjourAdvertise=$(defaults read /Library/Preferences/com.apple.mDNSResponder.plist NoMulticastAdvertisements)
if [ "$bonjourAdvertise" != "1" ]; then
defaults write /Library/Preferences/com.apple.mDNSResponder.plist NoMulticastAdvertisements -int 1
echo $(date -u) "4.1 remediated" | tee -a "$logFile"; else
echo $(date -u) "4.1 passed" | tee -a "$logFile"
fi
fi
# 4.2 Enable "Show Wi-Fi status in menu bar"
# Verify organizational score
Audit4_2="$(defaults read "$plistlocation" OrgScore4_2)"
# If organizational score is 1 or true, check status of client
# If client fails, then remediate
if [ "$Audit4_2" = "1" ]; then
echo $(date -u) "Checking 4.2" | tee -a "$logFile"
wifiMenuBar="$(defaults read /Users/"$currentUser"/Library/Preferences/com.apple.systemuiserver menuExtras | grep -c AirPort.menu)"
if [ "$wifiMenuBar" = "0" ]; then
open "/System/Library/CoreServices/Menu Extras/AirPort.menu"
echo $(date -u) "4.2 remediated" | tee -a "$logFile"; else
echo $(date -u) "4.2 passed" | tee -a "$logFile"
fi
fi
# 4.4 Ensure http server is not running
# Verify organizational score
Audit4_4="$(defaults read "$plistlocation" OrgScore4_4)"
# If organizational score is 1 or true, check status of client
# If client fails, then remediate
if [ "$Audit4_4" = "1" ]; then
echo $(date -u) "Checking 4.4" | tee -a "$logFile"
if /bin/launchctl list | egrep httpd > /dev/null; then
apachectl stop
defaults write /System/Library/LaunchDaemons/org.apache.httpd Disabled -bool true
echo $(date -u) "4.4 remediated" | tee -a "$logFile"; else
echo $(date -u) "4.4 passed" | tee -a "$logFile"
fi
fi
# 4.5 Ensure ftp server is not running
# Verify organizational score
Audit4_5="$(defaults read "$plistlocation" OrgScore4_5)"
# If organizational score is 1 or true, check status of client
# If client fails, then remediate
if [ "$Audit4_5" = "1" ]; then
echo $(date -u) "Checking 4.5" | tee -a "$logFile"
ftpEnabled=$(launchctl list | egrep ftp | grep -c "com.apple.ftpd")
if [ "$ftpEnabled" -lt "1" ]; then
echo $(date -u) "4.5 passed" | tee -a "$logFile"; else
launchctl unload -w /System/Library/LaunchDaemons/ftp.plist
echo $(date -u) "4.5 remediated" | tee -a "$logFile"
fi
fi
# 4.6 Ensure nfs server is not running
# Verify organizational score
Audit4_6="$(defaults read "$plistlocation" OrgScore4_6)"
# If organizational score is 1 or true, check status of client
# If client fails, then remediate
if [ "$Audit4_6" = "1" ]; then
echo $(date -u) "Checking 4.6" | tee -a "$logFile"
if [ -e /etc/exports ]; then
nfsd disable
rm /etc/export
echo $(date -u) "4.6 remediated" | tee -a "$logFile"; else
echo $(date -u) "4.6 passed" | tee -a "$logFile"
fi
fi
# 5.1.1 Secure Home Folders
# Verify organizational score
Audit5_1_1="$(defaults read "$plistlocation" OrgScore5_1_1)"
# If organizational score is 1 or true, check status of client
if [ "$Audit5_1_1" = "1" ]; then
echo $(date -u) "Checking 5.1.1" | tee -a "$logFile"
# If client fails, then remediate
find /Users -mindepth 1 -maxdepth 1 -type d -perm -1 | grep -v "Shared" | grep -v "Guest" | while read -r userDirs; do
chmod -R og-rwx "$userDirs"
done
echo $(date -u) "5.1.1 enforced" | tee -a "$logFile"
fi
# 5.1.2 Check System Wide Applications for appropriate permissions
# Verify organizational score
Audit5_1_2="$(defaults read "$plistlocation" OrgScore5_1_2)"
# If organizational score is 1 or true, check status of client
# If client fails, then remediate
if [ "$Audit5_1_2" = "1" ]; then
echo $(date -u) "Checking 5.1.2" | tee -a "$logFile"
find /Applications -iname "*\.app" -type d -perm -2 | while read -r apps; do
chmod -R o-w "$apps"
done
echo $(date -u) "5.1.2 enforced" | tee -a "$logFile"
fi
# 5.1.3 Check System folder for world writable files
# Verify organizational score
Audit5_1_3="$(defaults read "$plistlocation" OrgScore5_1_3)"
# If organizational score is 1 or true, check status of client
# If client fails, then remediate
if [ "$Audit5_1_3" = "1" ]; then
echo $(date -u) "Checking 5.1.3" | tee -a "$logFile"
find /System -type d -perm -2 | grep -v "Public/Drop Box" | while read -r sysPermissions; do
chmod -R o-w "$sysPermissions"
done
echo $(date -u) "5.1.3 enforced" | tee -a "$logFile"
fi
# 5.1.4 Check Library folder for world writable files
# Verify organizational score
Audit5_1_4="$(defaults read "$plistlocation" OrgScore5_1_4)"
# If organizational score is 1 or true, check status of client
# If client fails, then remediate
if [ "$Audit5_1_4" = "1" ]; then
echo $(date -u) "Checking 5.1.4" | tee -a "$logFile"
# Exempts Adobe files by default!
# for libPermissions in $( find /Library -type d -perm -2 | grep -v Caches ); do
find /Library -type d -perm -2 | grep -v Caches | grep -v Adobe | while read -r libPermissions; do
chmod -R o-w "$libPermissions"
done
echo $(date -u) "5.1.4 enforced" | tee -a "$logFile"
fi
# 5.3 Reduce the sudo timeout period
# Verify organizational score
Audit5_3="$(defaults read "$plistlocation" OrgScore5_3)"
# If organizational score is 1 or true, check status of client
# If client fails, then remediate
if [ "$Audit5_3" = "1" ]; then
echo $(date -u) "Checking 5.3" | tee -a "$logFile"
sudoTimeout=$(cat /etc/sudoers | grep timestamp)
if [ "$sudoTimeout" = "" ]; then
echo "Defaults timestamp_timeout=0" >> /etc/sudoers
echo $(date -u) "5.3 remediated" | tee -a "$logFile"; else
echo $(date -u) "5.3 passed" | tee -a "$logFile"
fi
fi
# 5.4 Automatically lock the login keychain for inactivity
# 5.5 Ensure login keychain is locked when the computer sleeps
# We need to couple both of them as trying to change each setting individually will overwite each other
# Verify organizational score
Audit5_4="$(defaults read "$plistlocation" OrgScore5_4)"
Audit5_5="$(defaults read "$plistlocation" OrgScore5_5)"
# If organizational score is 1 or true, check status of client
# If client fails, then remediate
if [ "$Audit5_4" = "1" ] || [ "$Audit5_5" = "1" ]; then
echo $(date -u) "Checking 5.4 & 5.5" | tee -a "$logFile"
if [ "$Audit5_4" = "1" ] && [ "$Audit5_5" = "1" ]; then
security set-keychain-settings -l -u -t 21600s /Users/"$currentUser"/Library/Keychains/login.keychain
echo $(date -u) "5.4 & 5.5 remediated" | tee -a "$logFile"
elif [ "$Audit5_4" = "1" ] && [ "$Audit5_5" = "0" ]; then
security set-keychain-settings -u -t 21600s /Users/"$currentUser"/Library/Keychains/login.keychain
echo $(date -u) "5.4 remediated" | tee -a "$logFile"
elif [ "$Audit5_4" = "0" ] && [ "$Audit5_5" = "1" ]; then
security set-keychain-settings -l /Users/"$currentUser"/Library/Keychains/login.keychain
echo $(date -u) "5.5 remediated" | tee -a "$logFile"
fi
fi
# 5.6 Enable OCSP and CRL certificate checking
# Verify organizational score
Audit5_6="$(defaults read "$plistlocation" OrgScore5_6)"
# If organizational score is 1 or true, check status of client
# If client fails, then remediate
if [ "$Audit5_6" = "1" ]; then
echo $(date -u) "Checking 5.6" | tee -a "$logFile"
certificateCheckOCSP=$(defaults read /Users/"$currentUser"/Library/Preferences/com.apple.security.revocation OCSPStyle)
certificateCheckCRL=$(defaults read /Users/"$currentUser"/Library/Preferences/com.apple.security.revocation CRLStyle)
# If client fails, then note category in audit file
if [ "$certificateCheckOCSP" != "RequireIfPresent" ] || [ "$certificateCheckCRL" != "RequireIfPresent" ]; then
defaults write com.apple.security.revocation OCSPStyle -string RequireIfPresent
defaults write com.apple.security.revocation CRLStyle -string RequireIfPresent
defaults write /Users/"$currentUser"/Library/Preferences/com.apple.security.revocation OCSPStyle -string RequireIfPresent
defaults write /Users/"$currentUser"/Library/Preferences/com.apple.security.revocation CRLStyle -string RequireIfPresent
chown "$currentUser":staff /Users/"$currentUser"/Library/Preferences/com.apple.security.revocation.plist
echo $(date -u) "5.6 remediated" | tee -a "$logFile"
else
echo $(date -u) "5.6 passed" | tee -a "$logFile"
fi
fi
# 5.7 Do not enable the "root" account
# Verify organizational score
Audit5_7="$(defaults read "$plistlocation" OrgScore5_7)"
# If organizational score is 1 or true, check status of client
# If client fails, then remediate
if [ "$Audit5_7" = "1" ]; then
echo $(date -u) "Checking 5.7" | tee -a "$logFile"
rootEnabled=$(dscl . -read /Users/root AuthenticationAuthority 2>&1 | grep -c "No such key")
if [ "$rootEnabled" = "1" ]; then
echo $(date -u) "5.7 passed" | tee -a "$logFile"; else
dscl . -create /Users/root UserShell /usr/bin/false
echo $(date -u) "5.7 remediated" | tee -a "$logFile"
fi
fi
# 5.8 Disable automatic login
# Verify organizational score
Audit5_8="$(defaults read "$plistlocation" OrgScore5_8)"
# If organizational score is 1 or true, check status of client
# If client fails, then remediate
if [ "$Audit5_8" = "1" ]; then
echo $(date -u) "Checking 5.8" | tee -a "$logFile"
autologinEnabled=$(defaults read /Library/Preferences/com.apple.loginwindow | grep autoLoginUser)
if [ "$autologinEnabled" = "" ]; then
echo $(date -u) "5.8 passed" | tee -a "$logFile"; else
defaults delete /Library/Preferences/com.apple.loginwindow autoLoginUser
echo $(date -u) "5.8 remediated" | tee -a "$logFile"
fi
fi
# 5.9 Require a password to wake the computer from sleep or screen saver
# Verify organizational score
Audit5_9="$(defaults read "$plistlocation" OrgScore5_9)"
# If organizational score is 1 or true, check status of client
# If client fails, then remediate
if [ "$Audit5_9" = "1" ]; then
echo $(date -u) "Checking 5.9" | tee -a "$logFile"
screensaverPwd=$(defaults read /Users/"$currentUser"/Library/Preferences/com.apple.screensaver askForPassword)
if [ "$screensaverPwd" = "1" ]; then
echo $(date -u) "5.9 passed" | tee -a "$logFile"; else
defaults write /Users/"$currentUser"/Library/Preferences/com.apple.screensaver askForPassword -int 1
chown "$currentUser":staff /Users/"$currentUser"/Library/Preferences/com.apple.screensaver.plist
echo $(date -u) "5.9 remediated" | tee -a "$logFile"
fi
fi
# 5.10 Require an administrator password to access system-wide preferences
# Verify organizational score
Audit5_10="$(defaults read "$plistlocation" OrgScore5_10)"
# If organizational score is 1 or true, check status of client
# If client fails, then remediate
if [ "$Audit5_10" = "1" ]; then
echo $(date -u) "Checking 5.10" | tee -a "$logFile"
adminSysPrefs=$(security authorizationdb read system.preferences 2> /dev/null | grep -A1 shared | grep -E '(true|false)' | grep -c "true")
if [ "$adminSysPrefs" = "1" ]; then
security authorizationdb read system.preferences > /tmp/system.preferences.plist
/usr/libexec/PlistBuddy -c "Set :shared false" /tmp/system.preferences.plist
security authorizationdb write system.preferences < /tmp/system.preferences.plist
echo $(date -u) "5.10 remediated" | tee -a "$logFile"; else
echo $(date -u) "5.10 passed" | tee -a "$logFile"
fi
fi
# 5.11 Disable ability to login to another user's active and locked session
# Verify organizational score
Audit5_11="$(defaults read "$plistlocation" OrgScore5_11)"
# If organizational score is 1 or true, check status of client
# If client fails, then remediate
if [ "$Audit5_11" = "1" ]; then
echo $(date -u) "Checking 5.11" | tee -a "$logFile"
screensaverGroups=$(grep -c "group=admin,wheel fail_safe" /etc/pam.d/screensaver)
if [ "$screensaverGroups" = "1" ]; then
cp /etc/pam.d/screensaver /etc/pam.d/screensaver_old
sed "s/"group=admin,wheel\ fail_safe"/"group=wheel\ fail_safe"/g" /etc/pam.d/screensaver_old > /etc/pam.d/screensaver
chmod 644 /etc/pam.d/screensaver
chown root:wheel /etc/pam.d/screensaver
echo $(date -u) "5.11 remediated" | tee -a "$logFile"; else
echo $(date -u) "5.11 passed" | tee -a "$logFile"
fi
fi
# 5.18 System Integrity Protection status
# Verify organizational score
Audit5_18="$(defaults read "$plistlocation" OrgScore5_18)"
# If organizational score is 1 or true, check status of client
# If client fails, then remediate
if [ "$Audit5_18" = "1" ]; then
echo $(date -u) "Checking 5.18" | tee -a "$logFile"
sipEnabled=$(/usr/bin/csrutil status | awk '{print $5}')
if [ "$sipEnabled" = "enabled." ]; then
echo $(date -u) "5.18 passed" | tee -a "$logFile"; else
/usr/bin/csrutil enable
echo $(date -u) "5.18 remediated" | tee -a "$logFile"
fi
fi
# 6.1.1 Display login window as name and password
# Verify organizational score
Audit6_1_1="$(defaults read "$plistlocation" OrgScore6_1_1)"
# If organizational score is 1 or true, check status of client
if [ "$Audit6_1_1" = "1" ]; then
echo $(date -u) "Checking 6.1.1" | tee -a "$logFile"
loginwindowFullName=$(defaults read /Library/Preferences/com.apple.loginwindow SHOWFULLNAME)
# If client fails, then remediate
if [ "$loginwindowFullName" != "1" ]; then
defaults write /Library/Preferences/com.apple.loginwindow SHOWFULLNAME -int 1
echo $(date -u) "6.1.1 remediated" | tee -a "$logFile"; else
echo $(date -u) "6.1.1 passed" | tee -a "$logFile"
fi
fi
# 6.1.2 Disable "Show password hints"
# Verify organizational score
Audit6_1_2="$(defaults read "$plistlocation" OrgScore6_1_2)"
# If organizational score is 1 or true, check status of client
if [ "$Audit6_1_2" = "1" ]; then
echo $(date -u) "Checking 6.1.2" | tee -a "$logFile"
passwordHints=$(defaults read /Library/Preferences/com.apple.loginwindow RetriesUntilHint)
# If client fails, then remediate
if [ -z "$passwordHints" ] || [ "$passwordHints" -gt 0 ]; then
defaults write /Library/Preferences/com.apple.loginwindow RetriesUntilHint -int 0
echo $(date -u) "6.1.2 remediated" | tee -a "$logFile"; else