forked from CiscoCXSecurity/enum4linux
-
Notifications
You must be signed in to change notification settings - Fork 4
/
Copy pathenum4linux.pl
executable file
·1232 lines (1127 loc) · 45.8 KB
/
enum4linux.pl
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
#!/usr/bin/perl
# enum4linux - Windows enumeration tool for Linux
# Copyright (C) 2011 Mark Lowe
#
# This tool may be used for legal purposes only. Users take full responsibility
# for any actions performed using this tool. The author accepts no liability
# for damage caused by this tool. If these terms are not acceptable to you, then
# you are not permitted to use this tool.
#
# In all other respects the GPL version 2 applies:
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License along
# with this program; if not, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
#
# You are encouraged to send comments, improvements or suggestions to
# me at [email protected]
#
# TODO
#
# * replace system($string) with system($prog, @args).
#
# * Search RID space intellegently. Samba starts accounts at 0, but
# Windows starts at 500. We don't want to search 0-500 on all
# hosts. Maybe check 0-10 and abort if nothing is found. Some SIDs
# on samba servers start RIDs much higher (3000+). How do we make
# sure we get all these.
#
# * Mutliple SIDs can be found on some hosts (samba).
#
# * Output Group Memberships in a more parsable format.
#
use strict;
use warnings;
use Getopt::Std;
use File::Basename;
use Data::Dumper;
use Scalar::Util qw(tainted);
use Term::ANSIColor;
my $VERSION="0.9.1";
my $verbose = 0;
my $debug = 0;
my $aggressive = 0;
my $global_fail_limit = 1000; # no command line option yet
my $global_search_until_fail = 0; # no command line option yet
my $heighest_rid = 999999;
my $global_workgroup = '';
my $global_username = '';
my $global_password = '';
my $global_dictionary = 0;
my $global_filename = '';
my $global_share_file = '';
my $global_detailed = 0;
my $global_passpol = 0;
my $global_rid_range = "500-550,1000-1050";
my $global_known_username_string = "administrator,guest,krbtgt,domain admins,root,bin,none";
my @dependent_programs = qw(nmblookup net rpcclient smbclient);
my @optional_dependent_programs = qw(polenum ldapsearch);
my %odp_present = ();
my $null_session_test = 0;
my %opts;
###############################################################################
# The following mappings for nmblookup (nbtstat) status codes to human readable
# format is taken from nbtscan 1.5.1 "statusq.c". This file in turn
# was derived from the Samba package which contains the following
# license:
# Unix SMB/Netbios implementation
# Version 1.9
# Main SMB server routine
# Copyright (C) Andrew Tridgell 1992-199
#
# This program is free software; you can redistribute it and/or modif
# it under the terms of the GNU General Public License as published b
# the Free Software Foundation; either version 2 of the License, o
# (at your option) any later version
#
# This program is distributed in the hope that it will be useful
# but WITHOUT ANY WARRANTY; without even the implied warranty o
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See th
# GNU General Public License for more details
#
# You should have received a copy of the GNU General Public Licens
# along with this program; if not, write to the Free Softwar
# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA
my @nbt_info = (
["__MSBROWSE__", "01", 0, "Master Browser"],
["INet~Services", "1C", 0, "IIS"],
["IS~", "00", 1, "IIS"],
["", "00", 1, "Workstation Service"],
["", "01", 1, "Messenger Service"],
["", "03", 1, "Messenger Service"],
["", "06", 1, "RAS Server Service"],
["", "1F", 1, "NetDDE Service"],
["", "20", 1, "File Server Service"],
["", "21", 1, "RAS Client Service"],
["", "22", 1, "Microsoft Exchange Interchange(MSMail Connector)"],
["", "23", 1, "Microsoft Exchange Store"],
["", "24", 1, "Microsoft Exchange Directory"],
["", "30", 1, "Modem Sharing Server Service"],
["", "31", 1, "Modem Sharing Client Service"],
["", "43", 1, "SMS Clients Remote Control"],
["", "44", 1, "SMS Administrators Remote Control Tool"],
["", "45", 1, "SMS Clients Remote Chat"],
["", "46", 1, "SMS Clients Remote Transfer"],
["", "4C", 1, "DEC Pathworks TCPIP service on Windows NT"],
["", "52", 1, "DEC Pathworks TCPIP service on Windows NT"],
["", "87", 1, "Microsoft Exchange MTA"],
["", "6A", 1, "Microsoft Exchange IMC"],
["", "BE", 1, "Network Monitor Agent"],
["", "BF", 1, "Network Monitor Application"],
["", "03", 1, "Messenger Service"],
["", "00", 0, "Domain/Workgroup Name"],
["", "1B", 1, "Domain Master Browser"],
["", "1C", 0, "Domain Controllers"],
["", "1D", 1, "Master Browser"],
["", "1E", 0, "Browser Service Elections"],
["", "2B", 1, "Lotus Notes Server Service"],
["IRISMULTICAST", "2F", 0, "Lotus Notes"],
["IRISNAMESERVER", "33", 0, "Lotus Notes"],
['Forte_$ND800ZA', "20", 1, "DCA IrmaLan Gateway Server Service"]
);
####################### end of nbtscan-derrived code ############################
my $usage =<<USAGE;
enum4linux v$VERSION \(http://labs.portcullis.co.uk/application/enum4linux/\)
Copyright \(C\) 2011 Mark Lowe \(mrl\@portcullis-security.com\)
Simple wrapper around the tools in the samba package to provide similar
functionality to enum.exe (formerly from www.bindview.com). Some additional
features such as RID cycling have also been added for convenience.
Usage: $0 [options] ip
Options are (like "enum"):
-U get userlist
-M get machine list*
-S get sharelist
-P get password policy information
-G get group and member list
-d be detailed, applies to -U and -S
-u user specify username to use (default "")
-p pass specify password to use (default "")
The following options from enum.exe aren't implemented: -L, -N, -D, -f
Additional options:
-a Do all simple enumeration (-U -S -G -P -r -o -n -i).
This option is enabled if you don't provide any other options.
-h Display this help message and exit
-r enumerate users via RID cycling
-R range RID ranges to enumerate (default: $global_rid_range, implies -r)
-K n Keep searching RIDs until n consective RIDs don't correspond to
a username. Impies RID range ends at $heighest_rid. Useful
against DCs.
-l Get some (limited) info via LDAP 389/TCP (for DCs only)
-s file brute force guessing for share names
-k user User(s) that exists on remote system (default: $global_known_username_string)
Used to get sid with "lookupsid known_username"
Use commas to try several users: "-k admin,user1,user2"
-o Get OS information
-i Get printer information
-w wrkg Specify workgroup manually (usually found automatically)
-n Do an nmblookup (similar to nbtstat)
-v Verbose. Shows full commands being run (net, rpcclient, etc.)
-A Aggressive. Do write checks on shares etc
RID cycling should extract a list of users from Windows \(or Samba\) hosts
which have RestrictAnonymous set to 1 \(Windows NT and 2000\), or \"Network
access: Allow anonymous SID/Name translation\" enabled \(XP, 2003\).
NB: Samba servers often seem to have RIDs in the range 3000-3050.
Dependancy info: You will need to have the samba package installed as this
script is basically just a wrapper around rpcclient, net, nmblookup and
smbclient. Polenum from http://labs.portcullis.co.uk/application/polenum/
is required to get Password Policy info.
USAGE
# Notes on Taint
# --------------
#
# This script should run OK with Taint checking on (perl -T). I've
# turned it off because it complains about your path somethimes which
# users found annoying.
#
# I mainly implemented taint checking incase someone set up a malicious server to return
# a workgroup like: WORK; cat /etc/passwd | mail [email protected];
#
# I've also been paranoid and applied taint checking to command line options. This
# isn't necessarily particularly useful, though.
# Untaint PATH. We're not too bothered about mailicious paths for the usage of this
# tool, but we must remove "." from the path to keep perl happy.
$ENV{'PATH'} =~ /(.*)/;
$ENV{'PATH'} = $1;
$ENV{'PATH'} =~ s/^://;
$ENV{'PATH'} =~ s/:$//;
$ENV{'PATH'} =~ s/^\.://;
$ENV{'PATH'} =~ s/:\.//;
getopts('UMNSPGlLDu:dp:f:rR:s:k:vAow:hnaiPK:', \%opts);
# Print help message if required
if ($opts{'h'}) {
print $usage;
exit 0;
}
# Read host and untaint
my $global_target = shift or die $usage;
if ($global_target =~ /^([a-zA-Z0-9\._\-]+)$/) {
$global_target = $1;
} else {
print "ERROR: Target hostname \"$global_target\" contains some illegal characters\n";
exit 1;
}
#
# Read in options
#
# Enable -a if no other options (apart from -v, -u, -p or -w) are given
unless (scalar( grep { $_ ne 'v' && $_ ne 'u' && $_ ne 'p' && $_ ne 'w' } keys %opts)) {
$opts{'a'} = 1;
}
# Turn on some other options if -a given
if ($opts{'a'}) {
$opts{'U'} = 1;
$opts{'S'} = 1;
$opts{'G'} = 1;
$opts{'r'} = 1;
$opts{'P'} = 1;
$opts{'o'} = 1;
$opts{'n'} = 1;
$opts{'i'} = 1;
}
$global_username = $opts{'u'} if $opts{'u'};
$global_password = $opts{'p'} if $opts{'p'};
$global_detailed = $opts{'d'} if $opts{'d'};
$global_dictionary = $opts{'D'} if $opts{'D'};
$global_filename = $opts{'f'} if $opts{'f'};
$global_rid_range = $opts{'R'} if $opts{'R'};
$global_passpol = $opts{'P'} if $opts{'P'};
$global_fail_limit = $opts{'K'} if $opts{'K'};
$global_share_file = $opts{'s'} if $opts{'s'};
$global_known_username_string = $opts{'k'} if $opts{'k'};
$global_workgroup = $opts{'w'} if $opts{'w'};
$verbose = $opts{'v'} if $opts{'v'};
$aggressive = 1 if $opts{'A'};
$opts{'r'} = 1 if $opts{'R'};
$global_search_until_fail = 1 if defined($opts{'K'});
my @global_known_usernames = split(",", $global_known_username_string);
# Check that dependant programs are present on the system - hopefull "which" is installed!
my $dependency_error = 0;
foreach my $prog (@dependent_programs) {
my $which_output = `which $prog 2>/dev/null`;
chomp $which_output;
if (($which_output !~ /^\/.*\/$prog$/) && (! -f "/usr/bin/" . $prog) && (! -f "/usr/sbin/" . $prog) && (! -f "/usr/local/bin/" . $prog) && (! -f "/usr/local/bin/" . $prog)) {
print "ERROR: $prog is not in your path. Check that samba package is installed\n";
$dependency_error = 1;
} else {
print_verbose("Dependent program \"$prog\" found in $which_output\n") if $verbose;
}
}
foreach my $prog (@optional_dependent_programs) {
my $which_output = `which $prog 2>&1`;
chomp $which_output;
if ($which_output !~ /^\/.*\/$prog$/) {
print "WARNING: $prog is not in your path. Check that package is installed and your PATH is sane.\n";
$odp_present{$prog} = 0;
} else {
print_verbose("Dependent program \"$prog\" found in $which_output\n") if $verbose;
$odp_present{$prog} = 1;
}
}
if ($dependency_error) {
print "For Gentoo, you need to install the \"samba\" package\n";
print "For Debian, you need to install the \"smbclient\" package\n";
exit 1;
}
# Untaint workgroup if supplied on command line
if (defined($global_workgroup)) {
if ($global_workgroup =~ /^([a-zA-Z0-9\.\-_]*)$/) {
$global_workgroup = $1;
} else {
print "ERROR: Workgroup \"$global_workgroup\" contains some illegal characters\n";
exit 1;
}
}
# We're going to use hard quotes around all variables used in "system" calls.
# We don't want bad data to be able to break out of these quotes.
foreach my $known_username (@global_known_usernames) {
$known_username =~ s/'/'\''/g; ($known_username) = $known_username =~ /(.*)/;
}
$global_username =~ s/'/'\\''/g; ($global_username) = $global_username =~ /(.*)/;
$global_password =~ s/'/'\\''/g; ($global_password) = $global_password =~ /(.*)/;
# Output message about options used
print "Starting enum4linux v$VERSION ( http://labs.portcullis.co.uk/application/enum4linux/ ) on " . scalar(localtime) . "\n";
print_heading("Target Information");
print "Target ........... $global_target\n";
print "RID Range ........ $global_rid_range\n";
print "Username ......... '$global_username'\n";
print "Password ......... '$global_password'\n";
print "Known Usernames .. " . join(", ", @global_known_usernames) . "\n";
print "\n";
# Basic enumeration, check session
get_workgroup();
get_nbtstat() if $opts{'n'};
make_session();
get_ldapinfo() if $opts{'l'};
get_domain_sid();
get_os_info() if $opts{'o'};
# enum-compatible functions
enum_users() if $opts{'U'};
enum_machines() if $opts{'M'};
enum_names() if $opts{'N'};
enum_shares() if $opts{'S'};
enum_password_policy() if $opts{'P'};
enum_groups() if $opts{'G'};
enum_dom_groups() if $opts{'G'};
enum_lsa_policy() if $opts{'L'};
# extra stuff that runs slowly
enum_users_rids() if $opts{'r'};
enum_shares_unauth() if $opts{'s'};
get_printer_info() if $opts{'i'};
print "enum4linux complete on " . scalar(localtime) . "\n\n";
sub get_nbtstat {
print_heading("Nbtstat Information for $global_target");
my $output = `nmblookup -A '$global_target' 2>&1`;
$output = nbt_to_human($output);
print "$output\n";
}
sub get_domain_sid {
print_heading("Getting domain SID for $global_target");
my $command = "rpcclient -W '$global_workgroup' -U'$global_username'\%'$global_password' $global_target -c 'lsaquery' 2>&1";
print_verbose("Attempting to get domain SID with command: $command\n") if $verbose;
my $domain_sid_text = `$command`;
chomp $domain_sid_text;
print $domain_sid_text;
print "\n";
if ($domain_sid_text =~ /Domain Sid: S-0-0/) {
print_plus("Host is part of a workgroup (not a domain)\n");
} elsif ($domain_sid_text =~ /Domain Sid: S-\d+-\d+-\d+-\d+-\d+-\d+/) {
print_plus("Host is part of a domain (not a workgroup)\n");
} else {
print_plus("Can't determine if host is part of domain or part of a workgroup\n");
}
}
# Get workgroup from nbstat info - we need this for lots of rpcclient calls
sub get_workgroup {
print_heading("Enumerating Workgroup/Domain on $global_target");
print_verbose("Attempting to get domain name with command: nmblookup -A '$global_target'\n") if $verbose;
# Workgroup might already be known - e.g. from command line or from get_os_info()
unless ($global_workgroup) {
print "target is tainted\n" if tainted($global_target); # DEBUG
$global_workgroup = `nmblookup -A '$global_target'`; # Global var. Erg!
($global_workgroup) = $global_workgroup =~ /\s+(\S+)\s+<00> - <GROUP>/s;
unless (defined($global_workgroup)) {
# dc.example.org. hostmaster.example.org. 1 900 600 86400 3600
$global_workgroup = `dig +short 0.in-addr.arpa`;
($global_workgroup) = $global_workgroup =~ /.*\. hostmaster\.(.*?)\. .*/s;
if (defined($global_workgroup)) {
print "[+] Domain guessed: $global_workgroup\n";
} else {
$global_workgroup = "WORKGROUP";
print_error("Can\'t find workgroup/domain\n");
print "\n";
return;
}
}
unless (defined($global_workgroup) and $global_workgroup =~ /^[A-Za-z0-9_\.\-]+$/) {
print_error("Workgroup \"$global_workgroup\"contains some illegal characters\n");
exit 1;
}
}
print_plus("Got domain/workgroup name: $global_workgroup\n");
}
# Get long domain name via LDAP
# We don't do this by default because LDAP ports might not be present, or firewalled.
sub get_ldapinfo {
print_heading("Getting information via LDAP for $global_target");
my $command = "ldapsearch -x -h '$global_target' -p 389 -s base namingContexts 2>&1";
print_verbose("Attempting to long domain name: $command\n") if $verbose;
unless ($odp_present{"ldapsearch"}) {
print_error("Dependent program \"ldapsearch\" not present. Skipping this check. Install ldapsearch to fix.\n\n");
return 0;
}
my $output = `$command`;
if ($output =~ /ldap_sasl_bind/) {
print_error("Connection error\n");
return 0;
}
my $parent = 0;
foreach my $line (split "\n", $output) {
if ($line =~ /namingContexts: DC=DomainDnsZones/ or $line =~ /namingContexts: DC=ForestDnsZones/) {
$parent = 1;
} elsif ($line =~ /namingContexts:\s+(DC=[^,]+,DC=.*)/) {
my $long_domain = $1;
$long_domain =~ s/DC=//g;
$long_domain =~ s/,/./g;
print_plus("Long domain name for $global_target: $long_domain\n");
}
}
if ($parent == 1) {
print_plus("$global_target appears to be a root/parent DC\n");
} else {
print_plus("$global_target appears to be a child DC\n");
}
}
# See if we can connect using a null session or supplied credentials
sub make_session {
print_heading("Session Check on $global_target");
my $command = "smbclient -W '$global_workgroup' //'$global_target'/ipc\$ -U'$global_username'\%'$global_password' -c 'help' 2>&1";
print_verbose("Attempting to make null session using command: $command\n") if $verbose;
my $os_info = `$command`;
chomp $os_info;
if ($os_info =~ /protocol negotiation failed: NT_STATUS_CONNECTION_RESET/) {
print_error("Protocol mismatch. smbclient doesn\'t support the same protocol versions as the server. You likely need to install a later version of Samba.\n");
}
if ($os_info =~ /case_sensitive/) {
print_plus("Server $global_target allows sessions using username '$global_username', password '$global_password'\n");
} else {
print_error("Server doesn't allow session using username '$global_username', password '$global_password'. Aborting remainder of tests.\n");
exit 1;
}
# Use this info to set workgroup if possible
unless ($global_workgroup) {
($global_workgroup) = $os_info =~ /Domain=\[([^]]*)\]/;
print_plus("Got domain/workgroup name: $global_workgroup\n");
}
}
# Get OS info
sub get_os_info {
print_heading("OS information on $global_target");
my $command = "smbclient -W '$global_workgroup' //'$global_target'/ipc\$ -U'$global_username'\%'$global_password' -c 'q' 2>&1";
print_verbose("Attempting to get OS info with command: $command\n") if $verbose;
my $os_info = `$command`;
chomp $os_info;
if (defined($os_info)) {
if ($os_info =~ /(Domain=[^\n]+)/s) {
($os_info) = $os_info =~ /(Domain=[^\n]+)/s;
print_plus("Got OS info for $global_target from smbclient: ");
print "$os_info\n";
} else {
print_error("Can't get OS info with smbclient\n");
}
}
$command = "rpcclient -W '$global_workgroup' -U'$global_username'\%'$global_password' -c 'srvinfo' '$global_target' 2>&1";
print_verbose("Attempting to get OS info with command: $command\n") if $verbose;
$os_info = `$command`;
if (defined($os_info)) {
if ($os_info =~ /error: NT_STATUS_ACCESS_DENIED/) {
print_error("Can't get OS info with srvinfo\n");
} else {
print_plus("Got OS info for $global_target from srvinfo: ");
print "$os_info\n";
}
}
}
sub enum_password_policy {
print_heading("Password Policy Information for $global_target");
my $command = "polenum '$global_username':'$global_password'\@'$global_target' 2>&1";
unless ($odp_present{"polenum"}) {
print_error("Dependent program \"polenum\" not present. Skipping this check. Download polenum from http://labs.portcullis.co.uk/application/polenum/\n\n");
return 0;
}
print_verbose("Attempting to get Password Policy info with command: $command\n") if $verbose;
my $passpol_info = `$command`;
chomp $passpol_info;
if (defined($passpol_info)) {
if ($passpol_info =~ /Account Lockout Threshold/) {
print $passpol_info;
} elsif ($passpol_info =~ /Error Getting Password Policy: Connect error/) {
print_error("Can't connect to host with supplied credentials.\n");
} else {
print_error("Unexpected error from polenum:\n");
print $passpol_info;
}
} else {
print_error("polenum gave no output.\n");
}
$command = "rpcclient -W '$global_workgroup' -U'$global_username'\%'$global_password' '$global_target' -c \"getdompwinfo\" 2>&1";
print_verbose("Attempting to get Password Policy info with command: $command\n") if $verbose;
$passpol_info = `$command`;
chomp $passpol_info;
print "\n";
if (defined($passpol_info) and $passpol_info !~ /ACCESS_DENIED/) {
print_plus("Retieved partial password policy with rpcclient:\n\n");
if ($passpol_info =~ /password_properties: 0x[0-9a-fA-F]{7}0/) {
print "Password Complexity: Disabled\n";
} elsif ($passpol_info =~ /password_properties: 0x[0-9a-fA-F]{7}1/) {
print "Password Complexity: Enabled\n";
}
if ($passpol_info =~ /min_password_length: (\d+)/) {
my $minlen = $1;
print "Minimum Password Length: $minlen\n";
}
} else {
print_error("Failed to get password policy with rpcclient\n");
}
print "\n";
}
sub enum_lsa_policy {
print_heading("LSA Policy Information on $global_target");
print_error("Not implemented in this version of enum4linux.\n");
}
sub enum_machines {
print_heading("Machine Enumeration on $global_target");
my @dm_rids;
# First, get the RID list
my $command = "rpcclient -W '$global_workgroup' -U'$global_username'\%'$global_password' -c 'querygroupmem 0x203' '$global_target' 2>&1";
print_verbose("Running command: $command\n") if $verbose;
my $output = `$command`;
if ($output) {
# Clean up the output and extract RIDs
my @rids_hex = $output =~ /rid:\[(0x[a-fA-F0-9]+)\]/g;
@dm_rids = @rids_hex;
print_verbose("The array contains " . scalar(@dm_rids) . " items\n") if $verbose;
# Set the array chunk sizes
my $maxarraycount = scalar(@dm_rids);
my $arraystart = 0;
my $arraycount = 500;
while ($arraystart < $maxarraycount) {
my $arrayend = ($arraystart + $arraycount > $maxarraycount) ? $maxarraycount : $arraystart + $arraycount;
my @temparray = @dm_rids[$arraystart..($arrayend - 1)];
print_verbose("Testing from $arraystart to $arrayend\n") if $verbose;
# Flatten the array into a space-separated string
my $tempstring = join(' ', @temparray);
# Run the rpcclient command for this batch of RIDs
my $samlookup_cmd = "rpcclient -W '$global_workgroup' -U'$global_username'\%'$global_password' -c 'samlookuprids domain $tempstring' '$global_target' 2>&1";
print_verbose("Running command: $samlookup_cmd\n") if $verbose;
my $result = `$samlookup_cmd`;
# Extract both machine names and corresponding RIDs
while ($result =~ /rid\s(0x[a-fA-F0-9]+):\s(\S+\$)/g) {
my $rid = $1;
my $machine = $2;
print "machine:[$machine] rid:[$rid]\n";
}
# Increment for the next batch
$arraystart += $arraycount;
}
} else {
print_error("No response using rpcclient querygroupmem\n");
}
print "\n";
}
sub enum_names {
print_heading("Name Enumeration on $global_target");
print_error("Not implemented in this version of enum4linux.\n");
}
sub enum_groups {
print_heading("Groups on $global_target");
foreach my $grouptype ("builtin", "domain") {
# Get list of groups
my $command = "rpcclient -W '$global_workgroup' -U'$global_username'\%'$global_password' '$global_target' -c 'enumalsgroups $grouptype' 2>&1";
if ($grouptype eq "domain") {
print_verbose("Getting local groups with command: $command\n") if $verbose;
print_plus(" Getting local groups:\n");
} else {
print_verbose("Getting $grouptype groups with command: $command\n") if $verbose;
print_plus("Getting $grouptype groups:\n");
}
my $groups_string = `$command`;
if ($groups_string =~ /error: NT_STATUS_ACCESS_DENIED/) {
if ($grouptype eq "domain") {
print_error("Can't get local groups: NT_STATUS_ACCESS_DENIED\n");
} else {
print_error("Can't get $grouptype groups: NT_STATUS_ACCESS_DENIED\n");
}
} else {
($groups_string) = $groups_string =~ /(group:.*)/s;
$groups_string = "" unless defined($groups_string);
print $groups_string;
}
# Get group members
my %rid_of_group = $groups_string =~ /\[([^\]]+)\]/sg;
if ($grouptype eq "domain") {
print_plus(" Getting local group memberships:\n");
} else {
print_plus(" Getting $grouptype group memberships:\n");
}
foreach my $groupname (keys %rid_of_group) {
$groupname =~ s/'/'\\''/g;
$rid_of_group{$groupname} =~ s/^0x//;
$rid_of_group{$groupname} = hex($rid_of_group{$groupname});
$command = "net rpc group members '$groupname' -W '$global_workgroup' -I '$global_target' -U'$global_username'\%'$global_password' 2>&1\n";
print_verbose("Running command: $command\n") if $verbose;
my $members = `$command`;
my @members = split "\n", $members;
foreach my $m (@members) {
print colored("Group: ", 'magenta');
print "$groupname' (RID: " . $rid_of_group{$groupname} . ") has member: $m\n";
}
}
if ($global_detailed) {
foreach my $groupname (keys %rid_of_group) {
print_plus("Getting detailed info for group $groupname (RID: " . $rid_of_group{$groupname} . ")\n");
get_group_details_from_rid($rid_of_group{$groupname});
}
}
}
}
sub enum_dom_groups {
# Get list of groups
my $command = "rpcclient -W '$global_workgroup' -U'$global_username'\%'$global_password' '$global_target' -c \"enumdomgroups\" 2>&1";
print_verbose("Getting domain groups with command: $command\n") if $verbose;
print_plus(" Getting domain groups:\n");
my $groups_string = `$command`;
if ($groups_string =~ /error: NT_STATUS_ACCESS_DENIED/) {
print_error("Can't get domain groups: NT_STATUS_ACCESS_DENIED\n");
} else {
($groups_string) = $groups_string =~ /(group:.*)/s;
$groups_string = "" unless defined($groups_string);
print $groups_string;
}
# Get group members
my %rid_of_group = $groups_string =~ /\[([^\]]+)\]/sg;
print_plus(" Getting domain group memberships:\n");
foreach my $groupname (keys %rid_of_group) {
$groupname =~ s/'/'\\''/g;
$rid_of_group{$groupname} =~ s/^0x//;
$rid_of_group{$groupname} = hex($rid_of_group{$groupname});
$command = "net rpc group members '$groupname' -W '$global_workgroup' -I '$global_target' -U'$global_username'\%'$global_password' 2>&1\n";
print_verbose("Running command: $command\n") if $verbose;
my $members = `$command`;
my @members = split "\n", $members;
foreach my $m (@members) {
print colored("Group: ", 'magenta');
print "'$groupname' (RID: " . $rid_of_group{$groupname} . ") has member: $m\n";
}
}
if ($global_detailed) {
foreach my $groupname (keys %rid_of_group) {
print_plus("Getting detailed info for group $groupname (RID: " . $rid_of_group{$groupname} . ")\n");
get_group_details_from_rid($rid_of_group{$groupname});
}
}
}
sub enum_groups_unauth {
print_heading("Groups on $global_target via RID cycling");
print_error("Not implemented in this version of enum4linux.\n");
}
sub enum_shares {
# Share enumeration
print_heading("Share Enumeration on $global_target");
print_verbose("Attempting to get share list using authentication\n") if $verbose;
# my $shares = `net rpc share -W '$global_workgroup' -I '$global_target' -U'$global_username'\%'$global_password' 2>&1`;
my $command = "smbclient -W '$global_workgroup' -L //'$global_target' -U'$global_username'\%'$global_password' 2>&1";
my $shares = `$command`;
if (defined($shares)) {
if ($shares =~ /NT_STATUS_ACCESS_DENIED/) {
print_error("Can't list shares: NT_STATUS_ACCESS_DENIED\n");
} else {
print "$shares";
}
}
print_plus("Attempting to map shares on $global_target\n");
my @shares = $shares =~ /^[\t ]*?([ \S]+?)[\t ]*?(?:Disk|IPC|Printer)[^\n]*/gms;
foreach my $share (@shares) {
my ($mapping_result, $listing_result, $writing_result) = ("N/A","N/A","N/A");
$share =~ s/'/'\\''/g;
my $command = "smbclient -W '$global_workgroup' //'$global_target'/'$share' -U'$global_username'\%'$global_password' -c dir 2>&1";
print_verbose("Attempting map to share //$global_target/$share with command: $command\n") if $verbose;
my $output = `$command`;
if ($output =~ /NT_STATUS_ACCESS_DENIED listing/ ||
$output =~ /do_list:.*NT_STATUS_ACCESS_DENIED/ ) {
$mapping_result="OK"; $listing_result="DENIED";
} elsif ($output =~ /tree connect failed: NT_STATUS_ACCESS_DENIED/) {
$mapping_result="DENIED"; $listing_result="N/A";
} elsif ($output =~ /NT_STATUS_NO_SUCH_FILE listing/) {
$mapping_result="N/A"; $listing_result="N/A";
} elsif ($output =~ /\n\s+(\.\.|.*?)\s+D.*\d{4}\n/) {
$mapping_result="OK" ; $listing_result="OK";
} else {
print_error("Can't understand response:\n");
print $output;
}
if ($mapping_result eq "OK") {
if ($aggressive) {
print "testing write access " . $share . "\n";
# check for write access
my @chars = ("A".."Z", "a".."z", "0".."9");
my $random_string;
$random_string .= $chars[rand @chars] for 1..8;
$command = "smbclient -W '$global_workgroup' //'$global_target'/'$share' -U'$global_username'\%'$global_password' -c 'mkdir $random_string' 2>&1";
print_verbose("Checking write access to share //$global_target/$share with command: $command\n") if $verbose;
$output = `$command` ;
if ($output =~ /NT_STATUS_ACCESS_DENIED making/) {
$writing_result="DENIED" ;
} elsif (length $output) {
# the command should not give any output, if something was output maybe it's a failure
my $command2 = "smbclient -W '$global_workgroup' //'$global_target'/'$share' -U'$global_username'\%'$global_password' -c dir 2>&1";
print_verbose("Attempting check for directory $random_string on //$global_target/$share with command: $command2\n") if $verbose;
my $output2 = `$command2`;
if ($output2 =~ /.*$random_string.*/) {
$writing_result="OK";
} else {
print_error("Can't understand initial response:\n");
print $output;
print_error("Can't understand second response:\n");
print $output2;
}
} else {
$writing_result="OK";
}
if ($writing_result ne "DENIED") {
# remove the directory we created
$command = "smbclient -W '$global_workgroup' //'$global_target'/'$share' -U'$global_username'\%'$global_password' -c 'rmdir $random_string' 2>&1";
print_verbose("Removing created directory on share //$global_target/$share with command: $command\n") if $verbose;
$output=`$command` ;
if (length $output) {
print_error("rmdir command returned the following:\n");
print $output ;
}
}
}
}
# print results
print "//$global_target/$share\t";
print colored("Mapping: ", 'magenta');
print $mapping_result ;
print colored(" Listing: ", 'magenta');
print $listing_result ;
print colored(" Writing: ", 'magenta');
print $writing_result ;
print "\n" ;
}
}
sub enum_shares_unauth {
print_heading("Brute Force Share Enumeration on $global_target");
print_verbose("Attempting to get share list using bruteforcing\n") if $verbose;
my $shares_file = $global_share_file;
open SHARES, "<$shares_file" or die "[E] Can't open share list file $shares_file: $!\n";
my @shares = <SHARES>;
for (@shares) {chomp};
foreach my $share (@shares) {
# Untaint $share
if ($share =~ /^([a-zA-Z0-9\._\$\-]+)$/) {
$share = $1;
} else {
print_error("Share name $share contains some illegal characters\n");
exit 1;
}
my $result = `smbclient -W '$global_workgroup' //'$global_target'/'$share' -c dir -U'$global_username'\%'$global_password' 2>&1`;
if ($result =~ /blocks of size .* blocks available/) {
print "$share EXISTS, Allows access using username: '$global_username', password: '$global_password'\n";
} elsif ($result =~ /NT_STATUS_BAD_NETWORK_NAME/) {
print "$share doesn't exist\n" if $debug;
} elsif ($result =~ /NT_STATUS_ACCESS_DENIED/) {
print "$share EXISTS\n";
} else {
print $result;
}
}
}
sub enum_users_rids {
print_heading("Users on $global_target via RID cycling (RIDS: $global_rid_range)");
my $sid;
my %sids = ();
my $logon;
my $cleansid;
# Get SID - try other known usernames if necessary
foreach my $known_username (@global_known_usernames) {
my $command = "rpcclient -W '$global_workgroup' -U'$global_username'\%'$global_password' '$global_target' -c 'lookupnames $known_username' 2>&1";
print_verbose("Attempting to get SID from $global_target with command: $command\n") if $verbose;
print_verbose("Assuming that user \"$known_username\" exists\n") if $verbose;
$logon = "username '$global_username', password '$global_password'";
$sid = `$command`;
if ($sid =~ /NT_STATUS_ACCESS_DENIED/) {
print_error("Couldn't get SID: NT_STATUS_ACCESS_DENIED. RID cycling not possible.\n");
last;
} elsif ($sid =~ /NT_STATUS_NONE_MAPPED/) {
print_verbose("User \"$known_username\" doesn't exist. User enumeration should be possible, but SID needed...\n") if $verbose;
next;
} elsif ($sid =~ /S-1-5-21-[\d-]+-\d+\s+/) {
($cleansid) = $sid =~ /(S-1-5-21-[\d-]+)-\d+\s+/;
if (defined($sids{$cleansid})) {
print_info("Found new SID: ");
print "$cleansid\n";
}
$sids{$cleansid} = 1;
next;
} elsif ($sid =~ /S-1-5-[\d-]+-\d+\s+/) {
($cleansid) = $sid =~ /(S-1-5-[\d-]+)-\d+\s+/;
if (defined($sids{$cleansid})) {
print_info("Found new SID: ");
print "$cleansid\n";
}
$sids{$cleansid} = 1;
next;
} elsif ($sid =~ /S-1-22-[\d-]+-\d+\s+/) {
($cleansid) = $sid =~ /(S-1-22-[\d-]+)-\d+\s+/;
if (defined($sids{$cleansid})) {
print_info("Found new SID: ");
print "$cleansid\n";
}
$sids{$cleansid} = 1;
next;
} else {
next;
}
}
# Get some more SIDs (hopefully)
my $command = "rpcclient -W '$global_workgroup' -U'$global_username'\%'$global_password' '$global_target' -c lsaenumsid 2>&1";
print_verbose("Attempting to get SIDs from $global_target with command: $command\n") if $verbose;
my $sids = `$command`;
foreach my $sid ($sids =~ /(S-[0-9-]+)/g) {
print_verbose("Processing SID $sid\n") if $verbose;
if ($sid =~ /NT_STATUS_ACCESS_DENIED/) {
print_error("Couldn't get SID: NT_STATUS_ACCESS_DENIED. RID cycling not possible.\n");
next;
} elsif ($sid =~ /S-1-5-21-[\d-]+-\d+/) {
($cleansid) = $sid =~ /(S-1-5-21-[\d-]+)-\d+/;
if (defined($sids{$cleansid})) {
print_info("Found new SID: ");
print "$cleansid\n";
}
$sids{$cleansid} = 1;
next;
} elsif ($sid =~ /S-1-5-[\d-]+-\d+/) {
($cleansid) = $sid =~ /(S-1-5-[\d-]+)-\d+/;
if (defined($sids{$cleansid})) {
print_info("Found new SID: ");
print "$cleansid\n";
}
$sids{$cleansid} = 1;
next;
} elsif ($sid =~ /S-1-22-[\d-]+-\d+/) {
($cleansid) = $sid =~ /(S-1-22-[\d-]+)-\d+/;
if (defined($sids{$cleansid})) {
print_info("Found new SID: ");
print "$cleansid\n";
}
$sids{$cleansid} = 1;
next;
} else {
next;
}
}
foreach my $sid (keys %sids) {
if (! defined($sid) and $global_username) {
print_verbose("WARNING: Can\'t get SID. Maybe none of the 'known' users really exist. Try others with -k. Trying null session.\n") if $verbose;
foreach my $known_username (@global_known_usernames) {
my $command = "rpcclient -W '$global_workgroup' -U% '$global_target' -c 'lookupnames $known_username' 2>&1";
print_info("Assuming that user $known_username exists\n");
print_verbose("Trying null username and password: $command\n") if $verbose;
$sid=`$command`;
if ($sid =~ /error: NT_STATUS_ACCESS_DENIED/) {
print_error("Couldn't get SID: NT_STATUS_ACCESS_DENIED\n");
next;
} else {
last;
}
}
($sid) = $sid =~ /(S-1-5-21-[\d-]+)-\d+\s+/;
unless (defined($sid)) {
print_error("Can't get SID using either a null username or the username \"$global_username\"\n");
exit 1;
}
$logon = "username '', password ''"
}
unless (defined($sid)) {
print_error("Couldn't find SID. Aborting RID cycling attempt.\n\n");
return 1;
}
print_plus("Enumerating users using SID $sid and logon $logon\n");
# RID Cycle;
my $last_range = 0;
my @ranges = split(",", $global_rid_range);
foreach my $rid_range (@ranges) {
$last_range = 1 if $rid_range eq $ranges[scalar(@ranges) - 1];
my ($start_rid, $end_rid);
# Check range is of form n-m (n,m integers)
if ($rid_range =~ /\d+-\d+/) {
($start_rid, $end_rid) = $rid_range =~ /^(\d+)-(\d+)$/;
# Check range is of form n (n integer)
} elsif ($rid_range =~ /^\d+$/) {
($start_rid, $end_rid) = ($rid_range, $rid_range);
# Invalid range
} else {
print "WARNING: RID range $rid_range isn't valid. Should be like 10-20 or 1199. Ignoring this range\n";
next;
}
# Check we have an ascending range
if ($start_rid > $end_rid) {
print "WARNING: RID range $rid_range seems to be reversed. Automatically reversing.\n";
($start_rid, $end_rid) = ($end_rid, $start_rid);
}
if ($global_search_until_fail) {
$end_rid = 500000;
}
my $fail_count = 0;
if ($global_search_until_fail and $last_range) {
$end_rid = $heighest_rid;
}
foreach my $rid ($start_rid..$end_rid) {
my $output = `rpcclient -W '$global_workgroup' -U'$global_username'\%'$global_password' '$global_target' -c 'lookupsids $sid-$rid' 2>&1`;
my ($sid_and_user) = $output =~ /(S-\d+-\d+-\d+-[\d-]+\s+[^\)]+\))/;
if ($sid_and_user) {
$sid_and_user =~ s/\(1\)/(Local User)/;
$sid_and_user =~ s/\(2\)/(Domain Group)/;
$sid_and_user =~ s/\(2\)/(Domain User)/;
$sid_and_user =~ s/\(4\)/(Local Group)/;
# Samba servers sometimes claim to have user accounts
# with the same name as the UID/RID. We don't report these.
if ($sid_and_user =~ /-(\d+) .*\\\1 \(/) {
$fail_count++;
} else {
print "$sid_and_user\n" if $sid_and_user =~ /\((Local|Domain) User\)/;
print "$sid_and_user\n" if $sid_and_user =~ /\((Local|Domain) Group\)/;
$fail_count = 0;
get_user_details_from_rid($rid) if $sid_and_user =~ /\((Local|Domain) User\)/;
get_group_details_from_rid($rid) if $sid_and_user =~ /\((Local|Domain) Group\)/;
}
} else {
$fail_count++;
}