我正在为同事组建一个Frida测试平台,并且不熟悉JavaScript和Node.JS.我想创建一个单独的JS文件,导入几个其他JS文件,每个文件都有几个函数。但是当我对某些导入其他函数的Node.JS代码使用frida-compile时,REPL解释器不会将函数/变量拉入范围。所以,例如:
我有一个由3个JavaScript文件组成的平面目录:
in1.js:
'use strict';
var a = 'test';
function b() { console.log("function b"); };
in2.js:
'use strict';
var c = 'test2';
var d = function () { console.log("function d"); };
in3.js:
'use strict';
require('./in1.js');
require('./in2.js');
然后我在Windows 10 + Python 3.6 + Node.JS 9.5上运行frida-compile:
frida-compile in3.js -o out.js
这导致以下输出:
(function(){function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s}return e})()({1:[function(require,module,exports){
'use strict';
var a = 'test';
function b() {
console.log("function b");
};
},{}],2:[function(require,module,exports){
'use strict';
var c = 'test2';
var d = function () {
console.log("function d");
};
},{}],3:[function(require,module,exports){
'use strict';
require('./in1.js');
require('./in2.js');
},{"./in1.js":1,"./in2.js":2}]},{},[3])
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最后,当我尝试将其导入Frida CLI时,以OWASP iGoat项目为例,我无法访问任何这些功能:
frida -R -f com.swaroop.iGoat -l out.js
____
/ _ | Frida 10.6.52 - A world-class dynamic instrumentation toolkit
| (_| |
> _ | Commands:
/_/ |_| help -> Displays the help system
. . . . object? -> Display information about 'object'
. . . . exit/quit -> Exit
. . . .
. . . . More info at http://www.frida.re/docs/home/
Spawned `com.swaroop.iGoat`. Use %resume to let the main thread start executing!
[Remote::com.swaroop.iGoat]-> %resume
[Remote::com.swaroop.iGoat]-> a
ReferenceError: identifier 'a' undefined
[Remote::com.swaroop.iGoat]-> b
ReferenceError: identifier 'b' undefined
[Remote::com.swaroop.iGoat]-> c
ReferenceError: identifier 'c' undefined
[Remote::com.swaroop.iGoat]-> d
ReferenceError: identifier 'd' undefined
[Remote::com.swaroop.iGoat]-> module
ReferenceError: identifier 'module' undefined
[Remote::com.swaroop.iGoat]-> require
ReferenceError: identifier 'require' undefined
[Remote::com.swaroop.iGoat]-> exports
ReferenceError: identifier 'exports' undefined
[Remote::com.swaroop.iGoat]->
我缺少什么...如何在Frida CLI中访问a,b,c和d?
答案 0 :(得分:1)
我认为您无法直接访问脚本中的任何变量。
读取Frida源代码(特别是来自frida-gum repo的bindings / gumjs / runtime / core.js),它们向变量import subprocess
cmd = "awk '{if(NR>1) print >\"file_\"$1\".txt\"}' test.dat"
p = subprocess.Popen(cmd, stdin=subprocess.PIPE, stdout=subprocess.PIPE, shell=True)
添加属性,这似乎表现为全局对象(一个对象,充当所有全局变量的存储,如浏览器中的global
,用于在REPL中执行的JS。
事实上,脚本中的这种代码:
window
在REPL中定义一个新变量:
global.test = "success";
(还要感谢我向[iPhone::Foo]-> test
"success"
介绍我,现在让我的生活变得更轻松。)