转：https://hackernoon.com/exploiting-electron-rce-in-exodus-wallet-d9e6db13c374

Exploiting Electron RCE in Exodus wallet

While browsing Twitter I’ve noticed ElectronJS remote code execution vulnerability in protocol handler. That sounds severe. As stated in official description, for application to be vulnerable is enough to register itself as default handler for some protocol. I had one application based on Electron installed on my laptop that I was looking into some time ago — Exodus cryptocurrencies wallet. I knew that it registers itself as a handler for exodus:// URI scheme.

Since no details about vulnerability were presented on the official blog post, I went straight to electron Github looking for recent commits. The following commit was a fix for vulnerability. Biggest change was a newly created file command_line_args.cc which implements few check for command line arguments.

Basically,
the code checks command line arguments against a blacklist. Based on
that, it can be assumed that it is possible to inject command line
arguments via URI handler.
Electron based applications are basically bunch of Javascript and HTML
files rendered by Chromium for front-end and nodejs for back-end. And
Chromium and nodejs is bundled inside main executable file. Those
strings of blacklist in fix commit is command line switches for Chromium
and nodejs. Seems that to exploit vulnerability we only need to find
command line option in Chromium or nodejs that allows to spawn
additional process.

To test if it is really possible to inject arguments to Exodus.exe via protocol I created HTML file:

<!doctype html>
<script>
  window.location = 'exodus://aaaaaaaaa --aaaaa='
</script>

Exodus wallet was launched with the following arguments.

 

Payload was wrapped with double quotes. Nevertheless, double quote was not filtered out or sanitized before passing as command line arguments. The following allowed to inject additional command line switch.

<!doctype html>
<script>
  window.location = 'exodus://aaaaaaaaa" --aaaaa=bbbb'
</script>
 

For remote code execution it is needed to find nice Chromium command line switch that allows to execute additional command. I found page containing nicely summarized list of Chromium command line switches. gpu-launcher looked promising.

— gpu-launcher Extra command line options for launching the GPU process (normally used for debugging). Use like renderer-cmd-prefix.

Time to try it.

<!doctype html>
<script>
  window.location = 'exodus://aaaaaaaaa" --gpu-launcher="cmd" --aaaaa='
</script>
 

Exodus wallet was quick to release an update, it was released shortly after announcement of vulnerability. Also, it does a good job by pushing an update for end users by displaying messages, nevertheless update is not automatic and user still has to confirm an update. Anyway, there is ton of desktop applications based on Electron, so better check if any app running on your machine is based on Electron and make sure it is patched.

转：Exploiting Electron RCE in Exodus wallet的更多相关文章

  1. 幕布V1.1.9最新版漏洞集合

    0X00 前言 幕布本人最早接触是在P神的知识星球里面看到P神推荐的,后来下了个用着还挺好用. 之前一直都放一些零零散散的笔记,最近整理的时候,一时兴起,本着漏洞源于生活的态度,遂对幕布的安全性做了些 ...

  2. vmware漏洞之四：简评USE-AFTER-SILENCE: EXPLOITING A QUIETLY PATCHED UAF IN VMWARE

    转:https://www.zerodayinitiative.com/blog/2017/6/26/use-after-silence-exploiting-a-quietly-patched-ua ...

  3. electron代码审计

    解包 Electron跨平台程序破解https://www.52pojie.cn/thread-563895-1-1.html Electron封装的跨平台程序破解的一般思路: 安装npm(至于如何安 ...

  4. 关于Electron框架应用的安全测试

    Electron框架应用的安全测试 0.Electron相关简介 electron.js是一个运行时框架,它在设计之初就结合了当今最好的Web技术,核心是使用HTML.CSS.JavaScript构建 ...

  5. Electron使用与学习--(页面间的通信)

    目录结构: index.js是主进程js. const electron = require('electron') const app = electron.app const BrowserWin ...

  6. Electron使用与学习--(基本使用与菜单操作)

    对于electron是个新手,下面纯属个人理解.如有错误,欢迎指出.   一.安装 如果你本地按照github上的 # Install the `electron` command globally ...

  7. Electron 不完全快速手册

    Electron能干嘛 Vscode 基于Electron开发的,他是用来开发桌面软件的,可以轻易的跨平台 他的前身是atomshell,图标很丑,不用在意,一点也不像vscode也不用在意.   L ...

  8. Electron中Jquery的引入方式

    原文链接http://huisky.com/blog/16122220522957 Electron默认启用了Node.js的require模块,而jQuery等新版本框架为了支持commondJS标 ...

  9. Electron的环境配置

    原文地址http://huisky.com/blog/161218121551123 本文介绍了Electron的环境配置,包括Electron下载.nodejs下载安装.NPM+Bower安装配置. ...

随机推荐

  1. mysql cpu 占用高

    vi /etc/my.cnf [mysqld]tmp_table_size=200M mysql> show global status like ‘created_tmp%‘; +—————— ...

  2. 前端PHP入门-024-字符串函数-API查看

    数组.字符串和数据库是我们函数里面最.最.最常用的三类函数,数组和数据库我们现在还没有讲到,等讲到的时候我们再来和大家细说. 当然PHP的字符串函数也有很多.我们最常使用的两个系列的字符串: 单字节字 ...

  3. 解决 sun.security.validator.ValidatorException: PKIX path building failed

    今天用java HttpClients写爬虫在访问某Https站点报如下错误: sun.security.validator.ValidatorException: PKIX path buildin ...

  4. Angular测试遇到的小坑

    Angular测试遇到的小坑 Error: Expected to be running in 'ProxyZone', but it was not found 检查doneFn的写法是否正确,位置 ...

  5. matlab前景分割

    用最简单的差分法实现了一下前景分割.使用的mall数据集. 思路是这样的:首先设定一个队列的长度,若读取的图片张数少于队列长度则以当前读取到的图片做平均.否则则以队列中的图片做平均. 这样之后和当前图 ...

  6. MM(Majorize-Minimization, Minorize-Maximization)优化方法

    MM算法思想 MM算法是一种迭代优化方法,它利用函数的凸性来找到原函数的最大值或最小值.当原目标函数\(f(\theta)\)较难优化时,算法不直接对原目标函数求最优解,而去求解逼近于原目标函数的一个 ...

  7. VideoJS 与 Framework7 中 fastclick 冲突问题

    Framework7 由于自动启用  fastclick,会导致在 移动端下使用 video.js,控制条上的 播放和音量按钮 点击的时候会触发两次. 解决办法: 1. 全局禁用 fastclick, ...

  8. 对Feign的请求url 重写

    需求:对当前请求的 url 重新构建 debug feign 的执行可知,重写 LoadBalancerFeignClient 类中的 execute 方法即可控制当前请求的url 代码分析 当引入  ...

  9. DAY1-GO初识（概述）

    一.概述 1.特征 1.1.语法简单:规则严谨.保留指针.但默认阻止指针运算.将切片和字典作为内置类型.更好的维护性: 1.2.并发模型:运行时用GOroutine,一个关键字.简单而自然:搭配cha ...

  10. Linux内核中实现生产者与消费者(避免无效唤醒)【转】

    转自:http://blog.csdn.net/crazycoder8848/article/details/42581399 本文关注的重点是,避免内核线程的无效唤醒,并且主要是关注消费者线程的设计 ...