[MRCTF2020]你传你马呢解题

╰+哭是因爲堅強的太久メ 2023-10-06 19:58 7阅读 0赞

1、首先右键查看页面源代码，可知后端支持PHP。

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2、上传一句话木马，果断报错了

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3、将文件后缀名修改为php3/php4/php5/phtml后，在上传，仍然报错。

4、那上传.htaccess文件试试吧

> SetHandler application/x-httpd-php

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bp抓包，修改filename=".htaccess"

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报错了，怀疑是对Content-Type做了过滤，将Content-Type修改为image/jpeg后在上传，上传成功了。

![watermark_type_ZHJvaWRzYW5zZmFsbGJhY2s_shadow_50_text_Q1NETiBAQmlnJkJpcmQ_size_20_color_FFFFFF_t_70_g_se_x_16 2][]

5、将shell.php修改为shell.jpg后上传。

![watermark_type_ZHJvaWRzYW5zZmFsbGJhY2s_shadow_50_text_Q1NETiBAQmlnJkJpcmQ_size_20_color_FFFFFF_t_70_g_se_x_16 3][]

上传成功，并返回了路径。

6、上菜刀连接，根目录下找到flag

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