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Message-Id: <201102151112.p1FBC1k0088250@htbridge.ch>
Date: Tue, 15 Feb 2011 12:12:01 +0100 (CET)
From: advisory@...ridge.ch
To: bugtraq@...urityfocus.com
Subject: HTB22830: Multiple XSS vulnerabilities in Gollos
Vulnerability ID: HTB22830
Reference: http://www.htbridge.ch/advisory/multiple_xss_vulnerabilities_in_gollos.html
Product: Gollos
Vendor: Gollos ( http://www.gollos.com/ )
Vulnerable Version: 2.8 and probably prior versions
Vendor Notification: 01 February 2011
Vulnerability Type: XSS (Cross Site Scripting)
Risk level: Medium
Credit: High-Tech Bridge SA - Ethical Hacking & Penetration Testing (http://www.htbridge.ch/)
Vulnerability Details:
User can execute arbitrary JavaScript code within the vulnerable application.
The vulnerability exists due to failure in the "register.aspx", "publication/info.aspx", "user/add.aspx" scripts to properly sanitize user-supplied input in "returnurl" variable. Successful exploitation of this vulnerability could result in a compromise of the application, theft of cookie-based authentication credentials, disclosure or modification of sensitive data.
An attacker can use browser to exploit this vulnerability. The following PoC is available:
http://host/?returnurl="><script>alert(document.cookie)</script>
http://host/register.aspx?returnurl="><script>alert(document.cookie)</script>
https://adminhost/publication/info.aspx?pt=1&returnurl="><script>alert(document.cookie)</script>
https://adminhost/user/add.aspx?returnurl="><script>alert(document.cookie)</script>
user/add.aspx
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