full-disclosure - Fa Name version 1.0 Multiple XSS Attack Vulnerabilities

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Message-ID: <48694F52.6040300@netvigilance.com>
Date: Mon, 30 Jun 2008 17:25:38 -0400
From: securityresearch <securityresearch@...vigilance.com>
To: full-disclosure@...ts.grok.org.uk
Subject: Fa Name version 1.0 Multiple XSS Attack
	Vulnerabilities

netVigilance Security Advisory #43

Fa Name version 1.0 Multiple XSS Attack Vulnerabilities
Description:
Fa Name 
(http://webscripts.softpedia.com/script/Content-Management/Fa-Name-41229.html) 
is useful portal (CMS) for .name websites. You can have a simple portal 
but useful one for you domain names and by using this portal you can 
show your complete information like photo, identification, projects and 
history to the others.

Successful exploitation requires PHP magic_quotes_gpc set to Off on the 
server for the first vulnerability and register_globals set to On for 
the third.
External References:
Mitre CVE: CVE-2007-3653
NVD NIST: CVE-2007-3653
OSVDB:

Summary:
Fa Name is useful portal (CMS) for .name websites.
Security problem in the product allows attackers to conduct XSS attacks.

Advisory URL:
http://www.netvigilance.com/advisory0043

Release Date: June 30th 2008

CVSS Version 2 Metrics:

Base Metrics:
Exploitability Metrics:
Access Vector: Network
Access Complexity: Medium
Authentication: None
Impact Metrics:
Confidentiality Impact: None
Integrity Impact: Partial
Availability Impact: None
Temporal Metrics:
Exploitability: Functional
Remediation Level: Workaround
Report Confidence: Uncorroborated

CVSS Version 2 Vectors:

Base Vector: “AV:N/AC:L/Au:N/C:N/I:P/A:N”
Temporal Vector: “E:F/RL:W/RC:UR”

CVSS Version 2 Scores:

Base Score: 4.3
Impact Subscore: 2.9
Exploitability Subscore: 8.6
Temporal Score: 3.7
SecureScout Testcase ID: TC 17973

Vulnerable Systems:
Fa Name version 1.0

Vulnerability Type:
XSS (Cross-Site Scripting) to force a web-site to display malicious 
contents to the target, by sending a specially crafted request to the 
web-site. The vulnerable web-site is not the target of attack but is 
used as a tool for the hacker in the attack of the victim (visitor to 
attached vulnerable website).

Vendor:
FaScript

Vendor Status:
The Vendor has been notified

Workaround:
In the php.ini file set register_globals = Off or/and magic_quotes_gpc = On.

Example:
XSS Attack Vulnerability 1:
REQUEST:
http://[TARGET]/[FANAME-DIRECTORY]/index.php?key="><script>alert(document.cookies)</script>
REPLY:
will execute <script>alert(document.cookie)</script>.

XSS Attack Vulnerability 2:
REQUEST:
http://[TARGET]/[FANAME-DIRECTORY]/index.php?desc="><script>alert(document.cookies)</script>
REPLY:
will execute <script>alert(document.cookie)</script>.

XSS Attack Vulnerability 3:

REQUEST:
http://[TARGET]/[FANAME-DIRECTORY]/page.php?name=<script>alert(document.cookies)</script>
REPLY:
will execute <script>alert(document.cookie)</script>.
Credits:
Jesper Jurcenoks
Co-founder netVigilance, Inc
www.netvigilance.com

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