netVigilance Security Advisory #70
SimpNews version 2.41.03 Multiple XSS Attack Vulnerabilities
Description:
SimpNews is a news system written in PHP. Features: Data stored in MySQL, admin
interface, support for multiple languages, support for multiple instances in
one database, own header, multiple layout settings, support for BBCode
andsmilies, you can assin an icon graphic to every news entry, you can attach a
file to news entries, entries can be put in categories, users can subscribe to
get news sent by email, search entries, users can post comments on news
entries, event calendar, newsticker, option to let users propose news entries.
External References:
Mitre CVE: CVE-2007-4874
NVD NIST: CVE-2007-4874
OSVDB: ID requested but no answer received
BUGTRAQ/BID:
Summary:
SimpNews is a news system written in PHP.
Security problem in the product allows attackers to conduct XSS attacks.
Advisory URL:
http://www.netvigilance.com/advisory0070
Release Date:
09/25/2007
CVSS Version 2 Metrics:
Base Metrics:
Exploitability Metrics:
Access Vector:
Network
Access Complexity:
Low
Authentication:
None
Impact Metrics:
Confidentiality Impact:
Partial
Integrity Impact:
Partial
Availability Impact:
Partial
Temporal Metrics:
Exploitability:
Functional
Remediation Level:
Official Fix
Report Confidence:
Confirmed
CVSS Version 2 Vectors:
Base Vector:
"AV:N/AC:L/Au:N/C:P/I:P/A:P"
Temporal Vector:
"E:F/RL:OF/RC:C"
CVSS Version 2 Scores:
Base Score:
7.5
Impact Subscore:
6.4
Exploitability Subscore:
10
Temporal Score:
6.2
SecureScout Testcase ID:
TC 17989
Vulnerable Systems:
SimpNews version 2.41.03
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.
Vendor:
Bosch IT-Consulting
Vendor Status:
The Vendor has confirmed the problem and has release new version 2.42.01 that
addresses the problem. New version of product was tested and we can confirm
that all vulnerabilities were solved. For more information see vendor
announcement. To download the latest version go to vendors product download
area.
Workaround:
Example:
XSS Attack Vulnerability 1:
REQUEST:
http://[TARGET]/[PRODUCT
DIRECTORY]/admin/layout2b.php?no_rgcheck=true&lang=1&do_login=1&l_username=</td><script>alert(document.cookies)</script><td>
REPLY:
Will execute <script>alert(document.cookie)</script>
XSS Attack Vulnerability 2:
REQUEST:
http://[TARGET]/[PRODUCT
DIRECTORY]/comment.php?lang=en&mode=new&entryref=&backurl="><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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