netVigilance Security Advisory #23 DGNews version 2.1 XSS Attack Vulnerability Description: DGNews is small and simple but powered news publishing. Easy installation, no programing required. But you can still change whatever you want (for advanced users). Features: add unlimited categories, automatic news image thumbnailed, click count, user comment, print view and many others. Include full lay out, but sure, you can modify what you need. This vulnerability can be exploited only when PHP register_globals = On. External References: Mitre CVE: CVE-2007-0694 NVD NIST: CVE-2007-0694 OSVDB: 34228 Summary: DGNews is small and simple but powered news publishing. Security problem in the product allows attackers to conduct XSS attacks. Advisory URL: http://www.netvigilance.com/advisory0023 Release Date: 05/28/2007 Severity: Risk: Medium CVSS Metrics: Access Vector: Remote Access Complexity: High Authentication: Not-required Confidentiality Impact: Partial Integrity Impact: Partial Availability Impact: Partial Impact Bias: Normal CVSS Base Score: 5.6 Target Distribution on Internet: Low Exploitability: Functional Exploit Remediation Level: Workaround Report Confidence: Uncorroborated Vulnerability Impact: Attack Host Impact: XSS Attack SecureScout Testcase ID: TC 17953 Vulnerable Systems: DGNews version 2.1 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: Dian Gemilang Vendor Status: The Vendor has been notified several times on many different email addresses last on 14 May 2007. The Vendor has not responded. There is no official fix at the release of this Security Advisory. Workaround: In the php.ini file set register_globals = Off. Example: REQUEST: http://[TARGET]/[PRODUCT-DIRECTORY]/footer.php? copyright=<script>alert(document.cookie)</script> REPLY: Will execute <script>alert(document.cookie)</script> Credits: Jesper Jurcenoks Co-founder netVigilance, Inc www.netvigilance.com