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Message-ID: <54218E0F.3@karmainsecurity.com> Date: Tue, 23 Sep 2014 17:13:19 +0200 From: Egidio Romano <research@...mainsecurity.com> To: bugtraq@...urityfocus.com, fulldisclosure@...lists.org Subject: [FD] [KIS-2014-10] X2Engine <= 4.1.7 (FileUploadsFilter.php) Unrestricted File Upload Vulnerability -------------------------------------------------------------------------------- X2Engine <= 4.1.7 (FileUploadsFilter.php) Unrestricted File Upload Vulnerability -------------------------------------------------------------------------------- [-] Software Link: http://www.x2engine.com/ [-] Affected Versions: Version 4.1.7 and probably prior versions. [-] Vulnerability Description: The vulnerability exists because of the FileUploadsFilter::EXT_BLACKLIST constant, which is a regular expression for blacklisted files. Due to a lack of case-insensitive matching, the global upload filter could be bypassed by uploading a malicious file with capital letters within the extension. This can be exploited to upload and execute arbitrary PHP scripts if X2Engine is running on a case-insensitive filesystem or if the web server is configured to handle files’ extensions in a case-insensitive fashion. [-] Solution: Update to version 4.2 or later. [-] Disclosure Timeline: [01/08/2014] - Vendor notified [02/08/2014] - CVE number requested [16/08/2014] - CVE number assigned [05/09/2014] - Version 4.2 released [23/09/2014] - Public disclosure [-] CVE Reference: The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CVE-2014-5298 to this vulnerability. [-] Credits: Vulnerability discovered by Egidio Romano. [-] Original Advisory: http://karmainsecurity.com/KIS-2014-10 _______________________________________________ Sent through the Full Disclosure mailing list http://nmap.org/mailman/listinfo/fulldisclosure Web Archives & RSS: http://seclists.org/fulldisclosure/
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