bugtraq - CVE-2015-5074 - Arbitrary File Upload In X2Engine Inc. X2Engine

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [day] [month] [year] [list]

Message-ID: <C56B81159AD346478B2C9D1487742F0B46790CFB@portcullis-security.com>
Date: Fri, 25 Sep 2015 13:02:08 +0000
From: Portcullis Advisories <advisories@...tcullis-security.com>
To: "'vuln@...unia.com'" <vuln@...unia.com>,
  "'moderators@...db.org'" <moderators@...db.org>,
  "'fulldisclosure@...lists.org'" <fulldisclosure@...lists.org>,
  "'bugtraq@...urityfocus.com'" <bugtraq@...urityfocus.com>
Subject: CVE-2015-5074 - Arbitrary File Upload In X2Engine Inc. X2Engine

Vulnerability title: Arbitrary File Upload In X2Engine Inc. X2Engine
CVE: CVE-2015-5074
Vendor: X2Engine Inc.
Product: X2Engine
Affected version: 4.2
Fixed version: 5.2
Reported by: Simone Quatrini
Details:

It was discovered that authenticated users were able to upload files of any type providing that the file did not have an extension that was listed in the following blacklist:

const EXT_BLACKLIST = '/\.\s*(P<ext>html|htm|js|jsb|mhtml|mht|xhtml|xht|php|phtml|php3|php4|php5|phps|shtml|jhtml|pl|py|cgi|exe|scr|dll|msi|vbs|bat|com|pif|cmd|vxd|cpl|ini|conf|cnf|key|iv|htaccess)\b/i';

However, there is another common (not present in regexp) that allow PHP execution: .PHT. It is therefore possible to execute any PHP code on the remote system.

Further details at:

https://www.portcullis-security.com/security-research-and-downloads/security-advisories/cve-2015-5074/

Copyright:
Copyright (c) Portcullis Computer Security Limited 2015, All rights reserved worldwide. Permission is hereby granted for the electronic redistribution of this information. It is not to be edited or altered in any way without the express written consent of Portcullis Computer Security Limited.

Disclaimer:
The information herein contained may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall the author/distributor (Portcullis Computer Security
Limited) be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.

###############################################################
This email originates from the systems of Portcullis
Computer Security Limited, a Private limited company, 
registered in England in accordance with the Companies 
Act under number 02763799. The registered office 
address of Portcullis Computer Security Limited is: 
Portcullis House, 2 Century Court, Tolpits Lane, Watford, 
United Kingdom, WD18 9RS.  
The information in this email is confidential and may be 
legally privileged. It is intended solely for the addressee. 
Any opinions expressed are those of the individual and 
do not represent the opinion of the organisation. Access 
to this email by persons other than the intended recipient 
is strictly prohibited.
If you are not the intended recipient, any disclosure, 
copying, distribution or other action taken or omitted to be 
taken in reliance on it, is prohibited and may be unlawful. 
When addressed to our clients any opinions or advice 
contained in this email is subject to the terms and 
conditions expressed in the applicable Portcullis Computer 
Security Limited terms of business.
###############################################################

#####################################################################################
This e-mail message has been scanned for Viruses and Content and cleared 
by MailMarshal.
#####################################################################################