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Category:   Application (Security)  >   OWASP AntiSamy Vendors:   OWASP
OWASP AntiSamy Input Validation Flaw in 'MagicSAXFilter.java' Lets Remote Users Bypass Security Restrictions
SecurityTracker Alert ID:  1037532
SecurityTracker URL:  http://securitytracker.com/id/1037532
CVE Reference:   CVE-2016-10006   (Links to External Site)
Updated:  Apr 14 2017
Original Entry Date:  Dec 24 2016
Impact:   Disclosure of authentication information, Disclosure of user information, Execution of arbitrary code via network, Modification of user information
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): prior to 1.5.5
Description:   A vulnerability was reported in OWASP AntiSamy. A remote user can bypass security controls on the target system to potentially conduct cross-site scripting attacks.

A remote user can supply a specially crafted tag that supports style with active content to bypass the 'MagicSAXFilter.java' security filter. As a result, a remote user may be able to cause arbitrary scripting code to be executed by the target user's browser. The code will originate from the target site and will run in the security context of that site. As a result, the code will be able to access the target user's cookies (including authentication cookies), if any, associated with the site, access data recently submitted by the target user via web form to the site, or take actions on the site acting as the target user.

Vivek Krishna, Zoho Corporation, reported this vulnerability.

Impact:   A remote user can bypass security controls to potentially access the target user's cookies (including authentication cookies), if any, associated with the target site, access data recently submitted by the target user via web form to the site, or take actions on the site acting as the target user.
Solution:   The vendor has issued a fix (1.5.5).

The vendor advisory is available at:

https://github.com/nahsra/antisamy/issues/2

Vendor URL:  www.owasp.org/index.php/Category:OWASP_AntiSamy_Project (Links to External Site)
Cause:   Input validation error

Message History:   None.


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