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Category:   Application (Generic)  >   Apache Commons Components Vendors:   Apache Software Foundation
Apache Commons Jelly Custom Doctype Entity Parsing May Let Remote Users Conduct XML External Entity Attacks
SecurityTracker Alert ID:  1039444
SecurityTracker URL:  http://securitytracker.com/id/1039444
CVE Reference:   CVE-2017-12621   (Links to External Site)
Date:  Sep 27 2017
Impact:   Disclosure of system information, Disclosure of user information
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): Jelly 1.0
Description:   A vulnerability was reported in Apache Commons Jelly. A remote user can conduct XML external entity attacks.

A user can create a jelly file containing a specially crafted custom doctype entity in a SYSTEM entity that contains a URL and is used within the jelly file that, when parsed, will load the URL. This may facilitate XML External Entity (XXE) attacks.

Luca Carettoni of Doyensec reported this vulnerability.

Impact:   A remote user can conduct XML external entity attacks.
Solution:   The vendor has issued a fix (1.0.1).

The vendor advisory is available at:

http://commons.apache.org/proper/commons-jelly/security-reports.html

Vendor URL:  commons.apache.org/proper/commons-jelly/security-reports.html (Links to External Site)
Cause:   Access control error

Message History:   None.


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