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Category:   Application (Forum/Board/Portal)  >   Serendipity Vendors:   s9y.org
Serendipity Multiple Flaws Let Remote Users Conduct Cross-Site Scripting Attacks and Remote Authenticated Users Inject SQL Commands and Execute Arbitrary Code
SecurityTracker Alert ID:  1033558
SecurityTracker URL:  http://securitytracker.com/id/1033558
CVE Reference:   CVE-2015-6943, CVE-2015-6968, CVE-2015-6969   (Links to External Site)
Updated:  Sep 19 2015
Original Entry Date:  Sep 16 2015
Impact:   Disclosure of authentication information, Disclosure of system information, Disclosure of user information, Execution of arbitrary code via network, Modification of user information, User access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  Exploit Included:  Yes  
Version(s): prior to 2.0.2
Description:   Several vulnerabilities were reported in Serendipity. A remote authenticated user can inject SQL commands. A remote authenticated user can execute arbitrary code on the target system. A remote user can conduct cross-site scripting attacks.

The software does not properly validate user-supplied input. A remote authenticated user can supply a specially crafted parameter value to execute SQL commands on the underlying database [CVE-2015-6943].

A remote authenticated user can upload a file with a specially crafted filename extension ('.pht') and then submit a request to the web server to invoke the file, executing arbitrary code on the target system [CVE-2015-6968]. The code will run with the privileges of the target web service.

The 2k11 theme does not properly filter HTML code from user-supplied input in the comments user name field before displaying the input [CVE-2015-6969]. A remote user can cause arbitrary scripting code to be executed by the target user's browser. The code will originate from the Serendipity interface 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.

Tim Coen (of Curesec GmbH) reported these vulnerabilities.

Impact:   A remote authenticated user can execute arbitrary code on the target system.

A remote authenticated user can execute SQL commands on the underlying database.

A remote user can access the target user's cookies (including authentication cookies), if any, associated with the Serendipity interface, access data recently submitted by the target user via web form to the interface, or take actions on the interface acting as the target user.

Solution:   The vendor has issued a fix (1.7.9, 2.0.2).

The vendor's advisory is available at:

http://blog.s9y.org/archives/265-Serendipity-2.0.2-Security-Fix-Release.html

Vendor URL:  blog.s9y.org/archives/265-Serendipity-2.0.2-Security-Fix-Release.html (Links to External Site)
Cause:   Access control error, Input validation error
Underlying OS:  Linux (Any), UNIX (Any), Windows (Any)

Message History:   None.


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