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Category:   Application (Calendar)  >   PHP iCalendar Vendors:   phpicalendar.net
PHP iCalendar Input Validation Flaw in 'rss/index.php' Permits Cross-Site Scripting Attacks
SecurityTracker Alert ID:  1016402
SecurityTracker URL:  http://securitytracker.com/id/1016402
CVE Reference:   CVE-2006-3319   (Links to External Site)
Updated:  Aug 12 2008
Original Entry Date:  Jun 28 2006
Impact:   Disclosure of authentication information, Disclosure of user information, Execution of arbitrary code via network, Modification of user information
Exploit Included:  Yes  
Version(s): 2.1 and prior versions
Description:   A vulnerability was reported in PHP iCalendar. A remote user can conduct cross-site scripting attacks.

The 'rss/index.php' script does not properly filter HTML code from user-supplied input in the 'cal' parameter before displaying the input. A remote user can create a specially crafted URL that, when loaded by a target user, will cause arbitrary scripting code to be executed by the target user's browser. The code will originate from the site running the PHP iCalendar 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.

A demonstration exploit URL is provided:

http://[target]/phpicalendar/rss/index.php?cal=[XSS]

botan reported this vulnerability.

The original advisory is available at:

http://kurdishsecurity.blogspot.com/2006/06/kurdish-security-12-php-icalendar.html

[Editor's note: It appears that the error handling process changed from version 2.1 to version 2.2 so that version 2.2 and later versions are not vulnerable.]

Impact:   A remote user can access the target user's cookies (including authentication cookies), if any, associated with the site running the PHP iCalendar 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:   No solution was available at the time of this entry.

[Editor's note: It appears that version 2.2 and later versions are not affected.]

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

Message History:   None.


 Source Message Contents

Subject:  PHP iCalendar Cross Site Scripting

>> K.S Advisory


>> irc.gigachat.net #kurdhack


>> Thanx : Netqurd,Azad,B3g0k,Fearless,Milex,Flot,Zay_Boy,PH,KHA,KCA and other my friends


>> Version : All Version 



Proof Of Concept : 


http://www.site.com/phpicalendar/rss/index.php?cal=[XSS]


Original Advisory : 


http://kurdishsecurity.blogspot.com/2006/06/kurdish-security-12-php-icalendar.html


EoF

 
 


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