iCal "Calendar Text" Script Insertion Vulnerability
Secunia Advisory: SA19001
Release Date: 2006-02-24
Last Update: 2006-03-02
Popularity: 6,908 views

Critical:
Moderately critical
Impact: Cross Site Scripting
Where: From remote
Solution Status: Unpatched

Software:iCal 3.x

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CVE reference:CVE-2006-0924


Description:
KeyShore and Yog have discovered a vulnerability in iCal, which can be exploited by malicious people to conduct script insertion attacks.

Input passed to the "Calendar Text" field when adding a new event isn't properly sanitised before being used. This can be exploited to inject arbitrary HTML and script code, which will be executed in a user's browser session in context of an affected site when the malicious user data is viewed.

The vulnerability has been confirmed in version 3.10. Other versions may also be affected.

Solution:
Edit the configuration so that only trusted users can add new events.

Provided and/or discovered by:
KeyShore and Yog

Changelog:
2006-03-02: Added CVE reference.


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