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Vulnerability Assessment Details

PHP iCalendar Remote File Inclusion Vulnerability

Vulnerability Assessment Summary
Checks for remote file inclusion vulnerability in PHP iCalendar

Detailed Explanation for this Vulnerability Assessment

Summary :

The remote web server contains a PHP script that is prone to a remote
file include vulnerability.

Description :

The remote host appears to be running PHP iCalendar, a web-based iCal
file viewer / parser written in PHP.

The version of PHP icalendar installed on the remote host fails to
sanitize the 'phpicalendar' cookie before using it in 'index.php' to
include PHP code from a separate file. By leveraging this flaw, an
unauthenticated attacker may be able to view arbitrary files on the
remote host and execute arbitrary PHP code, possibly taken from
third-party hosts. Successful exploitation requires that PHP's
'magic_quotes' setting be disabled, that its 'permit_url_fopen' setting
be enabled, or that a possible hacker be able to place PHP files on the
remote host.

See also :

http://lists.grok.org.uk/pipermail/full-disclosure/2005-October/038142.html

Solution :

Upgrade to a version of PHP iCalendar later than 2.0.1 when it becomes
available.

Network Security Threat Level:

Medium / CVSS Base Score : 6
(AV:R/AC:H/Au:NR/C:P/A:P/I:P/B:N)

Networks Security ID: 15193

Vulnerability Assessment Copyright: This script is Copyright (C) 2005-2006 Tenable Network Security

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