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If through a vulnerability assessment, a network security issue is detected for the vulnerability below, applying the appropriate security patches in a timely matter is very important. If you have detected that your system has already been compromised, following CERT's Network Security recovery document will assist with recommended steps for system recovery.
Vulnerability Assessment Details
Tries to upload PHP code using PHP iCalendar
Detailed Explanation for this Vulnerability Assessment
The remote web server contains a PHP application that is affected by
an arbitrary file upload vulnerability.
The remote host appears to be running PHP iCalendar, a web-based iCal
file viewer / parser written in PHP.
The installed version of PHP iCalendar supports iCal publishing yet
does not properly restrict the types of files uploaded and places them
in a web-accessible directory. An unauthenticated attacker can
leverage this issue to upload files with arbitrary PHP code and then
run that code subject to the rights of the web server user id.
Note that successful exploitation of this issue requires that
'$phpicalendar_publishing' be enabled in 'config.inc.php', which is
not the default.
See also :
Edit the application's 'config.inc.php' file and set
'$phpicalendar_publishing' to 0.
Network Security Threat Level:
High / CVSS Base Score : 7.0
Networks Security ID: 17129
Vulnerability Assessment Copyright: This script is Copyright (C) 2006 Tenable Network Security
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