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Vulnerability Assessment & Network Security Forums |
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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. Home >> Browse Vulnerability Assessment Database >> CGI abuses >> PHP-Nuke security vulnerability (bb_smilies.php) Vulnerability Assessment Details
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PHP-Nuke security vulnerability (bb_smilies.php) |
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Determine if a remote host is vulnerable to the bb_smilies.php vulnerability Detailed Explanation for this Vulnerability Assessment The remote host seems to be vulnerable to a security problem in PHP-Nuke (bb_smilies.php). The vulnerability is caused by inadequate processing of queries by PHP-Nuke's bb_smilies.php which results in returning the content of any file we desire (the file needs to be world-readable). A similar vulnerability in the same PHP program permits execution of arbitrary code by changing the password of the administrator of bb_smilies. Impact: Every file that the webserver has access to can be read by anyone. It is also possible to change bb_smilies' administrator password and even execute arbitrary commands. Solution: Change the following lines in both bb_smilies.php and bbcode_ref.php: if ($userdata[9] != '') $themes = 'themes/$userdata[9]/theme.php' else $themes = 'themes/$Default_Theme/theme.php' To: if ($userdata[9] != '') $themes = 'themes/$userdata[9]/theme.php' else $themes = 'themes/$Default_Theme/theme.php' if ( !(strstr(basename($themes),'theme.php')) || !(file_exists($themes)) ){ echo 'Invalid Theme' exit } include ('$themes') Or upgrade to the latest version (Version 4.4.1 and above). Network Security Threat Level: Medium Additional information: http://www.securiteam.com/securitynews/Serious_security_hole_in_PHP-Nuke__bb_smilies_.html Networks Security ID: Vulnerability Assessment Copyright: This script is Copyright (C) 2001 SecuriTeam |
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