[UNIX] PHP Manpage Lookup File Disclosure

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To: list@securiteam.com
Date: 13 Jan 2004 19:18:58 +0200

The following security advisory is sent to the securiteam mailing list, and can be found at the SecuriTeam web site: http://www.securiteam.com
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  PHP Manpage Lookup File Disclosure
------------------------------------------------------------------------

SUMMARY

 <http://php.amnuts.com> Manpage Lookup is a PHP class that helps you to
build a "manpage" frontend in PHP. A vulnerability in the product allows
remote attackers to view the content of arbitrary files.

DETAILS

The script class.manpagelookup.php is vulnerable to a directory
transversal bug that could lead to disclose any readable (by the HTTPd
process id) files on the remote server.

The problem is located in the function buildManPage(), as the $cmd
variable is not properly filtered allowing any file to be opened.

Exploit:
The following URL will display the content of the /etc/resolv.conf file
http://www.foo.com/manpage/index.php?command=/etc/resolv.conf

Vendor status:
The vulnerability has been fixed by Andy (author). Anyone using this
script should upgrade to the latest version.

ADDITIONAL INFORMATION

The information has been provided by
<mailto:aurelien.cabezon@isecurelabs.com> Cabezon Aurélien.

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