[UNIX] PHP-Proxima Remote File Access Vulnerability

From: SecuriTeam (support_at_securiteam.com)
Date: 05/18/03

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    Date: 18 May 2003 10:25:46 +0200
    
    

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      PHP-Proxima Remote File Access Vulnerability
    ------------------------------------------------------------------------

    SUMMARY

     <http://www.php-proxima.com/> PHP-Proxima is a website portal system made
    in PHP. PHP-Proxima is actually a different version of php-nuke, very
    similar although it has some changes.

    One of the changes is that PHP-Proxima contains a file called
    autohtml.php. By sending a specific request as shown below, an attacker
    may be able to include local files and therefore read them.

    DETAILS

    Vulnerable systems:
     * PHP-Proxima 6.0 and prior

    Vulnerable code:
    The problem appears here:

    ***************************
    .

    witch($op) {

        case "modload":
    if (!isset($mainfile)) { include("mainfile.php"); }
    $index = 0;
    include("header.php");
    OpenTable();
       include("autohtml/$name");

    .
    ***************************

    Since the case has been coded so poorly in terms of security, a user can
    avoid including mainfile.php and inject anything into $name.

    Example:
    http://victim/autohtml.php?op=modload&mainfile=x&name= filename>

    ADDITIONAL INFORMATION

    The information has been provided by <mailto:mindwarper@linuxmail.org>
    Mind Warper.

    ========================================

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