[UNIX] sbox Information Disclosure Vulnerability

From: SecuriTeam (support_at_securiteam.com)
Date: 09/29/03

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Date: 29 Sep 2003 14:10:51 +0200

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      sbox Information Disclosure Vulnerability
    ------------------------------------------------------------------------

    SUMMARY

     <http://stein.cshl.org/WWW/software/sbox/> sbox is "a CGI wrapper script
    that allows web site hosting services to safely grant CGI authoring
    privileges to untrusted clients". A path disclosure vulnerability in the
    product allows remote attackers to determine the path under which the CGI
    directory is installed.

    DETAILS

    Vulnerable systems:
     * sbox version 1.04

    When a query to a non-existent script in /cgi-bin is made, sbox displays
    an error that reveals some information that should not be revealed, such
    as physical path.

    Example:
    Requesting: http://your.vulnerable.site/cgi-bin/non-existent.pl

    Returns:

    Sbox Error
    The sbox program encountered an error while processing this request.
    Please note the time of the error, anything you might have been doing at
    the time to trigger the problem, and forward the information to this
    site's Webmaster (root@your.vulnerable.site).

        Stat failed. /home/jcf/cgi-bin/a.pl: No such file or directory

    sbox version 1.04
    $Id: sbox.c,v 1.9 2000/03/28 20:12:40 lstein Exp $

    Vendor status:
    The vendor has been contacted, currently no solution exist.

    ADDITIONAL INFORMATION

    The information has been provided by <mailto:e2fsck@bol.com.br> e2fsck.

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