OSEC

Neohapsis is currently accepting applications for employment. For more information, please visit our website www.neohapsis.com or email hr@neohapsis.com
 
From: error (error_at_lostinthenoise.net)
Date: Sun Feb 09 2003 - 18:31:37 CST

  • Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]

    Vulnerable: gallery version 1.3.3 (other versions not tested)
    Url: gallery.sf.net

    Local exploit.

    Gallery has a security hole where any other user on the same webserver
    can create, modify or destroy photos in a given album directory.

    Also Gallery requires that you turn off safe mode.

    Each gallery setup needs a temp directory and an album directory.

    Gallery accesses the album directory in a manner that requires
    permissions of 755.

    eg:
    drwxr-xr-x 5 www wheel 512 Feb 9 16:02 albums

    and inside albums:
    ls -l
    total 16
    drwxrwxr-x 2 www wheel 3584 Feb 9 16:19 album01
    drwxrwxr-x 2 www wheel 5120 Feb 9 16:25 album02
    -rw-r--r-- 1 www wheel 65 Feb 9 16:02 albumdb.dat
    -rw-r--r-- 1 www wheel 65 Feb 9 16:02 albumdb.dat.bak
    -rw-r--r-- 1 www wheel 0 Feb 9 14:05 albumdb.dat.lock
    -rw-r--r-- 1 www wheel 11 Feb 9 15:42 serial.dat

    As a result anyone who has ever set up a gallery before can just have a
    cgi running as user www (or whatever user apache is running as) move
    files around.

    This can be exploited with everything from SSI, perl to even php.

    So on shared hosting gallery is a bad idea.

    There is no fix for this as of this time.
    This is a product of poor default web application security design.

    -- 
    error <errorlostinthenoise.net>
    

    -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.1 (GNU/Linux)

    iD8DBQA+RvLoKvrsP0edi7gRAn8hAKCXO05yIWkW73h/lXElWPYmfWdZLACgwRAC lJ1JIlMYqEOI9NitvZNJb7M= =FBH/ -----END PGP SIGNATURE-----