Re: Information disclosure?

From: Pat Maddox (pergesu_at_gmail.com)
Date: 04/22/05

  • Next message: Jesper Wallin: "Re: Information disclosure?"
    Date: Thu, 21 Apr 2005 21:49:58 -0600
    To: freebsd-security@freebsd.org
    
    

    No, it's not meant to clear the buffer. If you need to clear the
    buffer, just cat a really, really long file.

    On 4/21/05, Jesper Wallin <jesper@hackunite.net> wrote:
    > Hello,
    >
    > For some reason, I thought little about the "clear" command today..
    > Let's say a privileged user (root) logs on, edit a sensitive file (e.g,
    > a file containing a password, running vipw, etc) .. then runs clear and
    > logout. Then anyone can press the scroll-lock command, scroll back up
    > and read the sensitive information.. Isn't "clear" ment to clear the
    > backbuffer instead of printing a full screen of returns? If it does, I'm
    > not sure how that would effect a user running "clear" on a pty (telnet,
    > sshd, screen, etc) ..
    >
    > Best regards,
    > Jesper Wallin
    >
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  • Next message: Jesper Wallin: "Re: Information disclosure?"