Re: pam_console bug

[lcamtuf () DIONE IDS PL (Michal Zalewski)]

On Thu, 4 May 2000, Benjamin Smee wrote:

> As a NORMAL user this would load the keymap for ALL consoles. Initially
> I didnt think it was anything new as in the man page I found:
> [...]

Uh, problem is even worse, I decided not to post it... tty users may for
example do PIO_CMAP ioctl, rendering all consoles unusable. Many dangerous
ioctls() are available for users simply having open fd to /dev/ttyX,
fortunately you might call ioctl() only when you're logged on console,
logout causes hang up of the tty device. To do it again, you must log
locally one more time.

_______________________________________________________
Michal Zalewski [lcamtuf () tpi pl] [tp.internet/security]
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