Subject: Re: chroot jail for ftpd
To: None <email@example.com>
From: Jonathan Stone <jonathan@DSG.Stanford.EDU>
Date: 10/18/2001 15:41:57
>Yes, highly verbotten. There is another way to accomplish this. I'll
>take a look, but I would suggest making THAT check dependent on a sysctl
>variable that defaults to "off".
I already suggested the sysctl. Problem is, this check doesnt
acutally close the loophole Thor is worried about, unless you also
(at a minimum) prohibit anyone from setting x bits on files on a
filesystem mounted writable-but-noexec.
(quite aside from the VTOI/i_ffs_mode)