Bugtraq mailing list archives

Re: Fix for ssh-1.2.27 symlink/bind problem


From: markus.friedl () INFORMATIK UNI-ERLANGEN DE (Markus Friedl)
Date: Tue, 26 Oct 1999 22:07:05 +0200


On Mon, Oct 25, 1999 at 07:05:01PM -0400, Wietse Venema wrote:
I was talking about seteuid(), which leaves real uid == 0, so that
the process remains protected against groping by unprivileged users.

all I was trying to say is:
  1) ssh _did_ use seteuid() for swapping uids (until version 1.2.12. ossh
     and openssh still use seteuid() and are not vulnerable to this attack).
  2) post-ssh-1.2.12 uses a different, more complex approach and failes.


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