[OpenAFS] Authentication problems with 1.0.4

James Peterson jimpeter@us.ibm.com
Tue, 15 May 2001 11:08:38 -0700

I am currently working on a patch that is supposed to correct the
association of session ID with tokens.  It seems that W2k creates sessions
much more liberally than NT or 9x.  I am requesting thoughts about this

Most relevant seems to be the discussion about security issues of
associating the sessions ID with tokens.  The only mechanism I can see is
looking through the Virtual connections trying to match UserName,
MachineName and Password with a token list.  Some view this approach as a
security violation because it requires having local storage of 3 impt.
fields.   However, I believe that associating only UserName or even
UserName & MachineName with the Virtual connection is not enough because a
remote host could "mimic" MachineName and UserName and use someone's else's
tokens to access their files.

The question I pose is information about windows protection on duplicate
MachineName/UserName on the net and therefore making it unnecessary to
store Password a Virtue Circuit structure.

I also question what is the security risk of having these 3 fields in the
Virtual Circuit structure.

Basically I/We are looking for a way to assocaite a new session (which
seems to be generated with each new DOS prompt on W2k) with

James Peterson
"Integrity is the base of excellence."