Can't authorize as different user in cyradm and sieveshell

[Michael Ulitskiy]

Since nobody answered, I guess, nobody has any idea.
I wonder if anybody uses this feature and it works for you?
I mean I'd like to know if that's just me and something is wrong with my setup or may be that feature isn't functional at all?
Thanks in advance,

Michael

On Thursday, November 17, 2016 06:30:18 PM Michael Ulitskiy via Info-cyrus wrote:
> Hello,
> 
> I'm playing with cyrus-imap 2.5.10 and cyrus-sasl 2.1.26.
> i'm trying to use sieveshell to setup users sieve scripts, but since 
> i don't know users passwords i want to use a special user for authentication
> and authorize as the target user.
> Here's what I have.
> 
> imapd.conf:
> admins: mailadmin
> proxyservers: proxyadmin
> sasl_pwcheck_method: saslauthd
> #sasl_pwcheck_method: alwaystrue
> sasl_mech_list: PLAIN
> allowplaintext: yes
> 
> here's what i do:
> 
> root at rway-imap-vm:~# sieveshell -a proxyadmin -u t4 at virtualcrap.com localhost
> connecting to localhost
> Please enter your password: 
> unable to connect to server at /usr/bin/sieveshell line 191, <STDIN> line 1.
> 
> here's the log:
> Nov 17 18:24:44 rway-imap-vm sieve[2256]: TLS is available.
> Nov 17 18:24:46 rway-imap-vm saslauthd[1169]: pam_userdb(sieve:auth): user 'proxyadmin' granted access
> Nov 17 18:24:46 rway-imap-vm sieve[2256]: badlogin: localhost [127.0.0.1] PLAIN no mechanism available
> Nov 17 18:24:46 rway-imap-vm sieve[2256]: Lost connection to client -- exiting
> 
> as you can see user proxyadmin authenticated successfully, but then something (authorization?) went wrong 
> and it says "PLAIN no mechanism available". 
> this only happens if i try to authorize as different user. if i don't everything works fine:
> 
> root at rway-imap-vm:~# sieveshell -a t4 at virtualcrap.com -u t4 at virtualcrap.com localhost
> connecting to localhost
> Please enter your password: 
> > 
> 
> log:
> Nov 17 18:24:11 rway-imap-vm sieve[2247]: TLS is available.
> Nov 17 18:24:15 rway-imap-vm saslauthd[1167]: pam_userdb(sieve:auth): user 't4 at virtualcrap.com' granted access
> Nov 17 18:24:15 rway-imap-vm sieve[2247]: login: localhost [127.0.0.1] t4 at virtualcrap.com PLAIN User logged in
> 
> the same happends to cyradm:
> root at rway-imap-vm:~# cyradm --user=proxyadmin --authz=t4 at virtualcrap.com --auth=plain localhost
> Password: 
> IMAP Password: 
> 
> log:
> Nov 17 18:26:27 rway-imap-vm saslauthd[1166]: pam_userdb(imap:auth): user 'proxyadmin' granted access
> Nov 17 18:26:27 rway-imap-vm imap[2277]: badlogin: localhost [127.0.0.1] PLAIN [SASL(-4): no mechanism available: Unable to find a callback: 32773]
> 
> but ok without trying to authorize as different user:
> root at rway-imap-vm:~# cyradm --user=t4 at virtualcrap.com --auth=plain localhost
> Password: 
> localhost> 
> Nov 17 18:27:31 rway-imap-vm saslauthd[1167]: pam_userdb(imap:auth): user 't4 at virtualcrap.com' granted access
> Nov 17 18:27:31 rway-imap-vm imap[2276]: login: localhost [127.0.0.1] t4 at virtualcrap.com PLAIN User logged in SESSIONID=<rway-imap.aceinnovative.com-2276-1479425249-1-16233364852996823733>
> 
> Can somebody tell me what I am doing wrong?
> Thanks a lot,
> 
> Michael
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