Why does dovecot reject password when authorizing by a certificate?

[yuryb]

I have added "auth_debug_password=yes" to "10-logging.conf" and restarted dovecot. But I do not see any information about the password in the logs. Does this mean that the thunderbird does not send the password? Although it asks for the password and I enter one.
New log:
dovecot: master: Warning: Killed with signal 15 (by pid=19769 uid=0 code=kill)
dovecot: master: Dovecot v2.2.24 (a82c823) starting up for imap, pop3
dovecot: imap-login: Valid certificate: /C=UA/ST=Kyiv/L=Kyiv/O=Contoso Ltd: user=<>, rip=10.1.1.59, lip=10.1.1.99, TLS handshaking, session=<pOTtkSNkxNoKAQE7>
dovecot: imap-login: Valid certificate: /C=UA/ST=Kyiv/O=Contoso Ltd/OU=IT/CN=sysadmin/emailAddress=sysadmin at contoso.ua: user=<>, rip=10.1.1.59, lip=10.1.1.99, TLS handshaking, session=<pOTtkSNkxNoKAQE7>
dovecot: auth: passwd-file(sysadmin,10.1.1.59,<pOTtkSNkxNoKAQE7>): Password mismatch
dovecot: imap-login: Disconnected (auth failed, 1 attempts in 99 secs): user=<sysadmin>, method=EXTERNAL, rip=10.1.1.59, lip=10.1.1.99, TLS, session=<pOTtkSNkxNoKAQE7>


Try adding auth_debug_password=yes

Aki



On 01.02.2018 10:27, yuryb wrote:

We have FreeBSD-server with dovecot installed on it as IMAP-server. My user and password database is a text file with plaintext passwords. Clients connect to imap-server via TLS protocol and plaintext password. All works fine. But I want to configure ability to authorize with a client certificates. I have generated a client certificate and imported it to email-client. Also I have configured dovecot to verify client certificates. But email-client cannot authorize: Password mismatch. Why dovecot reject my password in this case? Please help!

My log: dovecot: imap-login: Valid certificate: /C=UA/ST=Kyiv/L=Kyiv/O=Contoso Ltd: user=<>, rip=10.1.1.59, lip=10.1.1.99, TLS handshaking, session=<fp5P5SBkhtMKAQE7>
dovecot: imap-login: Valid certificate: /C=UA/ST=Kyiv/O=Contoso Ltd/OU=IT/CN=sysadmin/emailAddress=sysadmin at contoso.ua: user=<>, rip=10.1.1.59, lip=10.1.1.99, TLS handshaking, session=<fp5P5SBkhtMKAQE7>
dovecot: auth: passwd-file(sysadmin,10.1.1.59,<fp5P5SBkhtMKAQE7>): Password mismatch
dovecot: imap-login: Disconnected (auth failed, 1 attempts in 6 secs): user=<sysadmin>, method=EXTERNAL, rip=10.1.1.59, lip=10.1.1.99, TLS, session=<fp5P5SBkhtMKAQE7>


My configuration:
# 2.2.24 (a82c823): /usr/local/etc/dovecot/dovecot.conf
# OS: FreeBSD 10.2-RELEASE-p20 amd64  ufs
auth_debug = yes
auth_mechanisms = plain login external
auth_ssl_require_client_cert = yes
auth_ssl_username_from_cert = yes
auth_username_format = %Ln
auth_verbose = yes
disable_plaintext_auth = no
lda_mailbox_autocreate = yes
mail_debug = yes
mail_gid = 999
mail_location = maildir:/mnt/mail/%n
mail_uid = 999
namespace inbox {
  inbox = yes
  location =
  mailbox Drafts {
    special_use = \Drafts
  }
  mailbox Junk {
    special_use = \Junk
  }
  mailbox Sent {
    special_use = \Sent
  }
  mailbox "Sent Messages" {
    special_use = \Sent
  }
  mailbox Trash {
    special_use = \Trash
  }
  prefix =
}
passdb {
  args = /usr/local/etc/dovecot/users
  driver = passwd-file
}
protocols = imap pop3
service auth {
  unix_listener /var/spool/postfix/private/auth {
    group = postfix
    mode = 0660
    user = postfix
  }
  unix_listener auth-userdb {
    group = vmail
    mode = 0660
    user = vmail
  }
}
service imap-login {
  inet_listener imaps {
    ssl = yes
  }
}
ssl_ca = </etc/ssl/cacert.pem
ssl_cert = </etc/ssl/certs/dovecot.pem
ssl_dh_parameters_length = 2048
ssl_key = </etc/ssl/private/dovecot.pem
ssl_prefer_server_ciphers = yes
ssl_protocols = !SSLv2 !SSLv3 !TLSv1
ssl_require_crl = no
ssl_verify_client_cert = yes
userdb {
  args = /usr/local/etc/dovecot/users
  driver = passwd-file
}
verbose_ssl = yes





-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://dovecot.org/pipermail/dovecot/attachments/20180201/0dbcd8b2/attachment.html>