[tpop3d-discuss]BUG ? - empty password allows any password

[Jose de Paula Eufrásio Junior]

I just stumbled on that:

user@domain can login in pop3 (tpop3d) but not in imap. looking at the 
database I see that:

password_hash = {crypt}

and a normal user has something like

password_hash = {crypt}HsQP/FxpSt3h2

Then, using any random password I can login in the pop3 account of the 
user. Meaning, users with an incomplete password can use any password to 
login.

I'm using:

tpop3d, version 1.5.3

Available authentication drivers:

  auth-pam         Uses Pluggable Authentication Modules
  auth-mysql       Uses a MySQL database

Available mailbox drivers:

  maildir          Qmail-style maildir
  empty            Empty mailbox

Enabled features:

  Mass virtual hosting
  Suppress C-client metadata

------------
/etc/tpop3d.conf

listen-address: 0.0.0.0
max-children: 200
timeout-seconds: 600

#Onde estao os emails?
mailbox: 
maildir:/var/spool/mail/$(local_part[0])/$local_part/$(user[0])/$(user)/Maildir

#Autenticacao!
auth-pam-enable: false
auth-mysql-enable: true
auth-mysql-database: virtualemail
auth-mysql-username: ****
auth-mysql-password: ****

# Logando

log-facility: local0

# Queries

auth-mysql-pass-query: SELECT concat(domain.path, '/', 
popbox.mbox_name), popbox.password_hash, domain.unix_user, 'maildir' 
FROM popbox, domain WHERE popbox.local_part = '$(local_part)' AND 
popbox.domain_name = '$(domain)' AND popbox.domain_name = domain.domain_name

------------------------------------

thanks

-- 
José de Paula Eufrásio Júnior
Analista de Sistema | CPD
ProInternet do Brasil