Ftp – vsftpd will not accept passwords encrypted with MD5

ftpmd5pamvsftpd

I am setting up an server with vsftpd to let virtual users access their space. Now it is fully working but only with CRYPT passwords. So

sudo htpasswd -c /etc/vsftpd/ftpd.passwd phpmyadmin

will not allow me to log in, but

sudo htpasswd -c -d /etc/vsftpd/ftpd.passwd phpmyadmin

will.

/etc/vsftpd.conf

listen=YES
anonymous_enable=NO
local_enable=YES
write_enable=YES
local_umask=022
nopriv_user=vsftpd
virtual_use_local_privs=YES
guest_enable=YES
user_sub_token=$USER
local_root=/var/www/vhosts/$USER.universe.local
chroot_local_user=YES
hide_ids=YES
guest_username=vsftpd

/etc/pam.d/vsftpd

auth required pam_pwdfile.so pwdfile /etc/vsftpd/ftpd.passwd crypt=2
account required pam_permit.so crypt=2

I installed apache2.4.3 from source as well as PHP.

Things I've tried:

  • Google a lot
  • Set crypt=2
  • ask friends
  • use SHA (doesn't work either)
  • update htpasswd and vsftpd

I have been struggeling with this for a week now, I hope u guys can help me further

Best Answer

htpasswd generates MD5 hashes in the Apache format, which you can verify by seeing that they start with $apr1$, but PAM only supports formats that your platform's implementation of crypt(3) implements. For Glibc, the equivalent (MD5-based) would be $1$. You just need to generate the passwords with a different tool. Here's an example:

sh$ openssl passwd -1
Password: 
Verifying - Password: 
$1$vhzHvIYn$2Ro.R0WdLnxrWjHcs5RbA/

You can copy this hash into your ftpd.passwd file in the username:hash format, and it should work.

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