A simple PAM authentication module for authenticating Linux users against the AccountHub API.
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Skylar Ittner 7cce25a744 Update readme 5 years ago
LICENSE.txt added first version files 10 years ago
README.md Update readme 5 years ago
pam_custom.py Change #! to python3, show 2fa numbers when typed 6 years ago


PAM for Business Apps

This is a simple project with the goal of allowing Linux PAM authentication using the AccountHub API. Use at your own risk.


Since working with PAM can lead to problems in authentication, keep a shell with root access open while experimenting.

Install the package libpam-python:

sudo apt-get install libpam-python

Edit pam_custom.py and supply the Portal API URL and a valid API key.

Copy the provided pam_custom.py to /lib/security:

sudo cp pam_custom.py /lib/security 

Make a backup of the file /etc/pam.d/common-auth:

sudo cp /etc/pam.d/common-auth /etc/pam.d/common-auth.original

Edit the file /etc/pam.d/common-auth introducing a line in which you declare your custom authentication method. It should be something like this:

auth  [success=2 default=ignore] pam_python.so pam_custom.py

and should be put just before (or after, according to your needs) the other authentication methods.

Some explanations:

  1. "success=2" means that the next two lines should be skipped in case of success (edit as needed)

  2. "pam_python.so" is the name of the shared object that will be called by pam

  3. "pam_custom.py" is the script in python that we provide

Sample /etc/pam.d/common-auth

This config file will gather the username and password and attempt a normal login. If that fails, PAM will try to process the login via this module.

auth    [success=2 default=ignore]      pam_unix.so nullok_secure
auth    [success=1 default=ignore]      pam_python.so pam_custom.py
auth    requisite                       pam_deny.so
auth    required                        pam_permit.so