Vulnerability Discussion

The use of PIV credentials facilitates standardization and reduces the risk of unauthorized access.

DoD has mandated the use of the CAC to support identity management and personal authentication for systems covered under Homeland Security Presidential Directive (HSPD) 12, as well as making the CAC a primary component of layered protection for national security systems.

Check

Verify the Ubuntu operating system accepts PIV credentials.

Verify the "opensc-pcks11" package is installed on the system with the following command:

$ dpkg -l | grep opensc-pkcs11

ii opensc-pkcs11:amd64 0.15.0-1Ubuntu1 amd64 Smart card utilities with support for PKCS#15 compatible cards

If the "opensc-pcks11" package is not installed, this is a finding.

Fix

Configure the Ubuntu operating system to accept PIV credentials.

Install the "opensc-pkcs11" package using the following command:

$ sudo apt-get install opensc-pkcs11