STIGQter: STIG Summary: Riverbed NetIM OS Security Technical Implementation Guide Version: 1 Release: 1 Benchmark Date: 11 Sep 2025:

Ubuntu OS must store only encrypted representations of passwords.

DISA Rule

SV-275657r1148272_rule

Vulnerability Number

V-275657

Group Title

SRG-OS-000073-GPOS-00041

Rule Version

RIIM-OS-611055

Severity

CAT I

CCI(s)

• CCI-004062 - For password-based authentication, store passwords using an approved salted key derivation function, preferably using a keyed hash.

Weight

10

Fix Recommendation

Configure Ubuntu OS to store encrypted representations of passwords.

Add or modify the following line in the "/etc/pam.d/common-password" file:

password [success=1 default=ignore] pam_unix.so obscure sha512 shadow remember=5 rounds=100000

Check Contents

Verify the Ubuntu operating stores only encrypted representations of passwords with the following command:

$ grep pam_unix.so /etc/pam.d/common-password
password [success=1 default=ignore] pam_unix.so obscure sha512 shadow remember=5 rounds=100000

If "sha512" is missing from the "pam_unix.so" line, this is a finding.

Vulnerability Number

V-275657

Documentable

False

Rule Version

RIIM-OS-611055

Severity Override Guidance

Verify the Ubuntu operating stores only encrypted representations of passwords with the following command:

$ grep pam_unix.so /etc/pam.d/common-password
password [success=1 default=ignore] pam_unix.so obscure sha512 shadow remember=5 rounds=100000

If "sha512" is missing from the "pam_unix.so" line, this is a finding.

Check Content Reference

M

Target Key

5706