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Description of problem:
RHEL 7 & RHEL 8 (including UBI) fail no_empty_passwords check. However, both platforms have had BZs/RFE closed as won't fix as do not see this as an issue. Based on this it seems that oscap should be changed to not only check for 'nullok', but also if any user has emtpy password (which per pam BZs is not case for fresh RHEL/UBI).
BZ 1640731 RHEL7:authconfig - disable nullok using a flag from authconfig
BZ 1637936 RHEL8:authselect - Default to a "nonullok" profile to authselect
Version-Release number of selected component (if applicable):
pam-1.1.8-23.el7.x86_64
openscap-1.2.17-9.el7.x86_64
How reproducible:
100%
Steps to Reproduce:
1. Start RHEL 7 UBI
# podman run --rm -it registry.access.redhat.com/ubi7/ubi:latest /bin/bash
2. Add repo that has oscap
[rhel-7-server-rpms]
baseurl = http://172.31.0.1/repos/rhel-7-server-rpms
enabled=1
gpgkey = file:///etc/pki/rpm-gpg/RPM-GPG-KEY-redhat-release
3. Install opensacp
# yum install openscap{,-scanner} scap-security-guide
4. Run oscap, will fail no_empty_passwords check
# oscap xccdf eval --fetch-remote-resources --profile standard --rule no_empty_passwords \
/usr/share/xml/scap/ssg/content/ssg-rhel7-xccdf.xml
Actual results:
Title Prevent Login to Accounts With Empty Password
Rule no_empty_passwords
Ident CCE-27286-4
Result fail
Expected results:
Red Hat provided UBI should not fail any oscap standard profile checks
Additional info:
RHEL 7 has even added comment about nullok in the Security Doc
https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/html/security_guide/chap-hardening_your_system_with_tools_and_services#sect-Security_Guide-Workstation_Security-Account_Locking
Red Hat Enterprise Linux 7 shipped it's final minor release on September 29th, 2020. 7.9 was the last minor releases scheduled for RHEL 7.
From intial triage it does not appear the remaining Bugzillas meet the inclusion criteria for Maintenance Phase 2 and will now be closed.
From the RHEL life cycle page:
https://access.redhat.com/support/policy/updates/errata#Maintenance_Support_2_Phase
"During Maintenance Support 2 Phase for Red Hat Enterprise Linux version 7,Red Hat defined Critical and Important impact Security Advisories (RHSAs) and selected (at Red Hat discretion) Urgent Priority Bug Fix Advisories (RHBAs) may be released as they become available."
If this BZ was closed in error and meets the above criteria please re-open it flag for 7.9.z, provide suitable business and technical justifications, and follow the process for Accelerated Fixes:
https://source.redhat.com/groups/public/pnt-cxno/pnt_customer_experience_and_operations_wiki/support_delivery_accelerated_fix_release_handbook
Feature Requests can re-opened and moved to RHEL 8 if the desired functionality is not already present in the product.
Please reach out to the applicable Product Experience Engineer[0] if you have any questions or concerns.
[0] https://bugzilla.redhat.com/page.cgi?id=agile_component_mapping.html&product=Red+Hat+Enterprise+Linux+7
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.
For information on the advisory (scap-security-guide bug fix and enhancement update), and where to find the updated
files, follow the link below.
If the solution does not work for you, open a new bug report.
https://access.redhat.com/errata/RHBA-2021:4265