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Bug 2130185 - Offline remediation of fstab permissions fails in Image Builder
Summary: Offline remediation of fstab permissions fails in Image Builder
Keywords:
Status: CLOSED ERRATA
Alias: None
Deadline: 2023-08-28
Product: Red Hat Enterprise Linux 8
Classification: Red Hat
Component: scap-security-guide
Version: 8.7
Hardware: Unspecified
OS: Unspecified
high
high
Target Milestone: rc
: ---
Assignee: Vojtech Polasek
QA Contact: Milan Lysonek
Petr Hybl
URL: https://github.com/ComplianceAsCode/c...
Whiteboard:
Depends On:
Blocks: 2228448 2228476
TreeView+ depends on / blocked
 
Reported: 2022-09-27 12:38 UTC by Evgeny Kolesnikov
Modified: 2023-11-14 17:07 UTC (History)
10 users (show)

Fixed In Version: scap-security-guide-0.1.69-1.el8
Doc Type: Bug Fix
Doc Text:
.Images can now be configured with security profiles SCAP Security Guide rules that configure mount point options have been reworked, and you can now use them also for hardening images when building an operating system image in image builder. As a result, you can now build images with partition configuration aligned with a specific security profile.
Clone Of:
: 2228448 2228476 (view as bug list)
Environment:
Last Closed: 2023-11-14 15:36:38 UTC
Type: Bug
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Issue Tracker RHELPLAN-135016 0 None None None 2022-09-27 12:52:16 UTC
Red Hat Product Errata RHBA-2023:7056 0 None None None 2023-11-14 15:37:31 UTC

Description Evgeny Kolesnikov 2022-09-27 12:38:21 UTC 
Description of problem:
When remediating any of the Restrict Partition Mount Options the remediation fails in offline mode i.e. xccdf_org.ssgproject.content_rule_mount_option_dev_shm_noexec. The remediation script checks the /proc/mounts which is unavailable even if the fstab file has been created.

Version-Release number of selected component (if applicable):
0.1.63

How reproducible:


Steps to Reproduce:
1. Configure a blueprint with moutnpoint options and oscap configuration
2. Build image with osbuild-composer

Actual results:
Remediation does not run at all for this since the evaluation result is unknown.

Expected results:
Offline remediation of the /etc/fstab file

Additional info:

I: oscap: Evaluating definition 'oval:ssg-mount_option_home_nodev:def:1': Add nodev Option to /home.
I: oscap:   Evaluating partition test 'oval:ssg-test_home_partition_nodev_optional_yes:tst:1': nodev on /home optional yes.
I: oscap:     Querying partition object 'oval:ssg-object_home_partition_nodev_optional_yes:obj:1', flags: 0.
I: oscap:     Creating new syschar for partition_object 'oval:ssg-object_home_partition_nodev_optional_yes:obj:1'.
I: oscap:     I will run partition_probe_main:
E: oscap:     Can't open /proc/mounts: errno=2, No such file or directory.
W: oscap:     Can't receive message: 125, Operation canceled.
E: oscap:     Recv: retry limit (0) reached.
I: oscap:   Test 'oval:ssg-test_home_partition_nodev_optional_yes:tst:1' evaluated as (null).

Upstream issue: https://github.com/ComplianceAsCode/content/issues/9342
Comment 2 Evgeny Kolesnikov 2023-04-25 10:32:20 UTC 
The way we evaluate and remediate mount point options in CaC content
has been changed to accommodate 'offline' systems. The content would
now properly detect mount point configuration and change it
accordingly in the IB pipeline environment.

https://github.com/ComplianceAsCode/content/pull/10200
Comment 3 Christophe Besson 2023-07-20 12:10:47 UTC 
One of our customers is experiencing the issue while applying CIS Level 1 Server while using osbuild-composer for RHEL 8.8 as well as RHEL 9.2.
It also has to be fixed for RHEL 9.

Setting the severity as High as we have no workaround to suggest.
Comment 22 errata-xmlrpc 2023-11-14 15:36:38 UTC 
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 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-2023:7056
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