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Bug 2232607 - anssi_bp28_high profile's audit rules are invalid on aarch64 architecture
Summary: anssi_bp28_high profile's audit rules are invalid on aarch64 architecture
Keywords:
Status: CLOSED MIGRATED
Alias: None
Product: Red Hat Enterprise Linux 8
Classification: Red Hat
Component: scap-security-guide
Version: 8.9
Hardware: aarch64
OS: Unspecified
unspecified
high
Target Milestone: rc
: ---
Assignee: Vojtech Polasek
QA Contact: BaseOS QE Security Team
URL:
Whiteboard:
Depends On:
Blocks: 2235606
TreeView+ depends on / blocked
 
Reported: 2023-08-17 14:03 UTC by Matus Marhefka
Modified: 2023-08-31 09:10 UTC (History)
4 users (show)

Fixed In Version:
Doc Type: Known Issue
Doc Text:
Cause: The following SCAP rules configuring Audit included in ANSSI BP28 High profile are applied on aarch64 platform, although they are invalid on this architecture. - audit_rules_unsuccessful_file_modification_creat - audit_rules_unsuccessful_file_modification_open - audit_rules_file_deletion_events_rename - audit_rules_file_deletion_events_rmdir - audit_rules_file_deletion_events_unlink - audit_rules_dac_modification_chmod - audit_rules_dac_modification_chown - audit_rules_dac_modification_lchown Consequence: Audit fails to start because its configuration contains invalid syscalls. Workaround (if any): There are two ways how to workaround this: 1. Remove mentioned rules from the datastream via tailoring. 2. edit files in /etc/audit/rules.d and remove the "-S <syscall>" snippets for the following syscalls: - creat - open - rename - rmdir - unlink - chmod - chown - lchown Result: The Audit will be able to start and compliance of the system will not be affected in any way.
Clone Of:
: 2235606 (view as bug list)
Environment:
Last Closed: 2023-08-31 09:10:03 UTC
Type: Bug
Target Upstream Version:
Embargoed:
pm-rhel: mirror+

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Issue Tracker   RHEL-1897 0 None Migrated None 2023-08-31 09:09:55 UTC
Red Hat Issue Tracker RHELPLAN-166048 0 None None None 2023-08-21 08:19:04 UTC

Description Matus Marhefka 2023-08-17 14:03:21 UTC 
Description of problem:
anssi_bp28_high profile's audit rules are invalid on aarch64 architecture.


Version-Release number of selected component (if applicable):
scap-security-guide-0.1.69-1.el8


How reproducible:
deterministic


Steps to Reproduce:
1. Remediate installed system using ANSSI High profile:
oscap xccdf eval --profile xccdf_org.ssgproject.content_profile_anssi_bp28_high --progress --remediate /usr/share/xml/scap/ssg/content/ssg-rhel8-ds.xml
2. Examine auditd service status


Actual results:
# systemctl status -l auditd
● auditd.service - Security Auditing Service
   Loaded: loaded (/usr/lib/systemd/system/auditd.service; enabled; vendor preset: enabled)
   Active: active (running) since Thu 2023-08-17 09:43:05 EDT; 8min ago
     Docs: man:auditd(8)
           https://github.com/linux-audit/audit-documentation
  Process: 769 ExecStartPost=/sbin/augenrules --load (code=exited, status=1/FAILURE)
  Process: 759 ExecStart=/sbin/auditd (code=exited, status=0/SUCCESS)
 Main PID: 766 (auditd)
    Tasks: 2 (limit: 8799)
   Memory: 7.6M
   CGroup: /system.slice/auditd.service
           └─766 /sbin/auditd

Aug 17 09:43:04 hpe-apollo-cn99xx-14-vm-30.khw4.lab.eng.bos.redhat.com systemd[1]: Starting Security Auditing Service...
Aug 17 09:43:04 hpe-apollo-cn99xx-14-vm-30.khw4.lab.eng.bos.redhat.com auditd[766]: No plugins found, not dispatching events
Aug 17 09:43:04 hpe-apollo-cn99xx-14-vm-30.khw4.lab.eng.bos.redhat.com auditd[766]: Init complete, auditd 3.0.7 listening for events (startup state enable)
Aug 17 09:43:05 hpe-apollo-cn99xx-14-vm-30.khw4.lab.eng.bos.redhat.com augenrules[801]: Syscall name unknown: creat
Aug 17 09:43:05 hpe-apollo-cn99xx-14-vm-30.khw4.lab.eng.bos.redhat.com augenrules[801]: There was an error in line 7 of /etc/audit/audit.rules
====

# augenrules --load
Syscall name unknown: creat
There was an error in line 7 of /etc/audit/audit.rules
====

# head -n7 /etc/audit/audit.rules
## This file is automatically generated from /etc/audit/rules.d
-D


-w /etc/selinux/ -p wa -k MAC-policy
-a always,exit -F arch=b32 -S creat -S ftruncate -S open -S openat -S truncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access
-a always,exit -F arch=b64 -S creat -S ftruncate -S open -S openat -S truncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access
====

Even after removing the offending line there are still other errors so audit rules on aarch64 architecture need to be revisited and fixed.


Expected results:
`augenrules --load` successfully loads all configured audit rules.


Additional info:
Comment 1 Matus Marhefka 2023-08-17 14:05:46 UTC 
This issue was hidden as we are also missing service_auditd_enabled rule in the profile, the rule needs to be added into all ANSSI profiles which configure audit.
Comment 3 RHEL Program Management 2023-08-31 09:08:21 UTC 
Issue migration from Bugzilla to Jira is in process at this time. This will be the last message in Jira copied from the Bugzilla bug.
Comment 4 RHEL Program Management 2023-08-31 09:10:03 UTC 
This BZ has been automatically migrated to the issues.redhat.com Red Hat Issue Tracker. All future work related to this report will be managed there.

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