Wrong SCAP security policy interface on Centos 8.1.1911

Support for security such as Firewalls and securing linux
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Ricky Tigg
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Joined: 2020/04/06 14:42:55

Wrong SCAP security policy interface on Centos 8.1.1911

Post by Ricky Tigg » 2020/04/06 16:12:04

Tested on QEMU-KVM virtual machine with CentOS-8.1.1911-x86_64-dvd1.iso, CentOS-8.1.1911-x86_64-boot.iso files.

Interface illustrated in centos_8_anaconda_installer_SCAP.png is occidentally not the one illustrated in RHEL 8.0_anaconda_installer_SCAP.png. That indicates an issue. In first illustration, the specified policy has not been applied as there was no mention of matching arguments in file /root/initial-setup-ks.cfg.

Relevant information –from a Fedora system– to enable a security policy on Centos 8.1.1911:

Code: Select all

$ oscap info `rpm -ql scap-security-guide | grep 'centos8-ds.xml$'`
Document type: Source Data Stream
Imported: 2020-03-23T16:38:27

Stream: scap_org.open-scap_datastream_from_xccdf_ssg-rhel8-xccdf-1.2.xml
Generated: (null)
Version: 1.3
	Ref-Id: scap_org.open-scap_cref_ssg-rhel8-xccdf-1.2.xml
WARNING: Datastream component 'scap_org.open-scap_cref_security-data-oval-com.redhat.rhsa-RHEL8.xml' points out to the remote 'https://www.redhat.com/security/data/oval/com.redhat.rhsa-RHEL8.xml'. Use '--fetch-remote-resources' option to download it.
WARNING: Skipping 'https://www.redhat.com/security/data/oval/com.redhat.rhsa-RHEL8.xml' file which is referenced from datastream
		Status: draft
		Generated: 2020-03-23
		Resolved: true
			Title: PCI-DSS v3.2.1 Control Baseline for Red Hat Enterprise Linux 8
				Id: xccdf_org.ssgproject.content_profile_pci-dss
			Title: Standard System Security Profile for Red Hat Enterprise Linux 8
				Id: xccdf_org.ssgproject.content_profile_standard
		Referenced check files:
				system: http://oval.mitre.org/XMLSchema/oval-definitions-5
				system: http://scap.nist.gov/schema/ocil/2
				system: http://oval.mitre.org/XMLSchema/oval-definitions-5
	Ref-Id: scap_org.open-scap_cref_ssg-rhel8-oval.xml
	Ref-Id: scap_org.open-scap_cref_ssg-rhel8-ocil.xml
	Ref-Id: scap_org.open-scap_cref_ssg-rhel8-cpe-oval.xml
	Ref-Id: scap_org.open-scap_cref_security-data-oval-com.redhat.rhsa-RHEL8.xml
	Ref-Id: scap_org.open-scap_cref_ssg-rhel8-cpe-dictionary.xml
centos_8_anaconda_installer_SCAP.png (37.73 KiB) Viewed 248 times
rhelL 8.0_anaconda_installer_SCAP.png
rhelL 8.0_anaconda_installer_SCAP.png (140.66 KiB) Viewed 248 times

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Re: Wrong SCAP security policy interface on Centos 8.1.1911

Post by TrevorH » 2020/04/06 16:42:12

Please raise a bug on bugs.centos.org to report this though as far as I am aware, the security profile is intentionally unsupported on CentOS.
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Ricky Tigg
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Joined: 2020/04/06 14:42:55

Re: Wrong SCAP security policy interface on Centos 8.1.1911

Post by Ricky Tigg » 2020/04/08 15:11:29

CentOS-8.1.1911-x86_64-dvd1.iso file (size 7,6 GB), which is assumed to contain all available SCAP content definitions. is therefore suitable to apply a model illustrated in Kickstart by the following arguments, as an installation relying on that file do not rely on an established network connection.

%addon org_fedora_oscap
content-type = scap-security-guide

That specified add-on makes use of content provided by the scap-security-guide package, which is also assumed present on the boot media. Here are values reported as unsupported:
  • scap_org.open-scap_datastream_from_xccdf_ssg-rhel8-xccdf-1.2.xml, though a valid data stream;
  • scap-security-guide
Therefore the interface to come next when a value was recognized as valid, cannot be reached. That is what wrong interface aimed to express. Valid values, data stream content or URL archive if not both, require an established network connection to reach content definitions in a remote location, which is confirmed by the presence of the Fetch button.

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