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RHEL 10 must be configured so that the Network File System (NFS) is configured to use RPCSEC_GSS.

Overview

Finding IDVersionRule IDIA ControlsSeverity
V-281231RHEL-10-700115SV-281231r1166645_ruleCCI-000213medium
Description
When an NFS server is configured to use RPCSEC_SYS, a selected userid and groupid are used to handle requests from the remote user. The userid and groupid could mistakenly or maliciously be set incorrectly. The RPCSEC_GSS method of authentication uses certificates on the server and client systems to more securely authenticate the remote mount request.
STIGDate
Red Hat Enterprise Linux 10 Security Technical Implementation Guide2026-03-11

Related Frameworks

4 paths across 3 frameworks
NIST 800-531 mapping
AC-3
1.00
  • DISA · V1R1 · disa_xccdf · related
  • DISA · 2025-01-23 · disa_cci_list · equivalent
NIST 800-1712 mappings
3.1.1
1.00
  • DISA · V1R1 · disa_xccdf · related
  • DISA · 2025-01-23 · disa_cci_list · equivalent
  • NIST · Rev 2 (Feb 2020, errata Jan 2021) · nist_800_171_app_d · equivalent
3.1.2
1.00
  • DISA · V1R1 · disa_xccdf · related
  • DISA · 2025-01-23 · disa_cci_list · equivalent
  • NIST · Rev 2 (Feb 2020, errata Jan 2021) · nist_800_171_app_d · equivalent
CCI1 mapping
CCI-000213
1.00
  • DISA · V1R1 · disa_xccdf · related

Details

Check Text (C-281231r1166645_chk)

Note: If no NFS mounts are configured, this requirement is not applicable. Verify RHEL 10 has the "sec" option configured for all NFS mounts with the following command: $ sudo grep nfs /etc/fstab 192.168.22.2:/mnt/export /data nfs4 rw,nosuid,nodev,noexec,sync,soft,sec=krb5p:krb5i:krb5 If the system is mounting file systems via NFS and has the sec option without the "krb5:krb5i:krb5p" settings, the "sec" option has the "sys" setting, or the "sec" option is missing, this is a finding.

Fix Text (F-85697r1166644_fix)

Configure RHEL 10 so that the "/etc/fstab" file "sec" option is defined for each NFS mounted file system, and the "sec" option does not have the "sys" setting. Ensure the "sec" option is defined as "krb5p:krb5i:krb5".