RHEL 9 must be configured so that the cryptographic hashes of system files match vendor values.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-257823	RHEL-09-214030	SV-257823r1051231_rule	CCI-000366	medium
Description
The hashes of important files such as system executables should match the information given by the RPM database. Executables with erroneous hashes could be a sign of nefarious activity on the system.
STIG			Date
Red Hat Enterprise Linux 9 Security Technical Implementation Guide			2025-05-14

Related Frameworks

4 paths across 3 frameworks

NIST 800-531 mapping

CM-6

1.00

DISA · 2 · disa_xccdf · related
DISA · 2025-01-23 · disa_cci_list · equivalent

NIST 800-1712 mappings

3.4.1

1.00

DISA · 2 · 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

3.4.2

1.00

DISA · 2 · 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-000366

1.00

DISA · 2 · disa_xccdf · related

Details

Check Text (C-257823r1051231_chk)

Verify that RHEL 9 is configured so that the cryptographic hashes of system files match vendor values. List files on the system that have file hashes different from what is expected by the RPM database with the following command: $ sudo rpm -Va --noconfig | awk '$1 ~ /..5/ && $2 != "c"' If there is output, this is a finding.

Fix Text (F-61488r1051230_fix)

Configure RHEL 9 so that the cryptographic hashes of system files match vendor values. Given output from the check command, identify the package that provides the output and reinstall it. The following trimmed example output shows a package that has failed verification, been identified, and been reinstalled: $ sudo rpm -Va --noconfig | awk '$1 ~ /..5/ && $2 != "c"' S.5....T. /usr/bin/znew $ sudo dnf provides /usr/bin/znew [...] gzip-1.10-8.el9.x86_64 : The GNU data compression program [...] $ sudo dnf -y reinstall gzip [...] $ sudo rpm -Va --noconfig | awk '$1 ~ /..5/ && $2 != "c"' [no output]