Check: RHEL-09-214025
RHEL 9 STIG:
RHEL-09-214025
(in version v2 r3)
Title
RHEL 9 must have GPG signature verification enabled for all software repositories. (Cat I impact)
Discussion
Changes to any software components can have significant effects on the overall security of the operating system. This requirement ensures the software has not been tampered with and that it has been provided by a trusted vendor. All software packages must be signed with a cryptographic key recognized and approved by the organization. Verifying the authenticity of software prior to installation validates the integrity of the software package received from a vendor. This verifies the software has not been tampered with and that it has been provided by a trusted vendor.
Check Content
Verify that all software repositories defined in "/etc/yum.repos.d/" have been configured with "gpgcheck" enabled: $ grep -w gpgcheck /etc/yum.repos.d/*.repo | more gpgcheck = 1 If "gpgcheck" is not set to "1" for all returned lines, this is a finding.
Fix Text
Configure all software repositories defined in "/etc/yum.repos.d/" to have "gpgcheck" enabled: $ sudo sed -i 's/gpgcheck\s*=.*/gpgcheck=1/g' /etc/yum.repos.d/*
Additional Identifiers
Rule ID: SV-257822r1044880_rule
Vulnerability ID: V-257822
Group Title: SRG-OS-000366-GPOS-00153
Expert Comments
CCIs
| Number | Definition |
|---|---|
| CCI-001749 |
The information system prevents the installation of organization-defined software components without verification the software component has been digitally signed using a certificate that is recognized and approved by the organization. |
| CCI-003992 |
Prevent the installation of organization-defined software and firmware components without verification that the component has been digitally signed using a certificate that is recognized and approved by the organization. |
Controls
| Number | Title |
|---|---|
| CM-5(3) |
Signed Components |