STIGQter: STIG Summary: Cloud Linux AlmaLinux OS 9 Security Technical Implementation Guide Version: 1 Release: 7 Benchmark Date: 01 Jul 2026:

AlmaLinux OS 9 must have the Advanced Intrusion Detection Environment (AIDE) package installed.

DISA Rule

SV-269456r1050339_rule

Vulnerability Number

V-269456

Group Title

SRG-OS-000445-GPOS-00199

Rule Version

ALMA-09-045340

Severity

CAT II

CCI(s)

• CCI-002696 - Verify correct operation of organization-defined security functions.
• CCI-002699 - Perform verification of the correct operation of organization-defined security functions: when the system is in an organization-defined transitional state; upon command by a user with appropriate privileges; and/or on an organization-defined frequency.
• CCI-001744 - Implement organization-defined security responses automatically if baseline configurations are changed in an unauthorized manner.

Weight

10

Fix Recommendation

Install AIDE, initialize it, and perform a manual check.

Install AIDE:

$ dnf install aide

Initialize AIDE:

$ /usr/sbin/aide --init

Example output:

Start timestamp: 2024-01-26 09:59:41 +0000 (AIDE 0.16)
AIDE initialized database at /var/lib/aide/aide.db.new.gz

Number of entries: 27922

---------------------------------------------------
The attributes of the (uncompressed) database(s):
---------------------------------------------------

/var/lib/aide/aide.db.new.gz
MD5 : p2o2MgLyXqLfsHGmHWR9nQ==
SHA1 : C5R2JcZCSv3KRz0dMrcQ0JZdZV4=
SHA256 : tUAG19G4gskBEfN+Z9pyVJi13rHA9f7P
d9R5OivGk40=
SHA512 : u26Um0w9hzsMmwZHNssCsmuxVqr9kBx+
Qx+9UBNQCBXlmWFCbq2Yx88BPCU5s/qy
njPIODmPRg4I09jxs5KYjw==


End timestamp: 2024-01-26 09:59:49 +0000 (run time: 0m 8s)

The new database will need to be renamed to be read by AIDE:

$ mv /var/lib/aide/aide.db.new.gz /var/lib/aide/aide.db.gz

Perform a manual check:

$ /usr/sbin/aide --check

Example output:

Start timestamp: 2024-01-26 10:00:50 +0000 (AIDE 0.16)
AIDE found NO differences between database and filesystem. Looks okay!!

Check Contents

Verify that AlmaLinux OS 9 has the AIDE package installed with the following command:

$ dnf list --installed aide

aide.x86_64 0.16-100.el9 @AppStream

If AIDE is not installed, ask the system administrator (SA) how file integrity checks are performed on the system.

If there is no application installed to perform integrity checks, this is a finding.

If AIDE is installed, check if it has been initialized with the following command:

$ /usr/sbin/aide --check

If the output is "Couldn't open file /var/lib/aide/aide.db.gz for reading", this is a finding.

Vulnerability Number

V-269456

Documentable

False

Rule Version

ALMA-09-045340

Severity Override Guidance

Verify that AlmaLinux OS 9 has the AIDE package installed with the following command:

$ dnf list --installed aide

aide.x86_64 0.16-100.el9 @AppStream

If AIDE is not installed, ask the system administrator (SA) how file integrity checks are performed on the system.

If there is no application installed to perform integrity checks, this is a finding.

If AIDE is installed, check if it has been initialized with the following command:

$ /usr/sbin/aide --check

If the output is "Couldn't open file /var/lib/aide/aide.db.gz for reading", this is a finding.

Check Content Reference

M

Target Key

5664