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 disable the Stream Control Transmission Protocol (SCTP) kernel module.

DISA Rule

SV-269345r1050227_rule

Vulnerability Number

V-269345

Group Title

SRG-OS-000095-GPOS-00049

Rule Version

ALMA-09-030050

Severity

CAT II

CCI(s)

• CCI-000381 - Configure the system to provide only organization-defined mission essential capabilities.

Weight

10

Fix Recommendation

To configure the system to prevent the SCTP kernel module from being loaded, run the following command:

$ cat << EOF | tee /etc/modprobe.d/sctp.conf
install sctp /bin/false
blacklist sctp
EOF

Check Contents

Verify that AlmaLinux OS 9 disables the ability to load the SCTP kernel module with the following command:

$ grep -r sctp /etc/modprobe.conf /etc/modprobe.d/*

/etc/modprobe.d/sctp.conf:install sctp /bin/false
/etc/modprobe.d/sctp.conf:blacklist sctp

If the command does not return any output, or the line is commented out, and use of SCTP is not documented with the information system security officer (ISSO) as an operational requirement, this is a finding.

Vulnerability Number

V-269345

Documentable

False

Rule Version

ALMA-09-030050

Severity Override Guidance

Verify that AlmaLinux OS 9 disables the ability to load the SCTP kernel module with the following command:

$ grep -r sctp /etc/modprobe.conf /etc/modprobe.d/*

/etc/modprobe.d/sctp.conf:install sctp /bin/false
/etc/modprobe.d/sctp.conf:blacklist sctp

If the command does not return any output, or the line is commented out, and use of SCTP is not documented with the information system security officer (ISSO) as an operational requirement, this is a finding.

Check Content Reference

M

Target Key

5664