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 force a frequent session key renegotiation for SSH connections to the server.

DISA Rule

SV-269120r1050610_rule

Vulnerability Number

V-269120

Group Title

SRG-OS-000033-GPOS-00014

Rule Version

ALMA-09-003650

Severity

CAT II

CCI(s)

• CCI-000068 - Implement cryptographic mechanisms to protect the confidentiality of remote access sessions.

Weight

10

Fix Recommendation

Configure AlmaLinux OS 9 to force a frequent session key renegotiation for SSH connections to the server by running the following command:

$ echo "RekeyLimit 1G 1h" > /etc/ssh/sshd_config.d/40-rekeylimit.conf

Check Contents

Verify the SSH server is configured to force frequent session key renegotiation with the following command:

$ sshd -T | grep rekeylimit

rekeylimit 1073741824 3600

If "RekeyLimit" does not have a maximum data amount and maximum time defined, this is a finding.

Vulnerability Number

V-269120

Documentable

False

Rule Version

ALMA-09-003650

Severity Override Guidance

Verify the SSH server is configured to force frequent session key renegotiation with the following command:

$ sshd -T | grep rekeylimit

rekeylimit 1073741824 3600

If "RekeyLimit" does not have a maximum data amount and maximum time defined, this is a finding.

Check Content Reference

M

Target Key

5664