openssh CIS compliance
* CIS 5.2.1 Ensure permissions on /etc/ssh/sshd_config are configured (Scored)
* CIS 5.2.2 Ensure SSH Protocol is set to 2 (Scored)
* CIS 5.2.3 Ensure SSH LogLevel is set to INFO (Scored)
* CIS 5.2.4 Ensure SSH X11 forwarding is disabled (Scored)
* CIS 5.2.5 Ensure SSH MaxAuthTries is set to 4 or less (Scored)
* CIS 5.2.6 Ensure SSH IgnoreRhosts is enabled (Scored)
* CIS 5.2.7 Ensure SSH HostbasedAuthentication is disabled (Scored)
* CIS 5.2.8 Ensure SSH root login is disabled (Scored)
* CIS 5.2.9 Ensure SSH PermitEmptyPasswords is disabled (Scored)
* CIS 5.2.10 Ensure SSH PermitUserEnvironment is disabled (Scored)
* CIS 5.2.11 Ensure only approved MAC algorithms are used (Scored)
* CIS 5.2.12 Ensure SSH Idle Timeout Interval is configured (Scored)
* CIS 5.2.13 Ensure SSH LoginGraceTime is set to one minute or less (Scored)
* CIS 5.2.14 Ensure SSH access is limited (Scored)
* CIS 5.2.15 Ensure SSH warning banner is configured (Scored)
Change-Id: Ie53dbdfada27bdb08d3571be10e0de95117a1a17
diff --git a/metadata/service/server/cis/cis-5-2-13.yml b/metadata/service/server/cis/cis-5-2-13.yml
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+# 5.2.13 Ensure SSH LoginGraceTime is set to one minute or less (Scored)
+#
+# Profile Applicability
+# ---------------------
+# - Level 1 - Server
+# - Level 1 - Workstation
+#
+# Description
+# -----------
+# The LoginGraceTime parameter specifies the time allowed for successful authentication to
+# the SSH server. The longer the Grace period is the more open unauthenticated connections
+# can exist. Like other session controls in this session the Grace Period should be limited to
+# appropriate organizational limits to ensure the service is available for needed access.
+#
+# Rationale
+# ---------
+# Setting the LoginGraceTime parameter to a low number will minimize the risk of
+# successful brute force attacks to the SSH server. It will also limit the number of concurrent
+# unauthenticated connections While the recommended setting is 60 seconds (1 Minute), set
+# the number based on site policy.
+#
+# Audit
+# -----
+# Run the following command and verify that output LoginGraceTime is 60 or less:
+#
+# # grep "^LoginGraceTime" /etc/ssh/sshd_config
+# LoginGraceTime 60
+#
+# Remediation
+# -----------
+# Edit the /etc/ssh/sshd_config file to set the parameter as follows:
+#
+# LoginGraceTime 60
+
+parameters:
+ openssh:
+ server:
+ login_grace_time: 60
+