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From f0998f93828e756111294eb4c733fad77febd493 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jan=20=C4=8Cern=C3=BD?= <jcerny@redhat.com>
Date: Wed, 6 Dec 2023 10:31:53 +0100
Subject: [PATCH 15/15] Update ssh stig HMACS and Ciphers allowed in OL8 STIG
Patch-name: scap-security-guide-0.1.70-update_ssh_stig_algos-PR_10920.patch
Patch-status: Update ssh stig HMACS and Ciphers allowed in OL8 STIG
---
linux_os/guide/services/ssh/sshd_approved_ciphers.var | 1 +
.../tests/rhel8_stig_correct.pass.sh | 5 +++--
.../tests/rhel8_stig_empty_policy.fail.sh | 2 +-
.../tests/rhel8_stig_incorrect_policy.fail.sh | 2 +-
.../tests/rhel8_stig_missing_file.fail.sh | 2 +-
.../harden_sshd_macs_openssh_conf_crypto_policy/rule.yml | 4 ++--
.../tests/stig_correct.pass.sh | 5 +++--
.../tests/stig_correct_commented.fail.sh | 5 +++--
.../stig_correct_followed_by_incorrect_commented.pass.sh | 5 +++--
.../stig_incorrect_followed_by_correct_commented.fail.sh | 5 +++--
.../rule.yml | 4 ++--
products/ol8/profiles/stig.profile | 4 ++--
12 files changed, 25 insertions(+), 19 deletions(-)
diff --git a/linux_os/guide/services/ssh/sshd_approved_ciphers.var b/linux_os/guide/services/ssh/sshd_approved_ciphers.var
index 65c3fde987..4ab4d36cef 100644
--- a/linux_os/guide/services/ssh/sshd_approved_ciphers.var
+++ b/linux_os/guide/services/ssh/sshd_approved_ciphers.var
@@ -12,6 +12,7 @@ interactive: false
options:
stig: aes256-ctr,aes192-ctr,aes128-ctr
+ stig_extended: aes256-ctr,aes192-ctr,aes128-ctr,aes256-gcm@openssh.com,aes128-gcm@openssh.com
default: aes128-ctr,aes192-ctr,aes256-ctr,aes128-cbc,3des-cbc,aes192-cbc,aes256-cbc,rijndael-cbc@lysator.liu.se
cis_rhel7: chacha20-poly1305@openssh.com,aes128-ctr,aes192-ctr,aes256-ctr,aes128-gcm@openssh.com,aes256-gcm@openssh.com,aes128-cbc,aes192-cbc,aes256-cbc,blowfish-cbc,cast128-cbc,3des-cbc
cis_sle12: chacha20-poly1305@openssh.com,aes256-gcm@openssh.com,aes128-gcm@openssh.com,aes256-ctr,aes192-ctr,aes128-ctr
diff --git a/linux_os/guide/system/software/integrity/crypto/harden_sshd_ciphers_opensshserver_conf_crypto_policy/tests/rhel8_stig_correct.pass.sh b/linux_os/guide/system/software/integrity/crypto/harden_sshd_ciphers_opensshserver_conf_crypto_policy/tests/rhel8_stig_correct.pass.sh
index c84e0c1576..34b69406a3 100644
--- a/linux_os/guide/system/software/integrity/crypto/harden_sshd_ciphers_opensshserver_conf_crypto_policy/tests/rhel8_stig_correct.pass.sh
+++ b/linux_os/guide/system/software/integrity/crypto/harden_sshd_ciphers_opensshserver_conf_crypto_policy/tests/rhel8_stig_correct.pass.sh
@@ -1,8 +1,9 @@
#!/bin/bash
# platform = Oracle Linux 8,Red Hat Enterprise Linux 8
-# profiles = xccdf_org.ssgproject.content_profile_stig
+# variables = sshd_approved_ciphers=aes256-ctr,aes192-ctr,aes128-ctr,aes256-gcm@openssh.com,aes128-gcm@openssh.com
+
+sshd_approved_ciphers=aes256-ctr,aes192-ctr,aes128-ctr,aes256-gcm@openssh.com,aes128-gcm@openssh.com
-sshd_approved_ciphers=aes256-ctr,aes192-ctr,aes128-ctr
configfile=/etc/crypto-policies/back-ends/opensshserver.config
correct_value="-oCiphers=${sshd_approved_ciphers}"
diff --git a/linux_os/guide/system/software/integrity/crypto/harden_sshd_ciphers_opensshserver_conf_crypto_policy/tests/rhel8_stig_empty_policy.fail.sh b/linux_os/guide/system/software/integrity/crypto/harden_sshd_ciphers_opensshserver_conf_crypto_policy/tests/rhel8_stig_empty_policy.fail.sh
index 66483e898a..60b4616ce5 100644
--- a/linux_os/guide/system/software/integrity/crypto/harden_sshd_ciphers_opensshserver_conf_crypto_policy/tests/rhel8_stig_empty_policy.fail.sh
+++ b/linux_os/guide/system/software/integrity/crypto/harden_sshd_ciphers_opensshserver_conf_crypto_policy/tests/rhel8_stig_empty_policy.fail.sh
@@ -1,6 +1,6 @@
#!/bin/bash
# platform = Oracle Linux 8,Red Hat Enterprise Linux 8
-# profiles = xccdf_org.ssgproject.content_profile_stig
+# variables = sshd_approved_ciphers=aes256-ctr,aes192-ctr,aes128-ctr,aes256-gcm@openssh.com,aes128-gcm@openssh.com
configfile=/etc/crypto-policies/back-ends/opensshserver.config
diff --git a/linux_os/guide/system/software/integrity/crypto/harden_sshd_ciphers_opensshserver_conf_crypto_policy/tests/rhel8_stig_incorrect_policy.fail.sh b/linux_os/guide/system/software/integrity/crypto/harden_sshd_ciphers_opensshserver_conf_crypto_policy/tests/rhel8_stig_incorrect_policy.fail.sh
index e350ce5f0a..3eca150b3f 100644
--- a/linux_os/guide/system/software/integrity/crypto/harden_sshd_ciphers_opensshserver_conf_crypto_policy/tests/rhel8_stig_incorrect_policy.fail.sh
+++ b/linux_os/guide/system/software/integrity/crypto/harden_sshd_ciphers_opensshserver_conf_crypto_policy/tests/rhel8_stig_incorrect_policy.fail.sh
@@ -1,6 +1,6 @@
#!/bin/bash
# platform = Oracle Linux 8,Red Hat Enterprise Linux 8
-# profiles = xccdf_org.ssgproject.content_profile_stig
+# variables = sshd_approved_ciphers=aes256-ctr,aes192-ctr,aes128-ctr,aes256-gcm@openssh.com,aes128-gcm@openssh.com
configfile=/etc/crypto-policies/back-ends/opensshserver.config
diff --git a/linux_os/guide/system/software/integrity/crypto/harden_sshd_ciphers_opensshserver_conf_crypto_policy/tests/rhel8_stig_missing_file.fail.sh b/linux_os/guide/system/software/integrity/crypto/harden_sshd_ciphers_opensshserver_conf_crypto_policy/tests/rhel8_stig_missing_file.fail.sh
index 11b194db03..f8659efcf0 100644
--- a/linux_os/guide/system/software/integrity/crypto/harden_sshd_ciphers_opensshserver_conf_crypto_policy/tests/rhel8_stig_missing_file.fail.sh
+++ b/linux_os/guide/system/software/integrity/crypto/harden_sshd_ciphers_opensshserver_conf_crypto_policy/tests/rhel8_stig_missing_file.fail.sh
@@ -1,6 +1,6 @@
#!/bin/bash
# platform = Oracle Linux 8,Red Hat Enterprise Linux 8
-# profiles = xccdf_org.ssgproject.content_profile_stig
+# variables = sshd_approved_ciphers=aes256-ctr,aes192-ctr,aes128-ctr,aes256-gcm@openssh.com,aes128-gcm@openssh.com
configfile=/etc/crypto-policies/back-ends/opensshserver.config
diff --git a/linux_os/guide/system/software/integrity/crypto/harden_sshd_macs_openssh_conf_crypto_policy/rule.yml b/linux_os/guide/system/software/integrity/crypto/harden_sshd_macs_openssh_conf_crypto_policy/rule.yml
index 8736e39afc..547c31545e 100644
--- a/linux_os/guide/system/software/integrity/crypto/harden_sshd_macs_openssh_conf_crypto_policy/rule.yml
+++ b/linux_os/guide/system/software/integrity/crypto/harden_sshd_macs_openssh_conf_crypto_policy/rule.yml
@@ -12,7 +12,7 @@ description: |-
To check that Crypto Policies settings are configured correctly, ensure that
<tt>/etc/crypto-policies/back-ends/openssh.config</tt> contains the following
line and is not commented out:
- <tt>MACs hmac-sha2-512,hmac-sha2-256</tt>
+ <tt>MACs {{{ xccdf_value("sshd_approved_macs") }}}</tt>
rationale: |-
Overriding the system crypto policy makes the behavior of the OpenSSH
@@ -38,7 +38,7 @@ ocil: |-
To verify if the OpenSSH client uses defined MACs in the Crypto Policy, run:
<pre>$ grep -i macs /etc/crypto-policies/back-ends/openssh.config</pre>
and verify that the line matches:
- <pre>MACs hmac-sha2-512,hmac-sha2-256</pre>
+ <pre>MACs {{{ xccdf_value("sshd_approved_macs") }}}</pre>
warnings:
- general: |-
diff --git a/linux_os/guide/system/software/integrity/crypto/harden_sshd_macs_openssh_conf_crypto_policy/tests/stig_correct.pass.sh b/linux_os/guide/system/software/integrity/crypto/harden_sshd_macs_openssh_conf_crypto_policy/tests/stig_correct.pass.sh
index 6edae50924..49d18486f3 100644
--- a/linux_os/guide/system/software/integrity/crypto/harden_sshd_macs_openssh_conf_crypto_policy/tests/stig_correct.pass.sh
+++ b/linux_os/guide/system/software/integrity/crypto/harden_sshd_macs_openssh_conf_crypto_policy/tests/stig_correct.pass.sh
@@ -1,8 +1,9 @@
#!/bin/bash
# platform = Oracle Linux 8,Red Hat Enterprise Linux 8,multi_platform_fedora
-# profiles = xccdf_org.ssgproject.content_profile_stig
+# variables = sshd_approved_macs=hmac-sha2-512,hmac-sha2-256,hmac-sha2-512-etm@openssh.com,hmac-sha2-256-etm@openssh.com
+
+sshd_approved_macs=hmac-sha2-512,hmac-sha2-256,hmac-sha2-512-etm@openssh.com,hmac-sha2-256-etm@openssh.com
-sshd_approved_macs=hmac-sha2-512,hmac-sha2-256
configfile=/etc/crypto-policies/back-ends/openssh.config
# Ensure directory + file is there
diff --git a/linux_os/guide/system/software/integrity/crypto/harden_sshd_macs_openssh_conf_crypto_policy/tests/stig_correct_commented.fail.sh b/linux_os/guide/system/software/integrity/crypto/harden_sshd_macs_openssh_conf_crypto_policy/tests/stig_correct_commented.fail.sh
index 0fec46a5c3..b068e2ea4d 100644
--- a/linux_os/guide/system/software/integrity/crypto/harden_sshd_macs_openssh_conf_crypto_policy/tests/stig_correct_commented.fail.sh
+++ b/linux_os/guide/system/software/integrity/crypto/harden_sshd_macs_openssh_conf_crypto_policy/tests/stig_correct_commented.fail.sh
@@ -1,8 +1,9 @@
#!/bin/bash
# platform = Oracle Linux 8,Red Hat Enterprise Linux 8,multi_platform_fedora
-# profiles = xccdf_org.ssgproject.content_profile_stig
+# variables = sshd_approved_macs=hmac-sha2-512,hmac-sha2-256,hmac-sha2-512-etm@openssh.com,hmac-sha2-256-etm@openssh.com
+
+sshd_approved_macs=hmac-sha2-512,hmac-sha2-256,hmac-sha2-512-etm@openssh.com,hmac-sha2-256-etm@openssh.com
-sshd_approved_macs=hmac-sha2-512,hmac-sha2-256
configfile=/etc/crypto-policies/back-ends/openssh.config
# Ensure directory + file is there
diff --git a/linux_os/guide/system/software/integrity/crypto/harden_sshd_macs_openssh_conf_crypto_policy/tests/stig_correct_followed_by_incorrect_commented.pass.sh b/linux_os/guide/system/software/integrity/crypto/harden_sshd_macs_openssh_conf_crypto_policy/tests/stig_correct_followed_by_incorrect_commented.pass.sh
index 95bf94331c..f57f422701 100644
--- a/linux_os/guide/system/software/integrity/crypto/harden_sshd_macs_openssh_conf_crypto_policy/tests/stig_correct_followed_by_incorrect_commented.pass.sh
+++ b/linux_os/guide/system/software/integrity/crypto/harden_sshd_macs_openssh_conf_crypto_policy/tests/stig_correct_followed_by_incorrect_commented.pass.sh
@@ -1,8 +1,9 @@
#!/bin/bash
# platform = Oracle Linux 8,Red Hat Enterprise Linux 8,multi_platform_fedora
-# profiles = xccdf_org.ssgproject.content_profile_stig
+# variables = sshd_approved_macs=hmac-sha2-512,hmac-sha2-256,hmac-sha2-512-etm@openssh.com,hmac-sha2-256-etm@openssh.com
+
+sshd_approved_macs=hmac-sha2-512,hmac-sha2-256,hmac-sha2-512-etm@openssh.com,hmac-sha2-256-etm@openssh.com
-sshd_approved_macs=hmac-sha2-512,hmac-sha2-256
configfile=/etc/crypto-policies/back-ends/openssh.config
# Ensure directory + file is there
diff --git a/linux_os/guide/system/software/integrity/crypto/harden_sshd_macs_openssh_conf_crypto_policy/tests/stig_incorrect_followed_by_correct_commented.fail.sh b/linux_os/guide/system/software/integrity/crypto/harden_sshd_macs_openssh_conf_crypto_policy/tests/stig_incorrect_followed_by_correct_commented.fail.sh
index 4af43d60e7..999463e1c2 100644
--- a/linux_os/guide/system/software/integrity/crypto/harden_sshd_macs_openssh_conf_crypto_policy/tests/stig_incorrect_followed_by_correct_commented.fail.sh
+++ b/linux_os/guide/system/software/integrity/crypto/harden_sshd_macs_openssh_conf_crypto_policy/tests/stig_incorrect_followed_by_correct_commented.fail.sh
@@ -1,8 +1,9 @@
#!/bin/bash
# platform = Oracle Linux 8,Red Hat Enterprise Linux 8,multi_platform_fedora
-# profiles = xccdf_org.ssgproject.content_profile_stig
+# variables = sshd_approved_macs=hmac-sha2-512,hmac-sha2-256,hmac-sha2-512-etm@openssh.com,hmac-sha2-256-etm@openssh.com
+
+sshd_approved_macs=hmac-sha2-512,hmac-sha2-256,hmac-sha2-512-etm@openssh.com,hmac-sha2-256-etm@openssh.com
-sshd_approved_macs=hmac-sha2-512,hmac-sha2-256
incorrect_sshd_approved_macs=hmac-sha2-256-etm@openssh.com,hmac-sha1-etm@openssh.com,umac-128-etm@openssh.com,hmac-sha2-512-etm@openssh.com,hmac-sha2-256,hmac-sha1,umac-128@openssh.com,hmac-sha2-512
configfile=/etc/crypto-policies/back-ends/openssh.config
diff --git a/linux_os/guide/system/software/integrity/crypto/harden_sshd_macs_opensshserver_conf_crypto_policy/rule.yml b/linux_os/guide/system/software/integrity/crypto/harden_sshd_macs_opensshserver_conf_crypto_policy/rule.yml
index f08f120f9a..a76cee71d8 100644
--- a/linux_os/guide/system/software/integrity/crypto/harden_sshd_macs_opensshserver_conf_crypto_policy/rule.yml
+++ b/linux_os/guide/system/software/integrity/crypto/harden_sshd_macs_opensshserver_conf_crypto_policy/rule.yml
@@ -12,7 +12,7 @@ description: |-
To check that Crypto Policies settings are configured correctly, ensure that
<tt>/etc/crypto-policies/back-ends/opensshserver.config</tt> contains the following
text and is not commented out:
- <tt>-oMACS=hmac-sha2-512,hmac-sha2-256,hmac-sha2-512-etm@openssh.com,hmac-sha2-256-etm@openssh.com</tt>
+ <tt>-oMACS={{{ xccdf_value("sshd_approved_macs") }}}</tt>
rationale: |-
Overriding the system crypto policy makes the behavior of the OpenSSH
@@ -38,7 +38,7 @@ ocil: |-
To verify if the OpenSSH server uses defined MACs in the Crypto Policy, run:
<pre>$ grep -Po '(-oMACs=\S+)' /etc/crypto-policies/back-ends/opensshserver.config</pre>
and verify that the line matches:
- <pre>-oMACS=hmac-sha2-512,hmac-sha2-256,hmac-sha2-512-etm@openssh.com,hmac-sha2-256-etm@openssh.com</pre>
+ <pre>-oMACS={{{ xccdf_value("sshd_approved_macs") }}}</pre>
warnings:
- general: |-
diff --git a/products/ol8/profiles/stig.profile b/products/ol8/profiles/stig.profile
index ae2795c4fb..2be62c59ca 100644
--- a/products/ol8/profiles/stig.profile
+++ b/products/ol8/profiles/stig.profile
@@ -38,8 +38,8 @@ selections:
- var_password_pam_retry=3
- var_password_pam_minlen=15
- var_sshd_set_keepalive=0
- - sshd_approved_macs=stig
- - sshd_approved_ciphers=stig
+ - sshd_approved_macs=stig_extended
+ - sshd_approved_ciphers=stig_extended
- sshd_idle_timeout_value=10_minutes
- var_accounts_authorized_local_users_regex=ol8
- var_accounts_passwords_pam_faillock_deny=3
--
2.43.0
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