remove network-related sysctl rules from rhel9 ospp
Resolves:rhbz#2081708
This commit is contained in:
Vojtech Polasek
parent
3c0a847089
commit
71a4d79910
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From 2940804e45b98060428593218d352b0ff2d1e2bc Mon Sep 17 00:00:00 2001
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From: Watson Sato <wsato@redhat.com>
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Date: Mon, 4 Jul 2022 13:52:01 +0200
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Subject: [PATCH 1/7] RHEL9 OSPP: Drop rules w/o specific need aligned with
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default value
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Remove rules that just reenforce RHEL9 default without specific
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OSPP requirement.
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---
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products/rhel9/profiles/ospp.profile | 8 --------
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1 file changed, 8 deletions(-)
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diff --git a/products/rhel9/profiles/ospp.profile b/products/rhel9/profiles/ospp.profile
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index 534b3312575..6b57dcdeeb7 100644
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--- a/products/rhel9/profiles/ospp.profile
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+++ b/products/rhel9/profiles/ospp.profile
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@@ -78,20 +78,12 @@ selections:
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- sysctl_net_ipv4_conf_default_accept_redirects
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- sysctl_net_ipv6_conf_all_accept_redirects
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- sysctl_net_ipv6_conf_default_accept_redirects
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- - sysctl_net_ipv4_conf_all_accept_source_route
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- - sysctl_net_ipv4_conf_default_accept_source_route
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- - sysctl_net_ipv6_conf_all_accept_source_route
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- - sysctl_net_ipv6_conf_default_accept_source_route
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- sysctl_net_ipv4_conf_all_secure_redirects
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- sysctl_net_ipv4_conf_default_secure_redirects
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- sysctl_net_ipv4_conf_all_send_redirects
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- sysctl_net_ipv4_conf_default_send_redirects
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- sysctl_net_ipv4_conf_all_log_martians
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- sysctl_net_ipv4_conf_default_log_martians
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- - sysctl_net_ipv4_conf_all_rp_filter
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- - sysctl_net_ipv4_conf_default_rp_filter
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- - sysctl_net_ipv4_icmp_ignore_bogus_error_responses
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- - sysctl_net_ipv4_icmp_echo_ignore_broadcasts
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- sysctl_net_ipv4_ip_forward
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- sysctl_net_ipv4_tcp_syncookies
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From 4215e69c3264404b4f8597bb12536ddf9f95fe59 Mon Sep 17 00:00:00 2001
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From: Watson Sato <wsato@redhat.com>
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Date: Mon, 4 Jul 2022 13:58:24 +0200
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Subject: [PATCH 2/7] RHEL9 OSPP: Drop rules affecting important funcionality
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The TCP SYN cookikes rules may prevent some TCP options from working;
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and without accepting Router Advertisements, ability of hosts to use
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IPv6 becomes severely limited.
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---
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products/rhel9/profiles/ospp.profile | 3 ---
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1 file changed, 3 deletions(-)
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diff --git a/products/rhel9/profiles/ospp.profile b/products/rhel9/profiles/ospp.profile
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index 6b57dcdeeb7..d0000be5041 100644
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--- a/products/rhel9/profiles/ospp.profile
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+++ b/products/rhel9/profiles/ospp.profile
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@@ -72,8 +72,6 @@ selections:
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- chronyd_client_only
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### Network Settings
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- - sysctl_net_ipv6_conf_all_accept_ra
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- - sysctl_net_ipv6_conf_default_accept_ra
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- sysctl_net_ipv4_conf_all_accept_redirects
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- sysctl_net_ipv4_conf_default_accept_redirects
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- sysctl_net_ipv6_conf_all_accept_redirects
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@@ -85,7 +83,6 @@ selections:
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- sysctl_net_ipv4_conf_all_log_martians
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- sysctl_net_ipv4_conf_default_log_martians
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- sysctl_net_ipv4_ip_forward
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- - sysctl_net_ipv4_tcp_syncookies
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### systemd
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- disable_ctrlaltdel_reboot
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From 10a621b7fc934a81080632159b61328e303f39cf Mon Sep 17 00:00:00 2001
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From: Watson Sato <wsato@redhat.com>
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Date: Mon, 4 Jul 2022 14:01:41 +0200
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Subject: [PATCH 3/7] RHEL9 OSPP: Drop rules changing default values not
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related to OSPP
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Removes rules that change RHEL9 default values but are not related to
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any specific OSPP requirement
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---
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products/rhel9/profiles/ospp.profile | 4 ----
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1 file changed, 4 deletions(-)
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diff --git a/products/rhel9/profiles/ospp.profile b/products/rhel9/profiles/ospp.profile
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index d0000be5041..e9dbb8bc7bd 100644
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--- a/products/rhel9/profiles/ospp.profile
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+++ b/products/rhel9/profiles/ospp.profile
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@@ -72,10 +72,6 @@ selections:
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- chronyd_client_only
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### Network Settings
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- - sysctl_net_ipv4_conf_all_accept_redirects
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- - sysctl_net_ipv4_conf_default_accept_redirects
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- - sysctl_net_ipv6_conf_all_accept_redirects
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- - sysctl_net_ipv6_conf_default_accept_redirects
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- sysctl_net_ipv4_conf_all_secure_redirects
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- sysctl_net_ipv4_conf_default_secure_redirects
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- sysctl_net_ipv4_conf_all_send_redirects
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From 1710015450a9b6780be2f5ed363c893d437f923d Mon Sep 17 00:00:00 2001
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From: Watson Sato <wsato@redhat.com>
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Date: Mon, 4 Jul 2022 14:03:53 +0200
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Subject: [PATCH 4/7] RHEL9 OSPP: Drop send redirect rules that don't affect
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the TOE
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Remove rules that changes the default value but don't impact the
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security of the TOE in any way.
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---
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products/rhel9/profiles/ospp.profile | 2 --
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1 file changed, 2 deletions(-)
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diff --git a/products/rhel9/profiles/ospp.profile b/products/rhel9/profiles/ospp.profile
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index e9dbb8bc7bd..159170d5ff9 100644
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--- a/products/rhel9/profiles/ospp.profile
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+++ b/products/rhel9/profiles/ospp.profile
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@@ -74,8 +74,6 @@ selections:
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### Network Settings
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- sysctl_net_ipv4_conf_all_secure_redirects
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- sysctl_net_ipv4_conf_default_secure_redirects
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- - sysctl_net_ipv4_conf_all_send_redirects
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- - sysctl_net_ipv4_conf_default_send_redirects
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- sysctl_net_ipv4_conf_all_log_martians
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- sysctl_net_ipv4_conf_default_log_martians
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- sysctl_net_ipv4_ip_forward
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From 6d4bc8ef333a361a9c1149be44fa0796f81fa7dc Mon Sep 17 00:00:00 2001
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From: Watson Sato <wsato@redhat.com>
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Date: Mon, 4 Jul 2022 14:05:22 +0200
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Subject: [PATCH 5/7] RHEL9 OSPP: Remove rules that affect secuity of TOE
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Sysctl allows redirects only when they are considered secure.
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---
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products/rhel9/profiles/ospp.profile | 2 --
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1 file changed, 2 deletions(-)
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diff --git a/products/rhel9/profiles/ospp.profile b/products/rhel9/profiles/ospp.profile
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index 159170d5ff9..771daed43e2 100644
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--- a/products/rhel9/profiles/ospp.profile
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+++ b/products/rhel9/profiles/ospp.profile
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@@ -72,8 +72,6 @@ selections:
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- chronyd_client_only
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### Network Settings
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- - sysctl_net_ipv4_conf_all_secure_redirects
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- - sysctl_net_ipv4_conf_default_secure_redirects
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- sysctl_net_ipv4_conf_all_log_martians
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- sysctl_net_ipv4_conf_default_log_martians
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- sysctl_net_ipv4_ip_forward
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From 8e1bedea2fd0740ee7d25cb028af1d8031fc6710 Mon Sep 17 00:00:00 2001
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From: Watson Sato <wsato@redhat.com>
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Date: Mon, 4 Jul 2022 14:08:47 +0200
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Subject: [PATCH 6/7] RHEL9 OSPP: Drop log martians rules
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Remove rules that might help with detecting network issues but not
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related to TOE security.
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---
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products/rhel9/profiles/ospp.profile | 2 --
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1 file changed, 2 deletions(-)
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diff --git a/products/rhel9/profiles/ospp.profile b/products/rhel9/profiles/ospp.profile
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index 771daed43e2..58702502bf4 100644
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--- a/products/rhel9/profiles/ospp.profile
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+++ b/products/rhel9/profiles/ospp.profile
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@@ -72,8 +72,6 @@ selections:
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- chronyd_client_only
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### Network Settings
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- - sysctl_net_ipv4_conf_all_log_martians
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- - sysctl_net_ipv4_conf_default_log_martians
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- sysctl_net_ipv4_ip_forward
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### systemd
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From 7ffc1fb101edc8f29ace5c9e84d3f39e2a3cbfae Mon Sep 17 00:00:00 2001
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From: Watson Sato <wsato@redhat.com>
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Date: Mon, 4 Jul 2022 14:09:57 +0200
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Subject: [PATCH 7/7] RHEL9 OSPP: Drop rule preventing forwarding
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Remove rule that prevents routing which is a valid use-case.
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This is also needed for containerized and VM-hosting setups.
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---
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products/rhel9/profiles/ospp.profile | 3 ---
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1 file changed, 3 deletions(-)
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diff --git a/products/rhel9/profiles/ospp.profile b/products/rhel9/profiles/ospp.profile
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index 58702502bf4..c9e944b32d2 100644
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--- a/products/rhel9/profiles/ospp.profile
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+++ b/products/rhel9/profiles/ospp.profile
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@@ -71,9 +71,6 @@ selections:
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# Time Server
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- chronyd_client_only
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- ### Network Settings
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- - sysctl_net_ipv4_ip_forward
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-
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### systemd
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- disable_ctrlaltdel_reboot
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- disable_ctrlaltdel_burstaction
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@ -28,6 +28,7 @@ Patch0: scap-security-guide-0.1.63-remove_sysctl_proteced_fs_rule
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Patch1: scap-security-guide-0.1.63-audit_access_success_unenforcing-PR_9082.patch
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Patch2: scap-security-guide-0.1.63-drop_zipl_vsyscall_argument-PR_9083.patch
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Patch3: scap-security-guide-0.1.63-sysctl_user_max_user_namespaces_enforce_in_ospp-PR_9084.patch
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Patch4: scap-security-guide-0.1.63-remove_network_sysctl_rules-PR_9092.patch
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%description
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The scap-security-guide project provides a guide for configuration of the
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@ -108,6 +109,7 @@ rm %{buildroot}/%{_docdir}/%{name}/Contributors.md
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- Make rule audit_access_success_ unenforcing in RHEL9 OSPP (RHBZ#2058154)
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- Drop zipl_vsyscall_argument rule from RHEL9 OSPP profile (RHBZ#2060049)
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- make sysctl_user_max_user_namespaces in RHEL9 OSPP (RHBZ#2083716)
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- Remove some sysctl rules related to network from RHEL9 OSPP (RHBZ#2081708)
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* Wed Jun 01 2022 Matej Tyc <matyc@redhat.com> - 0.1.62-1
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- Rebase to a new upstream release (RHBZ#2070563)
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