Initial Commit

4 files changed, 157 insertions, 0 deletions

diff --git a/05-grsecurity.conf b/05-grsecurity.conf
new file mode 100644
index 0000000..4beddce
--- /dev/null
+++ b/05-grsecurity.conf
@@ -0,0 +1,131 @@
+# All features in the kernel.grsecurity namespace are disabled by default.
+
+#
+# Disable PaX enforcement by default.
+#
+# The `paxd` package sets softmode back to 0 in a configuration file loaded
+# after this one. It automatically handles setting exceptions from the PaX
+# exploit mitigations after Pacman operations. Altering the setting manually
+# rather than using `paxd` is not recommended.
+#
+
+kernel.pax.softmode = 1
+
+#
+# Memory protections
+#
+
+#kernel.grsecurity.disable_priv_io = 1
+kernel.grsecurity.deter_bruteforce = 1
+
+#
+# Race free SymLinksIfOwnerMatch for web servers
+#
+# symlinkown_gid: http group
+#
+
+kernel.grsecurity.enforce_symlinksifowner = 1
+kernel.grsecurity.symlinkown_gid = 33
+
+#
+# FIFO restrictions
+#
+# Prevent writing to a FIFO in a world-writable sticky directory (e.g. /tmp),
+# unless the owner of the FIFO is the same owner of the directory it's held in.
+#
+
+kernel.grsecurity.fifo_restrictions = 1
+
+#
+# Deny any further rw mounts
+#
+
+#kernel.grsecurity.romount_protect = 1
+
+#
+# chroot restrictions (the commented options will break containers)
+#
+
+#kernel.grsecurity.chroot_caps = 1
+kernel.grsecurity.chroot_deny_bad_rename = 1
+#kernel.grsecurity.chroot_deny_chmod = 1
+#kernel.grsecurity.chroot_deny_chroot = 1
+kernel.grsecurity.chroot_deny_fchdir = 1
+#kernel.grsecurity.chroot_deny_mknod = 1
+#kernel.grsecurity.chroot_deny_mount = 1
+#kernel.grsecurity.chroot_deny_pivot = 1
+kernel.grsecurity.chroot_deny_shmat = 1
+kernel.grsecurity.chroot_deny_sysctl = 1
+kernel.grsecurity.chroot_deny_unix = 1
+kernel.grsecurity.chroot_enforce_chdir = 1
+kernel.grsecurity.chroot_findtask = 1
+#kernel.grsecurity.chroot_restrict_nice = 1
+
+#
+# Kernel auditing
+#
+# audit_group: Restrict exec/chdir logging to a group.
+# audit_gid: audit group
+#
+
+#kernel.grsecurity.audit_group = 1
+kernel.grsecurity.audit_gid = 201
+#kernel.grsecurity.exec_logging = 1
+#kernel.grsecurity.resource_logging = 1
+#kernel.grsecurity.chroot_execlog = 1
+#kernel.grsecurity.audit_ptrace = 1
+#kernel.grsecurity.audit_chdir = 1
+#kernel.grsecurity.audit_mount = 1
+#kernel.grsecurity.signal_logging = 1
+#kernel.grsecurity.forkfail_logging = 1
+#kernel.grsecurity.timechange_logging = 1
+kernel.grsecurity.rwxmap_logging = 1
+
+#
+# Executable protections
+#
+
+kernel.grsecurity.harden_ptrace = 1
+kernel.grsecurity.ptrace_readexec = 1
+kernel.grsecurity.consistent_setxid = 1
+kernel.grsecurity.harden_ipc = 1
+
+#
+# Trusted Path Execution
+#
+# tpe_gid: tpe group
+#
+
+#kernel.grsecurity.tpe = 1
+kernel.grsecurity.tpe_gid = 200
+#kernel.grsecurity.tpe_invert = 1
+kernel.grsecurity.tpe_restrict_all = 1
+
+#
+# Network protections
+#
+# socket_all_gid:    socket-deny-all group
+# socket_client_gid: socket-deny-client group
+# socket_server_gid: socket-deny-server group
+#
+
+#kernel.grsecurity.ip_blackhole = 1
+kernel.grsecurity.lastack_retries = 4
+kernel.grsecurity.socket_all = 1
+kernel.grsecurity.socket_all_gid = 202
+kernel.grsecurity.socket_client = 1
+kernel.grsecurity.socket_client_gid = 203
+kernel.grsecurity.socket_server = 1
+kernel.grsecurity.socket_server_gid = 204
+
+#
+# Prevent any new USB devices from being recognized by the OS.
+#
+
+#kernel.grsecurity.deny_new_usb = 1
+
+#
+# Restrict grsec sysctl changes after this was set
+#
+
+#kernel.grsecurity.grsec_lock = 1 
diff --git a/05-grsecurity.conf.sig b/05-grsecurity.conf.sig
new file mode 100644
index 0000000..d8b8823
--- /dev/null
+++ b/05-grsecurity.conf.sig
diff --git a/PKGBUILD b/PKGBUILD
new file mode 100644
index 0000000..ded68af
--- /dev/null
+++ b/PKGBUILD
@@ -0,0 +1,19 @@
+# $Id$
+# Maintainer: Daniel Micay <danielmicay@gmail.com>
+pkgname=grsec-common
+pkgver=4
+pkgrel=1
+pkgdesc='Base package for grsecurity kernels'
+arch=(any)
+url='https://archlinux.org/'
+license=('GPL2')
+install=$pkgname.install
+source=(05-grsecurity.conf
+        05-grsecurity.conf.sig)
+sha512sums=('5c69955645eba5e07d6523281310ff0935c58ee90f99af33ea427ec4029524bbdfa5928dbf8c24beed4ec3e671cfccde690228898fc7fa0b76445276b2ace391'
+            'SKIP')
+backup=(etc/sysctl.d/05-grsecurity.conf)
+
+package() {
+  install -Dm600 05-grsecurity.conf "$pkgdir/etc/sysctl.d/05-grsecurity.conf"
+} 
diff --git a/grsec-common.install b/grsec-common.install
new file mode 100644
index 0000000..0244dc8
--- /dev/null
+++ b/grsec-common.install
@@ -0,0 +1,7 @@
+post_install() {
+  getent group tpe >/dev/null || groupadd -g 200 tpe
+  getent group audit >/dev/null || groupadd -g 201 audit
+  getent group socket-deny-all >/dev/null || groupadd -g 202 socket-deny-all
+  getent group socket-deny-client >/dev/null || groupadd -g 203 socket-deny-client
+  getent group socket-deny-server >/dev/null || groupadd -g 204 socket-deny-server
+}