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grsec.rules
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grsec.rules
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# Sagan grsec.rules
# Copyright (c) 2009-2020. Quadrant Information Security <www.quadrantsec.com>
# All rights reserved.
#
# Please submit any custom rules or ideas to [email protected] or the sagan-sigs mailing list
#
#*************************************************************
# Redistribution and use in source and binary forms, with or without modification, are permitted provided that the
# following conditions are met:
#
# * Redistributions of source code must retain the above copyright notice, this list of conditions and the following
# disclaimer.
# * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the
# following disclaimer in the documentation and/or other materials provided with the distribution.
# * Neither the name of the nor the names of its contributors may be used to endorse or promote products derived
# from this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY EXPRESS OR IMPLIED WARRANTIES,
# INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
# DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
# SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
# USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#
#*************************************************************
#
# These rule sets are for systems with hardened kernels (PaX/GRSec). If you don't run a hardened kernel, you won't
# see these alerts. For more information, see: http://www.grsecurity.net/
alert any $EXTERNAL_NET any -> $HOME_NET any (msg:"[GRSEC] Time set"; content:"time set by";classtype: not-suspicious; program: grsec; parse_src_ip: 1; reference: url,wiki.quadrantsec.com/bin/view/Main/5000029; sid: 5000029; rev:6;)
#alert any $EXTERNAL_NET any -> $HOME_NET any (msg:"[GRSEC] Signal 11 sent"; content:"signal 11 sent";classtype: program-error; parse_src_ip: 1; program: grsec; reference: url,wiki.quadrantsec.com/bin/view/Main/5000030; sid: 5000030; rev:6;)
alert any $EXTERNAL_NET any -> $HOME_NET any (msg:"[GRSEC] Denied resource overstep"; content:"denied resource overstep"; xbits: set,brute_force, track ip_src, expire 21600; classtype: exploit-attempt; program: grsec; parse_src_ip: 1; reference: url,wiki.quadrantsec.com/bin/view/Main/5000042; sid: 5000042; rev:7;)