SV-258891r991589_rule
V-258891
SRG-OS-000480-GPOS-00227
PHTN-40-000228
CAT II
10
Navigate to and open:
/etc/sysctl.d/zz-stig-hardening.conf
Add or update the following lines:
net.ipv4.conf.all.log_martians = 1
net.ipv4.conf.default.log_martians = 1
At the command line, run the following command to load the new configuration:
# /sbin/sysctl --load /etc/sysctl.d/zz-stig-hardening.conf
Note: If the file zz-stig-hardening.conf does not exist, it must be created.
At the command line, run the following command to verify martian packets are logged:
# /sbin/sysctl -a --pattern "net.ipv4.conf.(all|default).log_martians"
Expected result:
net.ipv4.conf.all.log_martians = 1
net.ipv4.conf.default.log_martians = 1
If the "log_martians" kernel parameters are not set to "1", this is a finding.
V-258891
False
PHTN-40-000228
At the command line, run the following command to verify martian packets are logged:
# /sbin/sysctl -a --pattern "net.ipv4.conf.(all|default).log_martians"
Expected result:
net.ipv4.conf.all.log_martians = 1
net.ipv4.conf.default.log_martians = 1
If the "log_martians" kernel parameters are not set to "1", this is a finding.
M
5569