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CCE
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CCE-91171-9

Platform: cpe:/o:ubuntu:ubuntu_linux:14.04Date: (C)2017-03-14   (M)2023-07-04



Log Suspicious Packets (Scored) When enabled, this feature logs packets with un-routable source addresses to the kernel log.


Parameter:

[enable/disable]


Technical Mechanism:

Enabling this feature and logging these packets allows an administrator to investigate the possibility that an attacker is sending spoofed packets to their server. Fix: Set the net.ipv4.conf.all.log_martians and net.ipv4.conf.default.log_martians parameters to 1 in /etc/sysctl.conf: net.ipv4.conf.all.log_martians=1 net.ipv4.conf.default.log_martians=1 Modify active kernel parameters to match: # /sbin/sysctl -w net.ipv4.conf.all.log_martians=1 # /sbin/sysctl -w net.ipv4.conf.default.log_martians=1 # /sbin/sysctl -w net.ipv4.route.flush=1

CCSS Severity:CCSS Metrics:
CCSS Score : 7.3Attack Vector: NETWORK
Exploit Score: 3.9Attack Complexity: LOW
Impact Score: 3.4Privileges Required: NONE
Severity: HIGHUser Interaction: NONE
Vector: AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:LScope: UNCHANGED
 Confidentiality: LOW
 Integrity: LOW
 Availability: LOW
  

References:
Resource IdReference
SCAP Repo OVAL Definitionoval:org.secpod.oval:def:33890


OVAL    1
oval:org.secpod.oval:def:33890
XCCDF    1
xccdf_org.secpod_benchmark_general_Ubuntu_14_04

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