STIGQter: STIG Summary: Red Hat Enterprise Linux 10 Security Technical Implementation Guide Version: 1 Release: 2 Benchmark Date: 01 Jul 2026:

RHEL 10 must limit the number of bogus Internet Control Message Protocol (ICMP) response errors logs.

DISA Rule

SV-281350r1167200_rule

Vulnerability Number

V-281350

Group Title

SRG-OS-000420-GPOS-00186

Rule Version

RHEL-10-800180

Severity

CAT II

CCI(s)

• CCI-002385 - Protect against or limit the effects of organization-defined types of denial of service events.
• CCI-001105 - Document each exception to the traffic flow policy with a supporting mission or business need and duration of that need.

Weight

10

Fix Recommendation

Configure RHEL 10 to not log bogus ICMP errors.

Create a configuration file if it does not already exist:

$ sudo vi /etc/sysctl.d/ipv4_icmp_ignore_bogus_error_responses.conf

Add the following line to the file:

net.ipv4.icmp_ignore_bogus_error_responses = 1

Reload settings from all system configuration files with the following command:

$ sudo sysctl --system

Check Contents

Verify RHEL 10 limits the number of bogus ICMP response errors logs.

Check the value of the "net.ipv4.icmp_ignore_bogus_error_response" variables with the following command:

$ sudo sysctl net.ipv4.icmp_ignore_bogus_error_responses
net.ipv4.icmp_ignore_bogus_error_responses = 1

If "net.ipv4.icmp_ignore_bogus_error_response" is not set to "1" or is missing, this is a finding.

Vulnerability Number

V-281350

Documentable

False

Rule Version

RHEL-10-800180

Severity Override Guidance

Verify RHEL 10 limits the number of bogus ICMP response errors logs.

Check the value of the "net.ipv4.icmp_ignore_bogus_error_response" variables with the following command:

$ sudo sysctl net.ipv4.icmp_ignore_bogus_error_responses
net.ipv4.icmp_ignore_bogus_error_responses = 1

If "net.ipv4.icmp_ignore_bogus_error_response" is not set to "1" or is missing, this is a finding.

Check Content Reference

M

Target Key

5733