STIGQter: STIG Summary: Oracle Linux 6 Security Technical Implementation Guide Version: 2 Release: 3 Benchmark Date: 23 Apr 2021:

The rdisc service must not be running.

DISA Rule

SV-208942r603263_rule

Vulnerability Number

V-208942

Group Title

SRG-OS-000096

Rule Version

OL6-00-000268

Severity

CAT III

CCI(s)

• CCI-000382 - The organization configures the information system to prohibit or restrict the use of organization-defined functions, ports, protocols, and/or services.

Weight

10

Fix Recommendation

The "rdisc" service implements the client side of the ICMP Internet Router Discovery Protocol (IRDP), which allows discovery of routers on the local subnet. If a router is discovered then the local routing table is updated with a corresponding default route. By default this daemon is disabled. The "rdisc" service can be disabled with the following commands:

# chkconfig rdisc off
# service rdisc stop

Check Contents

To check that the "rdisc" service is disabled in system boot configuration, run the following command:

# chkconfig "rdisc" --list

Output should indicate the "rdisc" service has either not been installed, or has been disabled at all runlevels, as shown in the example below:

# chkconfig "rdisc" --list
"rdisc" 0:off 1:off 2:off 3:off 4:off 5:off 6:off

Run the following command to verify "rdisc" is disabled through current runtime configuration:

# service rdisc status

If the service is disabled the command will return the following output:

rdisc is stopped

If the service is running, this is a finding.

Vulnerability Number

V-208942

Documentable

False

Rule Version

OL6-00-000268

Severity Override Guidance

To check that the "rdisc" service is disabled in system boot configuration, run the following command:

# chkconfig "rdisc" --list

Output should indicate the "rdisc" service has either not been installed, or has been disabled at all runlevels, as shown in the example below:

# chkconfig "rdisc" --list
"rdisc" 0:off 1:off 2:off 3:off 4:off 5:off 6:off

Run the following command to verify "rdisc" is disabled through current runtime configuration:

# service rdisc status

If the service is disabled the command will return the following output:

rdisc is stopped

If the service is running, this is a finding.

Check Content Reference

M

Target Key

2928

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