STIGQter: STIG Summary: Oracle Linux 7 Security Technical Implementation Guide Version: 2 Release: 3 Benchmark Date: 23 Apr 2021:

The Oracle Linux operating system must prevent non-privileged users from executing privileged functions to include disabling, circumventing, or altering implemented security safeguards/countermeasures.

DISA Rule

SV-221707r603260_rule

Vulnerability Number

V-221707

Group Title

SRG-OS-000324-GPOS-00125

Rule Version

OL07-00-020020

Severity

CAT II

CCI(s)

• CCI-002165 - The information system enforces organization-defined discretionary access control policies over defined subjects and objects.
• CCI-002235 - The information system prevents non-privileged users from executing privileged functions to include disabling, circumventing, or altering implemented security safeguards/countermeasures.

Weight

10

Fix Recommendation

Configure the operating system to prevent non-privileged users from executing privileged functions to include disabling, circumventing, or altering implemented security safeguards/countermeasures.

Use the following command to map a new user to the "sysadm_u" role:

#semanage login -a -s sysadm_u <username>

Use the following command to map an existing user to the "sysadm_u" role:

#semanage login -m -s sysadm_u <username>

Use the following command to map a new user to the "staff_u" role:

#semanage login -a -s staff_u <username>

Use the following command to map an existing user to the "staff_u" role:

#semanage login -m -s staff_u <username>

Use the following command to map a new user to the "user_u" role:

# semanage login -a -s user_u <username>

Use the following command to map an existing user to the "user_u" role:

# semanage login -m -s user_u <username>

Check Contents

Note: Per OPORD 16-0080, the preferred intrusion detection system is McAfee Host Intrusion Prevention System (HIPS) in conjunction with SELinux. McAfee Endpoint Security for Linux (ENSL) is an approved alternative to McAfee Virus Scan Enterprise (VSE) and HIPS. For Oracle Linux 7 systems, SELinux is an approved alternative to McAfee HIPS. Regardless of whether or not McAfee HIPS or ENSL is installed, SELinux is interoperable with both McAfee products and SELinux is still required.

Verify the operating system prevents non-privileged users from executing privileged functions to include disabling, circumventing, or altering implemented security safeguards/countermeasures.

Get a list of authorized users (other than System Administrator and guest accounts) for the system.

Check the list against the system by using the following command:

# semanage login -l | more
Login Name SELinux User MLS/MCS Range Service
__default__ user_u s0-s0:c0.c1023 *
root unconfined_u s0-s0:c0.c1023 *
system_u system_u s0-s0:c0.c1023 *
joe staff_u s0-s0:c0.c1023 *

All administrators must be mapped to the "sysadm_u", "staff_u", or an appropriately tailored confined role as defined by the organization.

All authorized non-administrative users must be mapped to the "user_u" role.

If they are not mapped in this way, this is a finding.

Vulnerability Number

V-221707

Documentable

False

Rule Version

OL07-00-020020

Severity Override Guidance

Note: Per OPORD 16-0080, the preferred intrusion detection system is McAfee Host Intrusion Prevention System (HIPS) in conjunction with SELinux. McAfee Endpoint Security for Linux (ENSL) is an approved alternative to McAfee Virus Scan Enterprise (VSE) and HIPS. For Oracle Linux 7 systems, SELinux is an approved alternative to McAfee HIPS. Regardless of whether or not McAfee HIPS or ENSL is installed, SELinux is interoperable with both McAfee products and SELinux is still required.

Verify the operating system prevents non-privileged users from executing privileged functions to include disabling, circumventing, or altering implemented security safeguards/countermeasures.

Get a list of authorized users (other than System Administrator and guest accounts) for the system.

Check the list against the system by using the following command:

# semanage login -l | more
Login Name SELinux User MLS/MCS Range Service
__default__ user_u s0-s0:c0.c1023 *
root unconfined_u s0-s0:c0.c1023 *
system_u system_u s0-s0:c0.c1023 *
joe staff_u s0-s0:c0.c1023 *

All administrators must be mapped to the "sysadm_u", "staff_u", or an appropriately tailored confined role as defined by the organization.

All authorized non-administrative users must be mapped to the "user_u" role.

If they are not mapped in this way, this is a finding.

Check Content Reference

M

Target Key

4089

Comments