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The regular users default primary group must be staff (or equivalent) on AIX.

Overview

Finding IDVersionRule IDIA ControlsSeverity
V-215182AIX7-00-001016SV-215182r958362_ruleCCI-000015medium
Description
The /usr/lib/security/mkuser.default file contains the default primary groups for regular and admin users. Setting a system group as the regular users' primary group increases the risk that the regular users can access privileged resources.
STIGDate
IBM AIX 7.x Security Technical Implementation Guide2024-08-16

Related Frameworks

1 mapping across 3 frameworks
SCF0 mappings

No source states a mapping between these directly.

Also reachable in 3 hops (1) derived by us, not asserted by any source

Each of these is a route we composed by chaining published mappings. No publisher states a relationship between the two endpoints.

IAC-15.1Automated System Account Management (Directory Services)
0.50
NIST 800-530 mappings

No source states a mapping between these directly.

Also reachable in 2 hops (72) derived by us, not asserted by any source

Each of these is a route we composed by chaining published mappings. No publisher states a relationship between the two endpoints.

AC-10Concurrent Session Control
1.00
AC-12Session Termination
1.00
AC-17(1)Monitoring and Control
1.00
AC-17(10)Authenticate Remote Commands
1.00
AC-17(9)Disconnect or Disable Access
1.00
AC-2(1)Automated System Account Management
1.00
AC-2(10)Shared and Group Account Credential Change
1.00
AC-2(11)Usage Conditions
1.00
AC-2(2)Automated Temporary and Emergency Account Management
1.00
AC-2(3)Disable Accounts
1.00

+62 more (top 10 by confidence shown)

CCI1 mapping
CCI-000015
1.00

Details

Check Text (C-215182r958362_chk)

Check the default primary group for regular users: # lssec -f /etc/security/mkuser.default -s user -a pgrp The above command should yield the following output: user pgrp=staff If the above command shows that the primary group (pgrp) is not "staff", this is a finding.

Fix Text (F-16378r293998_fix)

Set the default primary groups for regular to be "staff". # chsec -f /etc/security/mkuser.default -s user -a pgrp=staff