The AIX DHCP client must not send dynamic DNS updates.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
| V-215427 | AIX7-00-003132 | SV-215427r991589_rule | CCI-000366 | medium |
| Description | ||||
| Dynamic DNS updates transmit unencrypted information about a system including its name and address and should not be used unless needed. | ||||
| STIG | Date | |||
| IBM AIX 7.x Security Technical Implementation Guide | 2024-08-16 | |||
Related Frameworks
4 paths across 3 frameworks
Related Frameworks
NIST 800-531 mapping
CM-6
1.00
- DISA · 3 · disa_xccdf · related
- DISA · 2025-01-23 · disa_cci_list · equivalent
NIST 800-1712 mappings
3.4.1
1.00
- DISA · 3 · disa_xccdf · related
- DISA · 2025-01-23 · disa_cci_list · equivalent
- NIST · Rev 2 (Feb 2020, errata Jan 2021) · nist_800_171_app_d · equivalent
3.4.2
1.00
- DISA · 3 · disa_xccdf · related
- DISA · 2025-01-23 · disa_cci_list · equivalent
- NIST · Rev 2 (Feb 2020, errata Jan 2021) · nist_800_171_app_d · equivalent
CCI1 mapping
CCI-000366
1.00
- DISA · 3 · disa_xccdf · related
Details
Check Text (C-215427r991589_chk)
If AIX does not use DHCP client, this is Not Applicable.
Determine if the system's DHCP client is configured to send dynamic DNS updates:
# grep "^updateDNS" /etc/dhcpc.opt /etc/dhcpcd.ini
If any lines are returned, this is a finding.
Fix Text (F-16623r294733_fix)
Configure the system's DHCP client to not send dynamic DNS updates.
Remove or comment-out "updateDNS" lines from the "/etc/dhcpcd.ini" and "/etc/dhcpc.opt" files.