RHEL 9 must be configured to disable the Asynchronous Transfer Mode kernel module.

Overview

Finding IDVersionRule IDIA ControlsSeverity
V-257804RHEL-09-213045SV-257804r1044853_ruleCCI-000381medium
Description
Disabling Asynchronous Transfer Mode (ATM) protects the system against exploitation of any flaws in its implementation.
STIGDate
Red Hat Enterprise Linux 9 Security Technical Implementation Guide2025-05-14

Related Frameworks

3 paths across 3 frameworks
NIST 800-531 mapping
CM-7
1.00
  • DISA · 2 · disa_xccdf · related
  • DISA · 2025-01-23 · disa_cci_list · equivalent
NIST 800-1711 mapping
3.4.6
1.00
  • DISA · 2 · 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-000381
1.00
  • DISA · 2 · disa_xccdf · related

Details

Check Text (C-257804r1044853_chk)

Verify that RHEL 9 disables the ability to load the ATM kernel module with the following command: $ grep -r atm /etc/modprobe.conf /etc/modprobe.d/* install atm /bin/false blacklist atm If the command does not return any output, or the line is commented out, and use of ATM is not documented with the information system security officer (ISSO) as an operational requirement, this is a finding.

Fix Text (F-61469r925398_fix)

To configure the system to prevent the atm kernel module from being loaded, add the following line to the file /etc/modprobe.d/atm.conf (or create atm.conf if it does not exist): install atm /bin/false blacklist atm