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The AIX SSH daemon must be configured to only use FIPS 140-2 approved ciphers.

Overview

Finding IDVersionRule IDIA ControlsSeverity
V-215402AIX7-00-003100SV-215402r958408_ruleCCI-000068medium
Description
Without confidentiality protection mechanisms, unauthorized individuals may gain access to sensitive information via a remote access session. Remote access is access to DoD nonpublic information systems by an authorized user (or an information system) communicating through an external, non-organization-controlled network. Remote access methods include, for example, dial-up, broadband, and wireless. Encryption provides a means to secure the remote connection to prevent unauthorized access to the data traversing the remote access connection (e.g., RDP), thereby providing a degree of confidentiality. The encryption strength of a mechanism is selected based on the security categorization of the information.
STIGDate
IBM AIX 7.x Security Technical Implementation Guide2026-06-15

Related Frameworks

1 mapping across 4 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.

NET-14.2Protection of Confidentiality / Integrity Using Encryption
1.00
NIST 800-530 mappings

No source states a mapping between these directly.

Also reachable in 2 hops (33) 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-17(1)Monitoring and Control
1.00
AC-17(2)Protection of Confidentiality and Integrity Using Encryption
1.00
AC-3Access Enforcement
1.00
CM-6Configuration Settings
1.00
CM-6(1)Automated Management, Application, and Verification
1.00
CM-7Least Functionality
1.00
CM-7(1)Periodic Review
1.00
IA-2(8)Access to Accounts — Replay Resistant
1.00
IA-2(9)Network Access to Non-privileged Accounts — Replay Resistant
1.00
IA-3Device Identification and Authentication
1.00

+23 more (top 10 by confidence shown)

NIST 800-1710 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.

3.1.13
1.00
CCI1 mapping
CCI-000068
1.00

Details

Check Text (C-215402r958408_chk)

Check the SSH daemon configuration for allowed ciphers by running the following command: # grep -i ciphers /etc/ssh/sshd_config | grep -v '^#' The above command should yield the following output: Ciphers aes128-ctr,aes192-ctr,aes256-ctr If any of the following conditions are true, this is a finding. 1. No line is returned (default ciphers); 2. The returned ciphers list contains any cipher not starting with aes; 3. The returned ciphers list contains any cipher ending with cbc.

Fix Text (F-16598r294658_fix)

Edit the "/etc/ssh/sshd_config" file and add or edit a "Ciphers" line like this: Ciphers aes128-ctr,aes192-ctr,aes256-ctr Restart the SSH daemon: # stopsrc -s sshd # startsrc -s sshd