IF LDAP is used, AIX LDAP client must use SSL to authenticate with LDAP server.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
| V-215204 | AIX7-00-001045 | SV-215204r987796_rule | CCI-000197 | high |
| Description | ||||
| While LDAP client's authentication type is ldap_auth (server-side authentication), the client sends password to the server in clear text for authentication. SSL must be used in this case. | ||||
| STIG | Date | |||
| IBM AIX 7.x Security Technical Implementation Guide | 2024-08-16 | |||
Details
Check Text (C-215204r987796_chk)
Run the following command to check if "authtype" is "ldap_auth":
# grep -iE "^authtype:[[:blank:]]*ldap_auth" /etc/security/ldap/ldap.cfg
The above command should yield the following output:
authtype:ldap_auth
Run the following command to check if SSL is not used in the "/etc/security/ldap/ldap.cfg" file:
# grep -iE "^useSSL:[[:blank:]]*yes" /etc/security/ldap/ldap.cfg
The above command should yield the following output:
useSSL:yes
If the first command displays "authtype:ldap_auth" but the second command does not display "useSSL:yes", this is a finding.
Fix Text (F-16400r294064_fix)
Edit the "/etc/security/ldap/ldap.cfg" file to have the following line:
useSSL:yes
Configure the LDAP server and LDAP client to use the SSL according to AIX LDAP documentation.
Restart the client daemon:
# restart-secldapclntd