IBM z/OS UNIX Telnet Server warning banner must be properly specified.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
| V-223642 | ACF2-UT-000040 | SV-223642r958586_rule | CCI-001384 | medium |
| Description | ||||
| Display of a standardized and approved use notification before granting access to the publicly accessible operating system ensures privacy and security notification verbiage used is consistent with applicable federal laws, Executive Orders, directives, policies, regulations, standards, and guidance. System use notifications are required only for access via logon interfaces with human users and are not required when such human interfaces do not exist. | ||||
| STIG | Date | |||
| IBM z/OS ACF2 Security Technical Implementation Guide | 2025-06-24 | |||
Related Frameworks
5 mappings across 4 frameworks
Related 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.
- DISA STIG Benchmark (XCCDF)9intersects(normalised)
- DISA CCI List2025-01-23equal to(normalised)
- SCF Secure Traceability Relationship Mapping (STRM)2026.2equal to
NIST 800-530 mappings
No source states a mapping between these directly.
Also reachable in 2 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.
- DISA STIG Benchmark (XCCDF)9intersects(normalised)
- DISA CCI List2025-01-23equal to(normalised)
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.
3.1.9
1.00
- DISA STIG Benchmark (XCCDF)9intersects(normalised)
- DISA CCI List2025-01-23equal to(normalised)
- NIST SP 800-171 Rev 2, Appendix DRev 2 (Feb 2020, errata Jan 2021)equal to(normalised)
CCI5 mappings
CCI-001384
1.00
- DISA STIG Benchmark (XCCDF)9intersects(normalised)
CCI-001385
1.00
- DISA STIG Benchmark (XCCDF)9intersects(normalised)
CCI-001386
1.00
- DISA STIG Benchmark (XCCDF)9intersects(normalised)
CCI-001387
1.00
- DISA STIG Benchmark (XCCDF)9intersects(normalised)
CCI-001388
1.00
- DISA STIG Benchmark (XCCDF)9intersects(normalised)
Details
Check Text (C-223642r958586_chk)
From the ISPF Command Shell enter:
ISHELL
Enter /etc/ for a pathname; a CD /etc/ may need to be issued.
select FILE NAME inetd.conf
If Option -D login is included on the otelnetd command, this is not a finding.
If Option -c 900 is included on the otelnetd command, this is not a finding.
NOTE: "900" indicates a session timeout value of "15" minutes and is currently the maximum value allowed.
Fix Text (F-25303r953873_fix)
Configure the startup parameters in the inetd.conf file for otelnetd to conform to the specifications below.
The otelnetd startup command includes the options -D login and -c 900, where:
-D login indicates that messages should be written to the syslogd facility for login and logout activity.
-c 900 indicates that the Telnet session should be terminated after "15" minutes of inactivity.
NOTE: "900" is the maximum value; any value between "1" and "900" is acceptable.