The warning banner for the TN3270 Telnet Server is not specified or properly specified.

From z/OS TSS STIG

Part of ITNT0030

Associated with IA controls: DCCS-1, ECWM-1, DCCS-2

Associated with: CCI-000048 CCI-001384 CCI-001385 CCI-001386 CCI-001387 CCI-001388

SV-3224r2_rule The warning banner for the TN3270 Telnet Server is not specified or properly specified.

Vulnerability discussion

A logon banner can be used to inform users about the environment during the initial logon. In the DISA environment, logon banners are used to warn users against unauthorized entry and the possibility of legal action for unauthorized users, and advise all users that system use constitutes consent to monitoring. Failure to display a logon warning banner without this type of information could adversely impact the ability to prosecute unauthorized users and users who abuse the system.

Check content

a) Refer to the Profile configuration file specified on the PROFILE DD statement in the TCPIP started task JCL. b) Ensure that all USS tables referenced in BEGINVTAM USSTCP statements include MSG10 text that specifies a logon banner. The below banner is mandatory and deviations are not permitted except as authorized in writing by the DoD Chief Information Officer. The thrust of this new policy is to make it clear that there is no expectation of privacy when using DoD information systems and all use of DoD information systems is subject to searching, auditing, inspecting, seizing, and monitoring, even if some personal use of a system is permitted: STANDARD MANDATORY DOD NOTICE AND CONSENT BANNER You are accessing a U.S. Government (USG) Information System (IS) that is provided for USG-authorized use only. By using this IS (which includes any device attached to this IS), you consent to the following conditions: -The USG routinely intercepts and monitors communications on this IS for purposes including, but not limited to, penetration testing, COMSEC monitoring, network operations and defense, personnel misconduct (PM), law enforcement (LE), and counterintelligence (CI) investigations. -At any time, the USG may inspect and seize data stored on this IS. -Communications using, or data stored on, this IS are not private, are subject to routine monitoring, interception, and search, and may be disclosed or used for any USG authorized purpose. -This IS includes security measures (e.g., authentication and access controls) to protect USG interests--not for your personal benefit or privacy. -Notwithstanding the above, using this IS does not constitute consent to PM, LE or CI investigative searching or monitoring of the content of privileged communications, or work product, related to personal representation or services by attorneys, psychotherapists, or clergy, and their assistants. Such communications and work product are private and confidential. See User Agreement for details. c) If all the items in (b) are true, there is NO FINDING. d) If any item in (b) is untrue, this is a FINDING.

Fix text

Review all USS tables referenced in BEGINVTAM USSTCP statements in the PROFILE.TCPIP file. Ensure the MSG10 text specifies a logon banner in accordance with DISA requirements. See MGG10 below: STANDARD MANDATORY DOD NOTICE AND CONSENT BANNER You are accessing a U.S. Government (USG) Information System (IS) that is provided for USG-authorized use only. By using this IS (which includes any device attached to this IS), you consent to the following conditions: -The USG routinely intercepts and monitors communications on this IS for purposes including, but not limited to, penetration testing, COMSEC monitoring, network operations and defense, personnel misconduct (PM), law enforcement (LE), and counterintelligence (CI) investigations. -At any time, the USG may inspect and seize data stored on this IS. -Communications using, or data stored on, this IS are not private, are subject to routine monitoring, interception, and search, and may be disclosed or used for any USG authorized purpose. -This IS includes security measures (e.g., authentication and access controls) to protect USG interests--not for your personal benefit or privacy. -Notwithstanding the above, using this IS does not constitute consent to PM, LE or CI investigative searching or monitoring of the content of privileged communications, or work product, related to personal representation or services by attorneys, psychotherapists, or clergy, and their assistants. Such communications and work product are private and confidential. See User Agreement for details. DOD requires that a logon warning banner be displayed. Within the TN3270 Telnet Server, the banner can be implemented through the USS table that is specified on a BEGINVTAM USSTCP statement. The text associated with message ID 10 (i.e., MSG10) in the USS table is sent to clients that are subject to USSTCP processing.

Pro Tips

Lavender hyperlinks in small type off to the right (of CSS class id, if you view the page source) point to globally unique URIs for each document and item. Copy the link location and paste anywhere you need to talk unambiguously about these things.

You can obtain data about documents and items in other formats. Simply provide an HTTP header Accept: text/turtle or Accept: application/rdf+xml.

Powered by sagemincer