STIGQter STIGQter: STIG Summary: Canonical Ubuntu 24.04 LTS Security Technical Implementation Guide Version: 1 Release: 6 Benchmark Date: 01 Jul 2026:

Ubuntu 24.04 LTS must be configured to enforce the acknowledgement of the Standard Mandatory DOD Notice and Consent Banner for all SSH connections.

DISA Rule

SV-270694r1066571_rule

Vulnerability Number

V-270694

Group Title

SRG-OS-000024-GPOS-00007

Rule Version

UBTU-24-200680

Severity

CAT II

CCI(s)

Weight

10

Fix Recommendation

Configure Ubuntu 24.04 LTS to prompt a user to acknowledge the Standard Mandatory DOD Notice and Consent Banner before granting access:

$ sudo vi /etc/profile.d/ssh_confirm.sh
#!/bin/bash

if [ -n "$SSH_CLIENT" ] || [ -n "$SSH_TTY" ]; then
while true; do
read -p "

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.

Do you agree? [y/N] " yn
case $yn in
[Yy]* ) break ;;
[Nn]* ) exit 1 ;;
esac
done
fi

Note: The "ssh_confirm.sh" script is provided as a supplemental file to this document.

Check Contents

Verify Ubuntu 24.04 LTS is configured to prompt a user to acknowledge the Standard Mandatory DOD Notice and Consent Banner before granting access with the following command:

$ less /etc/profile.d/ssh_confirm.sh
#!/bin/bash

if [ -n "$SSH_CLIENT" ] || [ -n "$SSH_TTY" ]; then
while true; do
read -p "


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.

Do you agree? [y/N] " yn
case $yn in
[Yy]* ) break ;;
[Nn]* ) exit 1 ;;
esac
done
fi

If the output does not match the text above, this is a finding.

Vulnerability Number

V-270694

Documentable

False

Rule Version

UBTU-24-200680

Severity Override Guidance

Verify Ubuntu 24.04 LTS is configured to prompt a user to acknowledge the Standard Mandatory DOD Notice and Consent Banner before granting access with the following command:

$ less /etc/profile.d/ssh_confirm.sh
#!/bin/bash

if [ -n "$SSH_CLIENT" ] || [ -n "$SSH_TTY" ]; then
while true; do
read -p "


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.

Do you agree? [y/N] " yn
case $yn in
[Yy]* ) break ;;
[Nn]* ) exit 1 ;;
esac
done
fi

If the output does not match the text above, this is a finding.

Check Content Reference

M

Target Key

5673