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AlmaLinux OS 9 must conceal, via the session lock, information previously visible on the display with a publicly viewable image.

Overview

Finding IDVersionRule IDIA ControlsSeverity
V-269104ALMA-09-001230SV-269104r1049986_ruleCCI-000060medium
Description
Setting the screensaver mode to blank-only conceals the contents of the display from passersby.
STIGDate
Cloud Linux AlmaLinux OS 9 Security Technical Implementation Guide2026-02-27

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.

IAC-24.1Pattern-Hiding Displays
1.00
NIST 800-530 mappings

No source states a mapping between these directly.

Also reachable in 2 hops (15) 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-11Device Lock
1.00
AC-11(1)Pattern-hiding Displays
1.00
AC-12Session Termination
1.00
AU-10Non-repudiation
1.00
IA-11Re-authentication
1.00
IA-2Identification and Authentication (Organizational Users)
1.00
IA-2(1)Multi-factor Authentication to Privileged Accounts
1.00
IA-2(12)Acceptance of PIV Credentials
1.00
IA-2(2)Multi-factor Authentication to Non-privileged Accounts
1.00
IA-2(3)Local Access to Privileged Accounts
1.00

+5 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.

3.1.10
1.00
CCI1 mapping
CCI-000060
1.00

Details

Check Text (C-269104r1049986_chk)

Note: This requirement assumes the use of the AlmaLinux OS 9 default graphical user interface, the GNOME desktop environment. If the system does not have any graphical user interface installed, this requirement is Not Applicable. To ensure the screensaver is configured to be blank, run the following command: $ gsettings get org.gnome.desktop.screensaver picture-uri If properly configured, the output should be "''". To ensure that users cannot set the screensaver background, run the following: $ grep picture-uri /etc/dconf/db/local.d/locks/* If properly configured, the output should be "/org/gnome/desktop/screensaver/picture-uri". If it is not set or configured properly, this is a finding.

Fix Text (F-73036r1049091_fix)

Configure AlmaLinux OS 9 to prevent a user from overriding the picture-uri setting for graphical user interfaces. First, in the file "/etc/dconf/db/local.d/00-security-settings" add or update the following lines: [org/gnome/desktop/screensaver] picture-uri='' Then, prevent user modification by adding the following line to "/etc/dconf/db/local.d/locks/00-security-settings-lock": /org/gnome/desktop/screensaver/picture-uri Update the dconf system databases: $ dconf update