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Fix block-unsafe-logins when running as non-root, add swaylock to list of safe auth services

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Aaron Rainbolt 2025-12-02 19:06:30 -06:00
parent b3eb739fe2
commit 0534a34ed7
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1 changed files with 13 additions and 3 deletions
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16
usr/libexec/security-misc/block-unsafe-logins#security-misc-shared
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@ -39,7 +39,7 @@ if [[ "$kernel_cmdline" =~ 'boot-role=sysmaint' ]]; then
printf '%s\n' 'ERROR: Rejecting non-sysmaint account in sysmaint session!' printf '%s\n' 'ERROR: Rejecting non-sysmaint account in sysmaint session!'
exit 1 exit 1
fi fi
true 'INFO: Running in sysmaint session and logging into sysmaint account, allowing authentication to proceed.' true 'INFO: Running in sysmaint session and authenticating as sysmaint account, allowing authentication to proceed.'
exit 0 exit 0
fi fi
@ -72,7 +72,7 @@ fi
## tools do not permit privilege escalation from one user to another, and ## tools do not permit privilege escalation from one user to another, and
## passwordless login is expected to work even for sensitive accounts. ## passwordless login is expected to work even for sensitive accounts.
login_service_list=( 'login' 'greetd' 'sshd' ) login_service_list=( 'login' 'greetd' 'sshd' 'swaylock' )
for login_service in "${login_service_list[@]}"; do for login_service in "${login_service_list[@]}"; do
if [ "$PAM_SERVICE" = "$login_service" ]; then if [ "$PAM_SERVICE" = "$login_service" ]; then
true "INFO: Login service '$PAM_SERVICE' is considered safe, allowing authentication to proceed." true "INFO: Login service '$PAM_SERVICE' is considered safe, allowing authentication to proceed."
@ -97,7 +97,17 @@ fi
## attack would require root privileges to execute though, so this is likely ## attack would require root privileges to execute though, so this is likely
## not a concern. We do this before checking if $PAM_USER is in the list of ## not a concern. We do this before checking if $PAM_USER is in the list of
## interactive users to keep the race window as short as possible. ## interactive users to keep the race window as short as possible.
if ! output="$(/usr/libexec/helper-scripts/get-password-status-list)"; then ##
## NOTE: PAM modules may run as non-root in some instances (such as when used
## by Swaylock).
if [ "$(id -u)" = '0' ]; then
passwd_status_list_cmd=(
'/usr/libexec/helper-scripts/get-password-status-list'
)
else
passwd_status_list_cmd=( 'leaprun' 'get-password-status-list' )
fi
if ! output="$("${passwd_status_list_cmd[@]}")"; then
printf '%s\n' 'ERROR: Failed to get password status list!' printf '%s\n' 'ERROR: Failed to get password status list!'
exit 1 exit 1
fi fi