Merge pull request #9200 from omacom/security/v4-0-2-input-asdcontrol-sshd

[4.0.2] Close unprivileged input and SSH escalation paths

(cherry picked from commit 21b27c5aed)

test/shell.d/input-group-migration-test.sh

@@ -0,0 +1,64 @@
+#!/bin/bash
+
+set -euo pipefail
+
+source "$(dirname "$0")/base-test.sh"
+
+migration="$ROOT/migrations/1787865477.sh"
+test_dir=$(mktemp -d)
+trap 'rm -rf "$test_dir"' EXIT
+
+stub_bin="$test_dir/bin"
+mkdir -p "$stub_bin"
+
+cat >"$stub_bin/id" <<'STUB'
+#!/bin/bash
+printf '%s\n' "${STUB_GROUPS:-wheel}"
+STUB
+cat >"$stub_bin/pacman" <<'STUB'
+#!/bin/bash
+[[ $1 == "-Qq" ]] || exit 2
+[[ " ${STUB_PACKAGES:-} " == *" $2 "* ]]
+STUB
+cat >"$stub_bin/sudo" <<'STUB'
+#!/bin/bash
+exec "$@"
+STUB
+cat >"$stub_bin/gpasswd" <<'STUB'
+#!/bin/bash
+printf '%s\n' "$*" >>"${GPASSWD_CALLS:?}"
+STUB
+cat >"$stub_bin/omarchy-state" <<'STUB'
+#!/bin/bash
+printf '%s\n' "$*" >>"${STATE_CALLS:?}"
+STUB
+chmod +x "$stub_bin"/*
+
+gpasswd_calls="$test_dir/gpasswd-calls"
+state_calls="$test_dir/state-calls"
+
+run_migration() {
+  rm -f "$gpasswd_calls" "$state_calls"
+  USER=tester STUB_GROUPS="$1" STUB_PACKAGES="${2:-}" \
+    GPASSWD_CALLS="$gpasswd_calls" STATE_CALLS="$state_calls" \
+    PATH="$stub_bin:$PATH" bash -euo pipefail "$migration"
+}
+
+run_migration "wheel input" >/dev/null
+grep -qxF -- "-d tester input" "$gpasswd_calls" || fail "migration removes default input membership"
+grep -qxF "set reboot-required" "$state_calls" || fail "migration flags the session change for reboot"
+pass "migration removes the blanket input grant"
+
+run_migration "wheel" >/dev/null
+[[ ! -e $gpasswd_calls ]] || fail "migration does not remove an already-absent group"
+[[ ! -e $state_calls ]] || fail "migration does not flag a reboot when nothing changed"
+pass "migration is idempotent after input membership is gone"
+
+run_migration "wheel input" xpadneo-dkms >/dev/null
+[[ ! -e $gpasswd_calls ]] || fail "migration preserves input for controller support"
+[[ ! -e $state_calls ]] || fail "preserved controller support does not flag a reboot"
+
+run_migration "wheel input" ydotool >/dev/null
+[[ ! -e $gpasswd_calls ]] || fail "migration preserves input for ydotool"
+[[ ! -e $state_calls ]] || fail "preserved ydotool support does not flag a reboot"
+pass "migration preserves deliberate input-group opt-ins"