Added an event for polkit local privilege escalation ulnerability

Signed-off-by: GLVS Kiriti <[email protected]>

events/syscall/polkit_local_privilege_escalation_vulnerability.go

@@ -0,0 +1,32 @@
+//go:build linux
+// +build linux
+
+// SPDX-License-Identifier: Apache-2.0
+/*
+Copyright (C) 2024 The Falco Authors.
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+    http://www.apache.org/licenses/LICENSE-2.0
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package syscall
+
+import (
+	"github.com/falcosecurity/event-generator/events"
+)
+
+var _ = events.Register(
+	PolkitLocalPrivilegeEscalationVulnerability,
+	events.WithDisabled(), // this rules is not included in falco_rules.yaml (stable rules), so disable the action
+)
+
+func PolkitLocalPrivilegeEscalationVulnerability(h events.Helper) error {
+	//To setuid to something non-root user
+	return runAsUser(h, "daemon", "pkexec", "--user", "daemon")
+}