Added an event for default rule set setuid or set setgid bit

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

events/syscall/set_setuid_or_set_setgid_bit.go

@@ -0,0 +1,49 @@
+//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 (
+	"os"
+	"os/exec"
+
+	"github.com/falcosecurity/event-generator/events"
+)
+
+var _ = events.Register(
+	SetSetuidOrSetSetgidBit,
+	events.WithDisabled(), // this rules is not included in falco_rules.yaml (stable rules), so disable the action
+)
+
+func SetSetuidOrSetSetgidBit(h events.Helper) error {
+	filename := "created-by-falco-event-generator"
+	if err := os.WriteFile(filename, nil, 0755); err != nil {
+		h.Log().WithError(err).Error("Error Creating an empty file")
+		return err
+	}
+	defer os.Remove(filename) // Remove the file after function return
+
+	// Set setuid bit with this command
+	cmd := exec.Command("chmod", "u+s", filename)
+
+	if err := cmd.Run(); err != nil {
+		h.Log().WithError(err).Error("Error running chmod commad")
+		return err
+	}
+
+	return nil
+}