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//go:build linux | ||
// +build linux | ||
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// 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. | ||
*/ | ||
|
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package syscall | ||
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import ( | ||
"os/exec" | ||
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"github.com/falcosecurity/event-generator/events" | ||
) | ||
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var _ = events.Register( | ||
ChangeNamespacePrivilegesViaUnshare, | ||
events.WithDisabled(), // this rules is not included in falco_rules.yaml (stable rules), so disable the action | ||
) | ||
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func ChangeNamespacePrivilegesViaUnshare(h events.Helper) error { | ||
if h.InContainer() { | ||
cmd := exec.Command("unshare") | ||
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h.Log().Infof("Change namespace privileges via unshare") | ||
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if err := cmd.Run(); err != nil { | ||
return err | ||
} | ||
} | ||
return nil | ||
} |
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// 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. | ||
*/ | ||
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package syscall | ||
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import ( | ||
"os" | ||
"os/exec" | ||
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"github.com/falcosecurity/event-generator/events" | ||
) | ||
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var _ = events.Register(CreateHardlinkOverSensitiveFiles) | ||
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func CreateHardlinkOverSensitiveFiles(h events.Helper) error { | ||
path, err := exec.LookPath("ln") | ||
if err != nil { | ||
// if we don't have a ln, just bail | ||
return &events.ErrSkipped{ | ||
Reason: "ln utility not found in path", | ||
} | ||
} | ||
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tmpDir, err := os.MkdirTemp(os.TempDir(), "event-generator-syscall-CreateHardlinkOverSensitiveFiles") | ||
if err != nil { | ||
return err | ||
} | ||
defer os.ReadDir(tmpDir) | ||
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cmd := exec.Command(path, "-v", "/etc", tmpDir+"/etc_link") | ||
return cmd.Run() | ||
} |
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// 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. | ||
*/ | ||
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package syscall | ||
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import ( | ||
"os" | ||
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"github.com/falcosecurity/event-generator/events" | ||
) | ||
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var _ = events.Register( | ||
CreateHiddenFileOrDirectory, | ||
events.WithDisabled(), // this rule is not included in falco_rules.yaml (stable rules), so disable the action | ||
) | ||
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func CreateHiddenFileOrDirectory(h events.Helper) error { | ||
// Create a hidden directory | ||
const directoryname = "/.created-by-event-generator" | ||
h.Log().Infof("Created a hidden directory %s", directoryname) | ||
defer os.Remove(directoryname) // Remove after function return | ||
return os.Mkdir(directoryname, 0755) | ||
} |
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// 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. | ||
*/ | ||
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package syscall | ||
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import ( | ||
"os/exec" | ||
"github.com/falcosecurity/event-generator/events" | ||
) | ||
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var _ = events.Register( | ||
DecodingPayloadInContainer, | ||
events.WithDisabled(), // this rule is not included in falco_rules.yaml (stable rules), so disable the action | ||
) | ||
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func DecodingPayloadInContainer(h events.Helper) error { | ||
if h.InContainer() { | ||
encodedPayload := "ZGVjb2RlZF9ieV9ldmVudC1nZW5lcmF0b3I=" | ||
cmd := exec.Command("echo", encodedPayload, "|", "base64", "-d") | ||
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err := cmd.Run() | ||
if err != nil { | ||
return err | ||
} | ||
} | ||
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return nil | ||
} |
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// 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. | ||
*/ | ||
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package syscall | ||
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import ( | ||
"os" | ||
"path/filepath" | ||
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"github.com/falcosecurity/event-generator/events" | ||
) | ||
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var _ = events.Register( | ||
DeleteOrRenameShellHistory, | ||
events.WithDisabled(), // this rule is not included in falco_rules.yaml (stable rules), so disable the action | ||
) | ||
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func DeleteOrRenameShellHistory(h events.Helper) error { | ||
// Define the path to the file | ||
tmpDir := "/tmp" | ||
tmpFile := filepath.Join(tmpDir, "ash_history") | ||
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// Create the file | ||
file, err := os.Create(tmpFile) | ||
if err != nil { | ||
return err | ||
} | ||
file.Close() | ||
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// Remove the file | ||
if err := os.Remove(tmpFile); err != nil { | ||
return err | ||
} | ||
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return nil | ||
} |
44 changes: 44 additions & 0 deletions
44
events/syscall/kubernetes_client_tool_launched_in_container.go
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//go:build linux | ||
// +build linux | ||
|
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// 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. | ||
*/ | ||
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package syscall | ||
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import ( | ||
"os/exec" | ||
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"github.com/falcosecurity/event-generator/events" | ||
) | ||
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var _ = events.Register( | ||
kubernetesClientToolLaunchedInContainer, | ||
events.WithDisabled(), // this rules is not included in falco_rules.yaml (stable rules), so disable the action | ||
) | ||
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func kubernetesClientToolLaunchedInContainer(h events.Helper) error { | ||
if h.InContainer() { | ||
kubectl, err := exec.LookPath("kubectl") | ||
if err != nil { | ||
h.Log().Warnf("kubectl is needed to launch this action") | ||
return err | ||
} | ||
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cmd := exec.Command(kubectl) | ||
h.Log().Infof("Kubernetes Client Tool Launched In Container") | ||
return cmd.Run() | ||
} | ||
return nil | ||
} |
37 changes: 37 additions & 0 deletions
37
events/syscall/launch_remote_file_copy_tools_inside_container.go
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---|---|---|
@@ -0,0 +1,37 @@ | ||
//go:build linux | ||
// +build linux | ||
|
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// 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. | ||
*/ | ||
|
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package syscall | ||
|
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import ( | ||
"os/exec" | ||
|
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"github.com/falcosecurity/event-generator/events" | ||
) | ||
|
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var _ = events.Register( | ||
LaunchIngressRemoteFileCopyToolsInsideContainer, | ||
events.WithDisabled(), // this rules is not included in falco_rules.yaml (stable rules), so disable the action | ||
) | ||
|
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func LaunchIngressRemoteFileCopyToolsInsideContainer(h events.Helper) error { | ||
if h.InContainer() { | ||
cmd := exec.Command("wget") | ||
return cmd.Run() | ||
} | ||
return nil | ||
} |
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