Scout (stemado) MCP Server

In the server's implementation (`npm/index.js:18`): Spawning a shell/process is command-execution capability; with unsanitized tool input it is command injection / RCE. This is read from the code itself — not from the tool description — so a poisoned server cannot hide it behind honest-looking metadata.

Evidence: , execSync } = require("child_process"); const IS_WIN = process.platform === "win32"; function commandExists(cmd) {

Fix: Review this call path: confirm it never receives unsanitized tool input, constrain it, or remove it. Treat a server whose code reaches these sinks as high-capability regardless of what its tools claim.

Location: server npm/index.js

In the server's implementation (`src/scout/profile_clone.py:167`): Spawning a shell/process is command-execution capability; with unsanitized tool input it is command injection / RCE. This is read from the code itself — not from the tool description — so a poisoned server cannot hide it behind honest-looking metadata.

Evidence: result = subprocess.run( ["esentutl.exe", "/y", src, "/d", dst, "/o"],

Fix: Review this call path: confirm it never receives unsanitized tool input, constrain it, or remove it. Treat a server whose code reaches these sinks as high-capability regardless of what its tools claim.

Location: server src/scout/profile_clone.py

In the server's implementation (`src/scout/scheduler/linux.py:45`): Spawning a shell/process is command-execution capability; with unsanitized tool input it is command injection / RCE. This is read from the code itself — not from the tool description — so a poisoned server cannot hide it behind honest-looking metadata.

Evidence: ne.""" result = subprocess.run( ["crontab", "-l"], capture_output=True, text=True,

Fix: Review this call path: confirm it never receives unsanitized tool input, constrain it, or remove it. Treat a server whose code reaches these sinks as high-capability regardless of what its tools claim.

Location: server src/scout/scheduler/linux.py

In the server's implementation (`src/scout/scheduler/macos.py:124`): Spawning a shell/process is command-execution capability; with unsanitized tool input it is command injection / RCE. This is read from the code itself — not from the tool description — so a poisoned server cannot hide it behind honest-looking metadata.

Evidence: h.exists(): subprocess.run( ["launchctl", "unload", str(plist_path)], captur

Fix: Review this call path: confirm it never receives unsanitized tool input, constrain it, or remove it. Treat a server whose code reaches these sinks as high-capability regardless of what its tools claim.

Location: server src/scout/scheduler/macos.py

In the server's implementation (`src/scout/scheduler/windows.py:31`): Spawning a shell/process is command-execution capability; with unsanitized tool input it is command injection / RCE. This is read from the code itself — not from the tool description — so a poisoned server cannot hide it behind honest-looking metadata.

Evidence: "] = "1" return subprocess.run( ["schtasks.exe", *args], capture_output=True,

Fix: Review this call path: confirm it never receives unsanitized tool input, constrain it, or remove it. Treat a server whose code reaches these sinks as high-capability regardless of what its tools claim.

Location: server src/scout/scheduler/windows.py

In the server's implementation (`src/scout/screencast.py:357`): Spawning a shell/process is command-execution capability; with unsanitized tool input it is command injection / RCE. This is read from the code itself — not from the tool description — so a poisoned server cannot hide it behind honest-looking metadata.

Evidence: 5) result = subprocess.run( cmd, capture_output=True, timeou

Fix: Review this call path: confirm it never receives unsanitized tool input, constrain it, or remove it. Treat a server whose code reaches these sinks as high-capability regardless of what its tools claim.

Location: server src/scout/screencast.py

In the server's implementation (`npm/index.js:24`): A shell/process command assembled from concatenated or interpolated values is command injection when any part is attacker-influenced — the OWASP canonical RCE flow. Verify what reaches the interpolated value. This is read from the code itself — not from the tool description — so a poisoned server cannot hide it behind honest-looking metadata.

Evidence: ists(cmd) { try { execSync(`${cmd} --version`, { stdio: "ignore", shell: true }); return true; } catch {

Fix: Review this call path: confirm it never receives unsanitized tool input, constrain it, or remove it. Treat a server whose code reaches these sinks as high-capability regardless of what its tools claim.

Location: server npm/index.js

In a packaging/dev/install script (shipped, but not the server runtime) (`scripts/capture_annotated_demos.py:306`): Spawning a shell/process is command-execution capability; with unsanitized tool input it is command injection / RCE. This is read from the code itself — not from the tool description — so a poisoned server cannot hide it behind honest-looking metadata.

Evidence: etter color quality subprocess.run([ ffmpeg, "-y", "-framerate", str(fps), "-i", input_patte

Fix: Review this call path: confirm it never receives unsanitized tool input, constrain it, or remove it. Treat a server whose code reaches these sinks as high-capability regardless of what its tools claim.

Location: server scripts/capture_annotated_demos.py

In a packaging/dev/install script (shipped, but not the server runtime) (`tests/test_native_messaging_host.py:38`): Spawning a shell/process is command-execution capability; with unsanitized tool input it is command injection / RCE. This is read from the code itself — not from the tool description — so a poisoned server cannot hide it behind honest-looking metadata.

Evidence: input_msg) result = subprocess.run( [sys.executable, NM_HOST_SCRIPT], input=encoded, capture

Fix: Review this call path: confirm it never receives unsanitized tool input, constrain it, or remove it. Treat a server whose code reaches these sinks as high-capability regardless of what its tools claim.

Location: server tests/test_native_messaging_host.py