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fix: sanitize subprocess call in code.py #495

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fix: sanitize subprocess call in code.py #495

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3 changes: 2 additions & 1 deletion s03_permission/code.py
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Original file line number Diff line number Diff line change
Expand Up @@ -142,8 +142,9 @@ def run_glob(pattern: str) -> str:
DENY_LIST = ["rm -rf /", "sudo", "shutdown", "reboot", "mkfs", "dd if=", "> /dev/sda"]

def check_deny_list(command: str) -> str | None:
normalized = " ".join(command.lower().split())
for pattern in DENY_LIST:
if pattern in command:
if pattern.lower() in normalized:
return f"Blocked: '{pattern}' is on the deny list"
return None

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