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🛡️ Sentinel: [CRITICAL] Fix command injection in file opening #143

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🛡️ Sentinel: [CRITICAL] Fix command injection in file opening #143

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4 changes: 4 additions & 0 deletions .jules/sentinel.md
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Original file line number Diff line number Diff line change
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## 2024-06-18 - Prevent Command Injection via os.startfile on Windows
**Vulnerability:** Command injection vulnerability via `subprocess.call(['start', filename], shell=True)` in `_open_resource_file`.
**Learning:** Windows filenames can legally contain shell metacharacters like `&` and `^`. An `os.path.isfile()` check is insufficient to prevent command injection if `shell=True` is used.
**Prevention:** Prefer using `os.startfile(filename)` over `subprocess.call` with `shell=True` when opening files natively on Windows.
2 changes: 1 addition & 1 deletion libs/utility_manager.py
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Expand Up @@ -43,7 +43,7 @@ def _open_resource_file(self, filename):
try:
if os.path.isfile(filename):
if platform.system() == "Windows":
subprocess.call(['start', filename], shell=True)
os.startfile(filename)
elif platform.system() == "Darwin":
subprocess.call(['open', filename])
elif platform.system() == "Linux":
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