simonw / simonw/tools

Argument injection

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Description

In python/extract_issues.py, an input such as --output=/tmp/../tmp/test_injection.txt can lead to argument injection. This allows to create or overwrite an existing file on the system.

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First steps

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  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start in python/extract_issues.py and trace how the --output value is parsed and used. Reproduce the reported input involving /tmp/../tmp/test_injection.txt, then verify that output handling no longer permits argument injection or unintended creation or overwriting of files.

Written by the indexing model from the issue text.

Assessment

Tech stack
python
Domain
cli, security
Issue type
Bug
Difficulty
2/5
Estimated time
1-3 hours
Activity status
Active
Clarity
Mostly clear
Newbie friendliness
68/100

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