Thread (15 messages) 15 messages, 5 authors, 2017-06-16

[PATCH v2 1/1] Add Trusted Path Execution as a stackable LSM

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From: Mimi Zohar <hidden>
Date: 2017-06-09 10:18:53
Also in: lkml

On Thu, 2017-06-08 at 23:50 -0400, Matt Brown wrote:
quoted
quoted
*? Issues:
??? *? Can be bypassed by interpreted languages such as python. You can run
?????? malicious code by doing: python -c 'evil code'
What's the recommendation for people interested in using TPE but
having interpreters installed?
If you don't need a given interpreter installed, uninstall it. While
this is common sense system hardening it especially would make a
difference under the TPE threat model.

I don't have a knock down answer for this. Interpreters are a hard
problem for TPE.
You might be interested in the minor LSM named "shebang", that I
posted as a proof of concept back in January, which restricts the
python interactive prompt/interpreter, but allows the scripts
themselves to be executed.

Mimi

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