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Comment · 1 year ago
Of course, I didn't mean to put you in a spot. We can always continue this later once your thoughts have matured. Sadly I have an extremely full schedule so I dont think I have the badwidth to noodle on this at this stage but if and when you have something more concrete please do post it somewhere public and I will try to contribute to the discussion.
Comment · 1 year ago
So if I am to understand your proposal more concretely it is something like implement an escape code that the shell can use to turn off all other escape codes (presumably with some kind of listing mechanism) and then have the shell do that before launching any third party script/program/function? How would the shell know which escape codes the program it is running needs?

I can, kind of, see the utility of a pledge() type system within a single program, but in a shell, whose whole job is basically running programs it knows nothing about beyond their name? How would that work?

Comment · 1 year ago
Yup kitty revolutionized my terminal experience, hence the passion. I am sorry but since you seem to be passionate enough about ghostty to try to shill it in a article about a security vulnerability in it, I don't think you have a leg to stand on when it comes to complaining about my posts.

If you want to claim that ghostty is developed very rapidly it behoves you to do a little research and compare it against its peers before making that claim.

Comment · 1 year ago
You proposal does not address this issue since shells would still need full privileges.

This entire class of exploits (query responses with user controlled data leading to shells executing commands) would be removed if shells just moved to using the kitty keyboard protocol with all key events represented as escape codes and implemented a full escape code parser for data received form the terminal. You cannot embed an escape code inside another, or while technically you can, it is trivial to implement a security policy of disallowing these in both terminals and shells. Then barring implementation bugs in the escape code parser (which can easily be shipped as a standalone native code library) you dont have this entire class of issues and the associated one that the bracketed paste hack was created to address.

Comment · 1 year ago
Yes, but this is two well known and understood functions we are talking about, wrapping them is really not that hard.

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