Re: Intricacies of submodules

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Roman V. Shaposhnik wrote:
> On Thu, 2008-04-17 at 14:09 -0400, Jeremy Maitin-Shepard wrote:

>>> And here's one more thing: in-tree .gitconfig and in-tree 
>>> update-my-git-settings.sh are absolutely identical as far
>>> as their security ramifications are concerned. If you really paranoid
>>> you have to eyeball either of them.
>> 
>> There is a huge difference: if you allow in-tree .gitconfig by default,
>> then git clone <some-repository> becomes an unsafe operation.  I can't
>> even inspect some arbitrary repository to _see_ if I like the code and
>> think it is safe very easily, since I'd normally do that by cloning the
>> repository.

[...]
>> Obviously any configuration option that specifies a shell command to run
>> is unsafe to specify in an in-tree .gitconfig.  As Junio noted,
>> smudge/clean commands are especially unsafe because they will be
>> executed even if the user only uses the clone command.
> 
> Are you saying that a *remote* in-tree .gitconfig would be capable of
> affecting *local* system before the end of the clone operation?

At the end of clone operation you usually do a checkout. clean/smudge
commands could wipe out your disk at the end of clone.  And one usually
does checkout to view contents of repository (alternative is to use
plumbing git-cat-file, which does not use .gitattributes).

-- 
Jakub Narebski
Warsaw, Poland
ShadeHawk on #git


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