Comment 48 for bug 125103

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Andrew Fuchs (fuchs.andy) wrote : Re: [Bug 125103] Re: ppa archives are not signed

On Sunday 31 August 2008 01:37:09 pm Chuck Renner wrote:

> The reason that this particular method is important to use is that end-
> users should not be forced to trust ALL PPA packages. Many of them
are
> probably completely unsafe, and it is very easy for a user with
> malicious intent to create a PPA account. It makes no sense to me to
> create one key used to sign all PPA packages. This could easily be
> exploited by malicious scripts to download malicious PPA packages.

Your point is moot. If an attacker can run a malicious script on a
machine, the machine is already compromised. Coincidently, for a
malicious package to be installed, a user (who has root access) must be
tricked into installing it, or the machine broken into. It would be just as
easy to trick a user into running a malicious script.

The only reason I can think of (and why I want it done) to sign PPAs
would be to prevent man in the middle attacks.