Re: [exim-dev] [Bug 1044] CVE-2010-4345 exim privilege escal…

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Autor: W B Hacker
Data:  
CC: exim-dev, David Woodhouse
Assunto: Re: [exim-dev] [Bug 1044] CVE-2010-4345 exim privilege escalation
David Woodhouse wrote:
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> http://bugs.exim.org/show_bug.cgi?id=1044
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> --- Comment #2 from David Woodhouse<dwmw2@???> 2010-12-11 00:23:42 ---
> I found a bug in that patch; we can't just refrain from setting config_changed.
> That flag is used for more than the decision of whether to drop privs. It's
> used in child.c too.
>
> I think I'm going to end up doing a new config option TRUSTED_CONFIG_PREFIXES
> which is a colon-separated list of acceptable prefixes (or full filenames).
>
>


Presuming there is at least one known and published default, the rest is up to:

- privs on where that/those files is/are

- admin's choice of obfuscation, if any


IOW - helpful, certainly.

Panacea? Probably not. Just a higher bar.

But still a good idea, IMHO

Bill