Messages in this thread | | | Date | Wed, 25 Oct 2006 11:42:56 -0600 | From | "Jeff V. Merkey" <> | Subject | Re: Security issues with local filesystem caching |
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David Howells wrote:
>Jeff V. Merkey <jmerkey@wolfmountaingroup.com> wrote: > > > >>SELinux support addresses all of these issues for B1 level security quite >>well with mandatory access controls at the fs layers. In fact, it works so >>well, when enabled you cannot even run apache on top of an FS unless >>configured properly. >> >> > >How? The problem I've got is that the caching code would be creating and >accessing files and directories with the wrong security context - that of the >calling process - and not a context suitable for sharing things in the cache >whilst protecting them from userspace as best we can. > > Have it access them as 0.0 (root) when you change the fsuid, etc. and I think this would satisfy security concerns. I agree that it sounds like someone needs to instrument MAC layers with this subsystem.
Jeff
>David > > >
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