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| Subject: | Re: [Full-Disclosure] /bin/rm file access vulnerability |
|---|---|
| Date: | Fri, 31 Dec 2004 09:54:55 -0600 |
On Thu, 2004-12-30 at 20:56 -0700, Jeffrey Denton wrote:
Nothing new here. That is one of the problems with DAC systems, the admin has total control over the system.
[...]
To prevent the above from happening, use a MAC or a RBAC system such as Trusted Solaris.
You should also be able to use file flags such as undeletable and immutable together with higher security levels (at least under BSD) to prevent root to remove/change the file under normal run-levels. (Normal run-levels excludes single-user mode and stunts like mounting the drive in non-native environments.) Regards, Frank
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