Messages in this thread | | | Date | Wed, 19 Jan 2005 13:56:18 +0100 | From | Pavel Machek <> | Subject | Re: thoughts on kernel security issues |
| |
Hi!
> > For us thankfully, exec-shield has trapped quite a few remotely > > exploitable holes, preventing the above. > > One thing worth considering, but may be abit _too_ draconian, is a > capability that says "can execute ELF binaries that you can write to". > > Without that capability set, you can only execute binaries that you cannot > write to, and that you cannot _get_ write permission to (ie you can't be > the owner of them either - possibly only binaries where the owner is > root).
Well, if there's gdb installed on such machine, you can probably circumvent this.
Hmm, you can probably do /lib/ld-linux.so.2 your binary, no? Pavel -- 64 bytes from 195.113.31.123: icmp_seq=28 ttl=51 time=448769.1 ms
- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |