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[Xen-users] Major /dev/urandom (Security) issue?
| To: | xen-users@xxxxxxxxxxxxxxxxxxx |
|---|---|
| Subject: | [Xen-users] Major /dev/urandom (Security) issue? |
| From: | Ken Bass <kbass@xxxxxxxxxxx> |
| Date: | Thu, 24 Jan 2008 19:08:47 -0500 |
| Delivery-date: | Thu, 24 Jan 2008 16:09:44 -0800 |
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I'm new to Xen. I'm using the Xen that comes with Centos 5.1 (which is
3.1). When I read from /dev/urandom, the values NEVER change. My domU is
a Centos 5.1 instance. Below I run the simple command twice and get the
same numbers. If I run another domU I get the SAME numbers!
-bash-3.1# od -tx4 -N 16 /dev/urandom 0000000 d920a168 b904ed93 1dc8962e d1a8c0b1 -bash-3.1# od -tx4 -N 16 /dev/urandom 0000000 d920a168 b904ed93 1dc8962e d1a8c0b1 I need to figure out: 1) How to fix this 2) Isnt this a major security flaw since the random seeds are static/known? _______________________________________________ Xen-users mailing list Xen-users@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-users |
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