From mboxrd@z Thu Jan 1 00:00:00 1970 From: Pasi =?iso-8859-1?Q?K=E4rkk=E4inen?= Subject: Re: Bug - IPv4 Address Date: Tue, 22 Apr 2014 12:06:48 +0300 Message-ID: <20140422090648.GE18930@reaktio.net> References: <20140419114157.C46747F8@net.hr> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Content-Disposition: inline In-Reply-To: <20140419114157.C46747F8@net.hr> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xen.org Errors-To: xen-devel-bounces@lists.xen.org To: "Ivan Stojcevic (Tronyx)" Cc: xen-devel@lists.xen.org List-Id: xen-devel@lists.xenproject.org On Sat, Apr 19, 2014 at 11:41:57AM +0200, Ivan Stojcevic (Tronyx) wrote: > Hello, > Hello, > > I just found a very sensitive bug in KVM and Xen platforms. Easily if you > have VPS hosted on Xen or KVM you can assign yourself a IPv4 address for > free and bypass regular system with billing. > > I tried this on many VPS hosting companies and it work on all. If you > would like to talk with me about this, you can get me on skype: ivans2901 > This has nothing to do with Xen or KVM. It's a bug in the vpshosting/cloud/billing platform they're using, or more specifically in the broken networking/security configuration which allows that. -- Pasi