Re: Re: OpenSSH security advisory: cbc.adv

2008-11-25 Thread dennis jackson
What documents have you been reading? Take a look at the actual vulnerability advisory. http://www.cpni.gov.uk/Docs/Vulnerability_Advisory_SSH.txt Or the original posting by OpenSSH http://www.securityfocus.com/archive/1/498558/30/0/threaded Where is there any condition related to National

Re: OpenSSH security advisory: cbc.adv

2008-11-25 Thread Nick Boyce
On Mon, Nov 24, 2008 at 11:39 PM, Damien Miller [EMAIL PROTECTED] wrote: On Mon, 24 Nov 2008, Nick Boyce wrote: Could someone please help the uncomprehending [i.e. me :-)] understand why or whether this is anything to be worried about at all ? Yes, the attack is very unlikely to work

Re: OpenSSH security advisory: cbc.adv

2008-11-25 Thread Damien Miller
On Mon, 24 Nov 2008, Nick Boyce wrote: [ahem] ... Sorry to be dumb, but ... On Fri, Nov 21, 2008 at 10:19 AM, Damien Miller [EMAIL PROTECTED] wrote: Based on the description contained in the CPNI report and a slightly more detailed description forwarded by CERT this issue appears to be

Re: OpenSSH security advisory: cbc.adv

2008-11-25 Thread Fabian Hänsel
Nick Boyce [EMAIL PROTECTED] wrote: [ahem] ... Sorry to be dumb, but ... On Fri, Nov 21, 2008 at 10:19 AM, Damien Miller [EMAIL PROTECTED] wrote: Based on the description contained in the CPNI report and a slightly more detailed description forwarded by CERT this issue appears to be

Re: OpenSSH security advisory: cbc.adv

2008-11-25 Thread Bob Beck
Maybe this was always clear, but along with that reassurance I guess you would recommend we all take your stated remedial action : [place] the following directive in sshd_config and ssh_config: Ciphers aes128-ctr,aes256-ctr,arcfour256,arcfour,aes128-cbc,aes256-cbc at the very next

Re: Re: OpenSSH security advisory: cbc.adv

2008-11-24 Thread Guillaume MULLER
Hey! They put a condition because of National Security. Should that mean that they use OpenSSH in National Security-sensitive applications (interesting ;););))? If so, should that mean that they implicitely recognize the very good work done by the community? If so, why not act politely

Re: OpenSSH security advisory: cbc.adv

2008-11-24 Thread Nick Boyce
[ahem] ... Sorry to be dumb, but ... On Fri, Nov 21, 2008 at 10:19 AM, Damien Miller [EMAIL PROTECTED] wrote: Based on the description contained in the CPNI report and a slightly more detailed description forwarded by CERT this issue appears to be substantially similar to a known weakness in