Re: [j-nsp] JUNOS vulnerability with malformed TCP packets

2010-01-12 Thread Jonas Frey
Hi, i havent heard about any attacks in the wild, yet. As i wrote...you cant protect yourself against this tcp bug. (I dont think anyone out there has a box running with all ports closed and is using only console to manage it...). Once you run BGP, OSPF, SSH, FTP or whatever you are vulnerable e

Re: [j-nsp] JUNOS vulnerability with malformed TCP packets

2010-01-12 Thread Andree Toonk
Hi, .-- My secret spy satellite informs me that at 1/12/10 9:22 AM Jonas Frey wrote: However 7.4 seems to be not vulnerable. Atleast the version i have here (7.4I20071211_1225_pgoyette) is not affected. Therefor i guess everything below this (atleast) is not vulnerable...that would explain w

Re: [j-nsp] JUNOS vulnerability with malformed TCP packets

2010-01-12 Thread Jonas Frey
Tim, firewall filters help somewhat. But still someone can spoof this packet and make it appear from one of your bgp peers, customers, management network, etc etc. There is no 100% effective way to protect against it. E.g. if you peer with 10.0.0.22 (your upstream) and you are 10.0.0.21 and i kno

Re: [j-nsp] JUNOS vulnerability with malformed TCP packets

2010-01-12 Thread Tim Eberhard
Jonas, Correct firewall filters *will* block it as the firewall filter will keep the tcp port even responding. However if your router has a tcp port open to a specific subnet IP's on that subnet will be able to exploit. In other words there is no specific firewall filter that can be put in place t

Re: [j-nsp] JUNOS vulnerability with malformed TCP packets

2010-01-12 Thread Jonas Frey
Hello, i have tried exploiting this on various junos version (8.2, 8.5, 9.2), all of them crashed immediatly at tcp_input() and rebooted after dumping the core. However 7.4 seems to be not vulnerable. Atleast the version i have here (7.4I20071211_1225_pgoyette) is not affected. Therefor i guess e

Re: [j-nsp] JUNOS vulnerability with malformed TCP packets

2010-01-08 Thread Florian Weimer
* Barry Greene: > The information is in the security advisory. Are the PSNs the security advisory you are referring to? I didn't see a security advisory as such, and I'm wondering if I'm missing anything. -- Florian Weimer BFK edv-consulting GmbH http://www.bfk.de/ Kriegs

Re: [j-nsp] JUNOS vulnerability with malformed TCP packets

2010-01-08 Thread Barry Greene
> > The information is in the security advisory. > > Are the PSNs the security advisory you are referring to? > > I didn't see a security advisory as such, and I'm wondering if I'm > missing anything. Yes. Juniper has been using the Tech Bulletins (PSNs, etc.) for our Security Advisories. h

Re: [j-nsp] JUNOS vulnerability with malformed TCP packets

2010-01-07 Thread Tommy Perniciaro
It was on the original bulletin and was removed today 01/07/09. Sorry to scare everyone :) Sent from my iPhone On Jan 7, 2010, at 2:13 PM, "Dan Evans" mailto:pzdev...@gmail.com>> wrote: Tommy, I just checked all PSN notifications associated with this SIRT bulletin and *none* of them list 10.

Re: [j-nsp] JUNOS vulnerability with malformed TCP packets

2010-01-07 Thread Dan Evans
Tommy, I just checked all PSN notifications associated with this SIRT bulletin and *none* of them list 10.x as an affected release. On Thu, Jan 7, 2010 at 2:58 PM, Tommy Perniciaro wrote: > How can that be the case when 10.x was released after 1/09 and it's on > the list of affected junos versi

Re: [j-nsp] JUNOS vulnerability with malformed TCP packets

2010-01-07 Thread Tommy Perniciaro
How can that be the case when 10.x was released after 1/09 and it's on the list of affected junos versions? Sent from my iPhone On Jan 7, 2010, at 11:24 AM, "harbor235" wrote: > Any code released after 1/28/09 has this issue fixed ... > > mike > > On Thu, Jan 7, 2010 at 1:18 PM, Brad Fleming

Re: [j-nsp] JUNOS vulnerability with malformed TCP packets

2010-01-07 Thread harbor235
Any code released after 1/28/09 has this issue fixed ... mike On Thu, Jan 7, 2010 at 1:18 PM, Brad Fleming wrote: > I think it depends how the vulnerability is discovered. If its discovered > by groups that are likely to exploit the issue, I'd prefer Juniper tell me > NOW. If it is discovered i

Re: [j-nsp] JUNOS vulnerability with malformed TCP packets

2010-01-07 Thread Barry Greene
> Does anyone know how far Juniper is planning to back port this fix > into their software? > > I am basically asking because I am sure a few of us are running some > older Juniper hardware and would like to figure out where we stand. > > Like 8.1x is not EOL until 05/06/2010 but ENG support st

Re: [j-nsp] JUNOS vulnerability with malformed TCP packets

2010-01-07 Thread Brad Fleming
I think it depends how the vulnerability is discovered. If its discovered by groups that are likely to exploit the issue, I'd prefer Juniper tell me NOW. If it is discovered internally by Juniper technicians (or in a trusted customer lab), I'm OK with Juniper fixing the issue and releasing

Re: [j-nsp] JUNOS vulnerability with malformed TCP packets

2010-01-07 Thread Mark Tinka
On Thursday 07 January 2010 09:04:11 pm Paul Stewart wrote: > Anyone know why some issues identified as early as > January 2009 are only being "released" now almost a year > later? Just curious on some of these security alerts > and timeframe... My guess is they wanted to have a fix out befor

Re: [j-nsp] JUNOS vulnerability with malformed TCP packets

2010-01-07 Thread Matt Yaklin
Hey all, Does anyone know how far Juniper is planning to back port this fix into their software? I am basically asking because I am sure a few of us are running some older Juniper hardware and would like to figure out where we stand. Like 8.1x is not EOL until 05/06/2010 but ENG support stopp

Re: [j-nsp] JUNOS vulnerability with malformed TCP packets

2010-01-07 Thread Darrell Root
> Anyone know why some issues identified as early as January 2009 are only > being "released" now almost a year later? Just curious on some of these > security alerts and timeframe... If Juniper finds a security DDOS vulnerability, and it's not general knowledge, I'd prefer them to integrate the

Re: [j-nsp] JUNOS vulnerability with malformed TCP packets

2010-01-07 Thread Daniel Verlouw
On Thu, 2010-01-07 at 08:04 -0500, Paul Stewart wrote: > Anyone know why some issues identified as early as January 2009 are only > being "released" now almost a year later? someone forgot to hit the 'send' button? ;) Interestingly enough, all of the PRs mentioned in these bulletins are not ava

Re: [j-nsp] JUNOS vulnerability with malformed TCP packets

2010-01-07 Thread Paul Stewart
Just curious on some of these security alerts and timeframe... Paul -Original Message- From: juniper-nsp-boun...@puck.nether.net [mailto:juniper-nsp-boun...@puck.nether.net] On Behalf Of Tore Anderson Sent: Thursday, January 07, 2010 7:56 AM To: Juniper-Nsp Subject: [j-nsp] JUNOS vul

[j-nsp] JUNOS vulnerability with malformed TCP packets

2010-01-07 Thread Tore Anderson
Hi list, I think most of you will find this interesting: http://www.theregister.co.uk/2010/01/07/juniper_critical_router_bug/ http://praetorianprefect.com/archives/2010/01/junos-juniper-flaw-exposes-core-routers-to-kernal-crash/ Best regards, -- Tore Anderson Redpill Linpro AS - http://www.redp