Re: [CentOS] Is there an openssh security problem?

2009-07-12 Thread James Matthews
I think if you use double authentication (both keys and a password) and put your SSH server on a different port then you are doing the best you can. You hope to prevent a 0-day but you cannot fully protect yourself... James On Fri, Jul 10, 2009 at 7:06 PM, Rob Townley rob.town...@gmail.com

Re: [CentOS] Is there an openssh security problem?

2009-07-10 Thread Coert Waagmeester
On Thu, 2009-07-09 at 15:18 -0700, Bill Campbell wrote: This appeared today on Macworld, an article saying this is probably a hoax: http://www.macworld.com/article/141628/2009/07/openssh_securityhoax.html?lsrc=rss_main Bill In my iptables setup I have the following rule: (excuse the ugly

Re: [CentOS] Is there an openssh security problem?

2009-07-10 Thread Rob Kampen
Coert Waagmeester wrote: On Thu, 2009-07-09 at 15:18 -0700, Bill Campbell wrote: This appeared today on Macworld, an article saying this is probably a hoax: http://www.macworld.com/article/141628/2009/07/openssh_securityhoax.html?lsrc=rss_main Bill In my iptables setup I have the

Re: [CentOS] Is there an openssh security problem?

2009-07-10 Thread Rainer Duffner
Rob Kampen schrieb: Not really protection - rather a deterrent - it just makes it slower for the script kiddies that try brute force attacks - they have to pace themselves to one try per minute rather than one or two per second. Thus they normally move on to an easier target. You can also

Re: [CentOS] Is there an openssh security problem?

2009-07-10 Thread Karanbir Singh
On 07/10/2009 02:59 PM, Rainer Duffner wrote: Brute-forcing has long-since started to go distributed, fooling fail2ban and similar scripts with just 3 or 4 checks per single source-host. I've never been a big fan of either denyhosts or fail2ban, both of them are just making it easier for

Re: [CentOS] Is there an openssh security problem?

2009-07-10 Thread Peter Kjellstrom
On Friday 10 July 2009, Rob Kampen wrote: Coert Waagmeester wrote: ... it only allows one NEW connection to ssh per minute. That is also a good protection right? ... Not really protection - rather a deterrent - it just makes it slower for the script kiddies that try brute force attacks

Re: [CentOS] Is there an openssh security problem?

2009-07-10 Thread Rob Townley
On Fri, Jul 10, 2009 at 9:33 AM, Peter Kjellstromc...@nsc.liu.se wrote: On Friday 10 July 2009, Rob Kampen wrote: Coert Waagmeester wrote: ... it only allows one NEW connection to ssh per minute. That is also a good protection right? ... Not really protection - rather a deterrent - it

Re: [CentOS] Is there an openssh security problem?

2009-07-09 Thread Michael Simpson
On 08/07/2009, Flaherty, Patrick pflahe...@wsi.com wrote: is there a security issue on CentOS 5.3 with openssh 4.3? I ask that cause of http://www.h-online.com/security/Rumours-of-critical-vulnerabi lity-in-OpenSSH-in-Red-Hat-Enterprise-Linux--/news/113712 and

Re: [CentOS] Is there an openssh security problem?

2009-07-09 Thread Bill Campbell
This appeared today on Macworld, an article saying this is probably a hoax: http://www.macworld.com/article/141628/2009/07/openssh_securityhoax.html?lsrc=rss_main Bill -- INTERNET: b...@celestial.com Bill Campbell; Celestial Software LLC URL: http://www.celestial.com/ PO Box 820; 6641 E.

Re: [CentOS] Is there an openssh security problem?

2009-07-08 Thread Peter Kjellstrom
On Tuesday 07 July 2009, Ray Van Dolson wrote: On Tue, Jul 07, 2009 at 10:31:36PM +0200, Geoff Galitz wrote: is there a security issue on CentOS 5.3 with openssh 4.3? If this is a real zero-day exploit.. then yes, there is an issue. The following link may be the best source of

Re: [CentOS] Is there an openssh security problem?

2009-07-08 Thread Flaherty, Patrick
is there a security issue on CentOS 5.3 with openssh 4.3? I ask that cause of http://www.h-online.com/security/Rumours-of-critical-vulnerabi lity-in-OpenSSH-in-Red-Hat-Enterprise-Linux--/news/113712 and http://secer.org/hacktools/0day-openssh-remote-exploit.html. Should ssh login from

[CentOS] Is there an openssh security problem?

2009-07-07 Thread Olaf Mueller
Hello, is there a security issue on CentOS 5.3 with openssh 4.3? I ask that cause of http://www.h-online.com/security/Rumours-of-critical-vulnerability-in-OpenSSH-in-Red-Hat-Enterprise-Linux--/news/113712 and http://secer.org/hacktools/0day-openssh-remote-exploit.html. Should ssh login from

Re: [CentOS] Is there an openssh security problem?

2009-07-07 Thread Geoff Galitz
is there a security issue on CentOS 5.3 with openssh 4.3? If this is a real zero-day exploit.. then yes, there is an issue. The following link may be the best source of information at the moment: http://isc.sans.org/diary.html?storyid=6742 FWIW, I think the second comment about

Re: [CentOS] Is there an openssh security problem?

2009-07-07 Thread Ray Van Dolson
On Tue, Jul 07, 2009 at 10:31:36PM +0200, Geoff Galitz wrote: is there a security issue on CentOS 5.3 with openssh 4.3? If this is a real zero-day exploit.. then yes, there is an issue. The following link may be the best source of information at the moment:

Re: [CentOS] Is there an openssh security problem?

2009-07-07 Thread Rainer Duffner
Am 07.07.2009 um 22:31 schrieb Geoff Galitz: is there a security issue on CentOS 5.3 with openssh 4.3? If this is a real zero-day exploit.. then yes, there is an issue. The following link may be the best source of information at the moment: http://isc.sans.org/diary.html?storyid=6742