Bug#314645: ssh password mappings result

2005-06-21 Thread Greg Webster
probably not line up nearly as well once, for example, > auth.log gets rotated, or I log in from an uncommon machine which > doesn't have RSA access, and I mistype my password. > > > > Justin > > On Mon, Jun 20, 2005 at 10:15:18PM -0700, Greg Webster wrote: > >

Bug#314645: ssh password mappings result

2005-06-20 Thread Greg Webster
Hi Justin, Part of what I'd like to (dis)prove is that they are making a 'second run' from this or another machine to hit that accounts that it believes are valid...any chance you could keep your testing up for a while? Thx, Greg On Mon, 2005-20-06 at 23:15 -0400, Justin Pryzby wrote: > Includ

Bug#314645: /usr/sbin/sshd: time delay of password check proves account existence to attackers

2005-06-20 Thread Greg Webster
:58 -0400, Justin Pryzby wrote: > On Fri, Jun 17, 2005 at 01:13:14PM -0400, pryzbyj wrote: > > On Fri, Jun 17, 2005 at 09:59:45AM -0700, Greg Webster wrote: > > > On Fri, 2005-06-17 at 12:51 -0400, Justin Pryzby wrote: > > > > On Fri, Jun 17, 2005 at 09:14:04AM -0700, G

Bug#314645: /usr/sbin/sshd: time delay of password check proves account existence to attackers

2005-06-17 Thread Greg Webster
On Fri, 2005-06-17 at 13:46 -0400, Justin Pryzby wrote: > On Fri, Jun 17, 2005 at 10:33:49AM -0700, Greg Webster wrote: > > On Fri, 2005-06-17 at 13:13 -0400, Justin Pryzby wrote: > > > > Definitely would be a good test...I'd like to see someone validate what > > &

Bug#314645: /usr/sbin/sshd: time delay of password check proves account existence to attackers

2005-06-17 Thread Greg Webster
the users have a valid shell to access the server via ssh, yet certain accounts get many more attempts (ignoring 'root' entirely, since it'd be a known target). Cheers, Greg -- Greg Webster - System Administrator - intouch.ca gastips.com epredict

Bug#314645: /usr/sbin/sshd: time delay of password check proves account existence to attackers

2005-06-17 Thread Greg Webster
On Fri, 2005-06-17 at 12:51 -0400, Justin Pryzby wrote: > On Fri, Jun 17, 2005 at 09:14:04AM -0700, Greg Webster wrote: > > Package: ssh > > Version: 1:3.8.1p1-8.sarge.4 > > Severity: critical > > File: /usr/sbin/sshd > > Tags: security > > Justification:

Bug#314645: /usr/sbin/sshd: time delay of password check proves account existence to attackers

2005-06-17 Thread Greg Webster
Package: ssh Version: 1:3.8.1p1-8.sarge.4 Severity: critical File: /usr/sbin/sshd Tags: security Justification: root security hole Due to the delay that is caused by password checking, once ssh determines that the login attempt is for a valid account, attackers can statistically prove the existenc