Just going to point out, no one said that any layer 7 attack is trivially defended, just this very specific one.
On Thu, Jul 18, 2013 at 9:51 AM, Hugh Davenport <[email protected]>wrote: > Any level 7 attack can be solved trivially? How do you propose > automatically > responding to XSS, XSRF, SQLi, RemoteEx, etc etc, all of which go over > level > 7, which by your opinion you can solve easily. > > It isn't the matter that you can solve this "issue" with fail2ban, it is > more > that the issue exists and has gone several months without being fixed. If I > use a project that I must rely on a third party tool /foobar/ *just* to get > the project in a secure stable state, then that project is not doing it > right. > > Silverstripe should be able to withhold trivial attacks like this *on it's > own > two feet*, and not rely on tools like fail2ban. > > IMHO, you have a terrible stance on how to deal with security issues. Chris > here tried to go through the proper channels to report the bug to the > developers > which didn't seem to show the point, hence this blog post. > > Cheers, > > Hugh > > > On 2013-07-17 21:26, Ivan Kurnosov wrote: > >> 2. In government just a regular people work, not gods. They have their >> own preferences :-) >> >> 3. As I said - it's reeeeeeeeeeeeeeeally trivial >> >> The thing is - even if there was no such "vulnerability" - you still >> would be able to "DOS" silverstripe-based site with a bunch of >> requests just because the cost of generating a request is dramatically >> higher than the cost of a generating responses. >> >> So the "issue" is overrated. For someone who can google and is not a >> total dumb - any level7 attack issues can be solved easily. >> >> On 17 July 2013 21:20, Petah <[email protected]> wrote: >> >> There are a few questions to raise here: >>> >>> 1. Why can a member of the public flush the cache? >>> >>> 2. Why has the NZ government chosen Silver Stripe over something >>> like Drupal, or other alternatives? >>> >>> 3. Does the government service providers have the knowhow and >>> capabilities to detect and prevent such attacks? >>> >>> 4. If someone did manage to use this, or something similar, what >>> websites would it effect and how would the public be affected? >>> >>> >>> >>> On Wed, Jul 17, 2013 at 9:07 PM, Ivan Kurnosov <[email protected]> >>> wrote: >>> >>> It's actually pretty obvious that non-cached page takes longer to >>> generate (while I agree it's weird they provide a switch to flush >>> the cache) :-) Anyway, it's well known that the most resources >>> consuming part of almost every project is captcha generating >>> endpoint. >>> >>> On 17 July 2013 21:04, Christopher Tombleson <[email protected]> >>> wrote: >>> >>> True. But it a silly code error should have never been there in the >>> first place. >>> >>> On Wed, Jul 17, 2013 at 8:59 PM, Ivan Kurnosov <[email protected]> >>> wrote: >>> It's a pretty script-kiddy attack that can be defended in minutes >>> using dummy fail2ban, after rule is applied your traffic would >>> produce literally no noticeable influence on the project >>> >>> On Wednesday, July 17, 2013 6:16:40 PM UTC+12, chtombleson wrote:Hi, >>> >>> I have recently noticed a DOS vulnerability in Silverstripe 3, >>> I did some testing and it turned out I was right, >>> you can find my results here: >>> http://blog.cribznetwork.com/**2013/07/silverstripe-3-dos-**vulnerable/<http://blog.cribznetwork.com/2013/07/silverstripe-3-dos-vulnerable/> >>> [1] >>> >>> >>> Cheers, >>> Christopher Tombleson >>> >>> -- >>> -- >>> NZ PHP Users Group: >>> http://groups.google.com/**group/nzphpug<http://groups.google.com/group/nzphpug>[2] >>> >>> To post, send email to [email protected] >>> To unsubscribe, send email to >>> nzphpug+unsubscribe@**googlegroups.com<nzphpug%[email protected]> >>> --- >>> You received this message because you are subscribed to the Google >>> Groups "NZ PHP Users Group" group. >>> To unsubscribe from this group and stop receiving emails from it, >>> send an email to >>> nzphpug+unsubscribe@**googlegroups.com<nzphpug%[email protected]> >>> . >>> For more options, visit >>> https://groups.google.com/**groups/opt_out<https://groups.google.com/groups/opt_out> >>> [3]. >>> >>> >>> >> >> -- >> Christopher Tombleson. >> http://cribznetwork.com [4] >> >> -- >> -- >> NZ PHP Users Group: >> http://groups.google.com/**group/nzphpug<http://groups.google.com/group/nzphpug>[2] >> >> To post, send email to [email protected] >> To unsubscribe, send email to >> >> nzphpug+unsubscribe@**googlegroups.com<nzphpug%[email protected]> >> --- >> You received this message because you are subscribed to the Google >> Groups "NZ PHP Users Group" group. >> To unsubscribe from this group and stop receiving emails from it, >> send an email to >> nzphpug+unsubscribe@**googlegroups.com<nzphpug%[email protected]> >> . >> For more options, visit >> https://groups.google.com/**groups/opt_out<https://groups.google.com/groups/opt_out>[3]. >> >> >> >> >> -- >> With best regards, Ivan Kurnosov >> >> -- >> -- >> NZ PHP Users Group: >> http://groups.google.com/**group/nzphpug<http://groups.google.com/group/nzphpug>[2] >> >> To post, send email to [email protected] >> To unsubscribe, send email to >> >> nzphpug+unsubscribe@**googlegroups.com<nzphpug%[email protected]> >> --- >> You received this message because you are subscribed to the Google >> Groups "NZ PHP Users Group" group. >> To unsubscribe from this group and stop receiving emails from it, >> send an email to >> nzphpug+unsubscribe@**googlegroups.com<nzphpug%[email protected]> >> . >> For more options, visit >> https://groups.google.com/**groups/opt_out<https://groups.google.com/groups/opt_out>[3]. >> >> >> >> -- >> -- >> NZ PHP Users Group: >> http://groups.google.com/**group/nzphpug<http://groups.google.com/group/nzphpug>[2] >> >> To post, send email to [email protected] >> To unsubscribe, send email to >> >> nzphpug+unsubscribe@**googlegroups.com<nzphpug%[email protected]> >> --- >> You received this message because you are subscribed to the Google >> Groups "NZ PHP Users Group" group. >> To unsubscribe from this group and stop receiving emails from it, >> send an email to >> nzphpug+unsubscribe@**googlegroups.com<nzphpug%[email protected]> >> . >> For more options, visit >> https://groups.google.com/**groups/opt_out<https://groups.google.com/groups/opt_out>[3]. >> >> >> >> >> -- >> With best regards, Ivan Kurnosov >> >> -- >> -- >> NZ PHP Users Group: >> http://groups.google.com/**group/nzphpug<http://groups.google.com/group/nzphpug>[2] >> >> To post, send email to [email protected] >> To unsubscribe, send email to >> >> nzphpug+unsubscribe@**googlegroups.com<nzphpug%[email protected]> >> --- >> You received this message because you are subscribed to the Google >> Groups "NZ PHP Users Group" group. >> To unsubscribe from this group and stop receiving emails from it, >> send an email to >> nzphpug+unsubscribe@**googlegroups.com<nzphpug%[email protected]> >> . >> For more options, visit >> https://groups.google.com/**groups/opt_out<https://groups.google.com/groups/opt_out>[3]. >> >> >> >> Links: >> ------ >> [1] http://blog.cribznetwork.com/**2013/07/silverstripe-3-dos-** >> vulnerable/<http://blog.cribznetwork.com/2013/07/silverstripe-3-dos-vulnerable/> >> [2] >> http://groups.google.com/**group/nzphpug<http://groups.google.com/group/nzphpug> >> [3] >> https://groups.google.com/**groups/opt_out<https://groups.google.com/groups/opt_out> >> [4] http://cribznetwork.com >> > > -- > -- > NZ PHP Users Group: > http://groups.google.com/**group/nzphpug<http://groups.google.com/group/nzphpug> > To post, send email to [email protected] > To unsubscribe, send email to > nzphpug+unsubscribe@**googlegroups.com<nzphpug%[email protected]> > --- You received this message because you are subscribed to the Google > Groups "NZ PHP Users Group" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to > nzphpug+unsubscribe@**googlegroups.com<nzphpug%[email protected]> > . > For more options, visit > https://groups.google.com/**groups/opt_out<https://groups.google.com/groups/opt_out> > . > > > -- -- NZ PHP Users Group: http://groups.google.com/group/nzphpug To post, send email to [email protected] To unsubscribe, send email to [email protected] --- You received this message because you are subscribed to the Google Groups "NZ PHP Users Group" group. 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