Re: 'Padding Oracle' Crypto Attack Affects Millions of ASP.NET Apps

2010-09-17 Thread silky
On Fri, Sep 17, 2010 at 2:29 PM, silky wrote: [...] > > From there it seems that we can conclude what we thought initially: do > > not send back .net exceptions for cryptography errors (always > > something generic like "invalid username/password combination"). > > > > Also, a general throttling

Re: 'Padding Oracle' Crypto Attack Affects Millions of ASP.NET Apps

2010-09-17 Thread mike smith
On 17 September 2010 17:15, Samuel Lai wrote: > > > Sent from my iPhone > > On 17/09/2010, at 4:28 PM, mike smith wrote: > > On 17 September 2010 14:24, silky < > michaelsli...@gmail.com> wrote: > >> On Tue, Sep 14, 2010 at 10:26 AM, silky < >> michaelsli...@gmail.com> wrote: >> >> [...] >> >>

Re: Password Reset, was Re: 'Padding Oracle' Crypto Attack Affects Millions of ASP.NET Apps

2010-09-17 Thread silky
On Fri, Sep 17, 2010 at 6:04 PM, Ken Schaefer wrote: [...] > > Agreed, I mean I don't want to start a whole thread here or > > miscelaneous security advice, but I do hope people realise that > > the correct pattern is to generate an access token (that only allows > > password reset), send that,

RE: Password Reset, was Re: 'Padding Oracle' Crypto Attack Affects Millions of ASP.NET Apps

2010-09-17 Thread Ken Schaefer
-Original Message- From: ozdotnet-boun...@ozdotnet.com [mailto:ozdotnet-boun...@ozdotnet.com] On Behalf Of silky Subject: Password Reset, was Re: 'Padding Oracle' Crypto Attack Affects Millions of ASP.NET Apps >> Personally, I'll settle for never seeing my current password being >> sent

Password Reset, was Re: 'Padding Oracle' Crypto Attack Affects Millions of ASP.NET Apps

2010-09-17 Thread silky
On Fri, Sep 17, 2010 at 5:15 PM, Samuel Lai wrote: [...] > > And if you have a "forgot password" don't say whether the email address you > > enter succeeds or fails.  So many fail at this step. > > That isn't very practical though. How long should the user be expected to > wait for the password

Re: 'Padding Oracle' Crypto Attack Affects Millions of ASP.NET Apps

2010-09-17 Thread Samuel Lai
Sent from my iPhone On 17/09/2010, at 4:28 PM, mike smith wrote: > On 17 September 2010 14:24, silky wrote: > On Tue, Sep 14, 2010 at 10:26 AM, silky wrote: > > [...] > > >> The cookie might have the hashed result of an SSN. Shouldn't, but might. > > > > I don't think it's hashing that is