On Tue, Jan 11, 2022 at 1:53 PM Adam Williamson
<adamwill(a)fedoraproject.org> wrote:
On Tue, 2022-01-11 at 18:15 +0100, Alexander Sosedkin wrote:
> On Tue, Jan 11, 2022 at 6:04 PM Yaakov Selkowitz <yselkowi(a)redhat.com> wrote:
> >
> > On Tue, 2022-01-11 at 11:58 -0500, Christopher wrote:
> > > Hi,
> > >
> > > Today, I received an email from fas(a)fedoraproject.org with the subject
> > > line "Fedora Account System: please verify your Bugzilla email
> > > address". This email has a unique link to
accounts.fedoraproject.org.
> > >
> > > Based on the context, it seems legitimate. However, I noticed that
> > > clicking the link will take you to a sign-in page asking for
> > > credentials to your account. That seems strange to me, because it
> > > already has a unique link that's associated with the verification of
a
> > > specific email in a specific FAS account, so asking for credentials
> > > should be completely unnecessary here. Asking for credentials makes
> > > this appear to be a phishing attempt, because that's how a phishing
> > > email would behave (appearance of legitimacy, requesting credentials
> > > when not needed).
> > >
> > > I think the FAS developers should remove the requirement to sign-in
> > > for these verification emails, to reduce the appearance/behavior of
> > > phishing. The email itself says these emails are "To improve
> > > security". If that is a goal, then Fedora systems should avoid
> > > training users to supply credentials when not needed.
> >
> > You want anyone who receives or intercepts those emails to be able to access
> > your account *without* logging in?!?
>
> An entity intercepting and reading your email should already be capable
> of anything besides installing your drivers (
https://xkcd.com/1200).
> Is FAS somehow resistant to the "forgot password" button clicking
"attack"?
> How?
A FAS account with 2FA turned on is.
Because FAS asks for password and 2FA, 2FA-enabled accounts would
still be vulnerable to a phishing attack that was modeled after these
legitimate emails, but using a spoofed FAS site.