Zulip's search typeahead had a security bug, where when autocompleting
a specially crafted stream name, and then hitting space, code within
the stream name would be executed.
Zulip was doing HTML escaping correctly in the main code path using
Filter.describe to describe a narrow, but the escaping function was
not called in a few parallel code paths. We fix this in a way that
should protect all of these code paths, by making Filter.describe
return properly escaped HTML, rather than depending on its callers to
do so.
Thanks to w2w for reporting this issue.
This fixes a set of XSS issues with Zulip's frontend markdown
processor, which is used in a limited set of contexts, such as local
echo of messages and the drafts feature.
The implementation of several syntax elements, including the <em>
syntax, user and stream mentions, and some others failed to properly
escape the content inside the syntax.
Fix this, and add tests for each corrected code path.
Thanks to w2w for reporting this issue.
This fixes an XSS issue with Zulip's muting UI, where if a stream or
topic name contained malicious HTML containing JavaScript, and the
user did a muting interaction, the malicious JavaScript could run when
rendering the "you just muted a topic" notification.
We did an audit for similarly problematic use of `.html`, and found
none; for the next release we'll be merging a series of changes to our
linter to prevent future instances of this being added.
Thanks to Suhas Sunil Gaikwad for reporting this issue.
This completes the last commit's work to fix CVE-2017-0910, applying
to any invite links already created before the fix was deployed. With
this change, all new-user registrations must match an explicit realm
in the PreregistrationUser row, except when creating a new realm.
[greg: rewrote commit message]
We would allow a user with a valid invitation for one realm to use it
on a different realm instead. On a server with multiple realms, an
authorized user of one realm could use this (by sending invites to
other email addresses they control) to create accounts on other
realms. (CVE-2017-0910)
With this commit, when sending an invitation, we record the inviting
user's realm on the PreregistrationUser row; and when registering a
user, we check that the PregistrationUser realm matches the realm the
user is trying to register on. This resolves CVE-2017-0910 for
newly-sent invitations; the next commit completes the fix.
[greg: rewrote commit message]
Apparently this is a bug that slipped in when we started showing
normal users as deactivated in the user popovers: all bot users were
treated that way as well.
We'll want to do #7153 as a follow-up to get things fully working how
we want them.
While it's totally fine to put a leading '.' before the cookie domain
for normal hostnames and browsers will just strip them, if you're
using an IP address, it doesn't work, because .127.0.0.1 (for example)
is just invalid, and the cookie won't be set.
This fixes an issue where after installing with an IP address, realm
creation would end with being stuck at a blank page for
/accounts/login/subdomain/.
If an organization doesn't have the EmailAuthBackend (which allows
password auth) enabled, then our password reset form doesn't do
anything, so we should hide it in the UI.
We're going to end up deleting most of this in the next few commits;
the main goal here is to make it easy to code-review whether we're
breaking anything in replacing the built-in Django form's logic.
While our recent changing to hide /register means we don't need a nice
pretty error message here, eventually we'll want to clean up the error
message.
Fixes#7047.
This new function extractions the bit of logic we use after creating a
new user account to log them in and send them to the home page,
without emailing the user about their new login.
This should help prevent confusion where new users find themselves on
the LDAP login form and click "register" because they know they don't
have an account. Whereas in fact, their account will be auto-created
if they just login, so there's no need for them to access it.
This fixes a problem we've seen where LDAP users were not getting this
part of the onboarding process, and a similar problem for human users
created via the API.
Ideally, we would have put these fixes in process_new_human_user, but
that would cause import loop problems.
Now we use 'git ls-files' to get the list of locales that we actually
track. Previously we were using os.listdir to get the contents of the
static/locale directory. This could also return locales which were
present in the directory but are not supported by us, e.g. zh_CN.
Previously, if you had the streams overlay open (but no active stream
clicked) while another user edited your subscriptions state, we'd
throw an exception handle the get_events call, because the code for
rerendering the subscribers list didn't consider the possibility that
there was no active stream.
The recent fixes we made to make stream settings update properly when
doing live updates were great, but they would throw an exception if
the stream settings overlay wasn't open. This fixes that by adding
the appropriate check.
We do not want the code to lead to a path where it will attempt to
display native notifications if the “Notification” object doesn’t
exist, as this likely means that the device does not support OS
notifications.
