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Author SHA1 Message Date
epriestley
1d0b99e1f8 Allow applications to require a High Security token without doing a session upgrade
Summary:
Ref T13222. See PHI873. Currently, when applications prompt users to enter MFA, their session upgrades as a side effect.

In some cases (like managing your email addresses) it makes sense to upgrade your session for a little while since it's common to make multiple edits in sequence (add a new address, make it primary, remove an old address). We generally want MFA to stay out of the way and not feel annoying.

In other cases, we don't expect multiple high-security actions in a row. Notably, PHI873 looks at more "one-shot" use cases where a prompt is answering a specific workflow. We already have at least one of these in the upstream: answering an MFA prompt when signing a Legalpad document.

Introduce a "token" workflow (in contrast to the existing "session") workflow that just does a one-shot prompt without upgrading your session statefully. Then, make Legalpad use this new workflow.

Note that this workflow has a significant problem: if the form submission is invalid for some other reason, we re-prompt you on resubmit. In Legalpad, this workflow looks like:

  - Forget to check the "I agree" checkbox.
  - Submit the form.
  - Get prompted for MFA.
  - Answer MFA prompt.
  - Get dumped back to the form with an error.
  - When you fix the error and submit again, you have to do another MFA check.

This isn't a fatal flaw in Legalpad, but would become a problem with wider adoption. I'll work on fixing this (so the MFA token sticks to the form) in the next set of changes.

Roughly, this is headed toward "MFA sticks to the form/workflow" instead of "MFA sticks to the user/session".

Test Plan:
  - Signed a legalpad document with MFA enabled.
  - Was prompted for MFA.
  - Session no longer upgraded (no purple "session in high security" badge).
  - Submitted form with error, answered MFA, fixed error, submitted form again.
    - Bad behavior: got re-prompted for MFA. In the future, MFA should stick to the form.

Reviewers: amckinley

Reviewed By: amckinley

Maniphest Tasks: T13222

Differential Revision: https://secure.phabricator.com/D19843
2018-11-28 13:39:59 -08:00
epriestley
49483bdb48 Use "%P" to protect session key hashes in SessionEngine queries from DarkConsole
Summary:
Ref T6960. Ref T13217. Ref T13216. Depends on D19811. Use the recently-introduced "%P" conversion ("Password/Secret") to load sessions in SessionEngine.

This secret isn't critical to protect (it's the //hash// of the actual secret and not useful to attackers on its own) but it shows up on every page in DarkConsole and is an obvious case where `%P` is a more appropriate conversion.

Test Plan:
Note "*********" in the middle of the output here, instead of a session key hash:

{F6012805}

Reviewers: amckinley

Reviewed By: amckinley

Maniphest Tasks: T13217, T13216, T6960

Differential Revision: https://secure.phabricator.com/D19812
2018-11-16 12:36:35 -08:00
epriestley
2f10d4adeb Continue making application fixes to Phabricator for changes to %Q semantics
Summary: Depends on D19789. Ref T13217. Continue updating things to use the new %Q-flavored conversions instead of smushing a bunch of strings together.

Test Plan: Browsed around, far fewer errors. These changes are largely mechanical in nature.

Reviewers: amckinley

Reviewed By: amckinley

Maniphest Tasks: T13217

Differential Revision: https://secure.phabricator.com/D19790
2018-11-15 03:50:02 -08:00
epriestley
1f6a4cfffe Prevent users from selecting excessively bad passwords based on their username or email address
Summary:
Ref T13216. We occasionally receive HackerOne reports concerned that you can select your username as a password. I suspect very few users actually do this and that this is mostly a compliance/checklist sort of issue, not a real security issue.

On this install, we have about 41,000 user accounts. Of these, 100 have their username as a password (account or VCS). A substantial subset of these are either explicitly intentional ("demo", "bugmenot") or obvious test accounts ("test" in name, or name is a nonsensical string of gibberish, or looks like "tryphab" or similar) or just a bunch of numbers (?), or clearly a "researcher" doing this on purpose (e.g., name includes "pentest" or "xss" or similar).

So I'm not sure real users are actually very inclined to do this, and we can't really ever stop them from picking awful passwords anyway. But we //can// stop researchers from reporting that this is an issue.

Don't allow users to select passwords which contain words in a blocklist: their username, real name, email addresses, or the install's domain name. These words also aren't allowed to contain the password (that is, neither your password nor your username may be a substring of the other one). We also do a little normalization to try to split apart email addresses, domains, and real names, so I can't have "evan1234" as my password.

Test Plan:
  - Added unit tests and made them pass.
  - Tried to set my password to a bunch of variations of my username / email / domain name / real name / etc, got rejected.

Reviewers: amckinley

Reviewed By: amckinley

Maniphest Tasks: T13216

Differential Revision: https://secure.phabricator.com/D19776
2018-11-06 12:44:07 -08:00
epriestley
f5e90a363e When a user takes actions while in a high security session, note it on the resulting transactions
Summary:
Ref T13197. See PHI873. Record when a user has MFA'd and add a little icon to the transaction, similar to the exiting "Silent" icon.

For now, this just makes this stuff more auditable. Future changes may add ways to require MFA for certain specific transactions, outside of the ones that already always require MFA (like revealing credentials).

Test Plan: {F5877960}

Reviewers: amckinley

Reviewed By: amckinley

Maniphest Tasks: T13197

Differential Revision: https://secure.phabricator.com/D19665
2018-09-12 12:57:02 -07:00
epriestley
653bc0fa01 Read lock all transaction edits
Summary: Ref T13054. Fixes T12714. Applies read locks to all transactions instead of only a very select subset (chat messages in Conpherence).

Test Plan: See <T13054#235650> for discussion and testing.

Maniphest Tasks: T13054, T12714

Differential Revision: https://secure.phabricator.com/D19059
2018-02-10 20:07:46 -08:00
epriestley
bf2868c070 Rename "PhabricatorPasswordHashInterface" to "PhabricatorAuthPasswordHashInterface"
Summary: Depends on D18911. Ref T13043. Improves consistency with other "PhabricatorAuthPassword..." classes.

Test Plan: Unit tests, `grep`.

Reviewers: amckinley

Reviewed By: amckinley

Maniphest Tasks: T13043

Differential Revision: https://secure.phabricator.com/D18916
2018-01-23 14:06:05 -08:00
epriestley
abc030fa00 Move account passwords to shared infrastructure
Summary:
Ref T13043. This moves user account passwords to the new shared infrastructure.

There's a lot of code changes here, but essentially all of it is the same as the VCS password logic in D18898.

Test Plan:
- Ran migration.
- Spot checked table for general sanity.
- Logged in with an existing password.
- Hit all error conditions on "change password", "set password", "register new account" flows.
- Verified that changing password logs out other sessions.
- Verified that revoked passwords of a different type can't be selected.
- Changed passwords a bunch.
- Verified that salt regenerates properly after password change.
- Tried to login with the wrong password, which didn't work.

Reviewers: amckinley

Reviewed By: amckinley

Maniphest Tasks: T13043

Differential Revision: https://secure.phabricator.com/D18903
2018-01-23 13:43:07 -08:00
epriestley
b8a515cb29 Bring new password validation into AuthPasswordEngine
Summary:
Ref T13043. We have ~4 copies of this logic (registration, lost password recovery, set password, set VCS password).

Currently it varies a bit from case to case, but since it's all going to be basically identical once account passwords swap to the new infrastructure, bring it into the Engine so it can live in one place.

This also fixes VCS passwords not being affected by `account.minimum-password-length`.

Test Plan: Hit all errors in "VCS Password" panel. Successfully changed password.

Reviewers: amckinley

Reviewed By: amckinley

Maniphest Tasks: T13043

Differential Revision: https://secure.phabricator.com/D18902
2018-01-23 10:58:37 -08:00
epriestley
5a8a56f414 Prepare the new AuthPassword infrastructure for storing account passwords
Summary:
Ref T13043. In D18898 I moved VCS passwords to the new shared infrastructure.

Before account passwords can move, we need to make two changes:

  - For legacy reasons, VCS passwords and Account passwords have different "digest" algorithms. Both are more complicated than they should be, but we can't easily fix it without breaking existing passwords. Add a `PasswordHashInterface` so that objects which can have passwords hashes can implement custom digest logic for each password type.
  - Account passwords have a dedicated external salt (`PhabricatorUser->passwordSalt`). This is a generally reasonable thing to support (since not all hashers are self-salting) and we need to keep it around so existing passwords still work. Add salt support to `AuthPassword` and make it generate/regenerate when passwords are updated.

Then add a nice story about password digestion.

Test Plan: Ran migrations. Used an existing VCS password; changed VCS password. Tried to use a revoked password. Unit tests still pass. Grepped for callers to legacy `PhabricatorHash::digestPassword()`, found none.

Reviewers: amckinley

Reviewed By: amckinley

Maniphest Tasks: T13043

Differential Revision: https://secure.phabricator.com/D18900
2018-01-23 10:57:40 -08:00
epriestley
bb12f4bab7 Add test coverage to the PasswordEngine upgrade workflow and fix a few bugs
Summary:
Ref T13043. When we verify a password and a better hasher is available, we automatically upgrade the stored hash to the stronger hasher.

Add test coverage for this workflow and fix a few bugs and issues, mostly related to shuffling the old hasher name into the transaction.

This doesn't touch anything user-visible yet.

Test Plan: Ran unit tests.

Reviewers: amckinley

Reviewed By: amckinley

Maniphest Tasks: T13043

Differential Revision: https://secure.phabricator.com/D18897
2018-01-23 10:55:35 -08:00
epriestley
c280c85772 Consolidate password verification/revocation logic in a new PhabricatorAuthPasswordEngine
Summary:
Ref T13043. This provides a new piece of shared infrastructure that VCS passwords and account passwords can use to validate passwords that users enter.

This isn't reachable by anything yet.

The test coverage of the "upgrade" flow (where we rehash a password to use a stronger hasher) isn't great in this diff, I'll expand that in the next change and then start migrating things.

Test Plan: Added a bunch of unit tests.

Reviewers: amckinley

Reviewed By: amckinley

Maniphest Tasks: T13043

Differential Revision: https://secure.phabricator.com/D18896
2018-01-23 10:54:49 -08:00
epriestley
3d816e94df Rename "PhabricatorHash::digest()" to "weakDigest()"
Summary: Ref T12509. This encourages code to move away from HMAC+SHA1 by making the method name more obviously undesirable.

Test Plan: `grep`, browsed around.

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T12509

Differential Revision: https://secure.phabricator.com/D17632
2017-04-06 15:43:33 -07:00
epriestley
2befd239a8 Add session and request hooks to PhabricatorAuthSessionEngine
Summary: This supports doing a bunch of sales funnel tracking on Phacility.

Test Plan: See next diff.

Reviewers: chad

Reviewed By: chad

Differential Revision: https://secure.phabricator.com/D16890
2016-11-17 13:09:29 -08:00
Chad Little
60d1762a85 Redesign Config Application
Summary: Ref T11132, significantly cleans up the Config app, new layout, icons, spacing, etc. Some minor todos around re-designing "issues", mobile support, and maybe another pass at actual Group pages.

Test Plan: Visit and test every page in the config app, set new items, resolve setup issues, etc.

Reviewers: epriestley

Reviewed By: epriestley

Subscribers: PHID-OPKG-gm6ozazyms6q6i22gyam, Korvin

Maniphest Tasks: T11132

Differential Revision: https://secure.phabricator.com/D16468
2016-08-29 15:49:49 -07:00
Chad Little
15ed2b936c Update Config Application UI
Summary: Switches over to new property UI boxes, splits core and apps into separate pages. Move Versions into "All Settings". I think there is some docs I likely need to update here as well.

Test Plan: Click on each item in the sidebar, see new headers.

Reviewers: epriestley

Reviewed By: epriestley

Subscribers: Korvin

Differential Revision: https://secure.phabricator.com/D16429
2016-08-22 10:40:24 -07:00
epriestley
814fa135b0 Centralize "this is the current user for the request" code
Summary:
Ref T11098. This primarily fixes Conduit calls to `*.edit` methods failing when trying to access user preferences.

(The actual access is a little weird, since it seems like we're building some UI stuff inside a policy query, but that's an issue for another time.)

To fix this, consolidate the "we're about to run some kind of request with this user" code and run it consistently for web, conduit, and SSH sessions.

Additionally, make sure we swap things to the user's translation.

Test Plan:
  - Ran `maniphest.edit` via `arc call-conduit`, no more settings exception.
  - Set translation to ALL CAPS, got all caps output from `ssh` and Conduit.

Reviewers: avivey, chad

Reviewed By: chad

Maniphest Tasks: T11098

Differential Revision: https://secure.phabricator.com/D16066
2016-06-07 07:43:50 -07:00
epriestley
6f1053c206 Convert user profile images into a standard cache
Summary:
Ref T4103. Ref T10078. This moves profile image caches to new usercache infrastructure.

These dirty automatically based on configuration and User properties, so add some stuff to make that happen.

This reduces the number of queries issued on every page by 1.

Test Plan: Browsed around, changed profile image, viewed as self, viewed as another user, verified no more query to pull this information on every page

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T4103, T10078

Differential Revision: https://secure.phabricator.com/D16040
2016-06-05 08:52:15 -07:00
epriestley
2b344b2bb5 Make caches misses throw by default intead of inline-generating
Summary:
Ref T4103. Ref T10078. Currently, when a user misses a cache we just build it for them.

This is the behavior we want for the the viewer (so we don't have to build every cache up front if we don't actually need them), but not the right behavior for other users (since it allows performance problems to go undetected).

Make inline cache generation strict by default, then make sure all the things that rely on cache data request the correct data (well, all of the things identified by unit tests, at least: there might be some more stuff I haven't hit yet).

This fixes test failures in D16040, and backports a piece of that change.

Test Plan: Identified and then fixed failures with `arc unit --everything`.

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T4103, T10078

Differential Revision: https://secure.phabricator.com/D16042
2016-06-05 08:51:54 -07:00
epriestley
9180f429eb Provide a general-purpose, modular user cache for settings and other similar data
Summary:
Ref T4103. Currently, we issue a `SELECT * FROM user_preferences ... WHERE userPHID = ...` on every page to load the viewer's settings.

There are several other questionable data accesses on every page too, most of which could benefit from improved caching strategies (see T4103#178122).

This query will soon get more expensive, since it may need to load several objects (e.g., the user's settings and their "role profile" settings). Although we could put that data on the User and do both in one query, it's nicer to put it on the Preferences object ("This inherits from profile X") which means we need to do several queries.

Rather than paying a greater price, we can cheat this stuff into the existing query where we load the user's session by providing a user cache table and doing some JOIN magic. This lets us issue one query and try to get cache hits on a bunch of caches cheaply (well, we'll be in trouble at the MySQL JOIN limit of 61 tables, but have some headroom).

For now, just get it working:

  - Add the table.
  - Try to get user settings "for free" when we load the session.
  - If we miss, fill user settings into the cache on-demand.
  - We only use this in one place (DarkConsole) for now. I'll use it more widely in the next diff.

Test Plan:
  - Loaded page as logged-in user.
  - Loaded page as logged-out user.
  - Examined session query to see cache joins.
  - Changed settings, saw database cache fill.
  - Toggled DarkConsole on and off.

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T4103

Differential Revision: https://secure.phabricator.com/D16001
2016-06-02 06:28:56 -07:00
epriestley
46881c4ce5 Add a session engine extension point
Summary: Ref T7673. This is really just so I can force admin.phacility.com logout when you log out of an instance, but there are a few other things we could move here eventually, like the WILLREGISTERUSER event.

Test Plan: Logged out of an instance, got logged out of parent (see next change).

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T7673

Differential Revision: https://secure.phabricator.com/D15629
2016-04-05 15:19:47 -07:00
epriestley
a837c3d73e Make temporary token storage/schema more flexible
Summary:
Ref T10603. This makes minor updates to temporary tokens:

  - Rename `objectPHID` (which is sometimes used to store some other kind of identifier instead of a PHID) to `tokenResource` (i.e., which resource does this token permit access to?).
  - Add a `userPHID` column. For LFS tokens and some other types of tokens, I want to bind the token to both a resource (like a repository) and a user.
  - Add a `properties` column. This makes tokens more flexible and supports custom behavior (like scoping LFS tokens even more tightly).

Test Plan:
- Ran `bin/storage upgrade -f`, got a clean upgrade.
- Viewed one-time tokens.
- Revoked one token.
- Revoked all tokens.
- Performed a one-time login.
- Performed a password reset.
- Added an MFA token.
- Removed an MFA token.
- Used a file token to view a file.
- Verified file token was removed after viewing file.
- Linked my account to an OAuth1 account (Twitter).

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T10603

Differential Revision: https://secure.phabricator.com/D15478
2016-03-16 09:33:38 -07:00
epriestley
8e3ea4e034 Use new modular temporary auth token constants in one-time login and password reset flows
Summary:
Ref T10603. This converts existing hard-codes to modular constants.

Also removes one small piece of code duplication.

Test Plan:
  - Performed one-time logins.
  - Performed a password reset.
  - Verified temporary tokens were revoked properly.

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T10603

Differential Revision: https://secure.phabricator.com/D15476
2016-03-16 09:33:24 -07:00
epriestley
29948eaa5b Use phutil_hashes_are_identical() when comparing hashes in Phabricator
Summary: See D14025. In all cases where we compare hashes, use strict, constant-time comparisons.

Test Plan: Logged in, logged out, added TOTP, ran Conduit, terminated sessions, submitted forms, changed password. Tweaked CSRF token, got rejected.

Reviewers: chad

Reviewed By: chad

Subscribers: chenxiruanhai

Differential Revision: https://secure.phabricator.com/D14026
2015-09-01 15:52:44 -07:00
Joshua Spence
4761cb8d73 Use PhutilInvalidStateException
Summary: Use `PhutilInvalidStateException` where appropriate.

Test Plan: Eyeball it.

Reviewers: epriestley, #blessed_reviewers

Reviewed By: epriestley, #blessed_reviewers

Subscribers: epriestley, Korvin

Differential Revision: https://secure.phabricator.com/D13327
2015-06-18 07:09:02 +10:00
epriestley
992c199577 Add "Mailing List" users
Summary:
Ref T8387. Adds new mailing list users.

This doesn't migrate anything yet. I also need to update the "Email Addresses" panel to let administrators change the list address.

Test Plan:
  - Created and edited a mailing list user.
  - Viewed profile.
  - Viewed People list.
  - Searched for lists / nonlists.
  - Grepped for all uses of `getIsDisabled()` / `getIsSystemAgent()` and added relevant corresponding behaviors.
  - Hit the web/api/ssh session blocks.

Reviewers: btrahan

Reviewed By: btrahan

Subscribers: eadler, tycho.tatitscheff, epriestley

Maniphest Tasks: T8387

Differential Revision: https://secure.phabricator.com/D13123
2015-06-03 18:42:33 -07:00
Bob Trahan
d39da529ca Legalpad - allow for legalpad documents to be required to be signed for using Phabricator
Summary: Fixes T7159.

Test Plan:
Created a legalpad document that needed a signature and I was required to sign it no matter what page I hit. Signed it and things worked! Added a new legalpad document and I had to sign again!

Ran unit tests and they passed!

Logged out as a user who was roadblocked into signing a bunch of stuff and it worked!

Reviewers: epriestley

Reviewed By: epriestley

Subscribers: Korvin, epriestley

Maniphest Tasks: T7159

Differential Revision: https://secure.phabricator.com/D11759
2015-02-12 15:22:56 -08:00
epriestley
7797443428 Support invites in the registration and login flow
Summary:
Ref T7152. This substantially completes the upstream login flow. Basically, we just cookie you and push you through normal registration, with slight changes:

  - All providers allow registration if you have an invite.
  - Most providers get minor text changes to say "Register" instead of "Login" or "Login or Register".
  - The Username/Password provider changes to just a "choose a username" form.
  - We show the user that they're accepting an invite, and who invited them.

Then on actual registration:

  - Accepting an invite auto-verifies the address.
  - Accepting an invite auto-approves the account.
  - Your email is set to the invite email and locked.
  - Invites get to reassign nonprimary, unverified addresses from other accounts.

But 98% of the code is the same.

Test Plan:
  - Accepted an invite.
  - Verified a new address on an existing account via invite.
  - Followed a bad invite link.
  - Tried to accept a verified invite.
  - Reassigned an email by accepting an unverified, nonprimary invite on a new account.
  - Verified that reassigns appear in the activity log.

{F291493}
{F291494}
{F291495}
{F291496}
{F291497}
{F291498}
{F291499}

Reviewers: btrahan

Reviewed By: btrahan

Subscribers: epriestley

Maniphest Tasks: T7152

Differential Revision: https://secure.phabricator.com/D11737
2015-02-11 06:06:28 -08:00
epriestley
6f90fbdef8 Send emails for email invites
Summary:
Ref T7152. Ref T3554.

  - When an administrator clicks "send invites", queue tasks to send the invites.
  - Then, actually send the invites.
  - Make the links in the invites work properly.
  - Also provide `bin/worker execute` to make debugging one-off workers like this easier.
  - Clean up some UI, too.

Test Plan:
We now get as far as the exception which is a placeholder for a registration workflow.

{F291213}

{F291214}

{F291215}

Reviewers: btrahan

Reviewed By: btrahan

Subscribers: epriestley

Maniphest Tasks: T3554, T7152

Differential Revision: https://secure.phabricator.com/D11736
2015-02-11 06:06:09 -08:00
epriestley
2a0af8e299 Add email invites to Phabricator (logic only)
Summary:
Ref T7152. This builds the core of email invites and implements all the hard logic for them, covering it with a pile of tests.

There's no UI to create these yet, so users can't actually get invites (and administrators can't send them).

This stuff is a complicated mess because there are so many interactions between accounts, email addresses, email verification, email primary-ness, and user verification. However, I think I got it right and got test coverage everwhere.

The degree to which this is exception-driven is a little icky, but I think it's a reasonable way to get the testability we want while still making it hard for callers to get the flow wrong. In particular, I expect there to be at least two callers (one invite flow in the upstream, and one derived invite flow in Instances) so I believe there is merit in burying as much of this logic inside the Engine as is reasonably possible.

Test Plan: Unit tests only.

Reviewers: btrahan

Reviewed By: btrahan

Subscribers: epriestley

Maniphest Tasks: T7152

Differential Revision: https://secure.phabricator.com/D11723
2015-02-09 16:12:36 -08:00
epriestley
42cf7f6faa Make the current session key a component of the CSRF token
Summary: Fixes T5510. This purely reduces false positives from HackerOne: we currently rotate CSRF tokens, but do not bind them explicitly to specific sessions. Doing so has no real security benefit and may make some session rotation changes more difficult down the line, but researchers routinely report it. Just conform to expectations since the expected behavior isn't bad and this is less work for us than dealing with false positives.

Test Plan:
  - With two browsers logged in under the same user, verified I was issued different CSRF tokens.
  - Verified the token from one browser did not work in the other browser's session.

Reviewers: btrahan

Reviewed By: btrahan

Subscribers: epriestley

Maniphest Tasks: T5510

Differential Revision: https://secure.phabricator.com/D10136
2014-08-04 12:04:47 -07:00
epriestley
95eeffff7e Terminate other sessions on credential changes
Summary:
Fixes T5509. Currently, existing sessions live on even if you change your password.

Over the course of the program, we've recieved a lot of HackerOne reports that sessions do not terminate when users change their passwords. I hold that this isn't a security vulnerability: users can explicitly manage sessions, and this is more general and more powerful than tying session termination to password resets. In particular, many installs do not use a password provider at all (and no researcher has reported this in a general, application-aware way that discusses multiple authentication providers).

That said, dealing with these false positives is vaguely time consuming, and the "expected" behavior isn't bad for users, so just align behavior with researcher expectations: when passwords are changed, providers are removed, or multi-factor authentication is added to an account, terminate all other active login sessions.

Test Plan:
  - Using two browsers, established multiple login sessions.
  - In one browser, changed account password. Saw session terminate and logout in the second browser.
  - In one browser, removed an authentication provider. Saw session terminate and logout in the second browser.
  - In one browser, added MFA. Saw session terminate and logout in the second browser.

Reviewers: btrahan

Reviewed By: btrahan

Subscribers: epriestley

Maniphest Tasks: T5509

Differential Revision: https://secure.phabricator.com/D10135
2014-08-04 12:04:35 -07:00
epriestley
f1534e6feb Make password reset emails use one-time tokens
Summary:
Ref T4398. This code hadn't been touched in a while and had a few crufty bits.

**One Time Resets**: Currently, password reset (and similar links) are valid for about 48 hours, but we always use one token to generate them (it's bound to the account). This isn't horrible, but it could be better, and it produces a lot of false positives on HackerOne.

Instead, use TemporaryTokens to make each link one-time only and good for no more than 24 hours.

**Coupling of Email Verification and One-Time Login**: Currently, one-time login links ("password reset links") are tightly bound to an email address, and using a link verifies that email address.

This is convenient for "Welcome" emails, so the user doesn't need to go through two rounds of checking email in order to login, then very their email, then actually get access to Phabricator.

However, for other types of these links (like those generated by `bin/auth recover`) there's no need to do any email verification.

Instead, make the email verification part optional, and use it on welcome links but not other types of links.

**Message Customization**: These links can come out of several workflows: welcome, password reset, username change, or `bin/auth recover`. Add a hint to the URI so the text on the page can be customized a bit to help users through the workflow.

**Reset Emails Going to Main Account Email**: Previously, we would send password reset email to the user's primary account email. However, since we verify email coming from reset links this isn't correct and could allow a user to verify an email without actually controlling it.

Since the user needs a real account in the first place this does not seem useful on its own, but might be a component in some other attack. The user might also no longer have access to their primary account, in which case this wouldn't be wrong, but would not be very useful.

Mitigate this in two ways:

  - First, send to the actual email address the user entered, not the primary account email address.
  - Second, don't let these links verify emails: they're just login links. This primarily makes it more difficult for an attacker to add someone else's email to their account, send them a reset link, get them to login and implicitly verify the email by not reading very carefully, and then figure out something interesting to do (there's currently no followup attack here, but allowing this does seem undesirable).

**Password Reset Without Old Password**: After a user logs in via email, we send them to the password settings panel (if passwords are enabled) with a code that lets them set a new password without knowing the old one.

Previously, this code was static and based on the email address. Instead, issue a one-time code.

**Jump Into Hisec**: Normally, when a user who has multi-factor auth on their account logs in, we prompt them for factors but don't put them in high security. You usually don't want to go do high-security stuff immediately after login, and it would be confusing and annoying if normal logins gave you a "YOU ARE IN HIGH SECURITY" alert bubble.

However, if we're taking you to the password reset screen, we //do// want to put the user in high security, since that screen requires high security. If we don't do this, the user gets two factor prompts in a row.

To accomplish this, we set a cookie when we know we're sending the user into a high security workflow. This cookie makes login finalization upgrade all the way from "partial" to "high security", instead of stopping halfway at "normal". This is safe because the user has just passed a factor check; the only reason we don't normally do this is to reduce annoyance.

**Some UI Cleanup**: Some of this was using really old UI. Modernize it a bit.

Test Plan:
  - **One Time Resets**
    - Used a reset link.
    - Tried to reuse a reset link, got denied.
    - Verified each link is different.
  - **Coupling of Email Verification and One-Time Login**
    - Verified that `bin/auth`, password reset, and username change links do not have an email verifying URI component.
    - Tried to tack one on, got denied.
    - Used the welcome email link to login + verify.
    - Tried to mutate the URI to not verify, or verify something else: got denied.
  - **Message Customization**
    - Viewed messages on the different workflows. They seemed OK.
  - **Reset Emails Going to Main Account Email**
    - Sent password reset email to non-primary email.
    - Received email at specified address.
    - Verified it does not verify the address.
  - **Password Reset Without Old Password**
    - Reset password without knowledge of old one after email reset.
    - Tried to do that without a key, got denied.
    - Tried to reuse a key, got denied.
  - **Jump Into Hisec**
    - Logged in with MFA user, got factor'd, jumped directly into hisec.
    - Logged in with non-MFA user, no factors, normal password reset.
  - **Some UI Cleanup**
    - Viewed new UI.
  - **Misc**
    - Created accounts, logged in with welcome link, got verified.
    - Changed a username, used link to log back in.

Reviewers: btrahan

Reviewed By: btrahan

Subscribers: epriestley

Maniphest Tasks: T4398

Differential Revision: https://secure.phabricator.com/D9252
2014-05-22 10:41:00 -07:00
epriestley
a04e138ae2 Minor cleanup of some session code
Summary: Ref T4398. Add some documentation and use `phutil_units()`.

Test Plan:
  - Established a web session.
  - Established a conduit session.
  - Entered and exited hisec.
  - Used "Sessions" panel to examine results.

Reviewers: btrahan

Reviewed By: btrahan

Subscribers: epriestley

Maniphest Tasks: T4398

Differential Revision: https://secure.phabricator.com/D8924
2014-05-01 10:23:19 -07:00
epriestley
50376aad04 Require multiple auth factors to establish web sessions
Summary:
Ref T4398. This prompts users for multi-factor auth on login.

Roughly, this introduces the idea of "partial" sessions, which we haven't finished constructing yet. In practice, this means the session has made it through primary auth but not through multi-factor auth. Add a workflow for bringing a partial session up to a full one.

Test Plan:
  - Used Conduit.
  - Logged in as multi-factor user.
  - Logged in as no-factor user.
  - Tried to do non-login-things with a partial session.
  - Reviewed account activity logs.

{F149295}

Reviewers: btrahan

Reviewed By: btrahan

Subscribers: epriestley

Maniphest Tasks: T4398

Differential Revision: https://secure.phabricator.com/D8922
2014-05-01 10:23:02 -07:00
epriestley
23e654ec2b Rate limit multi-factor actions
Summary: Ref T4398. Prevent users from brute forcing multi-factor auth by rate limiting attempts. This slightly refines the rate limiting to allow callers to check for a rate limit without adding points, and gives users credit for successfully completing an auth workflow.

Test Plan: Tried to enter hisec with bad credentials 11 times in a row, got rate limited.

Reviewers: btrahan

Reviewed By: btrahan

Subscribers: epriestley

Maniphest Tasks: T4398

Differential Revision: https://secure.phabricator.com/D8911
2014-04-30 14:30:31 -07:00
epriestley
a017a8e02b Make two-factor auth actually work
Summary:
Ref T4398. Allows auth factors to render and validate when prompted to take a hi-sec action.

This has a whole lot of rough edges still (see D8875) but does fundamentally work correctly.

Test Plan:
  - Added two different TOTP factors to my account for EXTRA SECURITY.
  - Took hisec actions with no auth factors, and with attached auth factors.
  - Hit all the error/failure states of the hisec entry process.
  - Verified hisec failures appear in activity logs.

Reviewers: btrahan

Reviewed By: btrahan

Subscribers: epriestley

Maniphest Tasks: T4398

Differential Revision: https://secure.phabricator.com/D8886
2014-04-28 10:20:54 -07:00
epriestley
3f5a55fa6e Let users review their own account activity logs
Summary:
Ref T4398. This adds a settings panel for account activity so users can review activity on their own account. Some goals are:

  - Make it easier for us to develop and support auth and credential information, see T4398. This is the primary driver.
  - Make it easier for users to understand and review auth and credential information (see T4842 for an example -- this isn't there yet, but builds toward it).
  - Improve user confidence in security by making logging more apparent and accessible.

Minor corresponding changes:

  - Entering and exiting hisec mode is now logged.
  - This, sessions, and OAuth authorizations have moved to a new "Sessions and Logs" area, since "Authentication" was getting huge.

Test Plan:
  - Viewed new panel.
  - Viewed old UI.
  - Entered/exited hisec and got prompted.

Reviewers: btrahan

Reviewed By: btrahan

Subscribers: epriestley

Maniphest Tasks: T4398

Differential Revision: https://secure.phabricator.com/D8871
2014-04-27 17:32:09 -07:00
epriestley
f42ec84d0c Add "High Security" mode to support multi-factor auth
Summary:
Ref T4398. This is roughly a "sudo" mode, like GitHub has for accessing SSH keys, or Facebook has for managing credit cards. GitHub actually calls theirs "sudo" mode, but I think that's too technical for big parts of our audience. I've gone with "high security mode".

This doesn't actually get exposed in the UI yet (and we don't have any meaningful auth factors to prompt the user for) but the workflow works overall. I'll go through it in a comment, since I need to arrange some screenshots.

Test Plan: See guided walkthrough.

Reviewers: chad, btrahan

Reviewed By: btrahan

Subscribers: epriestley

Maniphest Tasks: T4398

Differential Revision: https://secure.phabricator.com/D8851
2014-04-27 17:31:11 -07:00
epriestley
69ddb0ced6 Issue "anonymous" sessions for logged-out users
Summary:
Ref T4339. Ref T4310. Currently, sessions look like `"afad85d675fda87a4fadd54"`, and are only issued for logged-in users. To support logged-out CSRF and (eventually) external user sessions, I made two small changes:

  - First, sessions now have a "kind", which is indicated by a prefix, like `"A/ab987asdcas7dca"`. This mostly allows us to issue session queries more efficiently: we don't have to issue a query at all for anonymous sessions, and can join the correct table for user and external sessions and save a query. Generally, this gives us more debugging information and more opportunity to recover from issues in a user-friendly way, as with the "invalid session" error in this diff.
  - Secondly, if you load a page and don't have a session, we give you an anonymous session. This is just a secret with no special significance.

This does not implement CSRF yet, but gives us a client secret we can use to implement it.

Test Plan:
  - Logged in.
  - Logged out.
  - Browsed around.
  - Logged in again.
  - Went through link/register.

Reviewers: btrahan

Reviewed By: btrahan

CC: aran

Maniphest Tasks: T4310, T4339

Differential Revision: https://secure.phabricator.com/D8043
2014-01-23 14:03:22 -08:00
epriestley
2ec45d42a6 Remove session limits and sequencing
Summary:
Ref T4310. Fixes T3720. This change:

  - Removes concurrent session limits. Instead, unused sessions are GC'd after a while.
  - Collapses all existing "web-1", "web-2", etc., sessions into "web" sessions.
  - Dramatically simplifies the code for establishing a session (like omg).

Test Plan: Ran migration, checked Sessions panel and database for sanity. Used existing session. Logged out, logged in. Ran Conduit commands.

Reviewers: btrahan

Reviewed By: btrahan

CC: aran

Maniphest Tasks: T4310, T3720

Differential Revision: https://secure.phabricator.com/D7978
2014-01-15 17:27:59 -08:00
epriestley
acb141cf52 Expire and garbage collect unused sessions
Summary:
Ref T3720. Ref T4310. Currently, we limit the maximum number of concurrent sessions of each type. This is primarily because sessions predate garbage collection and we had no way to prevent the session table from growing fairly quickly and without bound unless we did this.

Now that we have GC (and it's modular!) we can just expire unused sessions after a while and throw them away:

  - Add a `sessionExpires` column to the table, with a key.
  - Add a GC for old sessions.
  - When we establish a session, set `sessionExpires` to the current time plus the session TTL.
  - When a user uses a session and has used up more than 20% of the time on it, extend the session.

In addition to this, we could also rotate sessions, but I think that provides very little value. If we do want to implement it, we should hold it until after T3720 / T4310.

Test Plan:
  - Ran schema changes.
  - Looked at database.
  - Tested GC:
    - Started GC.
    - Set expires on one row to the past.
    - Restarted GC.
    - Verified GC nuked the session.
  - Logged in.
  - Logged out.
  - Ran Conduit method.
  - Tested refresh:
    - Set threshold to 0.0001% instead of 20%.
    - Loaded page.
    - Saw a session extension ever few page loads.

Reviewers: btrahan

Reviewed By: btrahan

CC: aran

Maniphest Tasks: T4310, T3720

Differential Revision: https://secure.phabricator.com/D7976
2014-01-15 13:56:16 -08:00
epriestley
d392a8f157 Replace "web" and "conduit" magic session strings with constants
Summary: Ref T4310. Ref T3720. We use bare strings to refer to session types in several places right now; use constants instead.

Test Plan: grep; logged out; logged in; ran Conduit commands.

Reviewers: btrahan

Reviewed By: btrahan

CC: aran

Maniphest Tasks: T4310, T3720

Differential Revision: https://secure.phabricator.com/D7963
2014-01-14 13:22:34 -08:00
epriestley
eef314b701 Separate session management from PhabricatorUser
Summary: Ref T4310. Ref T3720. Session operations are currently part of PhabricatorUser. This is more tightly coupled than needbe, and makes it difficult to establish login sessions for non-users. Move all the session management code to a `SessionEngine`.

Test Plan:
  - Viewed sessions.
  - Regenerated Conduit certificate.
  - Verified Conduit sessions were destroyed.
  - Logged out.
  - Logged in.
  - Ran conduit commands.
  - Viewed sessions again.

Reviewers: btrahan

Reviewed By: btrahan

CC: aran

Maniphest Tasks: T4310, T3720

Differential Revision: https://secure.phabricator.com/D7962
2014-01-14 13:22:27 -08:00