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SAML: allowed clock/time difference from IdP #8731

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Nov 18, 2020
Merged

SAML: allowed clock/time difference from IdP #8731

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@localguru localguru commented Nov 6, 2020 •
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Allowed clock/time difference in seconds from IdP

Despite an own and reliable NTP configuration (e.g. timesyncd) the clock of the IdP may drift slightly ahead of the system clocks of your matrix-synapse server. These cases of time difference can result in NotBefore / NotOnOrAfter assertion fails and a SAML login will not be accepted. You can allow for a small amount of clock drift in seconds using accepted_time_diff in saml2_config of your homeserver.yaml config.

see docs: https://pysaml2.readthedocs.io/en/latest/howto/config.html#accepted-time-diff

@localguru localguru changed the title SAML: allowed clock/time difference from Identity Provider SAML: allowed clock/time difference from IdP Nov 6, 2020
@erikjohnston erikjohnston requested a review from a team November 9, 2020 17:23
@clokep clokep added the X-Awaiting-Changes A contributed PR which needs changes and re-review before it can be merged label Nov 11, 2020
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clokep commented Nov 18, 2020

Looks good! Thank you. 👍

@clokep clokep merged commit d356588 into matrix-org:develop Nov 18, 2020
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clokep commented Nov 18, 2020

@localguru I merged this, but I realized you haven't signed off on your contribution, could you take a look at https://github.com/matrix-org/synapse/blob/develop/CONTRIBUTING.md#sign-off and add the necessary comment to this PR? Thank you!

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Signed-off-by: Marcus Schopen [email protected]

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clokep commented Nov 18, 2020

Thank you! 🎉

netbsd-srcmastr pushed a commit to NetBSD/pkgsrc that referenced this pull request Dec 9, 2020
@Midar
Update chat/matrix-synapse to 1.24.0
72f5fd3 
Synapse 1.24.0 (2020-12-09)
===========================

Due to the two security issues highlighted below, server administrators are
encouraged to update Synapse. We are not aware of these vulnerabilities being
exploited in the wild.

Security advisory
-----------------

The following issues are fixed in v1.23.1 and v1.24.0.

- There is a denial of service attack
  ([CVE-2020-26257](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-26257))
  against the federation APIs in which future events will not be correctly sent
  to other servers over federation. This affects all servers that participate in
  open federation. (Fixed in [#8776](matrix-org/synapse#8776)).

- Synapse may be affected by OpenSSL
  [CVE-2020-1971](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-1971).
  Synapse administrators should ensure that they have the latest versions of
  the cryptography Python package installed.

To upgrade Synapse along with the cryptography package:

* Administrators using the [`matrix.org` Docker
  image](https://hub.docker.com/r/matrixdotorg/synapse/) or the [Debian/Ubuntu
  packages from
  `matrix.org`](https://github.com/matrix-org/synapse/blob/master/INSTALL.md#matrixorg-packages)
  should ensure that they have version 1.24.0 or 1.23.1 installed: these images include
  the updated packages.
* Administrators who have [installed Synapse from
  source](https://github.com/matrix-org/synapse/blob/master/INSTALL.md#installing-from-source)
  should upgrade the cryptography package within their virtualenv by running:
  ```sh
  <path_to_virtualenv>/bin/pip install 'cryptography>=3.3'
  ```
* Administrators who have installed Synapse from distribution packages should
  consult the information from their distributions.

Internal Changes
----------------

- Add a maximum version for pysaml2 on Python 3.5. ([\#8898](matrix-org/synapse#8898))


Synapse 1.24.0rc2 (2020-12-04)
==============================

Bugfixes
--------

- Fix a regression in v1.24.0rc1 which failed to allow SAML mapping providers which were unable to redirect users to an additional page. ([\#8878](matrix-org/synapse#8878))


Internal Changes
----------------

- Add support for the `prometheus_client` newer than 0.9.0. Contributed by Jordan Bancino. ([\#8875](matrix-org/synapse#8875))


Synapse 1.24.0rc1 (2020-12-02)
==============================

Features
--------

- Add admin API for logging in as a user. ([\#8617](matrix-org/synapse#8617))
- Allow specification of the SAML IdP if the metadata returns multiple IdPs. ([\#8630](matrix-org/synapse#8630))
- Add support for re-trying generation of a localpart for OpenID Connect mapping providers. ([\#8801](matrix-org/synapse#8801), [\#8855](matrix-org/synapse#8855))
- Allow the `Date` header through CORS. Contributed by Nicolas Chamo. ([\#8804](matrix-org/synapse#8804))
- Add a config option, `push.group_by_unread_count`, which controls whether unread message counts in push notifications are defined as "the number of rooms with unread messages" or "total unread messages". ([\#8820](matrix-org/synapse#8820))
- Add `force_purge` option to delete-room admin api. ([\#8843](matrix-org/synapse#8843))


Bugfixes
--------

- Fix a bug where appservices may be sent an excessive amount of read receipts and presence. Broke in v1.22.0. ([\#8744](matrix-org/synapse#8744))
- Fix a bug in some federation APIs which could lead to unexpected behaviour if different parameters were set in the URI and the request body. ([\#8776](matrix-org/synapse#8776))
- Fix a bug where synctl could spawn duplicate copies of a worker. Contributed by Waylon Cude. ([\#8798](matrix-org/synapse#8798))
- Allow per-room profiles to be used for the server notice user. ([\#8799](matrix-org/synapse#8799))
- Fix a bug where logging could break after a call to SIGHUP. ([\#8817](matrix-org/synapse#8817))
- Fix `register_new_matrix_user` failing with "Bad Request" when trailing slash is included in server URL. Contributed by @angdraug. ([\#8823](matrix-org/synapse#8823))
- Fix a minor long-standing bug in login, where we would offer the `password` login type if a custom auth provider supported it, even if password login was disabled. ([\#8835](matrix-org/synapse#8835))
- Fix a long-standing bug which caused Synapse to require unspecified parameters during user-interactive authentication. ([\#8848](matrix-org/synapse#8848))
- Fix a bug introduced in v1.20.0 where the user-agent and IP address reported during user registration for CAS, OpenID Connect, and SAML were of the wrong form. ([\#8784](matrix-org/synapse#8784))


Improved Documentation
----------------------

- Clarify the usecase for a msisdn delegate. Contributed by Adrian Wannenmacher. ([\#8734](matrix-org/synapse#8734))
- Remove extraneous comma from JSON example in User Admin API docs. ([\#8771](matrix-org/synapse#8771))
- Update `turn-howto.md` with troubleshooting notes. ([\#8779](matrix-org/synapse#8779))
- Fix the example on how to set the `Content-Type` header in nginx for the Client Well-Known URI. ([\#8793](matrix-org/synapse#8793))
- Improve the documentation for the admin API to list all media in a room with respect to encrypted events. ([\#8795](matrix-org/synapse#8795))
- Update the formatting of the `push` section of the homeserver config file to better align with the [code style guidelines](https://github.com/matrix-org/synapse/blob/develop/docs/code_style.md#configuration-file-format). ([\#8818](matrix-org/synapse#8818))
- Improve documentation how to configure prometheus for workers. ([\#8822](matrix-org/synapse#8822))
- Update example prometheus console. ([\#8824](matrix-org/synapse#8824))


Deprecations and Removals
-------------------------

- Remove old `/_matrix/client/*/admin` endpoints which were deprecated since Synapse 1.20.0. ([\#8785](matrix-org/synapse#8785))
- Disable pretty printing JSON responses for curl. Users who want pretty-printed output should use [jq](https://stedolan.github.io/jq/) in combination with curl. Contributed by @tulir. ([\#8833](matrix-org/synapse#8833))


Internal Changes
----------------

- Simplify the way the `HomeServer` object caches its internal attributes. ([\#8565](matrix-org/synapse#8565), [\#8851](matrix-org/synapse#8851))
- Add an example and documentation for clock skew to the SAML2 sample configuration to allow for clock/time difference between the homserver and IdP. Contributed by @localguru. ([\#8731](matrix-org/synapse#8731))
- Generalise `RoomMemberHandler._locally_reject_invite` to apply to more flows than just invite. ([\#8751](matrix-org/synapse#8751))
- Generalise `RoomStore.maybe_store_room_on_invite` to handle other, non-invite membership events. ([\#8754](matrix-org/synapse#8754))
- Refactor test utilities for injecting HTTP requests. ([\#8757](matrix-org/synapse#8757), [\#8758](matrix-org/synapse#8758), [\#8759](matrix-org/synapse#8759), [\#8760](matrix-org/synapse#8760), [\#8761](matrix-org/synapse#8761), [\#8777](matrix-org/synapse#8777))
- Consolidate logic between the OpenID Connect and SAML code. ([\#8765](matrix-org/synapse#8765))
- Use `TYPE_CHECKING` instead of magic `MYPY` variable. ([\#8770](matrix-org/synapse#8770))
- Add a commandline script to sign arbitrary json objects. ([\#8772](matrix-org/synapse#8772))
- Minor log line improvements for the SSO mapping code used to generate Matrix IDs from SSO IDs. ([\#8773](matrix-org/synapse#8773))
- Add additional error checking for OpenID Connect and SAML mapping providers. ([\#8774](matrix-org/synapse#8774), [\#8800](matrix-org/synapse#8800))
- Add type hints to HTTP abstractions. ([\#8806](matrix-org/synapse#8806), [\#8812](matrix-org/synapse#8812))
- Remove unnecessary function arguments and add typing to several membership replication classes. ([\#8809](matrix-org/synapse#8809))
- Optimise the lookup for an invite from another homeserver when trying to reject it. ([\#8815](matrix-org/synapse#8815))
- Add tests for `password_auth_provider`s. ([\#8819](matrix-org/synapse#8819))
- Drop redundant database index on `event_json`. ([\#8845](matrix-org/synapse#8845))
- Simplify `uk.half-shot.msc2778.login.application_service` login handler. ([\#8847](matrix-org/synapse#8847))
- Refactor `password_auth_provider` support code. ([\#8849](matrix-org/synapse#8849))
- Add missing `ordering` to background database updates. ([\#8850](matrix-org/synapse#8850))
- Allow for specifying a room version when creating a room in unit tests via `RestHelper.create_room_as`. ([\#8854](matrix-org/synapse#8854))
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