Problem/Motivation

The user_pass_rehash function generates a HMAC keyed by user credentials. Its primary purpose is to generate tamper-proof password-reset links and ensure that they can only be used once.

A nice effect of using the hashed password as the HMAC key is that existing authentication tokens automatically become invalid if the password is changed. This is a feature which is interesting for other use-cases as well, e.g. #2472535: Remove SessionManager::delete in favor of a portable mechanism to invalid sessions of authenticated users.

Proposed resolution

Extract account_token service (AccountTokenGenerator) from user_pass_rehash().

Remaining tasks

Write tests.
Review, commit.

User interface changes

None.

API changes

Deprecates user_pass_rehash().

Beta phase evaluation

Reference: https://www.drupal.org/core/beta-changes
Issue category Task
Issue priority Not critical
Prioritized changes The main goal of this issue is improving DX for better security
Disruption Disruptive for live sites because this will render existing password-reset / account-cancel links invalid when updating
CommentFileSizeAuthor
#23 2486415-nr-bot.txt155 bytesneeds-review-queue-bot
#3 interdiff.txt4.37 KBznerol
#3 rework_user_pass_rehash-2486415-3.patch18.99 KBznerol
#1 rework_user_pass_rehash-2486415-1.patch18.73 KBznerol

Comments

znerol’s picture

znerol commented
Status: Active » Needs review
Issue tags: +Needs tests
StatusFileSize
new rework_user_pass_rehash-2486415-1.patch18.73 KB

Status: Needs review » Needs work

The last submitted patch, 1: rework_user_pass_rehash-2486415-1.patch, failed testing.

znerol’s picture

znerol commented
Status: Needs work » Needs review
StatusFileSize
new rework_user_pass_rehash-2486415-3.patch18.99 KB
new interdiff.txt4.37 KB

Fixed tests. Also added a paragraph to the class documentation about the necessity to either limit the validity time of tokens or supply a nonce in order to prevent against replay attacks. I wonder whether we should add a $nonce parameter to get() / validate()?

cpj’s picture

cpj commented

@znerol - I really like this abstraction of the user_pass_rehash to a service. Very useful.

andypost’s picture

andypost
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Primary language Russian
commented

what's left here?

znerol’s picture

znerol commented
Issue summary: View changes
znerol’s picture

znerol commented

Added beta evaluation. Still needs tests.

Version: 8.0.x-dev » 8.1.x-dev

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Version: 8.5.x-dev » 8.6.x-dev

Drupal 8.5.6 was released on August 1, 2018 and is the final bugfix release for the Drupal 8.5.x series. Drupal 8.5.x will not receive any further development aside from security fixes. Sites should prepare to update to 8.6.0 on September 5, 2018. (Drupal 8.6.0-rc1 is available for testing.)

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jibran’s picture

jibran
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Primary language Urdu
Location Toronto, Canada
commented
Version: 8.6.x-dev » 8.8.x-dev
andypost’s picture

andypost
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Primary language Russian
commented
Version: 8.8.x-dev » 9.0.x-dev

It is api addition

avpaderno’s picture

avpaderno
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Primary language Italian
Location Brescia, 🇮🇹 🇪🇺
commented
Version: 9.0.x-dev » 8.9.x-dev

API changes are still done before Drupal 9.

Version: 8.9.x-dev » 9.1.x-dev

Drupal 8.9.0-beta1 was released on March 20, 2020. 8.9.x is the final, long-term support (LTS) minor release of Drupal 8, which means new developments and disruptive changes should now be targeted against the 9.1.x-dev branch. For more information see the Drupal 8 and 9 minor version schedule and the Allowed changes during the Drupal 8 and 9 release cycles.

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Drupal 9.3.0-rc1 was released on November 26, 2021, which means new developments and disruptive changes should now be targeted for the 9.4.x-dev branch. For more information see the Drupal core minor version schedule and the Allowed changes during the Drupal core release cycle.

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Drupal 9.5.0-beta2 and Drupal 10.0.0-beta2 were released on September 29, 2022, which means new developments and disruptive changes should now be targeted for the 10.1.x-dev branch. For more information see the Drupal core minor version schedule and the Allowed changes during the Drupal core release cycle.

needs-review-queue-bot’s picture

needs-review-queue-bot commented
Status: Needs review » Needs work
StatusFileSize
new 2486415-nr-bot.txt155 bytes

The Needs Review Queue Bot tested this issue. It either no longer applies to Drupal core, or fails the Drupal core commit checks. Therefore, this issue status is now "Needs work".

Apart from a re-roll or rebase, this issue may need more work to address feedback in the issue or MR comments. To progress an issue, incorporate this feedback as part of the process of updating the issue. This helps other contributors to know what is outstanding.

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Version: 10.1.x-dev » 11.x-dev

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Version: 11.x-dev » main

Drupal core is now using the main branch as the primary development branch. New developments and disruptive changes should now be targeted to the main branch.

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