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MEDIUM5.4

GHSA-6xh8-8pfv-53vx

Authentication Bypass in TYPO3 CMS

Quick fix

GHSA-6xh8-8pfv-53vx — typo3/cms: upgrade to the fixed version with the command below.

composer require typo3/cms:^6.2.20

Details

The default authentication service misses to invalidate empty strings as password. Therefore it is possible to authenticate backend and frontend users without password set in the database. Note: TYPO3 does not allow to create user accounts without a password. Your TYPO3 installation might only be affected if there is a third party component creating user accounts without password by directly manipulating the database.

Are you affected?

Enter the version of the package you're using.

Affected packages

Packagist/typo3/cms
Introduced in: 6.2.0Fixed in: 6.2.20
Fixcomposer require typo3/cms:^6.2.20
Packagist/typo3/cms
Introduced in: 7.6.0Fixed in: 7.6.5
Fixcomposer require typo3/cms:^7.6.5
Packagist/typo3/cms
Introduced in: 8.0.0Fixed in: 8.0.1
Fixcomposer require typo3/cms:^8.0.1

References