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Authentication Bypass in TYPO3 CMS

Moderate severity GitHub Reviewed Published Jun 5, 2024 to the GitHub Advisory Database • Updated Jun 5, 2024

Package

composer typo3/cms (Composer)

Affected versions

>= 6.2.0, < 6.2.20
>= 7.6.0, < 7.6.5
>= 8.0.0, < 8.0.1

Patched versions

6.2.20
7.6.5
8.0.1

Description

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.

References

Published to the GitHub Advisory Database Jun 5, 2024
Reviewed Jun 5, 2024
Last updated Jun 5, 2024

Severity

Moderate

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
None

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

Weaknesses

CVE ID

No known CVE

GHSA ID

GHSA-6xh8-8pfv-53vx

Source code

No known source code
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