Symfony is a PHP framework for web and console applications and a set of reusable PHP components. The ability to enumerate users was possible without relevant permissions due to different handling depending on whether the user existed or not when attempting to use the switch users functionality. We now ensure that 403s are returned whether the user exists or not if a user cannot switch to a user or if the user does not exist. The patch for this issue is available for branch 3.4.
Advisories
Source ID Title
Debian DLA Debian DLA DLA-3493-1 symfony security update
EUVD EUVD EUVD-2021-0960 Symfony is a PHP framework for web and console applications and a set of reusable PHP components. The ability to enumerate users was possible without relevant permissions due to different handling depending on whether the user existed or not when attempting to use the switch users functionality. We now ensure that 403s are returned whether the user exists or not if a user cannot switch to a user or if the user does not exist. The patch for this issue is available for branch 3.4.
Github GHSA Github GHSA GHSA-5pv8-ppvj-4h68 Prevent user enumeration using Guard or the new Authenticator-based Security
Ubuntu USN Ubuntu USN USN-5290-1 Symfony vulnerabilities
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2024-08-03T18:09:16.141Z

Reserved: 2020-12-22T00:00:00

Link: CVE-2021-21424

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2021-05-13T16:15:07.777

Modified: 2024-11-21T05:48:20.027

Link: CVE-2021-21424

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.