Description
The attemptAuthentication function in Component/Security/Http/Firewall/UsernamePasswordFormAuthenticationListener.php in Symfony before 2.3.41, 2.7.x before 2.7.13, 2.8.x before 2.8.6, and 3.0.x before 3.0.6 does not limit the length of a username stored in a session, which allows remote attackers to cause a denial of service (session storage consumption) via a series of authentication attempts with long, non-existent usernames.
Published: 2016-06-01
Score: 7.5 High
EPSS: 1.4% Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories
Source ID Title
Debian DSA Debian DSA DSA-3588-1 symfony security update
EUVD EUVD EUVD-2022-5580 The attemptAuthentication function in Component/Security/Http/Firewall/UsernamePasswordFormAuthenticationListener.php in Symfony before 2.3.41, 2.7.x before 2.7.13, 2.8.x before 2.8.6, and 3.0.x before 3.0.6 does not limit the length of a username stored in a session, which allows remote attackers to cause a denial of service (session storage consumption) via a series of authentication attempts with long, non-existent usernames.
Github GHSA Github GHSA GHSA-whgv-8cg3-7hcm Symphony Denial of Service Via Overlong Usernames
History

No history.

Subscriptions

Debian Debian Linux
Sensiolabs Symfony
cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2024-08-06T00:32:24.596Z

Reserved: 2016-05-02T00:00:00.000Z

Link: CVE-2016-4423

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2016-06-01T22:59:02.457

Modified: 2026-05-06T22:30:45.220

Link: CVE-2016-4423

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses