What is CVE-2016-2403?

CVE-2016-2403 is a critical-severity vulnerability in Sensiolabs Symfony, classified under Improper Authentication. CVSS score: 9.8/10. Published 2017-02-07.

How severe is CVE-2016-2403?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Auth bypass in Sensiolabs Symfony

CVE-2016-2403

Symfony before 2.8.6 and 3.x before 3.0.6 allows remote attackers to bypass authentication by logging in with an empty password and valid username, which triggers an unauthenticated bind.

Vulnerability class: Broken Authentication

EPSS: 0.002 (35.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Sensiolabs Symfony — versions 2.8.0, 2.8.1, 2.8.2
N/a — versions n/a

Weakness classification (CWE)

CWE-287 — Improper Authentication

References

cve@mitre.org (x_refsource_CONFIRM, Vendor Advisory)
cve@mitre.org (vendor-advisory, x_refsource_DEBIAN)
cve@mitre.org (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_BID)

Frequently asked questions

What is CVE-2016-2403?: CVE-2016-2403 is a critical-severity vulnerability in Sensiolabs Symfony, classified under Improper Authentication. CVSS score: 9.8/10. Published 2017-02-07.
How severe is CVE-2016-2403?: Critical severity. CVSS v3 base score is 9.8 out of 10.