CVE-2018-11407
CRITICALSymfony 2.8.0-2.8.36 - Unauthenticated Authentication Bypass via Empty LDAP Password
Title source: llmDescription
An issue was discovered in the Ldap component in Symfony 2.8.x before 2.8.37, 3.3.x before 3.3.17, 3.4.x before 3.4.7, and 4.0.x before 4.0.7. It allows remote attackers to bypass authentication by logging in with a "null" password and valid username, which triggers an unauthenticated bind. NOTE: this issue exists because of an incomplete fix for CVE-2016-2403.
References (1)
Core 1
Core References
Vendor Advisory x_refsource_confirm
https://symfony.com/blog/cve-2018-11407-unauthorized-access-on-a-misconfigured-ldap-server-when-using-an-empty-password
Scores
CVSS v3
9.8
EPSS
0.0234
EPSS Percentile
81.5%
Attack Vector
NETWORK
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Details
CWE
CWE-287
Status
published
Products (4)
sensiolabs/symfony
2.8.0 - 2.8.37
symfony/security
2.8.0 - 2.8.37Packagist
symfony/security-core
2.8.0 - 2.8.37Packagist
symfony/symfony
2.8.0 - 2.8.37Packagist
Published
Jun 13, 2018
Tracked Since
Feb 18, 2026