CVE-2018-11407

    Dashboard / Vulnerabilities / CVE-2018-11407

    CVE-2018-11407

    Published: 13 Jun 2018Last Modified: 7 Aug 2026

    Summary:

    Details: 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: https://symfony.com/blog/cve-2018-11407-unauthorized-access-on-a-misconfigured-ldap-server-when-using-an-empty-password

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- a8d5dd00894f8b5e3edb897f4504c51ddc442370
    Fixed -779963cae79262cc38d7bb2ad7f15f21ee80a16d

    Affected versions

    v3.3.16
    v3.3.15
    v3.3.14
    v3.3.13
    v3.3.12
    v3.3.11
    v3.3.10
    v3.3.9
    v3.3.8
    v3.3.7
    v3.3.6
    v3.3.5
    v3.3.4
    v3.3.3
    v3.3.2
    v3.3.1
    v3.3.0

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High